Toyota Corolla 2006 Engine Diagram

1 COROLLA P o w e r S o u rc e S ta rtin g Ig n itio n 1 5 AM2 B IG2 6 B–W ST2 4 R 4 3 2 B–W ∗ ∗ ∗ ∗ 6 IM R (A/T) R (A/T) R (M/T) I10 Ignition SW 15A AM2 Engine Control Module < 3–10> 1 2 3 4 : w/ TVIP System : w/o TVIP System : 1ZZ–FE : 2ZZ–GE 5 IL E B 3 IA2 J 2(A), J 3(B) Junction Connector 12 IC B–W R (A/T) R (M/T) 2 II2 A A A A ST Relay 1 1 1 IM 11 IL 4 IF B (A/T) B (A/T) II2 +B 1 B (∗4) I 4(A), (B) Ignition Coil and Igniter No. 3 +B GND 4 A (∗3) 3 A 2 A GND 4 A (∗3) 3 A 2 A GND 4 A (∗3) 2 A 3 A GND 4 A (∗3) 3 B 2 B 4 B (∗4) 3 B 2 B 4 B (∗4) 3 B 2 B 4 B (∗4) 2 B 3 B 4 B (∗4) IGF IGT IGT IGF IGT W–B W W–B W–B J 2(A), J 3(B) Junction Connector F A F A F A W L–Y L–Y L–Y L–Y GR W–B Engine Control Module < 3–5> < 3–6> < 4–5> < 4–6> Left Side of the Cylinder Head EC M 251 Behind the Combination Meter F A Y–G IE J6 Junction Connector L–Y W–B W–B IGF W–B L–Y GR W–B L–Y Y–G W–B L–Y J 2(A) Junction Connector IGF Engine Control Module< 3–10> < 4–4> A Combination Meter< 28–3> W–B S 2(A), S 3(B) 1 B (∗4) +B 2 A R–L 1 B Starter I 5(A), (B) Ignition Coil and Igniter No. 4 1 A (∗3) B (A/T) B (M/T) B (∗2) B (∗1) B 1 A 1 B (∗4) 1 A (∗3) H B B (∗2) FL MAIN 2. 0L B–R I 3(A), (B) Ignition Coil and Igniter No. 2 1 A (∗3) 3 A R–L B (∗2) B (∗1) B (∗2 M/T) B (∗1 M/T) B (∗1) G A G A B–W B–W +B B–W II1 B (∗2) Battery N1 Noise Filter (Ignition) B (M/T) B–R (∗1) B–W (∗1) S8 Starter Cut Relay 11 G A B B 7 1 B (∗4) 1 2 B (∗1) 1 1A N 11 IA5 I 2(A), (B) Ignition Coil and Igniter No. 1 1 A (∗3) IGT 4 1 P 5 1 B–W B–W W–B B (∗2) B 30A MAIN L B–W B–R 3 2 2 B–W B B–W C8 Clutch Start SW TVIP ECU < 19–3> 1 4 A2 Park/Neutral Position SW 2 IA4 B–W 5 10 EA1 R (A/T) B–R COROLLA (EM00H0U) 3 3 IM 12 P o w e r S o u rc e M OVERALL ELECTRICAL WIRING DIAGRAM 252 2 COROLLA C h a rg in g 1 4 3 2 B–Y B–Y IG1 2 B–W 1 AM1 W ACC W 1 IA 2 IF 5 1 5 IL W B 5 AM2 IG2 6 B–W 10A GAUGE ST2 3 I10 Ignition SW 6 IM 15A AM2 32 1 1C 31 1 2 II2 Y B C B 2 II2 R–W B–G W Y FL MAIN 2. 0L W–B B A 1 1A J 4(A), J 5(B) Junction Connector 10 3B W–B R–W 1 14 5 EA1 9 3B W 1 8 3B 30A MAIN 5A ALT–S 100A ALT 1 2 Y Y 2 22 3B R–W 1 10 IH R–W 1 1B 4 IF 20 3B B–R 1 1D W B–R W W B–G 2 IA4 C9 Combination Meter 3 IM 2 IG Charge Daytime Running Light Relay< 6–2> 1 IB 2 8 IK B–O 25A AM1 W COROLLA (EM00H0U) 12 IF IG1 Relay 1 A L S A B B Battery IG A 3 1 A 2 G 1(A), G 2(B) Generator Behind the Combination Meter IE A J6 Junction Connector J7 Junction Connector Right Kick Panel IG (Cont. next page) 3 COROLLA C ru is e C o n tro l (1 Z Z – F E ) P o w e r S o u rc e 1 E n g in e C o n tro l (1 Z Z – F E ) 4 3 2 R–B A B–R ACC 1 AM1 IG1 2 B–Y 8 IA7 B–W B–W B B–O 32 IG2 6 ST2 7 IJ 12 IF B–W 6 IM B–W G–R B–O B–O 23 II2 3 7 IA5 11 D PI W 6 C +BM D CCS 10 C 24 C BR G–Y L G–O B–W 2 3 2 Spiral Cable 3 ECC 17 3C 4 CRUISE 20 3C 1 6 IA5 RES/ ACC L L Stop Light System < 9–2> G–O 19 IA7 4 II1 2 CCS 10 II1 SET/ COAST C10 Combination SW S9 Stop Light SW 5 13 C FC 18 3C B–R 7 3 4 M 12 C W–B L 8 EA1 D 12 IC B–R 2 II1 B–R 2 9 F10 Fuel Pump C13 Cruise Control Clutch SW A2 A/T Shift Lever Position SW 1 R–W J4 Junction Connector B–R 15A EFI2 20A EFI 30A MAIN 100A ALT 10A ETCS 1 B 1 10 D BATT E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module 2 19 ID B R–W R–W W–B W–B B B 1 4 IG 3 D B–R 8 D IGSW MREL 33 R–Y 14 2 1 1A B–O 10 IH 2 1 1 C/OPN Relay 1 1 1 9 D R–W R–W B–R W 1 2 1 ST1– 2 2 R–W 3 19 3B R–W 2 2 1 1 10A GAUGE 3 20 3B 5 G–R 5 1 IA2 G–R 1 IG1 Relay B–R W 1 1C 1 II1 22 3B 2 IG R–W 1 IA B–W 2 IF EFI Relay 2 IA4 1 1D 1 CRUISE 1 IG 6 IL R–W 8 IK B–W W B–Y B–W 15A AM2 25A AM1 5 IL 3 IM 5 B–R COROLLA (EM00H0U) 7. 5A OBD 3 EA1 R–W 3 1 1 Malfunction Indicator Lamp I10 Ignition SW 1 IB C9 Combination Meter W R–B 5 AM2 B B B 9 EA1 L L FL MAIN 2. 0L CANCEL B L B B B B Battery A BR J7 Junction Connector ED IG Right Kick Panel BH D E Under the Left Quarter Pillar M 253 Front Left Suspension Tower C (Cont. next page) E n g in e C o n tro l (1 Z Z – F E ) A R–B ∗ 1 : Shielded 8 7 6 R–B A B–W II1 2 A 1 2 6 5 B G Y 11 IA7 21 IA7 22 IA7 27 D 28 D VCP2 VPA2 EPA B 23 D EPA2 G 29 D OC1– Y 12 A OC1+ B 13 A THWO 20 IA7 W 14 C F/PS 10 IA7 Y 14 D STP B Y 19 C ELS1 IMI 3 B–Y Y 12 D 27 C IMO Y–R 26 C CF Y 16 B G–W FAN G 14 A ELS2 IGT4 W 13 D 11 A IGF1 B W 24 A IGT3 W 10 A IGT2 IGT1 L–Y 9 A GR Y–G R–L L 8 A # 40 4 W Combination Meter < 28–2> Airbag Sensor Assembly < 17–5> Stop Light SW < 9–2> TAIL Relay(USA) < 10–3> Combination SW (Canada)< 10–3> Transponder Key Computer< 5–3> I9 Injector No. 4 W B Y 4 A # 30 A25 Accel Position Sensor 9 IA7 2 3 A # 20 # 10 I 8(A) Injector No. 3 I7 Injector No. 2 2 A 2 A 1 A 1 1 A 2 B–W B–W 1 I 6(A) Injector No. 1 2 A B–W B–W COROLLA (EM00H0U) 1 A DEF I/UP Fuse < 25–3> B–W Radiator Fan System< 29–3> B–W B–W 1 A C 2(A) Camshaft Timing Oil Control Valve (VVT) 8 Ignition Coil and Igniter No. 1, No. 2, No. 3 and No. 4 < 1–3> < 1–4> B 5 22 D 26 D VPA VCPA E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module PRG VG 30 A 34 A EVG 29 A THA VPMP +B 20 A 1 D MPMP 27 A 4 D VC OX1B 29 B (∗1) 1 2 5 M– M+ VC B A E2 3 D B 16 2 A HT 9 II2 (∗1) 4 A OX E +B 3 A 1 A BR Y BR T6 Throttle Control Motor Throttle Position Sensor B A II2 H 8(A) Heated Oxygen Sensor (Bank 1 Sensor 2) B 4 VTA2 18 W P–B 6 VTA1 II2 B W P–B Y J 2(A), J 3(B) Junction Connector H A BR BR BR II2 H A Y H A BR Y B II2 B Y B B BR W–B BR 21 B 6 B B HT1B 18 A (∗1) B W H A 8 B E LG II1 LG BR B D F B Y B R B B B B C GE01 17 B 1 F B 4 6 ID2 7 ID2 6 M+ 4 B BR 6 M– 3 B W 2 J 2(A), J 3(B) Junction Connector 9 8 VTA2 31 A (∗1) 2 BR 2 4B II2 L5 Canister Pump Module 5 4 4B W–B 1 1 4B 7 BR E2 3 1 8 ID2 R +B 1 ID2 L GR THA 2 ID2 VTA1 21 A E2 Engine Coolant Temp. Sensor 9 ID2 BR II2 R 4 E2G M1 Mass Air Flow Meter V3 VSV (Purge) 2 2 VG THW 19 A L GR R 17 3 4B 3 E2 28 A BR B Y–B L–W G L–B 1 PPMP 21 D BI Lower Back Panel BR C D M OVERALL ELECTRICAL WIRING DIAGRAM 254 3 COROLLA (Cont' d) 3 COROLLA (Cont' d) 16 D1 W B GR BR Skid Control ECU with Actuator < 14–6> < 15–4> Yaw Rate Sensor< 14–8> Steering Sensor< 14–8> Skid Control ECU with Actuator< 14–8> P–B K1 Knock Sensor (Bank 1) P–B P L–R L–R L–R L–R P–B Transponder Key Computer < 5–3> (∗1) W B P–B P L–R V–W B W (∗2) L (∗2) R–Y (∗2) BR W–B W–B W–B J 2(A), J 3(B) Junction Connector W BR B R (A/T) W–B L–R W–B W–B W–B W–B W (∗1) B B (∗1) W Clutch Start SW(M/T) Park/Neutral Position SW(A/T) < 1–2> Ignition SW < 1–3> P1 Power Steering Oil Pressure SW J 4(A), J 5(B) Junction Connector BR (∗1) (∗1) (∗1) BR W–B J 4(A), J 5(B) Junction Connector A A W–B L–R P (∗2) Airbag Sensor Assembly < 17–6> Skid Control ECU with Actuator< 14–6> R–B BAT Occupant Classification ECU< 17–7> Data Link Connector 3 Skid Control ECU with Actuator < 14–6> < 15–4> Combination Meter < 28–2> W (∗2) L (∗2) R–Y (∗2) W–B A A C 1(A) Camshaft Position Sensor C 3(A) Crankshaft Position Sensor W–B W–B (∗1) A A BR BR Behind the Combination Meter IE EB Left Side of the Cylinder Head Right Kick Panel IG M 255 Left Side of the Cylinder Head EC A B J6 A Junction Connector J7 Junction Connector A 2 A A B 1 A A B A B A B II1 II2 10 E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module 21 4B 2 1 A 2 A B BR (∗1) C A C A +B Combination Meter < 28–3> Skid Control ECU with Actuator < 14–6> R–W (∗2) B–W (∗2) W (∗1) B AF– R–W (∗2) B–W (∗2) Air Conditioning System< 30–4> P AF+ A21 Air Fuel Ratio Sensor (Bank 1 Sensor 1) HT 1 E A E A 1 B B 1 4C 28 B COROLLA (EM00H0U) BR D 4 BR B C 3 4 4C 16 4B 13 4B 1 15 D 24 B 33 B 25 B 5 A 17 A 16 A 7 B 8 B 35 B 6 A 7 A 2 B 6 B 31 B 23 B 5 B A B B (∗1) EOM G2+ NE– NE+ E1 STA NSW E04 PSW EC E02 E01 ME01 E03 A1A– A1A+ HA1A 5 4C 1 B Skid Control ECU with Actuator < 15–4> 1 3 4C EKNK KNK1 TC WFSE SIL SPD TACH VSC– ENG– NEO VSC+ ENG+ THE HP A/CS ACMG ACLD 15 2 CG TS SG 5 7 20 D 19 D 18 D 17 C 5 D 31 D 30 D 17 D 25 D 24 D 32 C 1 C 2 C 28 C 33 C 3 3B 17 IA7 16 IA7 4 IA7 6 IA7 5 IA7 2 3B 4 3B 1 3B L–R 4 12 CANL CANH 14 6 Airbag Sensor Assembly< 17–6> 13 WFSE TC SIL 12 11 10 9 R–B A ∗ 1 : Shielded ∗ 2 : w/ VSC E n g in e C o n tro l (1 Z Z – F E ) E n g in e C o n tro l (2 Z Z – G E ) P o w e r S o u rc e 1 4 3 2 R–B A B–W IG2 6 B–W 5 AM2 B–O B–W ST2 8 II1 B–W B–W B–W I9 Injector No. 4 I 8(B) Injector No. 3 I7 Injector No. 2 2 1 IG 1 A 11 D BATT 2 A # 10 W L 19 ID 3 D W 2 MREL B A24 Air Pump Relay 3 4 C Y IGSW R–Y 9 D R–W 1 3 A # 20 4 A # 30 # 40 E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module FC 4 IG B–R 3 2 B 2 1 1 IA2 B–W 2 5 B–O W–B B 4 1 C/OPN Relay B–R B I 6(B) Injector No. 1 R–W 33 1 B 2 1 B II1 B–W 1 1 B 2 B 3 2 IA4 6 IL 8 IK 3 3 IM B B–W 1 EFI Relay R–W R–W 1 IB 3 EA1 B–W B–W B–O B–W 15A AM2 5 1 5 IL W 16 C AIRP 5 D E03 E01 7 B E02 7 A 6 A RSO STA 12 A 16 A PRG ACLV 15 A 19 B 1 B B–O B–R B 1 1 B–O B–R 1 1 1C 9 II1 2 IA5 M B B B B W–B B–O W–B B B W–B B GND VISC 3 2 1 2 B B B FL MAIN 2. 0L 1 DUTY V4 VSV (ACIS) 1 1A 2 1 V3 VSV (Purge) C A I1 Idle Air Control Valve C A 5 J 4(A), J 5(B) Junction Connector 1 4 Clutch Start SW< 1–2> 9 EA1 M L–W L–B B–L 2 F10 Fuel Pump 1 A22 Air Pump Motor 1 15A EFI 1 2 30A MAIN 100A ALT 1 2 W–B W–B G–R 2 2 50A AIR PUMP COROLLA (EM00H0U) 7. 5A OBD 1 B–W B–W 6 IM Malfunction Indicator Lamp 7 IJ C9 Combination Meter B R–B 32 I10 Ignition SW W–B B EK EL W–B Front Left Suspension Tower B W–B W–B Battery B Front Left Fender ED Front Left Suspension Tower BH Under the Left Quarter Pillar Left Side of the Cylinder Head EC B B B B M OVERALL ELECTRICAL WIRING DIAGRAM 256 (Cont. next page) 4 COROLLA L–Y C15 Camshaft Timing Oil Control Valve (VVTL) Air Conditioning System< 30–4> Radiator Fan System< 29–3> L–Y B L–W Y–R Y G–W G W VVL– VVL+ G L GR R Y LG BR W Y–B L–W G R GR L BR BR G A23 Air Pump Pressure Sensor E2 T1 Throttle Position Sensor J 2(A), J 3(B) Junction Connector R GR J 2(A), J 3(B) Junction Connector E2 Engine Coolant Temp. Sensor M1 Mass Air Flow Meter B–W B–L Y Y Y B BR Y BR W–B BR BR BR BR B B W–B O2 Oil Pressure SW (VVTL) P1 Power Steering Oil Pressure SW V5 VSV (Air Pump) B B C B B II2 16 6 ID2 7 ID2 Cruise Control ECU < 13–3> Combination Meter < 28–2> Airbag Sensor Assembly < 17–5> Stop Light SW < 9–2> TAIL Relay (USA) < 10–3> Combination SW (Canada)< 10–3> DEF I/UP Fuse < 25–3> W L–Y GR Y–G R–L B–W L–R THA II3 8 W–B 4 E2G BR PIM 2 VG W–B Lower Back Panel BI Right Kick Panel IG J7 Junction Connector A Ignition Coil and Igniter No. 1, No. 2, No. 3 and No. 4 < 1–3> < 1–4> B–Y Y B–L 1 B B B 1 1 3 1 D B D B 1 8 4 9 6 H A H A H A H A 5 1 3 2 F B F B 2 VC E2 +B II1 1 1 1 2 2 3 2 B A B A 8 ID2 9 ID2 L5 Canister Pump Module 3 II2 7 Y II3 9 II3 7 II2 17 II2 6 2 ID2 1 ID2 AIP VTA VC VPMP 34 C 21 A 18 A 25 A 8 B 21 D BR MPMP PPMP E2 THW THA 28 A 19 A 20 A 29 A 30 A 31 C EVG VG OSW PSW EC AIRV 30 B 28 B 4 D 16 B 17 B 32 C 27 B THE HP A/CS ACMG ACLD 5 C 10 D 33 C 21 B 9 B 7 C CF FAN IDLO THWO F/PS STP 14 C 14 D 19 C 12 D 13 D 11 A ELS ELS2 IGT4 IGF IGT3 IGT2 24 A 10 A 9 A 1 E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module COROLLA (EM00H0U) 2 B IGT1 OCI– OCI+ 8 A 13 A 14 A 2 C 2(B) Camshaft Timing Oil Control Valve (VVT) 1 B A R–B 8 7 6 5 R–B A (Cont. next page) 4 COROLLA (Cont' d) E n g in e C o n tro l (2 Z Z – G E ) Y M 257 E n g in e C o n tro l (2 Z Z – G E ) BAT D1 Skid Control ECU with Actuator < 15–4> BR P–B P–B P–B Skid Control ECU with Actuator < 15–4> Cruise Control ECU< 13–4> Airbag Sensor Assembly < 17–6> P–B P Transponder Key Computer < 5–3> L–R W–B W–B BR W (∗1) P–B W B (∗1) (∗1) BR (∗1) J 4(A), J 5(B) Junction Connector K1 Knock Sensor (Bank 1) (∗1) H 8(B) Heated Oxygen Sensor (Bank 1 Sensor 2) BR BR BR W–B BR BR BR BR BR II2 H5 Heated Oxygen Sensor (Bank 1 Sensor 1) BR B BR Behind the Combination Meter IE EB Left Side of the Cylinder Head BR P–B P L–R L–R L–R L–R W B V–W B R P B A J6 Junction Connector BR W–B L–R GR Airbag Sensor Assembly < 17–6> Occupant Classification ECU< 17–7> Data Link Connector 3 Skid Control ECU with Actuator < 15–4> Transponder Key Computer< 5–3> Combination Meter < 28–2> Combination Meter < 28–3> B R P B B B E W–B B B 3 B +B (∗1) W W W B A A 1 B 3 1 C 1(B) Camshaft Position Sensor J 2(A), J 3(B) Junction Connector C 3(B) Crankshaft Position Sensor A A E1 OX BR A A II3 +B 6 OX II2 9 HT II1 BR A A A A A B HT 1 A B 2 A B 4 (∗1) 21 4B 13 4B II2 10 16 4B COROLLA (EM00H0U) E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module 5 4C 2 4C 1 4C 4 4C A B 4 B 2 B 2 6 II2 18 (∗1) 15 D 2 B EOM EKNK KNK1 E1 1 B 5 A 23 C 7 D 20 D 19 D 15 C TC WFSE SIL IMI IMO SPD 27 C 26 C 17 C 3 C 26 A OX1B HT1B OX1A HT1A +B 22 B 6 B 1 D II2 4 3 4B 2 B TACH G2+ NE– NE+ 5 4B 4 4B 1 4B 2 4B A B 3 3B 3 4C 2 3B 4 3B 1 3B E A E A SG 5 15 1 B (∗1) B C R–B (∗1) 1 B 34 A 27 A L–R CG TS 4 12 13 7 TC WFSE 8 B B R–B A SIL 2 B 12 11 10 9 ∗ 1 : Shielded 16 M OVERALL ELECTRICAL WIRING DIAGRAM 258 4 COROLLA (Cont' d) 5 COROLLA P o w e r S o u rc e E n g in e Im m o b ilis e r S y s te m 1 4 3 2 ∗ 1 : w/ TVIP System ∗ 2 : w/o TVIP System Unlock Warning SW < 22–4> Data Link Connector 3 < 3–11> < 4–11> I10 Ignition SW 6 IM 15A AM2 10A ECU–B L–B L–R W B R–B B–W 3 IM B–R T10 2 12 1 IG +B 13 EFII EFIO Transponder Key Computer 3 9 D KSW 2 IA4 W B–R CODE TXCT 15 4 AGND 5 VC5 GND 16 14 IND CTY 8 7 R–W 2 2 3 B 4 1 VC5 1 B W–B (∗2) W–B 1 1A B 19 3A FL MAIN 2. 0L Door Courtesy SW Front LH < 11–3> T9 Transponder Key Amplifier Security Indicator < 19–3> 1 1 7 Security 30A MAIN 100A ALT 5 R–W AGND R–W (∗2) R–W (∗1) S 4(B) Security Indicator TXCT W–B Y CODE GR G 1 1 1C L COROLLA (EM00H0U) 1 IB B–W ST2 B R–B 1 IH IG2 6 Engine Control Module < 3–6> < 3–7> < 4–10> 5 AM2 11 3A W–B A Battery J7 Junction Connector Right Kick Panel IG M 259 P o w e r S o u rc e 1 ∗ 4 : w/ Fog Light ∗ 5 : w/ VSC, w/ ABS ∗ 6 : Except ∗5 ∗ 1 : USA ∗ 2 : w/ TVIP System ∗ 3 : w/ Wireless Door Lock H e a d lig h t 4 3 2 G(∗4) L–W R G–O (∗4) A18 Automatic Light Control Sensor 18 HIND DIM 13 5 DRL H–LP 1 6 R–Y R–B W–R R W–B R–W 5 3C 4 3C R R 4 IF 10 8 12 9 2 IG Tail T RF H EL HL Dimmer SW Light Control SW R–W W–B 1 E OFF Head HU ED C12 Combination SW 10 IH W–B 1 2 2 100A ALT 1 E HI 16 4 R R FOG 6 3C R (∗3) 12 3B R (∗2) Taillight System < 8–1> PKB 11 BRK Integration Relay< 18–8> TVIP ECU < 19–3> 1 1C 15A FOG 40A HEAD MAIN 10A DOME 1 2 10 H 13 2 D2 Daytime Running Light Relay CSE 7 22 3B 2 CSO G–O (∗4) 19 CSB R–W 10A GAUGE 1 1D 20 IG 12 W 1 W G (∗4) R L–W 1 P3 Parking Brake SW R–B TAIL D 1 R–W 14 T 1 IB 1 Skid Control ECU with Actuator (∗5)< 14–7> < 15–4> Combination Meter (∗6)< 28–8> 3 IG1 Relay 15 CHG– R 2 8 +B G–R (∗1) 5 B C 2 IE1 G–O (∗1) 1 3 IE1 G–Y (∗1) 1 IA Y 2 IF R–B 25A AM1 10A ECU–B 7 IC 3 W B–Y W R–B L–W COROLLA (EM00H0U) 12 IF 3 4 IL CLTE 4 1 IE1 I10 Ignition SW 20 4C 1 IH CLTS 1 G–W (∗1) 19 4C CLTB G–B (∗1) Generator < 2–2> IG1 2 G–Y (∗1) Taillight System< 8–1> L–W ACC 1 AM1 A EL Low High R–Y E Flash 3 IA4 1 1A 11 R–B F B W–R W–B W–B FL MAIN 2. 0L R W–B W–B Battery A IG J7 Junction Connector A Right Kick Panel A J6 Junction Connector W–B A A W–B Behind the Combination Meter IE W–B ED Front Left Suspension Tower G H I M OVERALL ELECTRICAL WIRING DIAGRAM 260 (Cont. next page) 6 COROLLA 6 COROLLA (Cont' d) H e a d lig h t A B C D F o g L ig h t 5 G(∗4) 8 7 6 L–W ∗ 4 : w/ Fog Light R R G–O (∗4) R R–B 1 1 R–B R 1 1 3 1 HEAD Relay 3 1 DIMMER Relay 5 1 2 R–B 1 1 2 R W–R R–Y R–B 1 2 1 G (∗4) COROLLA (EM00H0U) 1 1 10A HEAD LH UPR 5 10A HEAD RH UPR 2 1 1 G (∗4) R 1 1 1 1 R–W 1 R (∗4) R–Y (∗4) 2 2 9 IA5 R (∗4) R–Y (∗4) 1 W–B W–B H1 Headlight LH (High) 1 2 Fog Light SW W–B 1 IA4 R R–B 13 A 1 R–B R–B F 7 B R 1 3 1 H3 Headlight RH (High) R–Y 2 H4 Headlight RH (Low) H2 Headlight LH (Low) E 2 High Beam R R–W 2 R 1 5 FOG Relay 14 A 5 A HEAD (USA) 1 L–W 2 C 9(A), C16(B) Combination Meter R–Y 2 W–R 10A HEAD RH LWR 10A HEAD LH LWR 4 IA2 1 6 IA6 10 IA2 1 R–B BFG LFG OFF On G–O (∗4) I R W–B H 2 2 1 W–B W–B EA ED Front Left Suspension Tower Front Left Suspension Tower ED 1 W–B (∗4) Front Right Fender EA M 261 Front Right Fender F2 Front Fog Light RH R W–B (∗4) (∗4) 4 R W–B (∗4) (∗4) F1 Front Fog Light LH G C12 Combination SW W–R P o w e r S o u rc e T u rn S ig n a l a n d H a z a rd W a rn in g L ig h t 1 4 3 2 R–W G–W ∗ 1 : w/ Wireless Door Lock ∗ 2 : w/o Wireless Door Lock ∗ 3 : w/ TVIP System ACC B–Y 22 3B R–W IG1 2 W 1 AM1 8 IA5 15 3B 1 5 2 IG 3 +B IG LR LL GND 2 3 G–Y T2 Turn Signal Flasher Relay 4 EL 7 HAZ ER 5 8 6 4 IF Y–B(∗2) Y–B (∗1) 1 IB 1 IC 17 ID 11 IH 5 IH 13 IH 6 IG 12 IH 5 IG 2 3C 1 1D W W 1 5 1 1C C12 Combination SW 6 2 Integration Relay < 18–3> W–B RH 3 W–B B 4 LH C9 Combination Meter R11 Rear Combination Light RH 3 Turn 2 3 Turn 2 3 R9 Rear Combination Light LH 3 1 1A F4 Front Turn Signal Light RH F3 Front Turn Signal Light LH 1 LH RH 25 1 3C TR 17 4B 15 4B 21 3A 18 4B 21 4B 11 3A 4 2 W–B W–B W–B W–B FL MAIN 2. 0L W–B W–B W–B Battery W–B Front Left Suspension Tower W–B IE J6 Junction Connector W–B Behind the Combination Meter A W–B A A W–B ED EA Front Right Fender BI Lower Back Panel Y–B (∗1) G–Y G–B G–Y G–B G–Y G–B W–B 100A ALT 10A HAZARD 1 24 E TVIP ECU < 19–3> 2 7 TL H7 Hazard SW 12 ID Turn SW 8 IC 2 3 3C Y–B (∗3) 1 IK Y–B (∗1) 9 IL Y–B (∗1) G–O G–R G–Y G–B W–B G–B G–W COROLLA (EM00H0U) 2 25A AM1 1 10A GAUGE IG1 Relay 12 IF G–W 1 IA R–W W I10 Ignition SW 2 IF Right Kick Panel IG J7 Junction Connector M OVERALL ELECTRICAL WIRING DIAGRAM 262 7 COROLLA 8 COROLLA P o w e r S o u rc e T a illig h t 1 G–W (USA) 4 3 2 G–W (USA) 3 3 1 3 2 5 TAIL Relay G–W (Canada) 7 IH 2 ID J 8(A), J 9(B) Junction Connector 1 IB G G G G (USA) G 3 2 IC G 3 G–B (USA) 15A TAIL 2 IL B B B B TAIL D2 Daytime Running Light Relay C A A 15 A G G (Canada) C A G G G G 18 G G 1 1C G–W (USA) G–W (Canada) C A A J1 Junction Connector T W 13 2 1 L2 License Plate Light RH L1 License Plate Light LH 4 2 2 1 W–B W–B 2 A A W–B (Canada) A A J 8(A) Junction Connector A A 11 4B 18 4B W–B W–B W–B W–B W–B Battery R11 Rear Combination Light RH W–B (USA) B FL MAIN 2. 0L 4 Tail 10 2 1 R9 Rear Combination Light LH C12 Combination SW (Canada) 1 1A 2 1 Tail TAIL Tail Head 1 F4 Front Parking Light RH OFF 1 F3 Front Parking Light LH T C9 Combination Meter (Canada) 1 E Light Control SW 100A ALT COROLLA (EM00H0U) 14 21 4B W–B (USA) A IE W–B Front Left Suspension Tower ED W–B EA Front Right Fender Lower Back Panel BI BH Under the Left Quarter Pillar M 263 Behind the Combination Meter J6 Junction Connector R–W G–W R–W G–W G–W G–W G–W (∗1) G–W W–B (LED Type) W–B Under the Left Quarter Pillar H 9(B) High Mounted Stop Light W–B (Bulb Type) Engine Control Module < 3–7> < 4–7> Shift Lock Control ECU < 21–4> Cruise Control ECU < 13–4> W–B W–B A A B J 8(A) Junction Connector A A H 9(A) High Mounted Stop Light Stop R9 Rear Combination Light LH Stop R11 Rear Combination Light RH 2 A G–W (LED Type) G–W (Bulb Type) G–W G–W G–W G–W A A FL MAIN 2. 0L BH BI Lower Back Panel 4 4 W–B Battery 1 A 100A ALT 2 B 1 1 B 2 2 2 G–W 13 3C C B C B 14 IC B A Skid Control ECU with Actuator< 14–7> < 15–4> W 1 1A Junction Connector 12 3C COROLLA (EM00H0U) 1 IB 10 3C 11 3C 1 1C J 8(A), J 9(B) 7 ID 5 IC B A 1 IL 15A STOP S to p L ig h t P o w e r S o u rc e 4 3 2 1 ∗ 1 : w/ VSC, w/ ABS 2 S9 Stop Light SW 1 M OVERALL ELECTRICAL WIRING DIAGRAM 264 9 COROLLA Memo COROLLA (EM00H0U) 265 P o w e r S o u rc e ∗ ∗ ∗ ∗ Illu m in a tio n 1 1 2 3 4 : USA : Canada : w/ Stereo Component Amplifier : w/o Stereo Component Amplifier 4 3 2 L–W R–W E Light Control SW Tail G–W (∗2) ACC C12 Combination SW Clock < 24–2> Head IG1 2 10 G G (∗2) Engine Control Module< 3–7> < 4–6> G G G G G G C G G G G G (∗4) 4 B5 Blower SW 3 8 H7 Hazard SW 5 3 W–B W–B W–B W–B (∗4) W–B W–B (∗3) 3 2 IG 5 1 R5 Rear Window Defogger SW W–B 5 B 10 A8 A/C SW 7 R 3(A), R 4(B) Radio and Player T8 Traction Off SW 12 5 2 R19 Radio and Player ILL– W–B 5 10 A 2 G (∗1) 1 F7 Front Passenger Seat Belt Warning Light TAIL Relay 1 IA 1 2 3 10A GAUGE 1 1A Taillight System < 8–1> IG1 Relay 100A ALT 15A DOME 2 IF 4 ILL+ 5 3 W–B 14 3A B FL MAIN 2. 0L 11 3A 4 IF W–B Behind the Combination Meter W–B J6 Junction Connector Battery G G (∗3) G G (∗1) 3 2 1 1D 2 1 G G G–W (∗1) R–W W B–Y 1 3 W W 1 1C 2 G G–W (∗1) 25A AM1 15A TAIL L–W COROLLA (EM00H0U) 3 1 IB 1 G 12 IF 7 IH 7 IC G W G–W (∗1) L–W 13 G–W (∗2) I10 Ignition SW 4 IL B T OFF 1 AM1 A A IE A IG J7 Junction Connector Right Kick Panel W–B W–B W–B W–B W–B D M OVERALL ELECTRICAL WIRING DIAGRAM 266 (Cont. next page) 10 COROLLA 10 COROLLA (Cont' d) Illu m in a tio n 5 A B 8 7 6 L–W R–W R–W L–W L–W 22 3B 19 4C 20 4C 16 3B G G G 4 A 5 A Illumination G C 9(A), C16(B) Combination Meter G G 3 1 2 TAIL TAIL CANCEL 2 A GND LAMP 1 3 9 B W–B W–B W–R B W–B W–R W–B W–B 28 A METER 5 8 W–B W–B D R7 Rheostat C6 Cigarette Lighter Illumination 1 A10 A/T Shift Lever Illumination COROLLA (EM00H0U) 2 L–W R–W C W–B W–B 18 4B 19 4B 21 4B W–B J6 Junction Connector IE M 267 Behind the Combination Meter A P o w e r S o u rc e In te rio r L ig h t 1 4 3 2 ∗ 1 : w/ Moon Roof ∗ 2 : w/ TVIP System W ACC 1 AM1 IG1 2 B–Y 1 5 2 3 10A GAUGE 1 IA IG1 Relay W I10 Ignition SW 2 IF 12 IF 25A DOOR B Integration Relay IG DCTY GND 9 P–DR 5 6 A B 1 IB C W W 7 IC 4 IF 1 IE 10 IH 3 IL 4 IK 4 IL 6 IE 4 ID 4 IE L–W L–W R R–Y L–W R R–W W–B 1 2 1 ID R–W 1 1C L–W 1 1D 2 2 20 R–W ON OFF 1 A B J10 Junction Connector DOOR 3 2 I13 Interior Light 19 4C L–W C9 Combination Meter L3 Luggage Compartment Light 20 4C Door TVIP ECU < 19–4> A R–W (∗2) TVIP ECU < 19–4> A R–W D4 Door Courtesy SW Front LH Transponder Key Computer< 5–4> W–B 1 1 1A 1 L–W R–W R–W R–W (∗2) R (∗2) 17 1 W–B 1 15A DOME 100A ALT COROLLA (EM00H0U) 25A AM1 I11(A) 10 1 5 FL MAIN 2. 0L 1 W–B L–W A Battery Behind the Combination Meter IE L4 Luggage Compartment Light SW A J6 J7 Junction Connector Junction Connector IG Right Kick Panel W–B W–B(∗1) D M OVERALL ELECTRICAL WIRING DIAGRAM 268 (Cont. next page) 11 COROLLA 11 COROLLA (Cont' d) In te rio r L ig h t 5 8 7 6 ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ 1 2 3 4 5 6 7 8 9 : w/ Moon Roof : w/ TVIP System : w/o Moon Roof : w/ Door Lock Control : w/o Door Lock Control : w/ Automatic Glare–Resistant EC Mirror : w/o Automatic Glare–Resistant EC Mirror : w/ Stereo Component Amplifier : w/o Stereo Component Amplifier I11(A) Integration Relay LP PCTY 3 A 13 A A 15 ID 3 IK R–W (∗4) 3 IL3 R–W (∗4 ∗8) R–W (∗2) (∗6) 9 4B 7 4B R–W (∗5) R–W (∗5) TVIP ECU < 19–3> (∗6) (∗7) R–Y (∗7) (∗6) R–B (∗6) (∗7) I12 Personal Light (∗7) M2 Personal Light 3 3 IK1 B (∗3 ∗7) 10 4B 1 6 1 1 1 D5 Door Courtesy SW Front RH D7 Door Courtesy SW Rear RH IE M 269 Behind the Combination Meter R–W (∗5) D6 Door Courtesy SW Rear LH W–B (∗3 ∗6) W–B(∗1) B (∗3 ∗7) B (∗3 ∗6) 4 IK1 D 3 IG R–W (∗5) B (∗3) 1 R–W (∗4 ∗8) 14 ID R–W (∗4 ∗9) 3 IE R–W B (∗3 ∗7) B C B (∗1) COROLLA (EM00H0U) LP2 12 A P o w e r S o u rc e E le c tro n ic a lly C o n tro lle d T ra n s m is s io n 1 4 3 2 R–W A R–W R–W ACC 1 AM1 20 3B IG1 2 B–Y W B–W B W 3 5 1 3 2 3 EA1 II1 1 3 IM B–R 8 IK 4 IF 8 D 10 IH MREL B–R W W R–W +B ODLP SLT+ 7 C 13 B 4 B 3 B VTA2 M– SLT– 12 B M+ 18 A 17 B VC GE01 17 C SPD S1 SL S2 11 B 10 B 9 B 19 C STP L L–W R–Y P R–W LG 1 1 4 3 2 6 SLT+ SLT– S1 SL S2 B Y W GR G 1 4B B B 3 6 9 EA1 II1 W–B LG FL MAIN 2. 0L 31 A 3 4B 2 B 1 1A B 1 VTA1 32 O/D OFF C9 Combination Meter 1 W–B 30A MAIN 100A ALT 20A EFI 1 15A EFI2 2 2 21 A E2 1 B–O 2 28 A E 3(A), E 4(B), E 5(C), E 6(D) 1 1 1 1C BATT Engine Control Module 1 D 1 1D 3 D B W–B W–B 2 IA4 1 1 IA2 R–W B–W 1 3 R–W 2 1 EFI Relay 5 10A GAUGE 1 1 2 IG IG1 Relay 15A AM2 25A AM1 1 IA 5 IL 1 IB R–W COROLLA (EM00H0U) 2 IF B–W B–W I10 Ignition SW Engine Control System < 3–7> < 3–8> < 3–10> R–W IG2 6 ST2 6 IM 12 IF R–W 5 AM2 22 3B B E1 Electronically Controlled Transmission Solenoid A Behind the Combination Meter IE W–B Battery J6 Junction Connector Front Left Suspension Tower ED W–B B M OVERALL ELECTRICAL WIRING DIAGRAM 270 (Cont. next page) 12 COROLLA 12 COROLLA (Cont' d) E le c tro n ic a lly C o n tro lle d T ra n s m is s io n A 5 R–W B a c k – U p L ig h t 7 6 8 R–W R–W (A/T) 14 II2 R–W A2 A/T Shift Lever Position SW Back–Up Light SW 2 J4 Junction Connector L–R Integration Relay< 18–8> B RB J1 Junction Connector D D B RL NL DL 2L LL 6 1 9 7 3 8 4 II1 LG–B LG 7 EA1 L L–W R–B (A/T) L–R 2 EA1 5 II1 R–W (M/T) D PL 2 2 II1 LG–B LG L L–W L–R Skid Control ECU with Actuator< 14–7> < 15–3> 1 L–W R–B (M/T) R–B (A/T) 9 C 8 C 2 L R–B COROLLA (EM00H0U) B1 Back–Up Light SW L–R C 13 J10 Junction Connector C II2 C E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module E02 E01 7 A 6 A E04 7 B E1 R D 5 A 11 C 10 C R10 Rear Combination Light LH 2 W–B 6 ID W–B 9 IK Back–Up R12 Rear Combination Light RH Back–Up 17 3A 2 L Combination Meter< 28–5> W–B A A B B 1 R–B A A R–B C A J 4(A) Junction Connector C A J 4(A), J 5(B) Junction Connector W–B A10 O/D Main SW 4 18 3C II1 R–B (2ZZ–GE) 2 1 1 L R–B BR W–B W–B W–B W–B W–B W–B LG–B 20 3C R–B E03 6 B R–B ME01 2 B R–B EC 35 B L ODMS 29 C 10 IK A B BR W–B W–B W–B W–B W–B W–B J 8(A), J 9(B) Junction Connector R–B W–B A B 11 3A A A B W–B A W–B IG J7 Junction Connector EC Left Side of the Cylinder Head EB Left side of the Cylinder Head Lower Back Panel BI Under the Left Quarter Pillar BH M 271 Right Kick Panel A W–B A C ru is e C o n tro l (2 Z Z – G E ) P o w e r S o u rc e 1 4 3 2 W ACC IG1 2 10 IH 4 IF 9 IF 2 IG 19 3B 6 3B 8 IK 3 IDL +B D 4 PI 11 MC 7 GND 16 W–B G–O 13 IA5 7 IA5 2 R–W 2 CRUISE 1 4 R–Y RES/ ACC S9 Stop Light SW 1 2 3 R–G C13 Cruise Control Clutch SW 2 23 CCS ECC 1 2 R–L Spiral Cable 3 CRUISE C9 Combination Meter 30A MAIN 4 IA5 G–O B–R 2 1 L 8 R–G R–L G–Y G–R W 32 12 IA5 3 100A ALT SPD Stop Light System< 9–2> 1 2 12 TC MO 15 2 IA4 1 1C 10 STP– CCS 5 L B–W R–W B–O B–R 2 V–W 5 3B P–B C14 Cruise Control ECU 13 22 3B W–B 1 1D G–W B–W R–W W–B 15A AM2 3 IM Data Link Connector 3 < 4–11> 3 2 W–B 1 IB W COROLLA (EM00H0U) 25A AM1 10A ECU–IG L–W 5 IL Stop Light SW < 9–3> Ignition SW 10A GAUGE Engine Control Module< 4–7> 5 B–W B W ST2 6 IM 1 IA 1 IG2 6 I10 12 IF 2 IF IG1 Relay 5 AM2 B–Y Combination Meter < 28–3> 1 AM1 W 3 MC MO L W–B 1 W–B M W–B W–B L SET/ COAST G–R 1 1A B 6 IA5 CANCEL 12 4B GND L FL MAIN 2. 0L C10 Combination SW 4 3 IA5 W–B C4 Cruise Control Actuator 21 4B W–B W–B A J7 Junction Connector Battery A W–B IG Right Kick Panel J6 Junction Connector A Behind the Combination Meter IE M OVERALL ELECTRICAL WIRING DIAGRAM 272 13 COROLLA Memo COROLLA (EM00H0U) 273 A B S (w / V S C ), T R A C , V S C a n d T ire P re s s u re W a rn in g S y s te m (w / V S C ) P o w e r S o u rc e 1 4 3 2 B B A B ACC 5 AM2 B R–W R–W W B–Y 5 4 A C 9(A), C16(B) 32 A Combination Meter 10A GAUGE 3 VSC Slip Brake 10A ECU–IG B–R 50A ABS NO. 2 30A ABS NO. 1 2 IA4 ABS R–B Tire Pressure 2 1 1C 4 IF 13 IC 9 IF 1 A 29 A 37 A 36 A 35 A 2 B 3 B V W R W–R LG BR B–W B–W 1 1 2 8 IK B–O 1 1 IH B–R 1 1D 3 IM W 1 2 16 3B 2 IG R–W 1 IA 10A ECU–B 15A AM2 25A AM1 1 1 W B B COROLLA (EM00H0U) 2 IF IG1 Relay 2 5 IL 6 IM I10 Ignition SW 1 IB 22 3B IG2 6 ST2 12 IF B–W IG1 2 B–W 1 AM1 W 2 6 3B B–W B–W B W–B J3 Junction Connector 1 1A 13 IA7 2 IA7 V W C 16 IA5 Combination Meter System < 28–7> 5 IA6 R 1 14 IA5 LG 1 5 3B BR 2 EB1 II2 W–R 30A MAIN 100A ALT 5 W R W–R C LG B–W FL MAIN 2. 0L B–W R–B Battery W–B A J6 Junction Connector Behind the Combination Meter W–B BR IE A EB Left Side of the Cylinder Head C D E F G H I J K M OVERALL ELECTRICAL WIRING DIAGRAM 274 (Cont. next page) 14 COROLLA 14 COROLLA (Cont' d) M u ltip le x C o m m u n ic a tio n S y s te m (C A N ) A B S (w / V S C ), T R A C , V S C a n d T ire P re s s u re W a rn in g S y s te m (w / V S C ) 5 A B B B–W B CSW SP1 43 A 12 A 4 IB1 W RR+ S 1(A) Skid Control ECU with Actuator 19 A RR– STP 27 A P CANL 40 A 11 A B W Data Link Connector 3< 3–12> 18 IA7 3 IA7 B B W J11 Junction Connector 6 7 IA7 W A/T Shift Lever Position SW< 12–6> Stop Light SW < 9–2> Combination Meter < 28–3> E E B B E E B B B B W W–B W Combination Meter < 28–4> W–B W–B W–B Daytime Running Light Relay < 6–4> T8 Traction Off SW R–Y R 9 CANH 25 A L–R G–W W–G R–Y 5 IA5 R–W Engine Control Module < 3–9> < 3–10> TSI 7 A R 15 IA5 5 A RL– W PKB 28 A 6 A RL+ R–W R–Y L B–W W T7 Tire Pressure Warning Standardization SW V–W 5 NEO 10 A R 23 A 20 A FR– R 9 A 17 A FR+ Y TRC– ENG+ ENG– 22 A 3 A FL– 3 IB1 2 BD1 22 3A 14 4B W–R LG W–B 11 3A 21 4B B–W B–W B–W W–B B W W–B B–W B W W–B R–B R–B B–W K R–W V–W B–W W–B J 2 B–W I V6 VSC Warning Buzzer H W TRC+ 8 A 4 A FL+ 1 BD1 Y INIT 41 A 18 A D/G 10 IA5 4 EB1 Y–B F V 13 A TS 2 IB1 B IG1 46 A 24 A B WFSE 1 G W 42 A 8 R B GND2 1 A W–L W–B B–O LG W–R R W V 15 IA7 E G GND1 32 A +BS 2 BC1 1 IB1 L–R BZ 30 A 31 A GR WTIR 26 A MR P WA 29 A 15 A BM B BRL L 2 A MRF 44 A R 2 B–R B R COROLLA (EM00H0U) IND 1 BC1 4 IA6 3 EB1 14 A 2 A20 ABS Speed Sensor Rear RH W 11 IA6 L–R 2 14 IA7 R 34 A 2 1 EB1 2 R+ 2 1 B 1 2 1 W 3 L–R 2 GR 1 5 P 3 45 A D 1 B 2 ABS MTR Relay ABS MTR CUT Relay 5 2 VSCW 1 2 A19 ABS Speed Sensor Rear LH 2 A4 ABS Speed Sensor Front RH 2 B–W 36 A Data Link Connector 3 < 3–10> < 3–12> L A3 ABS Speed Sensor Front LH 2 C 8 7 6 B W–B A J7 Junction Connector EA Right Kick Panel 1 2 BAT IG1 ESS 9 10 CANL CANH 5 1 IG GND 2 3 CANL CANH IG S12 Steering Sensor Y1 Yaw Rate Sensor M 275 Front Right Fender 3 A B S (w /o V S C ) a n d T ire P re s s u re W a rn in g S y s te m (w /o V S C ) P o w e r S o u rc e 1 4 3 2 ACC 2 3 6 IM 12 IF R–W L–R FL– 9 B FR– 39 B PKB RL+ 15 B RL– 16 B 14 B 18 B STP SP1 RR– 45 B W 2 IB1 RR+ 44 B R Y B W B 3 IB1 4 IB1 B W 1 1 2 1 A20 ABS Speed Sensor Rear RH Front Right Fender 2 BD1 W EA R W–B 1 BD1 B W–R Y 21 4B 2 BC1 A19 ABS Speed Sensor Rear LH LG 1 BC1 W 14 4B B 1 2 A4 ABS Speed Sensor Front RH A3 ABS Speed Sensor Front LH Behind the Combination Meter FR+ 40 B G R W–B IE J6 Junction Connector 23 B D/G W–G FL+ 10 B W–B C9 Combination Meter T7 Tire Pressure Warning Standardization SW W–B BR EB A 13 B G–W 1 B 5 IA6 W–R V–W J3 Junction Connector A R–W TC L–R 21 B TS C Battery P–B 20 B +BM GND2 GND1 32 B W–B W–R 10 IA5 5 29 31 B 2 1 37 WA 17 B 8 C Left Side of the Cylinder Head V–W BR +BS 1 IB1 LG B 5 II2 BR 2 B 15 IA5 36 35 Brake ABS 1 1A TSI GR INIT 41 B LG 1 FL MAIN 2. 0L P–B GR WTIR 33 B 14 IA5 Tire Pressure 1 32 34 B R 100A ALT 30A MAIN 4 N 4 IA6 S 1(B) B–O R–W W–B 1 2 36 B P 12 IA6 Skid Control ECU with Actuator 1 2 6 B IG1 L B–R 16 3B 46 B 11 IA6 R Combination Meter System< 28–7> 22 3B BRL R 43 B L–W B–O R–W 2 IA4 L–R 8 IK 5 IA5 B–W 2 IG R 4 IF 1 1C 30A ABS NO. 1 40A ABS NO. 2 1 1 1D B–R 1 2 W W R 1 2 Stop Light SW < 9–2> R 10A GAUGE 15A AM2 25A AM1 3 IM 16 IA5 L COROLLA (EM00H0U) 1 IB Combination Meter < 28–3> I10 Ignition SW Daytime Running Light Relay< 6–4> 5 IG1 Relay Data Link Connector 3 < 3–10> < 3–11> < 3–12> < 4–10> < 4–11> < 4–12> ST2 13 IC A/T Shift Lever Position SW< 12–6> 1 IG2 6 5 AM2 5 IL 10A ECU–IG 1 IA Combination Meter < 28–4> B–W B 2 IF B–W B–Y B–W IG1 2 W 1 AM1 W 2 M OVERALL ELECTRICAL WIRING DIAGRAM 276 15 COROLLA 16 COROLLA P o w e r S o u rc e A u to m a tic G la re – R e s is ta n t E C M irro r w ith C o m p a s s W ip e r a n d W a s h e r 1 4 3 2 ACC 1 AM1 IG1 2 W +B +2 +1 +S B1 INT1 INT2 EW W MIST Wiper SW W B–Y I10 Ignition SW 12 IF B–L HI Off B–L 10A GAUGE 3 IG1 Relay 2 1 IB On Wiper Relay 7 W W +2 +1 +S 4 8 9 7 6 7 IA2 C11 Combination SW Inner Mirror 5 W–B 8 IA2 I12 EW L–W 9 IA2 L–W L–R 2 +B L 1 1C W L–Y 15A WASHER 25A WIPER 1 1D 6 6 IA2 L–Y 11 IC 7 IL 1 9 IC M 1 2 L L 1 1A B 4 IF F5 Front Washer Motor 100A ALT COROLLA (EM00H0U) 5 LO 5 IE 1 IA 1 INT Washer SW 25A AM1 2 IF OFF L 4 IK1 L–W L–W L–R B L 2 4 1 3 B +2 +1 S W–B A Battery IE A J6 Junction Connector Behind the Combination Meter W–B M W–B ED 5 E F6 Front Wiper Motor J6 Junction Connector Behind the Combination Meter IE Behind the Combination Meter IE M 277 Front Left Suspension Tower W–B FL MAIN 2. 0L P o w e r S o u rc e SRS 1 ∗ 1 : w/ Side Airbag 4 3 2 R–B B–W A5 Airbag Sensor Front LH S7 Side Airbag Squib RH 1 1 S10 Side Airbag Sensor LH S11 Side Airbag Sensor RH B–W S6 Side Airbag Squib LH A6 Airbag Sensor Front RH 5 AM2 B 2 2 +SL BBR+ 4 –SR 2 1 BR–W B–W BR 4 IA1 8 C 28 B 30 B BBP+ +SL BR–W BBP– 2 IA1 B–W 11 C BBD+ 1 IA1 BR 8 A 3 IA1 W–R S14 Side Airbag Sensor Rear RH BBD– +SR 1 2 S13 15 A –SL 2 BCR– BCR+ Side Airbag Sensor Rear LH SFP– 3 W–R 1 1 P (∗1) 2 BCL+ 2 LG (∗1) 6 C 1 BCL– BCR– BCR+ BBR– GR–L (∗1) SFP+ 4 LG–B (∗1) 7 C SFD– BBL+ 3 P (∗1) 10 A SFD+ BBL– 1 GR (∗1) 15A AM2 10A ECU–B 27 B 29 B –SL –SR +SR A12(A), A13(B), A14(C) Airbag Sensor Assembly B–R DSP+ 14 A DSP– 13 A DBE+ 11 A DBE– 12 A D+ D– 5 B 6 B D2+ 8 B D2– 7 B P+ P– 4 B 3 B P2+ 1 B P2– 2 B PD+ 2 A PD– 1 A PP+ 4 C PP– 5 C 2 IA4 Y Y–B Y Y–B Y–P Y–GR Y–G Y–R Y–O Y–V Y Y–B R G R–B 1 1C G–W B–R W 1 2 2 30A MAIN 100A ALT COROLLA (EM00H0U) 9 A 3 IM BCL+ 2 P–L (∗1) I10 Ignition SW 1 IB BCL– LG–B (∗1) Y–G (∗1) 6 IM Y–R (∗1) Y–R (∗1) Y–G (∗1) R–B 1 IH IG2 6 ST2 3 4 1 2 2 4 2 1 D+ 2 D– Buckle SW B FL MAIN 2. 0L Battery 1 B6 Buckle SW LH Seat Position Sensor 2 P+ Seat Position Airbag Sensor 1 1A 3 Spiral Cable 1 1 1 A16 Airbag Squib (Steering Wheel Pad) 1 D2+ D2– 3 P– A15 Airbag Squib (Front Passenger Airbag Assembly) 4 P2+ 1 2 1 2 P2– P12 Pretensioner LH P13 Pretensioner RH A B M OVERALL ELECTRICAL WIRING DIAGRAM 278 (Cont. next page) 17 COROLLA 17 COROLLA (Cont' d) ∗ 1 : w/ Side Airbag ∗ 2 : w/ Side Airbag and/or Stereo Component Amplifier ∗ 3 : w/o Side Airbag and Stereo Component Amplifier SRS A B 5 R–B B–W B–W Front Passenger Airbag ON–OFF Indicator Light 2 SGD1 12 B SVC2 3 O 1 B SGD2 L W SIG1 DIA GND 2 A SVC3 3 A 5 B SIG3 9 B 8 B SIG2 2 B SGD2 SIG4 10 B SGD4 4 B B BR 2 SIG3 SVC4 6 B V 1 SVC3 SGD3 3 B W Y 1 IJ B–Y L–R P–B Y B7 Buckle SW RH 5 IJ BR 4 IJ B–Y 6 IJ 7 B SIG2 1 1 2 SGD3 SVC4 SIG4 SGD4 1 1 4 IF SVC1 SVC2 II 39 10 IH 11 B GR 5 +B BR II 1 A IG L–R 2 BSW 9 A B II BGND 5 A B–R 1 7 A 3 O 3(A), O 4(B) Occupant Classification ECU SRS II LA 14 B B–Y 7 PBEW 13 B L–W II L–R 3 SIL 16 B P–B II TC 15 B Y W–B W–B 10 GSW2 22 B FSR– SGD1 G E1 25 B 4 A 2 SB E2 FSR+ SIG1 1 R 32 SVC1 R–B IG2 B–W 8 A 21 B FSP+ A12(A), A13(B), A14(C) Airbag Sensor Assembly 26 B L–W L 12 C C9 Combination Meter FSP– O6 Occupant Classification Sensor Front RH 2 IM1 (∗2) 2 IG1 (∗3) 8 IK B–O 13 C P–AB II B–O PAON L 17 B 23 B ICD– 8 6 L–W 6 A ICD+ 3 IG1 P 7 A 3 IM1 O5 Occupant Classification Sensor Front LH P–AB GR ICP– LG–B (∗1) 10 C ICP+ 3 P–L (∗1) L–Y (∗1) GR (∗1) COROLLA (EM00H0U) 9 C 2 5 IL R–B 1 2 B–W F7 Front Passenger Seat Belt Warning Light C17 Curtain Shield Airbag Squib LH PAON 1 B–W B–W C18 Curtain Shield Airbag Squib RH 8 7 6 2 4 IM1 4 IG1 7 IM1 (∗2) 7 IG1 (∗3) Occupant Classification Sensor Rear LH 3 O8 Occupant Classification Sensor Rear RH II2 BR Data Link Connector 3 < 3–11> < 4–11> C BR O7 BR L–R 15 II2 BR Combination Meter< 22–3> Data Link Connector 3 < 3–10> < 3–11> < 4–11> W–B W–B Engine Control Module < 3–7> < 4–7> 5 3 J3 Junction Connector C C Right Kick Panel IG J7 Junction Connector A IE BR A J6 Junction Connector Left Side of Cylinder Head EB M 279 Behind the Combination Meter P o w e r S o u rc e ∗ 1 : w/ Power Window ∗ 2 : w/o Power Window ∗ 3 : w/ TVIP System D o o r L o c k C o n tro l 1 4 3 2 L–Y B–Y 1 AM1 IG1 2 L1 UL1 9 A 9 6 A ACTD 1 A R 17 4A R Turn Signal Flasher Relay< 7–4> 18 4A L C W L–Y G W(∗3) L–Y(∗3) G(∗3) L L–W L L–W 4 IF 21 4A B W 20 4A L–Y 19 4A G 22 4A W 6 IC2 9 IC2 8 IJ3 7 IC2 10 IC2 12 IC1 11 IC1 9 IJ3 1 1C L R W 5 10 8 1 Detection Unlock 3 W–B W–B 3 B (∗2) 9 Lock Lock D10(B), D11(A) Door Lock Control SW Front LH Unlock Lock 100A ALT 15A DOME 3 A (∗1) L–Y G 6 TVIP ECU < 19–4> 5 B (∗2) D12 Door Lock Control SW Front RH Unlock 8 A (∗1) 6 B L 5 A 2 1 L–W L L–W 1 2 LSWD 19 A W L 10A GAUGE 10 IH UL3 25 A G 8 IC2 1 1D 1 HAZ 8 A 25A DOOR 25A AM1 W L–W COROLLA (EM00H0U) 1 IB 3 GND L–Y 5 1 Y–B 1 10 L–W 1 IA 2 7 IC B IG 2 IF IG1 Relay W L–Y I10 Ignition SW 12 IF 13 ID I11(A) Integration Relay W ACC A 4 M D8 7 W–B W–B W–B Door Key Lock and Unlock SW Front LH Door Lock Motor Front LH Door Unlock Detection SW Front LH W–B 1 1A W–B W–B B W–B FL MAIN 2. 0L 7 IC1 W–B Battery A A J6 Junction Connector IE Behind the Combination Meter D E M OVERALL ELECTRICAL WIRING DIAGRAM 280 (Cont. next page) 18 COROLLA 18 COROLLA (Cont' d) D o o r L o c k C o n tro l 5 A W ire le s s D o o r L o c k C o n tro l 8 7 6 L–Y I11(A) Integration Relay L2 UL2 7 A LSWP 5 A 18 A ACT– ACT+ 3 2 5 IK 2 IK BKL LSR 21 A 17 A TVSS 26 A HRLY 11 A HORN 10 A P 20 A L–R (∗7) 8 IJ 8 ID 10 ID L–B HORN Relay < 24–4> 1 IA6 L–R (∗7) G–Y (∗3) G–Y 3 PRG L–Y L–R 2 RDA Unlock Warning SW < 22–4> A/T Shift Lever Position SW< 12–6> 5 BA1 4 BA1 G–W (∗7) 5 +B 6 M A B J 8(A), J 9(B) 9 W–B (∗7) D15 Door Lock Motor Rear LH Door Unlock Detection SW Rear LH 9 W–B 4 Junction Connector A A A A W–B (∗7) 3 BA1 W–B W–B (∗7) W–B (∗6 ∗7) W–B(∗5 ∗7) D3 Door Control Receiver 1 Detection M D16 Door Lock Motor Rear RH Door Unlock Detection SW Rear RH 1 W–B (∗7) W–B Right Kick Panel 8 G–W (∗7) 6 Detection W–B A PRG 7 GND 10 BA1 R 4 4 BB1 (∗6) 4 BG1 (∗5) G–W (∗7) 1 L W–B W–B(∗5 ∗7) J7 Junction Connector IG 5 BG1 3 BG1 (∗5) 3 BB1 (∗6) W–B(∗6 ∗7) A 5 BB1 10 BG1 R Detection Unlock Lock D9 Door Key Lock and Unlock SW Front RH Door Lock Motor Front RH Door Unlock Detection SW Front RH 4 M 10 BB1 L 1 5 IJ1 A 9 IJ1 R W–R L–B G 7 8 W–B 10 IJ1 10 IJ3 5 W–B 7 IL3 G–W (∗5 ∗7) L 7 IJ3 6 1 IL3 L(∗5) W–R L–B G 6 IJ3 Daytime Running Light Relay< 6–3> Buckle SW LH< 22–3> L L (∗6) R (∗6) R(∗5) E 10 ID2 L 2 IL3 D R L R W–R L–B L(∗5) G–W (∗7) 7 4A G–W (∗5 ∗7) 5 4A R(∗5) G–W (∗6 ∗7) 8 4A L R (∗4) 9 4A TVIP ECU< 19–4> 4 4A W (∗3) 10 4A G–Y L R 1 4A C 6 4A RDA 4 9 ID L–B (∗3) 3 4A G COROLLA (EM00H0U) W–R (∗3) 2 4A 20 ID G–W (∗7) G W–R L–B G B TVIP ECU < 19–4> KSW 8 IL3 W–B (∗5 ∗7) 3 4 5 6 7 : w/ TVIP System : w/ Wireless Door Lock : w/ Stereo Component Amplifier : w/o Stereo Component Amplifier : A/T Under the Left Quarter Pillar BH M 281 ∗ ∗ ∗ ∗ ∗ P o w e r S o u rc e Door Key Lock and Unlock SW Front RH< 18–5> W–R L–B R–W R–W R L–Y R–W Luggage Compartment Light SW< 11–4> Door Courtesy SW Front LH, Front RH Rear LH and Rear RH < 11–2> < 11–3> Door Key Lock and Unlock SW Front LH < 18–3> Unlock Warning SW < 22–4> W–B A G L–B W–B 19 3A Transponder Key Computer< 5–4> 2 A W R–W R–W R–W IG W B–R Y–B R–W 11 3A Security W–B J7 Junction Connector A Door Unlock Detection SW Front LH< 18–3> Integration Relay < 11–8> < 18–3> < 18–7> Starter Cut Relay < 1–1> R W–B (Shielded) W B Microphone 11 ID2 W–B 5 G–Y W–B 2 COROLLA (EM00H0U) 1 1A W–B J6 Junction Connector R–B GMIC 1 A 4 A 3 A FL MAIN 2. 0L L MIC 4 G3 Glass Breakage Sensor ECU R–B B–W GND 1 B–W B–W W–B 6 IOUT Turn Signal Flasher Relay < 7–4> IG1 Relay W–B W 3 S+B DSWL 35 W 1 W–B DSWD 40 CTY UL3 L2 19 17 16 12 T3 TVIP ECU 25 Right Kick Panel Behind the Combination Meter IE 8 TRIG 100A ALT 6 KSW IND E IOUT LSWP LSWD UL2 37 IRSG DMLP IG 5 2 10 B–W 29 11 38 18 28 9 SRLY 21 8 HAZD 1 IB +B1 HEAD 9 IF 10 IH 4 IF HORN Relay < 24–4> W R–B 3 2 Daytime Running Light Relay < 6–3> W 5 S 4(A) Security Indicator A Battery 1 W–B 1 1C 1 1D R–B ACC HORN 25A AM1 10A ECU–B 1 IA R–B R–B 4 3 2 1 10A ECU–IG 12 IF 1 IH 2 IF I10 Ignition SW B–Y IG1 2 1 AM1 W T V IP S y s te m M OVERALL ELECTRICAL WIRING DIAGRAM 282 19 COROLLA 20 COROLLA P o w e r S o u rc e P o w e r W in d o w 1 4 3 2 W ∗ 1 : w/ Stereo Component Amplifier ∗ 2 : w/o Stereo Component Amplifier W 12 IF B B ACC W 1 AM1 1 IB IG1 2 25A AM1 6 7 B B Normal Lock Window Lock SW 2 Rear RH 8 IC1 B 3 Rear LH 1 B 1 30A POWER 5 IG1 Relay 2 IF Down 2 IC3 2 E 3 DU PU DD 4 9 PD 18 16 5 IC3 R R–B 6 IC3 RRD 10 L 7 IC3 RRU 13 R–L 1 IC3 RLD 12 B–W B–R 5 RLU 15 G Y W–B W–B 1 2 B 1 1D B 10A GAUGE W W 1 1C E 1 100A ALT 4 IC3 3 IC3 P/W Relay B(∗1) B(∗2) B(∗2) 4 IL3 6 IL3 Down U D 3 1 G 4 SD Y M R R–B 5 P10 Power Window Motor Rear LH 2 SU Up 1 P7 Power Window Control SW Rear RH D G 5 U 3 7 BB1 (∗2) 7 BG1 (∗1) 5 4 B SD Down M 6 BG1 2 SU Y 4 P9 Power Window Motor Front RH 6 BB1 2 BG1 B R–B 1 2 BB1 Up 5 D P6 Power Window Control SW Rear LH M U 3 G 4 P8 Power Window Motor Front LH 5 Down IE 7 BA1 4 B SD Y 5 M 4 P11 Power Window Motor Rear RH M 283 Behind the Combination Meter SU Up Right Kick Panel 6 BA1 2 4 B P5 Power Window Control SW Front RH IG J6 Junction Connector A 5 2 BA1 B G Y W–B W–B J7 Junction Connector A W–B B–W B–R B 7 IC1 A 8 IJ1 R W–B Battery 7 IJ1 6 IJ1 R (∗1) B L B R–L 8 4B B 10 4B B (∗1) B B W–B W–B FL MAIN 2. 0L 4 ID1 5 IL3 R–B (∗1) B 3 ID1 R (∗1) B(∗1) 7 IG R(∗2) 18 ID R–B (∗1) 4 IF R–B (∗2) 10 IH L 1 1A R–L 7 4B B–W 9 4B 3 B–R W–B 6 4B 2 1 B COROLLA (EM00H0U) 1 IA Front RH Front LH B–Y I10 Ignition SW D11 Power Window Master SW P o w e r S o u rc e M oon R oof 1 S h ift L o c k 4 3 2 ACC M2 Moon Roof Control Relay and SW 1 AM1 IG1 2 B–W W B–Y W I10 Ignition SW 12 IF 1 5 9 IF Open 1 Close Up 5 3B Down Stop Light SW < 9–2> 3 10A GAUGE 30A POWER 10A ECU–IG IG1 Relay B–W 1 IA 2 2 5 1 7 3B P/W Relay 1 IB IG 1 1D 2 1 1C 4 IF 10 IH 1 IE LS2 MTR+ 6 7 4 MTR– GND 5 8 2 IE W–B R G B R–L G–W W–B W–B 1 5 3 E IG STP W–B 100A ALT W–B 2 LS1 G–W 2 B–W 3 W W COROLLA (EM00H0U) 25A AM1 2 IF 5 6 1 2 1 LS2 LS1 1 1A 16 3A B M 4 SLS+ W–B Shift Lock Solenoid W–B S5 Shift Lock Control ECU Battery A IG A J7 Junction Connector Right Kick Panel Right Kick Panel J7 Junction Connector W–B IE W–B Behind the Combination Meter J6 Junction Connector W–B A SLS– Moon Roof Motor and Limit SW W–B W–B 11 3A M3 3 W–B FL MAIN 2. 0L IG M OVERALL ELECTRICAL WIRING DIAGRAM 284 21 COROLLA 22 COROLLA P o w e r S o u rc e L ig h t R e m in d e r S e a t B e lt W a rn in g 1 K e y R e m in d e r 4 3 2 G–W (∗4) G–W (∗4) G–W (∗5) 3 1 13 C12 Combination SW L–W ACC 1 IA 1 5 3 5 Buzzer 10 IH Seat Belt 2 IG R–W R–W W–B W–B 7 IC 4 IF C9 Combination Meter 18 25A AM1 15A TAIL G (∗4) G 10A GAUGE 2 4 IL 4 3 Taillight System < 8–1> 10 IG1 Relay L–W 16 3B W W 11 3B 1 1 1C 1 1D 6 11 17 12 2 2 L–B (∗1) A A J7 J6 Junction Connector Junction Connector Left Side of the Cylinder Head EB IE TVIP ECU < 19–4> A 1 L–B (∗3) U1 Unlock Warning SW W–B W–B IG L–B (∗1) W–B BR Right Kick Panel L–B (∗1) 2 C A A L–B (∗1) 18 4B 21 4B W–B W–B L–B (∗1) L–B (∗2) J3 Junction Connector : w/ Door Lock Control : w/o Door Lock Control : w/ TVIP System : USA : Canada : w/ Side Airbag and/or Stereo Component Amplifier : w/o Side Airbag and Stereo Component Amplifier L–B (∗2) 15 4A C B6 Buckle SW LH 16 4A II2 BR G–Y W–B Integration Relay< 18–7> 5 5 9 IM1 (∗6) 9 IG1 (∗7) W–B Behind the Combination Meter M 285 1 2 3 4 5 6 7 L–B (∗2) W–B BR 14 4A 6 ∗ ∗ ∗ ∗ ∗ ∗ ∗ 16 G–Y 15 3A L FL MAIN 2. 0L G–Y 8 IM1 (∗6) 8 IG1 (∗7) Interior Light System< 11–3> B 1 11 3A Airbag Sensor Assembly< 17–6> 1 1A L F7 Front Passenger Seat Belt Warning Light 1 PASSENGER 1 L–W 2 100A ALT 15A DOME 1 G–Y R–W 2 Battery Integration Relay < 18–8> 22 3B Transponder Key Computer< 5–4> 1 IB L–W COROLLA (EM00H0U) 12 IF 7 IH 5 3 L–W 2 IF 2 Tail Head R–W W I10 Ignition SW B–Y G (∗5) 20 4C IG1 2 TAIL Relay OFF W G–W (∗5) G–W (∗4) 1 AM1 Light Control SW 19 4C T E 3 3 P o w e r S o u rc e R e m o te C o n tro l M irro r 1 ACC 3 1 AM1 4 3 2 GR L–R IG1 6 IF R6 8 8 3A Remote Control Mirror SW B W I10 Ignition SW 15A CIG 12 IF 8 IF Right Up Down Left Right Left Right Left/ Up Right/ Down Operation SW 10 3A 25A AM1 GR Select SW 1 IB HL HR 5 VL VR 4 2 M+ 3 E 6 7 W–B BR–W LG R W R–W L 1 1C 16 3C 14 3C 1 IC2 1 2 IC2 M M+ 2 2 IJ3 2 IC2 BR–W W–B BR–W Battery M BR–W M+ 2 21 4B BR–W M MV BR–W M 3 MH R18 Remote Control Mirror RH FL MAIN 2. 0L R–W 1 MV 15 3C 3 IJ3 R 3 MH R17 Remote Control Mirror LH B 1 1 IJ3 LG L 1 1A 22 4B R LG 2 100A ALT COROLLA (EM00H0U) Left BR–W A BR–W J6 Junction Connector IE Behind the Combination Meter M OVERALL ELECTRICAL WIRING DIAGRAM 286 23 COROLLA 24 COROLLA P o w e r S o u rc e C ig a re tte L ig h te r 1 C lo c k 4 ∗ ∗ ∗ ∗ ∗ L–R : w/ Wireless Door Lock : w/o Wireless Door Lock : w/ TVIP System : w/ Cigarette Lighter : w/o Cigarette Lighter L GR IG1 1 2 3 4 5 B–W ACC 3 H o rn 3 2 1 AM1 L–W L L–W B–W W 20 4C I10 4 IL P o w e r O u tle t 6 IF 3 1 3 1 Ignition SW 12 IF 6 IH 2 1 3 5 16 4C 15A CIG L–W GR 25A AM1 15A P/POINT 1 1 G–Y GR GR Clock W L–W 3 2 Integration Relay< 18–8> 18 IA5 B L–Y G 1 1C W–B 5 3A W–B 6 3A 3 1 3 C7 10 3A 1 2 1 1 IB 1 HORN Relay 5 3 4 8 IF B–W 1 18 3A C5 Power Outlet (Front) 11 3A 12 4A G–Y (∗1) 1 W–B W–B (∗5) G–Y (∗1) G–Y (∗3) 2 IF1 IG Spiral 1 Cable C10 Combination SW A J7 Junction Connector Right Kick Panel TVIP ECU< 19–3> 1 Horn J6 A Junction Connector IE Behind the Combination Meter M 287 Behind the Combination Meter W–B W–B A J6 Junction Connector IE 13 4A P4 Power Outlet (Rear) 1 W–B (∗4) FL MAIN 2. 0L A 11 4A 2 2 W–B B Battery H6 Horn 1 12 3A G–Y (∗2) 1 1A C5 Cigarette Lighter L–Y 2 GR (∗5) GR (∗5) TAIL Relay (USA) Combination SW (Canada) < 10–4> 1 9 3A GR (∗4) 100A ALT 1 G–Y (∗1) 2 2 15A DOME 1 G–Y (∗1) 1 IF1 2 10A HORN COROLLA (EM00H0U) 7 IC P–POINT Relay P o w e r S o u rc e R e a r W in d o w D e fo g g e r 1 4 3 2 Engine Control Module < 3–6> < 4–6> ACC 1 AM1 IG1 2 2 IF 1 IA 8 IL 1 2 3 Noise Filter 40A DEFOG 2 2 1 3 10 IL 2 IG B 10 IH B 4 IF 5 DEF Relay 10A GAUGE W 1 1C 2 8 ID1 B IG1 Relay 4 IM 10A M–HTR/DEF I–UP 1 5 1 IB W 2 100A ALT B R–W 4 D R5 Rear Window Defogger SW 1 1A IG 14 3B W–B B W–B 5 E 2 R–W 1 A 1 B 1 N2 Noise Filter (Rear Window Defogger) 22 3B 1 R15(A), R16(B) Rear Window Defogger COROLLA (EM00H0U) 1 25A AM1 1 1D B W 12 IF W B–Y W I10 Ignition SW FL MAIN 2. 0L B W–B Battery Behind the Combination Meter IE J6 Junction Connector A A IG J7 Junction Connector Right Kick Panel IE Behind the Combination Meter BJ Under the Right Quarter Pillar M OVERALL ELECTRICAL WIRING DIAGRAM 288 25 COROLLA 26 COROLLA A u d io S y s te m (w / S te re o C o m p o n e n t A m p lifie r) P o w e r S o u rc e 1 4 3 2 Illumination System< 10–2> L–W L–R 10 3A 20 4C 7 3A 17 4C IG1 6 IF 1 15A CIG 11 R19 Radio and Player 1 ACC +B 12 IF TX– TX+ 5 R+ MUTE 8 7 15 R– L+ 9 18 13 2 ANT+ ILL+ 12 ILL– SLD L– 19 GND 10 20 (Shielded) GR G B W R W V P 25A AM1 GR L–R GR 7 IC 1 IL1 1 IB 8 IL2 L–R 6 IL2 16 IL2 17 IL2 7 IL2 (Shielded) G B W R BR S15(A), S16(B) Stereo Component Amplifier 12 B B2+ 20 B 19 B TX+ ACC TX– 1 B 5 B 4 B 3 B 2 B R+ R– L+ L– MUTE 2 GND2 16 A TWL+ TWL– 2 A 11 A RR– 14 A W R 2 Y 1 RR+ 5 A 3 IJ1 L L F8 Front Door Speaker LH 4 IJ1 B 2 BF1 RL– 13 A 4 IL1 L 1 BF1 RL+ 4 A L 2 3 IL1 LG BR 1 18 A LG 1 IJ1 FR– FR+ 7 A LG BR Right Kick Panel BR IG T4 Tweeter LH 2 IJ1 LG J7 Junction Connector 6 IL1 G–W L LG Battery 2 5 IL1 G–W R W–B 1 A TWR– 12 A G–W L 2 BE1 5 IC1 6 IC1 TWR+ 3 A W R–L 1 BE1 FL MAIN 2. 0L V 3 IC1 4 IC1 10 IL3 9 IL3 P B 2 IL1 L–W R–W W–B 1 1A 12 IL3 FL– 17 A V 11 IL3 FL+ 6 A P L–W R–W 1 GND 15 A W–B W–B 1 30A AMP 100A ALT 15A DOME 1 5 IL2 W 2 V P 10 A B+ 2 4 IL2 GR 1 A 1 L–R 1 1C 1 9 IL2 7 IL1 L–R L–R W L–W COROLLA (EM00H0U) 8 IF 5 IA2 B L–W GR I10 Ignition SW W L–W 4 IL A17 Antenna Amplifier ACC 3 1 AM1 1 2 F9 Front Door Speaker RH 1 2 R13 Rear Speaker LH 1 2 R14 Rear Speaker RH T5 Tweeter RH IF M 289 Behind the Combination Meter A u d io S y s te m (w /o S te re o C o m p o n e n t A m p lifie r) P o w e r S o u rc e 1 4 3 2 ∗ 1 : w/ Tweeter ∗ 2 : w/o Tweeter ACC 3 1 AM1 L–R IG1 6 IF IG2 15A CIG W L–W AM2 ST2 I10 Ignition SW 12 IF 8 IF 7 IC 20 4C 1 IB B 7 3A 17 4C L–W GR W 3 A 1 1C 1 8 A 10 A R 3(A), R 4(B) 4 A 5 B ILL+ ANT+ ACC Radio and Player +B ILL– 2 2 100A ALT 15A DOME GND FL+ FL– V (∗1) LG (∗1) L (∗1) 2 BF1 W P (∗1) 1 BF1 3 B 1 ID1 5 ID1 B 2 BE1 6 ID1 RR– RR+ 1 B R 2 ID1 1 1A 1 BE1 Y B 3 IJ1 4 IJ1 RL– 6 B 2 B L LG 5 IC1 6 IC1 RL+ FR– 5 A 1 A V 1 FR+ 6 A 2 A 7 A P 1 L–W Illumination System< 10–2> GR 25A AM1 1 10 3A L–W COROLLA (EM00H0U) A17 Antenna Amplifier 4 IL Behind the Combination Meter IF 1 1 2 F8 Front Door Speaker LH 2 F9 Front Door Speaker RH R13 Rear Speaker LH W T5 Tweeter RH 2 R T4 Tweeter LH Battery Y B 2 L (∗2) 1 1 L (∗1) L (∗1) LG (∗1) LG (∗1) LG (∗2) 2 V (∗2) 1 V (∗1) L (∗1) LG (∗1) P (∗1) P (∗2) BR FL MAIN 2. 0L 1 2 R14 Rear Speaker RH M OVERALL ELECTRICAL WIRING DIAGRAM 290 27 COROLLA Memo COROLLA (EM00H0U) 291 Skid Control ECU with Actuator < 14–7> < 15–3> Clutch Start SW(M/T)< 1–2> Park/Neutral Position SW (A/T)< 1–2> Illumination System< 10–6> Illumination System< 10–6> Headlight System< 6–6> R–W R B (∗1) L–W B R–W ODO/TRIP Temp. Fuel Tachometer Speedometer 15A AM2 25A AM1 Door HEAD High Beam B–R Fuel R–W (∗4) R–W W B–Y B–R W W L–W B–L BR B–L B Y BR A7 Ambient Temp. Sensor BR BR (∗4) Skid Control ECU with Actuator < 14–7> < 15–4> J 2(A), J 3(B) Junction Connector F10 Fuel Sender 2 W–G (∗4) R–W (∗4) FL MAIN 2. 0L J6 Junction Connector W–B V1 Vehicle Speed Sensor (Combination Meter) Engine Control Module< 3–10> < 4–10> Cruise Control ECU< 13–4> Key Reminder System< 22–4> Light Reminder System< 22–4> W–G (∗4) W–G (∗3) Engine Control Module< 3–10> < 4–10> W–G (∗3) W–G (∗4) V–W (∗2) V–W Engine Control Module < 3–7> < 4–7> Key Reminder System< 22–3> Light Reminder System< 22–3> Interior Light System< 11–3> B Left Side of the Cylinder Head 1 2 10A GAUGE J 4(A), J 5(B) Junction Connector IG1 Relay 30A MAIN 100A ALT 15A DOME 2 B Y BR BR B W–G V–W Y–R (USA) R–W (∗4) 5 ID2 B W–B A C A EB IE Behind the Combination Meter C B 3 Buzzer COROLLA (EM00H0U) 1 1A W–B A Battery 14 IA6 II2 4 7 4C 9 4C 2 3 1 C B C B 10 IA6 3 IA6 1 1 3 4 IF II2 5 B A 30 A 26 A 7 A 22 A 1 A 16 A 19 A 9 A 10 A 8 A 4 A 38 A 15 A 28 A 9 B C 9(A), C16(B) Out Side Temp. ODO/TRIP 16 3B 17 A 20 A 7 B 13 A 20 4C 13 ID2 Headlight System< 6–6> 1 5 2 2 ST2 Combination Meter I10 8 4C 1 2 1 IA 2 IG 2 IF II2 14 1 1 1D 1 1C 1 B–Y B–W W L–W Ignition SW L–W ACC B–O A M OVERALL ELECTRICAL WIRING DIAGRAM 292 2 IA4 19 4C IG2 6 5 AM2 20 3B 22 3B 3 IM 1 IB 7 IC IG1 2 1 AM1 4 8 IK B–W : Optitron Meter : 2ZZ–GE : w/ VSC, w/ ABS : Except ∗3 1 2 3 4 ∗ ∗ ∗ ∗ C o m b in a tio n M e te r P o w e r S o u rc e 5 IL 3 2 1 5 A 14 A 6 IM 12 IF 4 IL (Cont. next page) 28 COROLLA Turn Signal and Hazard Warning Light System < 7–3> B–O (USA) Brake ABS Tire Pressure Charge MAINT REQD Turn RH TAIL Turn LH (∗5) Seat Belt SRS (USA) (∗5) R–W R W–R LG W–B (∗3) W–B (∗4) (∗3) W–B (∗4) W–B (∗4) (∗3) 17 IA5 Charging System < 2–2> SRS System < 17–6> Seat Belt Warning System< 22–3> R–W (∗4) R–W (∗4) W–B (∗4) W–B Daytime Running Light Relay< 6–4> B2 Brake Fluid Level Warning SW ABS (w/ VSC), TRAC and VSC System< 14–3> ABS (w/o VSC) System< 15–2> ABS (w/ VSC), TRAC and VSC System< 14–3> ABS (w/o VSC) System< 15–2> R–W (∗3) J1 Junction Connector Tire Pressure Warning System< 14–3> < 15–2> W–B Front Left Suspension Tower ED M 293 Front Right Fender EA 2 15 IA5 B 1 R–W (∗4) B B 21 4B Taillight System< 8–2> R–B (∗2) (USA) R–W (∗4) 18 4B 16 IA5 5 IA6 14 IA5 : 2ZZ–GE : w/ VSC, w/ ABS : Except ∗3 : Canada 2 3 4 5 ∗ ∗ ∗ ∗ C o m b in a tio n M e te r 39 A 35 A 36 A 37 A 29 A 31 A 2 A 11 A 12 A Seat Belt Warning System< 22–2> Back–Up Light SW< 12–8> Illumination 32 A C 9(A), C16(B) Combination Meter 25 A 18 A 6 A 27 A 8 7 6 5 24 A (USA) COROLLA (EM00H0U) W–B B B–O A (Cont. next page) 28 COROLLA (Cont' d) CRUISE Washer Level Oil Pressure 34 A 21 A W L–W (∗5) ABS (w/ VSC), TRAC and VSC System< 14–4> Electronically Controlled Transmission System< 12–2> 1 1 O1 Oil Pressure SW W–B (∗5) W1 Washer Level Sensor 2 II2 3 Cruise Control System < 3–4> < 13–1> 13 IA6 Engine Control System < 3–4> < 4–3> Front Right Fender EA W L–W (∗5) COROLLA (EM00H0U) Malfunction Indicator Lamp O/D OFF Slip VSC 23 A 3 B 2 B 3 A 33 A C o m b in a tio n M e te r ∗ 5 : Canada 10 C 9(A), C16(B) Combination Meter 11 12 M OVERALL ELECTRICAL WIRING DIAGRAM 294 28 COROLLA (Cont' d) 9 29 COROLLA P o w e r S o u rc e R a d ia to r F a n 1 4 3 2 ACC B–W 1 AM1 IG1 2 B–W W–R B–W 1 W I10 Ignition SW 5 1 B–W B–Y 3 2 4 2 5 25A AM1 1 1 1 1 13 IC LG B–R LG–B LG–B 1 IB 2 2 1 14 A (1ZZ–FE) W–B 1 1A FAN W–B 1 9 B (2ZZ–GE) W–B E 3(A), E 4(B) Engine Control Module 100A ALT 4 IF R2 Radiator Fan Resistor 5 1 IA L–W W 2 P2 Pressure SW 2 1 1D 3 Single 1 W–B 3 IG1 Relay 30A RDI FAN 1 EA1 LG–B 2 1 6 EA1 LG–B 1 1C 1 LG 10A ECU–IG W B–W COROLLA (EM00H0U) 1 1 3 FAN NO. 2 Relay FAN NO. 1 Relay 12 IF 2 IF 1 1 1 CF 16 B (1ZZ–FE) B W–B 21 B (2ZZ–GE) LG B–R FL MAIN 2. 0L 2 M J6 Junction Connector IE W–R Front Right Fender EA ED Front Left Suspension Tower M 295 Behind the Combination Meter 1 W–B A W–B Battery R1 Radiator Fan Motor P o w e r S o u rc e ∗ 1 : 1ZZ–FE ∗ 2 : 2ZZ–GE A ir C o n d itio n in g 1 4 3 2 L–W L–W ACC 7 IF GND +IG FRS REC Off On FOOT F/D DEF 2 IG1 Relay 12 IF 5 1 3 2 B 1 10A A/C 40A HEATER 10A GAUGE 25A AM1 GND AIND A/C 4 3 4 EA1 W–B B–W 8 L–W 5 IM B B–W R–W B 1 B B 6 5 3 M 5 F HI M2 M1 1 LO OFF 1 6 P2 Pressure SW L–W 2 II2 Dual FL MAIN 2. 0L 1 8 EA1 Y (∗2) B R 4 8 IA6 BR B W–B 3 R–W 3 Y (∗1) F L–W B–W B 3 1 C (∗1) Y (∗1) 3 HP 27 B (∗2) 11 3A J3 Junction Connector BR B–W 1 ACMG E 3(A), E 4(B), E 5(C), E 6(D) Engine Control E2 Module 28 A 4 B–L B4 2 Blower Resistor A/C Thermistor THE 32 C A/CS Y (∗2) 1 ACLD 5 C (∗2) 2 C (∗1) BR B–W 4 20 3A 10 D 28 C B–L W–B R L–B 5 HTR Relay 1 1A 3 B–W 3 2 33 C FRS R–W M 1 REC R–W W–B 100A ALT B3 Blower Motor 13 3B 12 3B 2 A/C Thermistor A11 Air Inlet Control Servo Motor Blower Resistor 2 Y–B 18 3B 2 1 7 IA6 1 Y G–W 22 3B W–B R–W 1 1C A1 A/C Magnetic Clutch 2 IM REC 7 G–W 2 IG W 1 1D FRS 6 R–W 2 1 IB W COROLLA (EM00H0U) IG 9 Y–B 1 4 IF 1 B–W 3 2 1 B 5 REC 1 B/L M/G CLT Relay FRS A/C SW W 1 3 IC FACE Defroster Mode Detection SW 1 IA Air Inlet Control SW 2 IF I10 Ignition SW A8 A/C SW Air Inlet Control SW Defroster Mode Detection SW B B–Y L–W IG1 2 W 1 AM1 5 W–B 4 A W–B Behind the Combination Meter A Blower SW W–B J6 Junction Connector IE W–B W–B B5 A Battery A A J7 Right Kick Panel IG Junction Connector Front Right Fender EA M OVERALL ELECTRICAL WIRING DIAGRAM 296 30 COROLLA 31 COROLLA P o w e r S o u rc e H e a te r 1 4 3 2 A8 Air Inlet Control SW ACC B–Y 2 IF W I10 Ignition SW 1 IA 1 FRS Air Inlet Control SW IG1 2 W 1 AM1 REC GND +IG FRS REC 5 IG1 Relay 12 IF 2 3 1 FRS REC 7 GND 8 W–B G–W R–W L–W 40A HEATER 10A GAUGE 6 2 1 IB 4 IF 2 IG 2 IM R–W W W R–W 18 3B 1 1C W–B B–W 22 3B 1 1D 2 12 3B 13 3B B 2 4 W–B R L–B 11 3A M HTR Relay 1 IH1 2 IH1 6 IH1 W–B 5 2 B–W 2 1 1A B3 Blower Motor B–W M R–W 3 3 5 IH1 4 5 B–W 3 R–W L–W B–W 1 20 3A FRS R–W W–B 3 1 1 1 REC 2 1 A11 Air Inlet Control Servo Motor B4 Blower Resistor 100A ALT COROLLA (EM00H0U) 25A AM1 IG 9 B R 3 3 3 B FL MAIN 2. 0L L–W 4 1 2 HI M2 M1 LO OFF 6 5 A A A IG J7 Junction Connector Right Kick Panel M 297 Behind the Combination Meter A W–B W–B IE B5 Blower SW W–B J6 Junction Connector W–B W–B A Battery SYSTEM CIRCUITS H 2006 COROLLA ELECTRICAL WIRING DIAGRAM SYSTEM CIRCUITS ABS (w/ VSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ABS (w/o VSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Audio System (w/ Stereo Component Amplifier) . . . . . . . . . . . . . . . . . . . . . . . Audio System (w/o Stereo Component Amplifier) . . . . . . . . . . . . . . . . . . . . . . Automatic Glare–Resistant EC Mirror with Compass . . . . . . . . . . . . . . . . . . . Back–Up Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cigarette Lighter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Combination Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cruise Control (1ZZ–FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cruise Control (2ZZ–GE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Door Lock Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronically Controlled Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Control (1ZZ–FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Control (2ZZ–GE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Immobiliser System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fog Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Headlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interior Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Key Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Light Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Moon Roof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Multiplex Communication System (CAN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Outlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Radiator Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rear Window Defogger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Remote Control Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Seat Belt Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Shift Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stop Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Taillight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tire Pressure Warning System (w/ VSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tire Pressure Warning System (w/o VSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TRAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Turn Signal and Hazard Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TVIP System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wiper and Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wireless Door Lock Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 166 176 214 198 202 124 110 58 116 118 206 156 162 130 150 60 72 82 90 84 218 114 54 100 104 190 190 148 174 120 50 126 212 196 122 192 188 181 54 108 96 166 176 166 92 142 166 112 136 49 COROLLA (EM00H0U) F RELAY LOCATIONS [Engine Compartment] ABS R/B Skid Control ECU with Actuator Engine Room R/B Engine Room J/B Air Pump Relay [Body] Moon Roof Control Relay and SW Door Control Receiver Occupant Classification ECU Stereo Component Amplifier 20 COROLLA (EM00H0U) F [Instrument Panel] Center J/B Antenna Amplifier Glass Breakage Sensor ECU Transponder Key Computer Starter Cut Relay Cruise Control ECU RH R/B RH J/B Daytime Running Light Relay TVIP ECU Turn Signal Flasher Relay Engine Control Module Instrument Panel J/B Integration Relay Transponder Key Amplifier Airbag Sensor Assembly Shift Lock Control ECU 21 COROLLA (EM00H0U) F RELAY LOCATIONS 1 : Engine Room R/B : Engine Room J/B Engine Compartment Left (See Page 20) * 1:w/ VSC * 2:w/o VSC * 3:20A (1ZZ-FE) 15A (2ZZ-GE) 5 HEAD Relay 1 2 2 1 M/G CLT Relay 5 3 1A 1 1 1 2 (from Engine Wire) 50A AIR PUMP (for High Current) 40A HEAD MAIN (for High Current) 1 2 1 2 1 2 10A HEAD LH LWR EFI2 15A HEAD RH LWR 10A 3 2 1 5A 2 ALT-S 1 *3 2 EFI 1 10A 2 HAZARD 1 10A 2 HORN Gray 1B 1 1 (from Engine Wire) DOME 1 15A 2 MAIN 1 30A 2 AMP 1 30A 2 ETCS 1 10A 2 5 2 1 DIMMER Relay 3 1C 1 100A ALT (for High Current) 50A ABS NO.2 (*1) 40A ABS NO.2 (*2) (for High Current) 1 (from Engine Room Main Wire) Wire Color : W 2 1D HEAD RH UPR 2 10A 1 2 10A HEAD LH UPR 1 1 2 EFI Relay 1 2 1 2 5 3 2 1 5 3 30A RDI FAN (for High Current) 1 4 2 1 FOG Relay 5 3 5 3 1 FAN NO.2 Relay 30A ABS NO.1 (for High Current) 2 1 15A FOG 2 (from Engine Room Main Wire) Wire Color : W HORN Relay 1 5 3 2 2 22 COROLLA (EM00H0U) FAN NO.1 Relay F 2 : ABS R/B Engine Compartment Left (See Page 20) 2 1 5 5 3 2 1 3 ABS MTR CUT Relay ABS MTR Relay 23 COROLLA (EM00H0U) F RELAY LOCATIONS : Instrument Panel J/B 6 5 4 3 2 1 IM 3 4 1 Lower Finish Panel (See Page 21) 5 6 2 4 3 4 3 2 1 1110 9 8 7 6 5 IK 2 1 10 9 8 7 6 5 (from Instrument Panel Wire) (from Instrument Panel Wire) IL 2 1 2 1 2 1 30A POWER (for High Current) A/C 10A M-HTR/DEF I-UP 10A (from Instrument Panel Wire) 12 11 10 9 8 7 6 5 4 3 2 1 TAIL 15A STOP 15A OBD 7.5A DOOR 25A P/POINT 15A AM1 25A ECU-B 10A 15A CIG WIPER 25A ECU-IG 10A GAUGE 10A AM2 15A 40A HEATER (for High Current) 40A DEFOG (for High Current) WASHER 15A 1 2 3 4 5 6 7 8 9 1011 3 4 1 2 5 6 7 8 9 10 24 COROLLA (EM00H0U) Integration Relay F 1 2 3 4 5 6 7 8 9 10 111213141516 17181920 ID 10 9 8 7 20 19 18 17 6 5 4 3 2 1 16 1514 13 12 11 (from Floor Wire) 1 2 3 4 5 6 7 8 9 1011121314 1516 IC 8 7 6 5 4 3 2 1 3 16 15 14 13 12 11 10 9 1 ST Relay 2 5 (from Engine Room Main Wire) IA Gray 1 6 5 4 3 2 1 IE 1 3 4 5 6 1 2 (from Engine Room Main Wire) 5 1 3 DEF Relay 2 (from Roof Wire) C/OPN Relay Gray P/W Relay IB 3 5 1 1 1 3 5 2 1 2 3 5 2 1 2 Noise Filter 1 (from Engine Room Main Wire) IG1 Relay 7 6 5 4 3 2 1 IG 3 4 5 6 7 1 2 6 7 8 9 10111213 1 2 3 4 5 (from Instrument Panel Wire) IH 13121110 9 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9 10111213 IF 5 4 3 2 1 13121110 9 8 7 6 (from Instrument Panel Wire) (from Instrument Panel Wire) IJ 12 3 45678 Yellow 5 6 7 3 21 87654 1 2 8 9 10 3 4 (from Instrument Panel Wire) II 10 9 8 4 3 7 6 5 2 1 (from Instrument Panel Wire) 25 COROLLA (EM00H0U) F RELAY LOCATIONS [Instrument Panel J/B Inner Circuit] 3 IM 15 AM2 11 ID ST Relay 5 1 IM 3 7 IL 25A WIPER 2 11 IL 1 15A WASHER 4 IC 10A ECU-IG IG1 Relay 5 3 1 IA Noise Filter 1 2 2 6 IM 10A GAUGE 1 11 IC 9 IC 9 IF 13 IC 2 IF 3 IH 4 IM 1 2 40A DEFOG 5 IF DEF Relay 5 3 2 10A M-HTR/DEF I-UP 8 IL 1 10 IL 4 IF 6 II 10 IH 2 IJ 1 IE 1 II 3 II 4 IJ 10 II 2 II 5 IJ 1 2 2 IM 40A HEATER 7 II 6 IJ 7 IG 1 IF 5 II 1 IJ 1 2 30A POWER P/W Relay 5 3 2 1 18 ID 2 IE 2 IG 5 IE 1 IH 1 IB 10A ECU-B 12 IF 25A AM1 (Cont. Next Page) 26 COROLLA (EM00H0U) F (Cont'd) 15A STOP 2 IH 14 IC 6 IE 15A TAIL 7 IH 3 IG 13 IF 5 IH 5 IG 8 IH 6 IG 11 IH 12 IH 13 IH 3 IC 9 IH 25A DOOR 4 IH 15A P/POINT 6 IH 7.5A OBD 7 IJ 10A A/C 5 IM 7 IF 6 IF 15A CIG 8 IF C/OPN Relay 5 3 4 IG 1 5 IL 19 ID 2 1 IG 6 IL 8 IK 8 II 7 IC 12 IC 4 IL 5 IC 4 ID 7 ID 13 ID 1 IL 3 IE 2 IC 4 IE 2 ID 8 IC 2 IL 17 ID 6 ID 1 IK 1 IC 9 IK 10 IK +B 5 IK 20 ID 8 IJ IG 3 4 ACTKSW 3 IL 1 ID 10 ID 8 ID Integration Relay GND ACT+ PRCTY 5 8 7 1 10 9 2 6 12 ID 9 IL 2 IK 9 ID 14 ID DCTY 15 ID PRG 16 ID RDA 4 IK 3 IK 27 COROLLA (EM00H0U) F RELAY LOCATIONS 3 : RH R/B : RH J/B Right Side of the Instrument Panel Reinforcement (See Page 21) 3 5 1 1 3 5 2 1 5 4 3 2 2 TAIL Relay P-POINT Relay HTR Relay 3A 10 9 8 22 2120 7 6 5 4 19 18 17 16 15 14 3 2 1 1312 11 1 2 3 11 12 13 4 5 6 7 1415 16 17 1819 8 9 10 20 2122 (from Instrument Panel Wire) 3B 10 9 8 22 2120 7 6 5 4 19 18 17 16 15 14 3 2 1 1312 11 1 2 3 4 5 6 7 11 12 13 14 15 16 17 18 19 8 9 10 20 21 22 (from Instrument Panel Wire) 3C 9 8 2019 7 6 5 4 18 17 16 15 14 13 3 2 1 12 11 10 1 2 3 10 11 12 4 5 6 7 1314 15 16 1718 8 9 19 20 (from Instrument Panel Wire) 28 COROLLA (EM00H0U) F [RH J/B Inner Circuit] 1 3A 11 3A 2 3A 12 3A 3 3A 13 3A 4 3A 14 3A 5 3A 15 3A 6 3A 16 3A 7 3A 17 3A 8 3A 18 3A 9 3A 19 3A 10 3A 20 3A 1 3B 21 3A 2 3B 22 3A 3 3B 11 3B 4 3B 12 3B 5 3B 13 3B 6 3B 14 3B 7 3B 15 3B 8 3B 16 3B 9 3B 17 3B 10 3B 18 3B 1 3C 19 3B 2 3C 20 3B 3 3C 21 3B 4 3C 22 3B 5 3C 14 3C 6 3C 15 3C 7 3C 16 3C 8 3C 17 3C 9 3C 18 3C 10 3C 19 3C 11 3C 20 3C 12 3C 13 3C 29 COROLLA (EM00H0U) F RELAY LOCATIONS : Center J/B Behind the Combination Meter (See Page 21) 10 9 8 7 6 5 4 3 2 1 22 2120 19 18 17 16 15 14 1312 11 4A 1 2 3 1112 13 4 5 6 7 1415 16 17 18 19 8 9 10 202122 (from Instrument Panel Wire) 10 9 8 7 6 5 4 3 2 1 22 2120 19 18 17 16 15 14 1312 11 4B 1 2 3 11 12 13 4 5 6 7 14 15 16 17 18 19 8 9 10 20 21 22 (from Instrument Panel Wire) 9 8 20 19 7 6 5 4 3 2 1 18 17 16 15 14 13 12 11 10 4C 1 2 3 10 11 12 4 5 6 7 1314 15 16 1718 8 9 19 20 (from Instrument Panel Wire) 30 COROLLA (EM00H0U) F [Center J/B Inner Circuit] 1 4A 11 4A 2 4A 12 4A 3 4A 13 4A 4 4A 14 4A 5 4A 15 4A 6 4A 16 4A 7 4A 17 4A 8 4A 18 4A 9 4A 19 4A 10 4A 20 4A 1 4B 21 4A 2 4B 22 4A 3 4B 11 4B 4 4B 12 4B 5 4B 13 4B 6 4B 14 4B 7 4B 15 4B 8 4B 16 4B 9 4B 17 4B 10 4B 18 4B 1 4C 19 4B 2 4C 20 4B 3 4C 21 4B 4 4C 22 4B 5 4C 13 4C 6 4C 14 4C 7 4C 15 4C 8 4C 16 4C 9 4C 17 4C 10 4C 18 4C 11 4C 19 4C 12 4C 20 4C 31 COROLLA (EM00H0U) J6 Junction Connector 1 1 A IE FL MAIN 2. 0L 11 4B 14 3A 21 4B 11 3A 12 2 10 A 5 7 5 B W–B Battery A J7 Junction Connector IG 100 COROLLA (EM00H0U) R 3(A), R 4(B) Radio and Player 2 5 3 G W–B 10 G (∗1) G 3 (∗1) TAIL Relay 1 5 W–B R5 Rear Window Defogger SW G G 3 A8 A/C SW G OFF W–B ILL– 2 (∗4) 14 W–B ILL+ G (∗4) G T8 Traction Off SW TAIL D2 Daytime Running Light Relay 10 W–B 2 T G (∗1) R19 Radio and Player Head (∗3) Tail W–B 4 G Light Control SW C12 Combination SW (∗1) G–W (∗1) G–W 13 (∗3) 1 1C F7 Front Passenger Seat Belt Warning Light G 7 IH (∗2) W–B G (∗1) W–B 15A TAIL L–W G–W W–B W–B 2 W–B 1 (∗1) 7 IC 100A ALT W 4 IL W–B B 15A DOME L–W Illumination L–W G–W (∗1) (∗2) 15 3 3 G–B G G 1 IB 1 3 1 1A W–B ∗ ∗ ∗ ∗ ∗ ∗ 1 2 3 4 5 6 : USA : Canada : w/ Stereo Component Amplifier : w/o Stereo Component Amplifier : 1ZZ–FE : 2ZZ–FE (IG) 10A GAUGE E6 Engine Control Module 20 4C 2 IG 19 4C R–W ELS1(∗5) ELS(∗6) L–W L–W 12 G L–W 22 3B R–W 16 3B C 9(A), C16(B) Combination Meter G G G 4 A 5 A G 3 4 G 5 1 3 W–B 19 4B 18 4B 21 4B W–B W–B GND 1 J6 Junction Connector W–B LAMP 2 W–B W–B TAIL W–B G 8 TAIL CANCEL W–B R7 Rheostat W–B W–B W–B W–B METER W–B 9 B W–R 3 28 A B G 1 2 A W–B 2 A10 A/T Shift Lever Illumination G G 8 C6 Cigarette Lighter Illumination 5 B5 Blower SW H7 Hazard SW G Illumination A IE 101 COROLLA (EM00H0U) Illumination : Parts Location Code See Page Code See Page Code 36 D2 36 A10 36 E6 36 R5 37 B5 36 F7 37 R7 37 C6 36 H7 37 R19 37 36 J6 37 T8 37 36 J7 37 C9 A C12 C16 B 36 R3 A R4 See Page A8 B 37 37 : Relay Blocks Code See Page Relay Blocks (Relay Block Location) 1 22 Engine Room R/B (Engine Compartment Left) 3 28 RH R/B (Right Side of the Instrument Panel Reinforcement) : Junction Block and Wire Harness Connector Code IB IC IG IH See Page 25 Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) 25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) IL 24 1A 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 1C 22 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left) 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) 3A 3B 4B 4C : Ground Points Code See Page Ground Points Location IE 44 Behind the Combination Meter IG 44 Right Kick Panel 102 COROLLA (EM00H0U) Memo 103 COROLLA (EM00H0U) A IE 1 15 ID 6 IE 4 IE 4 ID L–W L–W 17 20 2 1 19 4C 20 4C 1 A W–B IG 104 COROLLA (EM00H0U) 1 5 A 1 L3 Luggage Compartment Light 4 IL J10 Junction Connector 4 IK L4 Luggage Compartment Light SW 3 R–W 3 IL R–Y IG R–W 6 R–Y 1 OFF ON P–DR 5 L–W 10 DOOR DCTY 9 R R–W 10A GAUGE W–B I13 Interior Light Door 1 ID W–B (IG) D7 Door Courtesy SW Rear RH L–W 1 IE GND R–W 10 IH W–B L–W 15A DOME L–W C9 Combination Meter 4 IF W–B (BAT) D4 Door Courtesy SW Front LH J7 Junction Connector W–B J6 Junction Connector W–B Interior Light (BAT) 25A DOOR 2 1 7 IC I11(A) Integration Relay B 2 A W–B(∗1) ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ 1 2 3 4 5 6 7 8 : w/ Moon Roof : w/o Moon Roof : w/ Door Lock Control : w/o Door Lock Control : w/ Automatic Glare–Resistant EC Mirror : w/o Automatic Glare–Resistant EC Mirror : w/ Stereo Component Amplifier : w/o Stereo Component Amplifier I11(A) Integration Relay PCTY R–W (∗6) (∗5) (∗6) (∗5) (∗5) (∗6) (∗5) B R–W (∗3 ∗8) R–W 3 (∗6) (∗3 ∗7) (∗3) R–W R–W 1 10 4B 12 A (∗4) 3 IG (∗4) 3 IK R–B B 14 ID (∗2) B (∗1) 3 IE LP2 13 A (∗2 ∗6) LP 3 A IL3 3 IK1 7 4B B (∗2 ∗6) R–W (∗3 ∗8) R–W (∗3 ∗7) (∗4) R–W R–W (∗4) 1 1 D5 Door Courtesy SW Front RH B(∗2 ∗5) B(∗2 ∗6) 6 (∗1) W–B 3 9 4B D6 Door Courtesy SW Rear LH M2 Personal Light I12 Personal Light 1 W–B W–B(∗1) (∗2 ∗6) 4 IK1 IE 105 COROLLA (EM00H0U) Interior Light : Parts Location Code See Page C9 Code 36 38 (*1) D4 40 (*2) I13 38 (*1) D7 A I12 38 (*1) D6 40 (*2) I11 40 (*2) D5 See Page D7 37 38 (*1) 40 (*2) 38 (*1) 40 (*2) 40 (*2) J6 37 38 (*1) J7 37 Code J10 L3 L4 M2 See Page 38 (*1) 40 (*2) 38 (*1) 40 (*2) 38 (*1) 40 (*2) 39 (*1) 41 (*2) : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) IC 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) ID 25 Floor Wire and Instrument Panel J/B (Lower Finish Panel) IE 25 Roof Wire and Instrument Panel J/B (Lower Finish Panel) IF IG 25 IH IK IL 4B 4C Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 24 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) : Connector Joining Wire Harness and Wire Harness Code See Page Joining Wire Harness and Wire Harness (Connector Location) IK1 45 Roof Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) IL3 45 Floor Wire and Instrument Panel Wire (Right Kick Panel) : Ground Points Code See Page Ground Points Location IE 44 Behind the Combination Meter IG 44 Right Kick Panel * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 106 COROLLA (EM00H0U) Memo 107 COROLLA (EM00H0U) Stop Light (BAT) 15A STOP R–W 14 IC 2 S9 Stop Light SW G–W 1 5 IC G–W G–W 7 ID C B C B J 8(A), J 9(B) Junction Connector 4 1 A 2 A G–W (LED Type) H 9(A) High Mounted Stop Light G–W (Bulb Type) B A R11 Rear Combination Light RH G–W 2 Stop Stop 2 R9 Rear Combination Light LH G–W B A 1 B H 9(B) High Mounted Stop Light 4 W–B (LED Type) W–B W–B W–B (Bulb Type) 2 B A A J 8(A) Junction Connector W–B A A A A W–B BI BH 108 COROLLA (EM00H0U) : Parts Location Code See Page 38 (*1) A 40 (*2) H9 38 (*1) B J8 Code A J9 B 40 (*2) A See Page J8 38 (*1) 40 (*2) Code R11 S9 See Page 39 (*1) 41 (*2) 37 39 (*1) R9 38 (*1) 40 (*2) 41 (*2) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) IC 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) ID 25 Floor Wire and Instrument Panel J/B (Lower Finish Panel) : Ground Points Code BH BI See Page 46 (*1) 47 (*2) 46 (*1) 47 (*2) Ground Points Location Under the Left Quarter Pillar Lower Back Panel * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 109 COROLLA (EM00H0U) Back–Up Light (IG) 10A GAUGE R–W 2 IG 22 3B R–W 20 3B II2 J10 Junction Connector R–W B C C R–B C R–B J4 Junction Connector B R–B 14 2 2 R–B W–B W–B R–B (M/T) 1 1 6 ID (A/T) 13 II2 A B A B J 8(A), J 9(B) Junction Connector R–B R–B 9 IK W–B A A W–B BH 110 COROLLA (EM00H0U) BI R10 Rear Combination Light LH Back–Up B1 Back–Up Light SW A2 Back–Up Light SW 1 Back–Up 1 2 2 R12 Rear Combination Light RH R–W (A/T) (M/T) R–W : Parts Location Code See Page A2 32 (1ZZ–FE) 32 (1ZZ–FE) B1 34 (2ZZ–GE) J4 J8 Code A J9 B 37 A See Page J8 J10 38 (*1) 40 (*2) 38 (*1) 40 (*2) 38 (*1) Code R10 R12 See Page 39 (*1) 41 (*2) 39 (*1) 41 (*2) 40 (*2) : Junction Block and Wire Harness Connector Code See Page ID 25 IG 25 IK 24 3B 28 Junction Block and Wire Harness (Connector Location) Floor Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) : Connector Joining Wire Harness and Wire Harness Code II2 See Page 45 Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Instrument Panel Wire (Blower Unit RH) : Ground Points Code BH BI See Page 46 (*1) 47 (*2) 46 (*1) 47 (*2) Ground Points Location Under the Left Quarter Pillar Lower Back Panel * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 111 COROLLA (EM00H0U) Wiper and Washer (IG) (IG) ∗ ∗ ∗ ∗ C11 Combination SW 1 2 3 4 : w/ Intermittent Volume SW : w/o Intermittent Volume SW : w/ Washer Continuous : w/ Intermittent MIST 25A 15A WIPER WASHER INT 11 IC 7 IL Wiper SW OFF LO 9 IC On EW L–W L–W 7 IA2 6 IA2 L–W L–W 5 8 IA2 L F5 Front Washer Motor +S 6 L–R 2 +1 7 W–B +2 9 W 4 L–Y (∗1) +B 8 M (∗2) (∗3) Wiper Relay (∗4) L L L Off L–W L–Y 9 IA2 L L–W L–R L–Y L–R 1 4 1 2 3 +2 +1 B S W–B M W–B 5 E A J6 Junction Connector F6 Front Wiper Motor ED IE 112 COROLLA (EM00H0U) Washer SW HI System Outline With the ignition SW turned on, the current flows to TERMINAL 8 of the wiper and washer SW, TERMINAL 2 of the front wiper motor through the WIPER fuse, and the current flows to TERMINAL 2 of the washer motor through the WASHER fuse. 1. Low Speed Position With wiper SW turned to LO position, the current flows from TERMINAL 8 of the front wiper and washer SW to TERMINAL 7 to TERMINAL 1 of the front wiper motor to TERMINAL 5 to GROUND and causes to the front wiper motor to run at low speed. 2. High Speed Position With wiper SW turned to HI position, the current flows from TERMINAL 8 of the front wiper and washer SW to TERMINAL 9 to TERMINAL 4 of the front wiper motor to TERMINAL 5 to GROUND and causes to the wiper motor to run at high speed. 3. INT Position With wiper SW turned to INT position, the relay operates and the current which is connected by relay function flows from TERMINAL 8 of the front wiper and washer SW to TERMINAL 5 to GROUND. This flow of current operates the intermittent circuit and the current flows from TERMINAL 8 of the front wiper and washer SW to TERMINAL 7 to TERMINAL 1 of the front wiper motor to TERMINAL 5 to GROUND and the functions. The intermittent operation is controlled by the charge/discharge function of the condenser installed in the relay, and the intermittent time is controlled by a time control SW (w/ intermittent volume SW) to change the charging time of the condenser. 4. MIST Position With wiper SW turned to MIST position, the current flows from TERMINAL 8 of the front wiper and washer SW to TERMINAL 7 to TERMINAL 1 of the front wiper motor to TERMINAL 5 to GROUND and causes to the front wiper motor to run at low speed. 5. Washer Continuous Operation With the washer SW turned to on, the current flows from TERMINAL 2 of the washer motor to TERMINAL 1 to TERMINAL 4 of the front wiper and washer SW to TERMINAL 5 to GROUND and causes to the washer motor to run, and the window washer jet operates. This causes the current to flow to washer continuous operation circuit in TERMINAL 8 of the front wiper and washer SW to TERMINAL 7 to TERMINAL 1 of the front wiper motor to TERMINAL 5 to GROUND and the washer operates continuously. : Parts Location Code See Page Code See Page Code See Page C11 36 F5 34 (2ZZ–GE) F6 34 (2ZZ–GE) F5 32 (1ZZ–FE) F6 32 (1ZZ–FE) J6 37 : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) IC 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) IL 24 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) : Connector Joining Wire Harness and Wire Harness Code IA2 See Page 44 Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) : Ground Points Code ED IE See Page 42 (1ZZ–FE) 43 (2ZZ–GE) 44 Ground Points Location Front Left Suspension Tower Behind the Combination Meter 113 COROLLA (EM00H0U) Horn ∗ 1 : w/ Wireless Door Lock ∗ 2 : w/o Wireless Door Lock (BAT) 10A HORN 2 B–W 1 B–W 1 1 1 5 HORN Relay 2 3 1 B G–Y 1 18 IA5 (∗1) G–Y 1 (∗2) G–Y 13 4A (∗1) G–Y 12 4A Horn 1 C10 Combination SW Spiral Cable 1 114 COROLLA (EM00H0U) H6 Horn : Parts Location Code See Page C10 36 Code H6 See Page 32 (1ZZ–FE) Code H6 See Page 34 (2ZZ–GE) : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code 4A See Page 30 Junction Block and Wire Harness (Connector Location) Instrument Panel Wire and Center J/B (Behind the Combination Meter) : Connector Joining Wire Harness and Wire Harness Code IA5 See Page 44 Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) 115 COROLLA (EM00H0U) Cigarette Lighter (ACC) 15A CIG GR 8 IF 10 3A GR 9 3A 2 C5 Cigarette Lighter W–B 1 A J6 Junction Connector IE 116 COROLLA (EM00H0U) : Parts Location Code See Page C5 Code 36 J6 See Page Code See Page 37 : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) IF 25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 3A 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) : Ground Points Code IE See Page 44 Ground Points Location Behind the Combination Meter 117 COROLLA (EM00H0U) Clock (BAT) (BAT) (ACC) 15A DOME 15A TAIL 15A CIG 2 1 8 IF L–W (USA) G–W 7 IH 3 GR G–W (USA) 7 IC 3 4 IL TAIL Relay 2 5 10 3A 16 4C 5 3A 1 4 3 G–B (USA) G–W (Canada) 3 20 4C GR L–W 3 L–W 1 14 TAIL D2 Daytime Running Light Relay C7 Clock T 2 W–B 3 G G (USA) G–W (USA) 15 13 Light Control SW OFF 18 3A Tail Head C12 Combination SW 10 G 11 3A W–B (USA) (Canada) W–B 11 4B W–B (USA) 21 4B A A J6 Junction Connector IE IG 118 COROLLA (EM00H0U) J7 Junction Connector : Parts Location Code See Page Code See Page C7 36 D2 36 C12 36 J6 37 Code J7 See Page 37 : Relay Blocks Code See Page Relay Blocks (Relay Block Location) 1 22 Engine Room R/B (Engine Compartment Left) 3 28 RH R/B (Right Side of the Instrument Panel Reinforcement) : Junction Block and Wire Harness Connector Code IC IF IH See Page 25 Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) 25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) IL 24 3A 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) 4B 4C : Ground Points Code See Page Ground Points Location IE 44 Behind the Combination Meter IG 44 Right Kick Panel 119 COROLLA (EM00H0U) Power Outlet (ACC) (BAT) 15A P/POINT 15A CIG 6 IH L GR 8 IF 10 3A 6 3A GR GR 9 3A 3 2 3 3 P–POINT Relay 1 5 3 3 W–B L–Y 1 IF1 L–Y GR 12 3A 2 2 11 3A P4 Power Outlet (Rear) 1 W–B W–B 1 C5 Power Outlet (Front) IF1 A J7 Junction Connector IG J6 Junction Connector W–B W–B 2 A A IE 120 COROLLA (EM00H0U) : Parts Location Code See Page Code See Page C5 36 J7 37 J6 37 P4 37 Code See Page : Relay Blocks Code 3 See Page 28 Relay Blocks (Relay Block Location) RH R/B (Right Side of the Instrument Panel Reinforcement) : Junction Block and Wire Harness Connector Code IF IH 3A See Page Junction Block and Wire Harness (Connector Location) 25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) : Connector Joining Wire Harness and Wire Harness Code IF1 See Page 45 Joining Wire Harness and Wire Harness (Connector Location) Console Box Wire and Instrument Panel Wire (Under the Instrument Panel Center) : Ground Points Code See Page Ground Points Location IE 44 Behind the Combination Meter IG 44 Right Kick Panel 121 COROLLA (EM00H0U) Remote Control Mirror (ACC) 15A CIG GR 8 IF 10 3A GR 8 3A R6 Remote Control Mirror SW 8 B Left Right Up Down Left Right Left Right Operation SW Right/ Down Select SW VR M+ 3 E 6 7 BR–W W–B R–W L VL 4 LG HR 2 R HL 5 Left/ Up IJ3 IJ3 21 4B 3 MV MV MH BR–W M+ 15 3C W–B M BR–W M+ 2 M R18 Remote Control Mirror RH M 2 BR–W M R17 Remote Control Mirror LH 14 3C BR–W 1 16 3C 2 IJ3 2 IC2 A J6 Junction Connector BR–W 3 MH 3 R–W LG 1 1 R 2 IC2 L 22 4B 1 IC2 IE 122 COROLLA (EM00H0U) : Parts Location Code See Page J6 37 R6 37 Code R17 See Page 39 (*1) 41 (*2) Code R18 See Page 39 (*1) 41 (*2) : Junction Block and Wire Harness Connector Code IF 3A 3C 4B See Page Junction Block and Wire Harness (Connector Location) 25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) : Connector Joining Wire Harness and Wire Harness Code See Page Joining Wire Harness and Wire Harness (Connector Location) IC2 44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel) IJ3 45 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel) : Ground Points Code IE See Page 44 Ground Points Location Behind the Combination Meter * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 123 COROLLA (EM00H0U) Automatic Glare–Resistant EC Mirror with Compass (IG) 10A GAUGE B–L 5 IE 7 I12 Inner Mirror B 6 W–B 4 IK1 IE 124 COROLLA (EM00H0U) : Parts Location Code See Page I12 Code 38 (*1) I12 See Page Code See Page 40 (*2) : Junction Block and Wire Harness Connector Code IE See Page 25 Junction Block and Wire Harness (Connector Location) Roof Wire and Instrument Panel J/B (Lower Finish Panel) : Connector Joining Wire Harness and Wire Harness Code IK1 See Page 45 Joining Wire Harness and Wire Harness (Connector Location) Roof Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) : Ground Points Code IE See Page 44 Ground Points Location Behind the Combination Meter * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 125 COROLLA (EM00H0U) Power Window 10A GAUGE 30A POWER D11 Power Window Master SW B (BAT) B (IG) 6 7 B B B B 1 2 IC3 B 2 8 IC1 Down 5 IC P/W Relay 9 4B 7 4B 18 ID 8 4B B(∗1) 4 IF B B 6 4B 10 4B B 7 IG B(∗2) 3 W–B 2 B Front LH G DD 9 Y DU 4 W–B E 3 W–B E 1 B(∗1) B(∗2) B W–B B Y G W–B 7 IC1 A W–B J6 Junction Connector A IE 126 COROLLA (EM00H0U) 4 M 5 P8 Power Window Motor Front LH ∗ 1 : w/ Stereo Component Amplifier ∗ 2 : w/o Stereo Component Amplifier D11 Power Window Master SW Front RH Rear LH Rear RH Window Lock SW Lock Normal PD RLU RLD RRU RRD R 5 IC3 4 IC3 3 IC3 4 ID1 B(∗1) R 3 ID1 (∗1) 6 IC3 R–B 7 IC3 L 1 IC3 R–L R–B 16 L 10 R–L 13 B–W 12 B–R 15 (∗1) PU 18 B(∗1) 6 IL3 5 IL3 M 5 P9 Power Window Motor Front RH 5 M R (∗1) (∗2) R (∗2) D P7 Power Window Control SW Rear RH Down Up 3 P10 Power Window Motor Rear LH SD U 1 4 R B P6 Power Window Control SW Rear LH Down D 2 SU 1 G 3 7 BB1 (∗2) 7 BG1 (∗1) 5 4 B Y Y 4 SD U 1 Y D 2 SU G U 3 5 4 B 6 BB1 6 BG1 G Up Down SD 2 BB1 2 BG1 R B 2 SU R–B 7 BA1 R–B 6 BA1 B(∗2) L 2 BA1 P5 Power Window Control SW Front RH 5 4 B R–L IJ1 R–B 8 Up IJ1 B–W 7 B–R IJ1 B 6 B B–R B–W B B IL3 R–B 4 (∗1) B (∗1) B(∗2) 5 M 4 P11 Power Window Motor Rear RH 127 COROLLA (EM00H0U) Power Window System Outline When the ignition SW is turned on, the current flows through the GAUGE fuse to TERMINAL 1 of the P/W relay to TERMINAL 2 to GROUND. This activates the relay and the current flows through the POWER fuse to TERMINAL 5 of the relay to TERMINAL 3 to TERMINAL B of the power window master SW, TERMINAL 4 of the power window control SW. 1. Manual Operation (Driver's Window) With the ignition SW turned on and with the power window master SW (Front LH) in Up position, the current flowing to TERMINAL B of the power window master SW flows to TERMINAL DU of the master SW to TERMINAL 4 of the power window motor to TERMINAL 5 to TERMINAL DD of the master SW to TERMINAL E to GROUND and rotates the power window motor in the up direction. The window ascends only while the SW is being pulled. In down operation, the flows of current from TERMINAL B of the power window master SW to TERMINAL DD to TERMINAL 5 of the motor to TERMINAL 4 to TERMINAL DU of the master SW to TERMINAL E to GROUND, flowing in the opposite direction to manual up operation and rotating the motor in reverse, thus opening the window. 2. Auto Down Operation (Driver's Window) When the front LH window control SW in the power window master SW is pushed strongly on the down side, current flows from TERMINAL B of the master SW to TERMINAL DD to TERMINAL 5 of the power window motor to TERMINAL 4 to TERMINAL DU of the master SW to TERMINAL E to GROUND. Because the hold circuit inside the master SW keeps the relay on the down side activated, the power window motor continues operating even if the power window master SW is released. When the driver's window is fully opened, the hold circuit turns off and the relay on the down side turns off, and auto down operation is completed. 3. Stopping of Auto Down Operation (Driver's Window) When the master SW (Front LH) is pulled to the up side during auto down operation, a ground circuit opens in the master SW and current does not flow from TERMINAL DU of the master SW to TERMINAL E, so the motor stops, causing auto down operation to stop. If the master SW is pulled continuously, the motor rotates in the up direction in manual up operation. 4. Manual Operation (Front RH Window) With the power window control SW (Front RH) pulled to the up side, current flowing from TERMINAL 4 of the power window control SW flows to TERMINAL 3 to TERMINAL 4 of the power window motor to TERMINAL 5 to TERMINAL 1 of the power window control SW to TERMINAL 2 to TERMINAL PD of the master SW to TERMINAL E to GROUND and rotates the power window motor (Front RH) in the up direction. Up operation continues only while the power window control SW is pulled to the up side. When the window descends, the current flowing to the motor flows in the opposite direction, and the motor rotates in reverse. When the window lock SW is pushed to the lock side, the ground circuit to the passenger's window becomes open. As a result, even if Open/Close operation of the passenger's window is attempted, the current from TERMINAL E of the power window master SW is not grounded and the motor does not rotate, so the passenger's window can not be operated and window lock occurs. 5. Manual Operation (Rear LH, Rear RH Window) With the power window control SW (Rear LH, rear RH) pulled to the up side, current flowing from TERMINAL 4 of the power window control SW flows to TERMINAL 3 to TERMINAL 5 of the power window motor to TERMINAL 4 to TERMINAL 1 of the power window control SW to TERMINAL 2 to TERMINAL RLD, RRD of the master SW to TERMINAL E to GROUND and rotates the power window motor (Rear LH, rear RH) in the up direction. Up operation continues only while the power window control SW is pulled to the up side. When the window descends, the current flowing to the motor flows in the opposite direction, and the motor rotates in reverse. When the window lock SW is pushed to the lock side, the ground circuit to the passenger's window becomes open. As a result, even if Open/Close operation of the passenger's window is attempted, the current from TERMINAL E of the power window master SW is not grounded and the motor does not rotate, so the passenger's window can not be operated and window lock occurs. : Parts Location Code D11 J6 P5 P6 See Page Code 38 (*1) P6 40 (*2) P7 37 39 (*1) P8 41 (*2) 39 (*1) P9 * 1 : w/ Side Airbag and/or Stereo Component Amplifier See Page 41 (*2) 39 (*1) 41 (*2) 39 (*1) 41 (*2) Code P9 P10 P11 39 (*1) * 2 : w/o Side Airbag and Stereo Component Amplifier 128 COROLLA (EM00H0U) See Page 41 (*2) 39 (*1) 41 (*2) 39 (*1) 41 (*2) : Junction Block and Wire Harness Connector Code ID IF IG 4B See Page Junction Block and Wire Harness (Connector Location) 25 Floor Wire and Instrument Panel J/B (Lower Finish Panel) 25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) : Connector Joining Wire Harness and Wire Harness Code IC1 See Page Joining Wire Harness and Wire Harness (Connector Location) 44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel) ID1 44 Instrument Panel Wire and Floor Wire (Left Kick Panel) IJ1 45 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel) IL3 45 Floor Wire and Instrument Panel Wire (Right Kick Panel) IC3 BA1 BB1 BG1 46 (*1) 47 (*2) 46 (*1) 47 (*2) 46 (*1) Rear Door LH Wire and Floor Wire (Left Center Pillar) Rear Door RH Wire and Instrument Panel Wire (Right Center Pillar) Rear Door RH Wire and Floor Wire (Right Center Pillar) : Ground Points Code IE See Page 44 Ground Points Location Behind the Combination Meter * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 129 COROLLA (EM00H0U) Door Lock Control (BAT) 25A DOOR UL1 17 4A 18 4A L IJ3 6 5 3 W–B W–B 3 A (∗1) 3 B (∗2) 9 L 8 A (∗1) 5 B (∗2) Unlock 5 A 6 B IJ3 Unlock 8 L–W 9 IC2 L 8 IC2 21 4A D12 Door Lock Control SW Front RH 20 4A L–W L 19 4A L L–W 22 4A L–W W–B I11(A) Integration Relay L–W 10 IH Lock 4 IF 8 A Lock L1 9 A 9 D10(B), D11(A) Door Lock Control SW Front LH GND W–B B 1 W–B W–B W–B W–B 7 IC1 W–B W–B W–B A A J6 Junction Connector IE 130 COROLLA (EM00H0U) ∗ 1 : w/ Power Window ∗ 2 : w/o Power Window LSWP 18 A W–R UL2 5 A L–B L2 7 A G R ACTD 1 A W LSWD 19 A L–Y UL3 6 A I11(A) Integration Relay G 2 4A 3 4A 1 4A L R G L–Y W R L G L–B W–R R L 9 10 8 1 4 6 5 7 1 4 M D8 Door Key Lock and Unlock SW Front LH Door Lock Motor Front LH Door Unlock Detection SW Front LH IJ3 W–B 8 W–B W–B 10 IJ3 Detection 7 Unlock IJ3 Lock 6 R L 11 IC1 Lock W–B L–B R 12 IC1 G W 10 IC2 Detection L–Y 7 IC2 Unlock G 6 IC2 7 W–B W–R L 10 IJ1 9 IJ1 M D9 Door Key Lock and Unlock SW Front RH Door Lock Motor Front RH Door Unlock Detection SW Front RH W–B W–B 131 COROLLA (EM00H0U) Door Lock Control I11(A) Integration Relay 2 IK 20 ID 9 ID R L (∗7) L 10 4A G–W R 6 4A BKL 21 A G–W 8 IM1 (∗3) 8 IG1 (∗4) (∗7) G–W (∗7) (∗7) 6 5 BA1 4 BA1 1 4 6 W–B 9 IM1 (∗3) 9 IG1 (∗4) Detection M (∗7) 10 BA1 G–W W–B G–W L 10 ID2 L 6 (∗7) G–W 4 Detection 1 M IL3 G–W L (∗5) 5 BB1 5 BG1 L 4 BB1 (∗6) 4 BG1 (∗5) 10 BB1 10 BG1 R R (∗5) L 7 R G–W IL3 5 (∗6 ∗7) 1 (∗5) L L IL3 (∗6) 2 R R (∗6) R (∗5) L G–Y 7 4A R 5 4A G–W 9 4A (∗5 ∗7) 4 4A (∗5 ∗7) 8 4A 15 3A D15 Door Lock Motor Rear LH Door Unlock Detection SW Rear LH 9 (∗7) (∗7) W–B 9 W–B D16 Door Lock Motor Rear RH Door Unlock Detection SW Rear RH 11 3A 3 BG1 (∗5) 3 BB1 (∗6) 3 BA1 W–B (∗5 ∗7) W–B(∗6 ∗7) A W–B W–B A A J7 Junction Connector IG (∗7) A W–B A BH 132 COROLLA (EM00H0U) W–B J8 Junction Connector A IL3 W–B W–B 8 (∗5 ∗7) IJ1 (∗7) W–B W–B 5 B6 Buckle SW LH 5 IK LSR 17 A G–Y 2 (∗7) ACT+ 3 G–W ACT– (IG) I11(A) Integration Relay 10A GAUGE 4 20 A 8 IJ 22 3B L–B 15 ID P (∗7) KSW 6 14 ID (∗5) R–W 1 ID P–DR R–W PCTY 13 A 5 (∗7) DCTY L–R 2 IG 1 IA6 (∗7) 20 3B R–W 16 4A (∗7) IL3 L–R 3 R–Y J1 Junction Connector (∗7) R–W D L–R B J4 Junction Connector B A2 A/T Shift Lever Position SW 1 (∗7) 2 II2 R–W 1 14 U1 Unlock Warning SW 1 D7 Door Courtesy SW Rear RH 1 D6 Door Courtesy SW Rear LH 1 D5 Door Courtesy SW Front RH D4 Door Courtesy SW Front LH L–B D (∗7) R–B (∗6) R–W (∗5) R–W R–W 15 4A 2 2 EA1 PL ∗ ∗ ∗ ∗ ∗ 3 4 5 6 7 : w/ Side Airbag and/or Stereo Component Amplifier : w/o Side Airbag and Stereo Component Amplifier : w/ Stereo Component Amplifier : w/o Stereo Component Amplifier : A/T (∗7) L–R (∗7) W–B L–R 6 A J6 Junction Connector IE 133 COROLLA (EM00H0U) Door Lock Control System Outline The current always flows to TERMINAL 1 of the integration relay through the DOOR fuse. 1. Manual Lock Operation When the door lock control SW or door key lock and unlock SW are operated to LOCK position, a lock signal is input to TERMINAL (A) 9 or (A) 7 of the integration relay and causes the relay to function. The current flows from TERMINAL 1 of the relay to TERMINAL 2 to the door lock motors to TERMINALS (A) 1 and 3 of the relay to TERMINAL 9 to GROUND and the door lock motors locks the door. 2. Manual Unlock Operation When the door lock control SW or door key lock and unlock SW are operated to UNLOCK position, an unlock signal is input to TERMINAL (A) 8, (A) 6 or (A) 5 of the integration relay and causes the relay to function. The current flows from TERMINAL 1 of the relay to TERMINALS (A) 1 and 3 to the door lock motors to TERMINAL 2 of the relay to TERMINAL 9 to GROUND and the door lock motors unlocks the door. 3. Double Operation Unlock Operation When the door key lock and unlock SW LH is turned to the unlock side, only the driver's door is unlocked. By turning the door key lock and unlock SW LH to the unlock side, a signal is input to TERMINAL (A) 6 of the relay, and if the signal is input again within 3 seconds by turning the SW to the unlock side again, current flows from TERMINAL 3 of the integration relay to the door lock motors to TERMINAL 2 of the relay to TERMINAL 9 to GROUND, causing the door lock motors to operate and unlock the doors. 4. Ignition Key Reminder Operation ∗ Operating door lock knob (Operation of door lock motors) With the ignition key in the cylinder (Unlock warning SW on), when the door is opened and locked using door lock knob (Door lock motor), the door is locked once but each door is unlocked soon by the function of the relay. As a result, the current flows from TERMINAL 1 of the integration relay to TERMINALS (A) 1 and 3 to the door lock motors to TERMINAL 2 of the relay to TERMINAL 9 to GROUND and unlocks all the doors. ∗ Operating door lock control SW or door key lock and unlock SW With the ignition key in the cylinder (Unlock warning SW on), when the door is opened and locked using door lock control SW or key SW, the door is locked once but each door is unlocked by the function of SW contained in motors, and the signal is input to TERMINAL (A) 19 of the relay. According to this input signal, the current flows from TERMINAL 1 of the relay to TERMINALS (A) 1 and 3 to the door lock motors to TERMINAL 2 of the relay to TERMINAL 9 to GROUND and unlocks all the doors. ∗ In case of key less lock With the ignition the key in the cylinder (Unlock warning SW on), when the unlock function is disturbed, for example pushing the door lock knob etc., the door holds on lock condition. After closing the door after, door courtesy SW inputs the signal into TERMINAL 5 or 6 or (A) 13 of the integration relay. By this input signal, the relay works and current flows from TERMINAL 1 of the relay to TERMINALS (A) 1 and 3 to the door lock motors to TERMINAL 2 of the relay to TERMINAL 9 to GROUND and unlocks all the doors. 5. Shift–Linked Door Lock It is a user–friendly function to control door lock according to shift position of automatic transmission (A/T) vehicle. There are three full functions as follows; ∗ Shift–linked auto door lock It locks all the doors when shift lever is shifted from P position to other positions under the ignition SW ON condition. ∗ Shift–linked auto door unlock It unlocks all the doors when shift lever is shifted from other positions than P position to P position under the ignition SW ON condition. ∗ Ignition–SW–linked auto door unlock It unlocks all the doors when the ignition SW is turned OFF. 6. Door–Key–Linked Door Lock Prohibition Control It prohibits central door–key–linked door lock or door unlock operation only when the driver's seat belt is fastened under the ignition SW ON condition. 134 COROLLA (EM00H0U) : Parts Location Code See Page A2 Code 32 (1ZZ–FE) 38 (*1) B6 38 (*1) 38 (*1) D5 38 (*1) 38 (*1) D15 40 (*2) D8 A D12 40 (*2) D7 B 38 (*1) D16 See Page D16 I11 40 (*2) D11 40 (*2) D6 38 (*1) D10 40 (*2) Code 40 (*2) D9 40 (*2) D4 See Page D8 38 (*1) 40 (*2) A J1 37 33 (1ZZ–FE) 35 (2ZZ–GE) 40 (*2) J4 37 38 (*1) J6 37 40 (*2) J7 37 38 (*1) 40 (*2) 38 (*1) J8 U1 38 (*1) 40 (*2) 37 40 (*2) 38 (*1) : Junction Block and Wire Harness Connector Code ID See Page 25 Junction Block and Wire Harness (Connector Location) Floor Wire and Instrument Panel J/B (Lower Finish Panel) IF IG IH 25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) IJ IK 3A 3B 4A 24 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) : Connector Joining Wire Harness and Wire Harness Code EA1 IA6 IC1 IC2 See Page 42 (1ZZ–FE) 43 (2ZZ–GE) Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of the Engine Room R/B) 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) 44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel) ID2 44 Instrument Panel Wire and Floor Wire (Left Kick Panel) IG1 45 Instrument Panel Wire and Instrument Panel No.3 Wire (Front Side of the Parking Brake Lever) II2 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) 45 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel) IL3 45 Floor Wire and Instrument Panel Wire (Right Kick Panel) IM1 45 Instrument Panel Wire and Floor Wire (Front Side of the Parking Brake Lever) IJ1 IJ3 BA1 BB1 BG1 46 (*1) 47 (*2) 46 (*1) 47 (*2) 46 (*1) Rear Door LH Wire and Floor Wire (Left Center Pillar) Rear Door RH Wire and Instrument Panel Wire (Right Center Pillar) Rear Door RH Wire and Floor Wire (Right Center Pillar) : Ground Points Code See Page Ground Points Location IE 44 Behind the Combination Meter IG 44 Right Kick Panel BH 46 (*1) 47 (*2) Under the Left Quarter Pillar * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 135 COROLLA (EM00H0U) W–B W–B A A A J6 Junction Connector W–B W–B 2 D4 Door Courtesy SW Front LH IE 1 1 1 1 1 IE 136 COROLLA (EM00H0U) 20 4A 17 4A 9 IC2 21 4A 8 5 A 6 B 8 A (∗1) 5 B (∗2) 3 A (∗1) 3 B (∗2) W–B J6 Junction Connector IJ3 9 6 5 3 D12 Door Lock Control SW Front RH 19 4A L 22 4A L 8 A Unlock 8 IC2 L–W 16 4A L L1 L–W L 9 A Lock L IL3 Unlock 10 IH L–W 9 L–W GND 6 L–W P–DR Lock 4 IF W–B 15 ID D10(B), D11(A) Door Lock Control SW Front LH 14 ID W–B PCTY R–Y 13 A D7 Door Courtesy SW Rear RH R–B 3 (∗4) 15 4A (∗3) 1 ID D6 Door Courtesy SW Rear LH R–W R–W 8 IJ (∗3) 5 R–W L–B DCTY 4 D5 Door Courtesy SW Front RH R–W L–B KSW W–B W–B U1 Unlock Warning SW Wireless Door Lock Control UL1 I11(A) Integration Relay 18 4A IJ3 W–B W–B 7 IC1 W–B ∗ ∗ ∗ ∗ UL2 LSWP 5 A 18 A W–R R L2 7 A L–B W ACTD 1 A L–Y LSWD 19 A Y–B UL3 6 A : w/ Power Window : w/o Power Window : w/ Stereo Component Amplifier : w/o Stereo Component Amplifier G HAZ 25 A 1 2 3 4 I11(A) Integration Relay G 1 3C 2 4A 3 3C 3 4A 1 4A L R W–B L W R L G L–B W–R R L 9 10 8 1 4 6 5 7 1 4 6 IJ3 7 IJ3 10 IJ3 R R 11 IC1 L–Y W–R W 12 IC1 10 IJ1 9 IJ1 D8 Door Key Lock and Unlock SW Front LH Door Lock Motor Front LH Door Unlock Detection SW Front LH W–B 8 W–B W–B Detection Unlock M Lock Detection Unlock EHW 7 W–B L–B L–Y 10 IC2 G G 7 IC2 G 8 6 IC2 Lock T2 Turn Signal Flasher Relay Y–B L M D9 Door Key Lock and Unlock SW Front RH Door Lock Motor Front RH Door Unlock Detection SW Front RH W–B W–B 137 COROLLA (EM00H0U) Wireless Door Lock Control I11(A) Integration Relay 9 ID R L (∗7) L 10 4A G–W R 6 4A 20 ID G–W 8 IM1 (∗5) 8 IG1 (∗6) (∗7) G–W (∗7) 6 5 BA1 4 BA1 G–W 1 4 6 9 IM1 (∗5) 9 IG1 (∗6) W–B Detection M (∗7) 10 BA1 L W–B (∗7) G–W L R IL3 R 6 (∗3 ∗7) G–W G–W 4 Detection L 1 M 7 G–W L (∗3) 5 BB1 5 BG1 R R (∗3) 4 BB1 (∗4) 4 BG1 (∗3) 10 BB1 10 BG1 5 10 ID2 (∗3 ∗7) IL3 G–W 1 L (∗4 ∗7) L IL3 L 2 R R (∗4) R L 7 4A (∗7) 5 4A (∗3) 9 4A (∗4) 4 4A (∗3) 8 4A B6 Buckle SW LH 2 IK BKL 21 A G–Y 5 IK LSR 17 A G–Y 2 (∗7) ACT+ 3 G–W ACT– 15 3A D15 Door Lock Motor Rear LH Door Unlock Detection SW Rear LH 9 (∗7) (∗7) W–B 9 W–B D16 Door Lock Motor Rear RH Door Unlock Detection SW Rear RH 11 3A 3 BA1 IL3 W–B(∗4 ∗7) W–B W–B W–B W–B 8 W–B IJ1 (∗3 ∗7) 5 (∗4 ∗7) W–B (∗3 ∗7) (∗7) W–B W–B W–B 3 BG1 (∗3) 3 BB1 (∗4) A A A W–B A J7 Junction Connector IG 138 COROLLA (EM00H0U) (∗7) (BAT) 2 1 L–W (∗7) R–W L–R B–W 10 ID 1 R 8 ID 11 A 2 IG B HRLY 10 A R 20 A (∗7) 8 G–Y HORN P PRG 2 1 1 7 (BAT) 15A DOME 10A HORN 25A DOOR 2 RDA (IG) 10A GAUGE (BAT) 40A HEAD MAIN (BAT) I11(A) Integration Relay B–W R 11 4A 5 3C 1 1 1 1 22 3B 7 IC 20 3B 13 ID 1 IA6 L–Y (∗7) R–W B R–W II2 6 B (∗7) 14 18 IA5 J4 Junction Connector G–Y R–B R–Y (∗7) H 1 H–LP 2 D2 Daytime Running Light Relay PL (∗7) A2 A/T Shift Lever Position SW R–W B (∗7) 5 3 1 1 4 IA2 7 2 EA1 L–R 1 2 5 R–Y +B L–Y GND 5 HORN Relay 2 1 L–R G–Y L–R 3 PRG W–B D3 Door Control Receiver 2 1 D D RDA 3 HEAD Relay 6 3C R (∗7) 13 4A G–Y J1 Junction Connector L–R 1 (∗7) L–R 6 A B J 8(A), J 9(B) Junction Connector W–B (∗7) A A ∗ ∗ ∗ ∗ ∗ 3 4 5 6 7 : w/ Stereo Component Amplifier : w/o Stereo Component Amplifier : w/ Side Airbag and/or Stereo Component Amplifier : w/o Side Airbag and Stereo Component Amplifier : A/T W–B A A BH 139 COROLLA (EM00H0U) Wireless Door Lock Control System Outline Door lock control (Lock and unlock) and panic control (TVIP alarm and flash) is performed by remote control, without the ignition key inserted in the door key cylinder, using low–power electrical waves emitted by a transmitter. 1. Wireless Door Lock or Unlock Normal Operation With the ignition key not inserted into the ignition key cylinder (Unlock warning SW off) and all the doors completely closed, when the lock or unlock button (Transmitter) is pushed, the door control receiver receives the electrical waves from the transmitter, and sends a signal to the integration relay causing it to operate. As a result, the integration relay judges whether the door is locked or unlocked based on the signal from the door lock motor and door unlock detection SW, and sends a signal to switch the condition from lock to unlock or vice versa, causing the door lock motor to operate. 2. Visual Confirmation of Lock or Unlock If all doors indicate that they are locked after the lock command, parking lights and taillights will flash once. If any door indicates that it is open after the unlock command, parking lights and taillights will flash twice. 3. Wireless Door Unlock Operation Pushing the unlock button (Transmitter) once, driver's door is unlocked. Furthermore, pushing the button again within 3 seconds, the other doors are unlocked. 4. Automatic Lock Operation With the ignition key not inserted into the ignition key cylinder (Unlock warning SW off) and all the doors completely closed, after pushing the button (Transmitter) to unlock all the doors, if a door is not opened within 30 seconds, all the doors will be automatically relocked. 5. Wireless Control Stop Function If a door is open (Door courtesy SW on), a signal is input from the door courtesy SW to the integration relay stopping wireless door lock or unlock. If the ignition key is in the ignition key cylinder (Unlock warning SW on), the unlock warning SW inputs a signal to the integration relay stopping wireless door lock or unlock. 6. Repeat Function In case an appropriate lock detection signal is not received after outputting a lock signal when pushing the lock button (Transmitter), 1 seconds later, the integration relay output the lock signal again. 7. Remote Panic Operation Panic will function when doors are locked or unlocked, open or closed. When the panic button (Transmitter) is pushed once, theft alarm sounds and headlights and taillights flash. Then, the panic or the unlock button (Transmitter) is pushed once more, sounding and flashing will stop. Panic will not function when ignition key is in ignition key cylinder. : Parts Location Code See Page A2 Code 32 (1ZZ–FE) D8 38 (*1) B6 40 (*2) D2 D3 40 (*2) 38 (*1) D4 40 (*2) D5 D11 38 (*1) D15 40 (*2) 38 (*1) D7 A D12 40 (*2) D6 B D16 40 (*2) See Page A 35 (2ZZ–GE) 40 (*2) J4 37 38 (*1) J6 37 40 (*2) J7 37 38 (*1) 40 (*2) 38 (*1) 40 (*2) J8 A J9 B 1 See Page 22 40 (*2) 38 (*1) 40 (*2) T2 37 40 (*2) U1 37 38 (*1) 40 (*2) Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) * 1 : w/ Side Airbag and/or Stereo Component Amplifier 38 (*1) 38 (*1) : Relay Blocks Code 37 33 (1ZZ–FE) J1 38 (*1) D10 38 (*1) Code I11 40 (*2) D9 36 38 (*1) See Page 38 (*1) * 2 : w/o Side Airbag and Stereo Component Amplifier 140 COROLLA (EM00H0U) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) IC 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) ID 25 Floor Wire and Instrument Panel J/B (Lower Finish Panel) IF IG IH 25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) IJ IK 24 3A 3B 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) 3C 4A : Connector Joining Wire Harness and Wire Harness Code EA1 See Page 42 (1ZZ–FE) 43 (2ZZ–GE) Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of the Engine Room R/B) IA2 IA5 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) 44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel) ID2 44 Instrument Panel Wire and Floor Wire (Left Kick Panel) IG1 45 Instrument Panel Wire and Instrument Panel No.3 Wire (Front Side of the Parking Brake Lever) II2 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) 45 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel) IL3 45 Floor Wire and Instrument Panel Wire (Right Kick Panel) IM1 45 Instrument Panel Wire and Floor Wire (Front Side of the Parking Brake Lever) IA6 IC1 IC2 IJ1 IJ3 BA1 BB1 BG1 46 (*1) 47 (*2) 46 (*1) 47 (*2) 46 (*1) Rear Door LH Wire and Floor Wire (Left Center Pillar) Rear Door RH Wire and Instrument Panel Wire (Right Center Pillar) Rear Door RH Wire and Floor Wire (Right Center Pillar) : Ground Points Code See Page Ground Points Location IE 44 Behind the Combination Meter IG 44 Right Kick Panel BH 46 (*1) 47 (*2) Under the Left Quarter Pillar * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 141 COROLLA (EM00H0U) TVIP System (IG) IG2 10A ECU–IG 9 IF 1 IH B–W R–B R 10A ECU–B B R I10 Ignition SW (A/T) R ST2 4 (M/T) 5 AM2 (BAT) R 6 IM II2 R (M/T) A 15A AM2 J2 Junction Connector 12 (A/T) 3 IA2 1 3 IM 5 2 1 IM 4 IF 4 P N 2 B B–W (A/T) B–R B–R II1 2 G 2 B B 4 J2 Junction Connector G S8 Starter Cut Relay B 1 (A/T) 3 (M/T) W–B W–B B B–R 10 IH 1 30A MAIN R–B 5 2 IA4 7 B–W R–B B–W B–R ST Relay A2 Park/Neutral Position SW 1 C8 Clutch Start SW 3 R 11 IL (A/T) A 8 1 TRIG S+B B 1 11 IA5 1 11 II2 B S3 Starter B (A/T) B B 1 1A (M/T) G3 Glass Breakage Sensor ECU FL MAIN 2. 0L W–B W–B W–B W–B W–B W–B W–B Battery W–B A A A A W–B IE J6 Junction Connector 142 COROLLA (EM00H0U) T3 TVIP ECU R–B B–R L W–B R–W DSWL HORN KSW 35 12 CTY DSWD 5 19 40 R–W 25 B–W E R 29 G–Y 11 L–B 21 R–W SRLY 2 IG IOUT IND +B1 10 11 ID2 R–B A J10 Junction Connector R–W B–W A 4 5 W–B 19 3A 11 3A Microphone 1 A 2 A R–W W–B 4 A Security 3 A S 4(A) Security Indicator 1 W (Shielded) G3 Glass Breakage Sensor ECU 2 U1 Unlock Warning SW GMIC L4 Luggage Compartment Light SW MIC W–B 6 GND W–B 3 IOUT 1 R–W L W–B W–B L–B R–W B–R R G–Y W–B W–B W–B W–B W–B A W–B A A W–B J7 Junction Connector IG 143 COROLLA (EM00H0U) 7 IC1 10 IC2 9 10 8 IJ3 5 7 8 W–R IJ3 10 6 5 7 3 IJ3 IJ1 W–B W–B 144 COROLLA (EM00H0U) I13 Interior Light 1 4A L–W 3 IG OFF ON 2 4A DOOR 9 R–W DMLP W 38 W–R LSWP W–B R–Y 18 L–B UL2 Detection W–R L–B LSWD D9 Door Key Lock and Unlock SW Front RH Door Unlock Detection SW Front RH L–B 6 Unlock G 6 3C G 5 3C Lock 37 W L–Y L–W T3 TVIP ECU W–B 7 W–B W 7 IC2 W 17 D8 Door Key Lock and Unlock SW Front LH Door Unlock Detection SW Front LH L–Y 6 IC2 L–Y 16 G UL3 Detection Unlock G 6 G 8 L2 W–B W–B HEAD W–B 8 R Y–B HAZD Lock 3 3C R Y–B 2 3C T2 Turn Signal Flasher Relay HAZ TVIP System (BAT) 15A DOME 2 1 IRSG 7 IC 28 4 IE G W 2 6 IE 1 1 IE 4 IF R R–W R–W R R G–Y G–Y ∗ 1 : w/ Stereo Component Amplifier ∗ 2 : w/o Stereo Component Amplifier (BAT) (BAT) 40A HEAD MAIN I11(A) Integration Relay 10A HORN 2 2 1 R B–W 1 TVSS 26 A DCTY PCTY P–DR 13 A 5 R B–W 6 1 1 1 1 4 IK 14 ID 15 ID R R–B R–Y 1 3 5 2 1 3 1 R–B R–Y (∗1) R–W (∗2) HORN Relay IL3 1 R–W 5 HEAD Relay 2 3 1 1 G–Y R–W (∗1) 1 ID R–W 3 IL R–W W 1 B R–Y 18 IA5 G–Y 1 H6 Horn 1 D7 Door Courtesy SW Rear RH 1 D6 Door Courtesy SW Rear LH 1 D5 Door Courtesy SW Front RH D4 Door Courtesy SW Front LH 4 IA2 H R 7 D2 Daytime Running Light Relay 6 H–LP 13 4A R–W R 12 4A G–Y 145 COROLLA (EM00H0U) TVIP System : Parts Location Code See Page A2 32 (1ZZ–FE) C8 36 D2 36 Code D5 40 (*2) 38 (*1) D6 I13 38 (*1) D8 34 (2ZZ–GE) 37 40 (*2) 38 (*1) 40 (*2) 33 (1ZZ–FE) S3 37 A 38 (*1) L4 32 (1ZZ–FE) I11 40 (*2) D7 37 I10 37 J10 40 (*2) H6 38 (*1) See Page J7 38 (*1) G3 40 (*2) Code 40 (*2) D9 38 (*1) D4 See Page D8 S4 35 (2ZZ–GE) A 37 38 (*1) S8 37 40 (*2) T2 37 40 (*2) J2 37 T3 37 38 (*1) J6 37 U1 37 : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) IC 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) ID 25 Floor Wire and Instrument Panel J/B (Lower Finish Panel) IE 25 Roof Wire and Instrument Panel J/B (Lower Finish Panel) IF IG 25 IH Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) IK IL 24 IM 1A 3A 3C 4A 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) : Connector Joining Wire Harness and Wire Harness Code See Page Joining Wire Harness and Wire Harness (Connector Location) IA2 IA4 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) 44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel) 44 Instrument Panel Wire and Floor Wire (Left Kick Panel) 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) 45 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel) 45 Floor Wire and Instrument Panel Wire (Right Kick Panel) IA5 IC1 IC2 ID2 II1 II2 IJ1 IJ3 IL3 * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 146 COROLLA (EM00H0U) : Ground Points Code See Page Ground Points Location IE 44 Behind the Combination Meter IG 44 Right Kick Panel 147 COROLLA (EM00H0U) Moon Roof (BAT) (IG) 30A POWER 10A GAUGE 2 5 1 M2 Moon Roof Control Relay and SW 3 2 2 IE 4 IF 10 IH 1 IE B W–B W–B W–B P/W Relay Open Close Up Down IG LS1 LS2 MTR+ MTR– 6 7 4 5 GND 8 R–L R G 6 1 2 LS2 M W–B W–B J6 Junction Connector W–B A M3 Moon Roof Motor and Limit SW W–B 3 W–B 4 W–B W–B A J7 Junction Connector IE IG 148 COROLLA (EM00H0U) W–B G–W 5 LS1 B 2 System Outline The moon roof can be operated when the ignition SW is turned to ON position. 1. Slide Open Operation The moon roof fully opens automatically by pressing the slide open button of the moon roof control SW once. If the moon roof control switch is pressed again when the moon roof is operating, the movement of the moon roof stops. The operation of slide open is not worked when the moon roof at tilt up position. 2. Slide Close Operation If you keep pressing the slide close button of the moon roof control SW when the moon roof is open, the moon roof closes half and stops the operation once. If you keep pressing the slide close once again, the moon roof fully closes. 3. Tilt Up Operation If you press the tilt up button of the moon roof control SW, the moon roof is tilted up. However, the moon roof is not tilted up when it is open 4. Tilt Down Operation If you press the tilt down button when the tilt up of the moon roof control SW is pressed, the moon roof is tilted down. : Parts Location Code See Page J6 37 J7 37 Code M2 See Page 39 (*1) 41 (*2) Code M3 See Page 39 (*1) 41 (*2) : Junction Block and Wire Harness Connector Code IE IF IH See Page Junction Block and Wire Harness (Connector Location) 25 Roof Wire and Instrument Panel J/B (Lower Finish Panel) 25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) : Ground Points Code See Page Ground Points Location IE 44 Behind the Combination Meter IG 44 Right Kick Panel * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 149 COROLLA (EM00H0U) ECT 5 AM2 5 IL B–W IG2 6 8 IK B–O B–O ST2 BR 6 IM J 2(A) Junction Connector H A H A BR 3 IM B A BR B A Y 15A AM2 F B J 2(A), J 3(B) Junction Connector B I10 Ignition SW R–W B–W B–W B–R BR 5 2 IA4 3 EA1 1 3 VC E2 M– VTA1 VTA2 1 6 4 (∗1) B W LG LG 1 Y 1 BR 5 M+ 2 R–W 1 8 D 3 D 28 A 18 A 17 B 4 B 3 B 21 A 31 A 1 20A EFI EFI Relay 2 30A MAIN 2 1 IA2 B–W 1 II1 B–W B–R R–W R–W 3 T6 Throttle Control Motor Throttle Position Sensor MREL 3 E2 BATT VC GEO1 M+ M– VTA1 2 1 E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module S1 SL S2 11 B 10 B 9 B L SLT– 12 B L–W B 1 FL MAIN 2. 0L SLT+ 13 B R–Y +B 1 D P B B 1 R–W 1 1 4 3 2 6 SLT+ SLT– S1 SL S2 Y B G 3 4B W 15A EFI2 W–B 1 GR 1 1A 2 Battery 1 4B B B 1 9 EA1 6 B II1 E1 Electronically Controlled Transmission Solenoid ED 150 COROLLA (EM00H0U) VTA2 B–O R–W B–O (BAT) ∗ 1 : Shielded ∗ 2 : w/ VSC 14 IC R–W R–W 15A STOP 2 S9 Stop Light SW 20 3C 10 IK 18 3C II1 5 IA7 6 IA7 4 IA7 TRC– 22 A 16 IA7 W 2 ENG– 23 A (∗2) II1 NEO 10 A 17 IA7 P–B G–W R–B 20 D 19 C 11 C TC STP W (∗2) L (∗2) (∗2) R–Y (∗2) R–W (∗2) B–W L W 19 A LG 4 4C LG–B 13 3C 11 3C THW 5 TRC+ 8 A L II1 ENG+ 9 A (∗2) 4 L II2 9 IK G–W E2 Engine Coolant Temp. Sensor 2 3 4C 8 R–B 1 IL 1 LL 3 (∗2) 13 2L 7 R–Y P–B 5 IC DL (∗2) R–B G–W BR NL 1 R–W RL (∗2) PL B–W 1 LG–B S 1(A), (B) Skid Control ECU with Actuator LG TC 13 RB L D1 Data Link Connector 3 2 A2 A/T Shift Lever Position SW 10 C 9 C 8 C R D 2 L 24 D ENG+ 25 D 17 D VSC+ 30 D NEO 31 D ENG– VSC– E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module E01 II1 A A C A C A W–B 4 B B J 4(A), J 5(B) Junction Connector A A 1 J 4(A) Junction Connector W–B 2 A10 O/D Main SW E02 7 A SPD ODLP 6 A 17 C 7 C LG 6 B V–W E03 2 B W–B W–B ME01 E1 5 A W–B W–B LG–B 7 B W–B E04 EC 35 B BR ODMS 29 C LG V–W W–B BR W–B 17 3A A IG A J7 Junction Connector W–B 11 3A EB EC 151 COROLLA (EM00H0U) ECT B–O (IG) R–W 10A GAUGE (BAT) 15A DOME 2 IG 2 22 3B 19 4C 16 3B 5 4 O/D OFF 10 (∗5) R–W (∗5) W–G II2 W–G (∗4) 4 (∗5) (∗4) W–G W–G 14 IA6 V–W C B 9 8 4C 9 4C J 4(A), J 5(B) Junction Connector R–W B A W–G 3 V–W : w/ VSC : w/o VSC : w/ VSC, w/ ABS : Except ∗4 LG 2 3 4 5 B A C9 Combination Meter ABS Speed Sensors II2 R–W 14 Speedometer 32 ∗ ∗ ∗ ∗ 20 3B R–W 4 IL (∗4) SPI 12 A (∗2) 18 B (∗3) W–G W RR– 19 A 45 B R RR+ 5 A 44 B Y RL– 6 A 16 B B RL+ 20 A 15 B W FR– 17 A 39 B B FR+ 3 A 40 B G FL– 4 A 9 B R FL+ 18 A 10 B 20 4C L–W B–O 7 IC R–W S 1(A), (B) Skid Control ECU with Actuator L–W L–W R–W 1 3 1 LG V–W BR (∗5) 2 V1 Vehicle Speed Sensor (Combination Meter) C A J 2(A), J 3(B) Junction Connector BR (∗5) C B EB 152 COROLLA (EM00H0U) System Outline Previous automatic transaxle have selected each gear shift using mechanically controlled throttle hydraulic pressure, governor hydraulic pressure and lock–up hydraulic pressure. The electronically controlled transmission, however, controls the line pressure and lock–up pressure etc. electrically, through the solenoid valve. The engine control module controls each solenoid valve based on the input signals from each sensor, which makes smooth driving possible by shift selection for each gear that is most appropriate to the driving conditions at that time. 1. Gear Shift Operation When driving, the engine warm up condition is input as a signal to TERMINAL THW of the engine control module from the engine coolant temp. sensor and the vehicle speed signal is input to TERMINAL SPD of the engine control module. At the same time, the throttle valve opening signal from the throttle position sensor is input to TERMINALS VTA1, VTA2 of the engine control module as throttle angle signal. Based on these signals, the engine control module selects the best shift position for the driving conditions and sends current to the electronically controlled transmission solenoid. 2. Stop Light SW Circuit If the brake pedal is depressed (Stop light SW on ) when driving in lock–up condition, a signal is input to TERMINAL STP of the engine control module, the engine control module operates and continuity to the lock–up solenoid is cut. 3. Overdrive Circuit ∗ Overdrive on When the engine is turned on from ignition off, the engine control module turns the O/D on. When the O/D main SW is pushed while the O/D is off, a signal is input into TERMINAL ODMS of the engine control module, and the O/D is turned on by the engine control module. In this case, the engine control module controls the gear shift according to the vehicle's driving condition, using the O/D range. At this time, the O/D off indicator light is off. ∗ Overdrive off When the O/D main SW is pushed while the O/D is on, a signal is input into TERMINAL ODMS of the engine control module, and the O/D is turned off. At this time, the current flows through the O/D off indicator light to TERMINAL ODLP of the engine control module. As a result, the O/D off indicator light turns on, and the engine control module controls the gear shift according to the vehicle's driving condition, without using the O/D range. : Parts Location Code See Page Code See Page Code See Page A2 32 (1ZZ–FE) E4 B 36 A10 36 E5 C 36 C9 36 E6 D 36 D1 36 E1 32 (1ZZ–FE) J2 A 37 32 (1ZZ–FE) J3 B 37 S9 37 34 (2ZZ–GE) J4 A 37 T6 33 (1ZZ–FE) 36 J5 B 37 V1 33 (1ZZ–FE) E2 E3 A I10 37 J7 37 A S1 B 33 (1ZZ–FE) 35 (2ZZ–GE) 33 (1ZZ–FE) 35 (2ZZ–GE) : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page IC 25 IG 25 IK IL 24 Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) IM 1A 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) 3A 3B 3C 4B 4C 153 COROLLA (EM00H0U) ECT : Connector Joining Wire Harness and Wire Harness Code EA1 See Page 42 (1ZZ–FE) 43 (2ZZ–GE) Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of the Engine Room R/B) IA2 IA4 IA6 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) IA7 II1 II2 : Ground Points Code EB EC ED IG See Page Ground Points Location 42 (1ZZ–FE) 43 (2ZZ–GE) 42 (1ZZ–FE) Left Side of the Cylinder Head 43 (2ZZ–GE) 42 (1ZZ–FE) 43 (2ZZ–GE) 44 Front Left Suspension Tower Right Kick Panel 154 COROLLA (EM00H0U) Memo 155 COROLLA (EM00H0U) Cruise Control for 1ZZ–FE B–W B–W R–W 5 AM2 (IG) IG2 6 ST2 10A GAUGE I10 Ignition SW R–W R–W 22 3B 16 3B R–W B 2 IG 6 IM R–W R–W R–W 1 1 R–W (A/T) R–W C B BATT FC +B 10 C 1 D 1 2 D 6 IA5 B L 2 1 20A EFI L L 1 1 (A/T) B 7 (M/T) 1 B A A2 Park/Neutral Position SW R–W 3 2 30A MAIN 2 3 D 2 L 1 B A (M/T) B–R EFI Relay 5 II2 J 4(A), J 5(B) Junction Connector 1 C13 Cruise Control Clutch SW R–W (M/T) B–W B–R 1 2 IA4 14 E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module 3 EA1 7 IA5 1 8 D MREL (∗3) R–W 3 IM (M/T) 20 3B R–W 19 3B B–W R–W 15A AM2 II1 B–W 3 1 IA2 1 3 4B (A/T) L B II1 W–B 15A EFI2 4 1 1A 2 1 4B 20 3C 1 FL MAIN 2. 0L B 17 3C B 18 3C 9 EA1 R–W Battery (∗3) B ED 156 COROLLA (EM00H0U) 6 II1 B–W B–O R–W R–W ∗ 1 : Shielded ∗ 2 : w/ VSC, w/ ABS ∗ 3 : Except ∗2 (BAT) 5 IL 8 IK 6 IL 12 IC 15A STOP R–W B–W 3 G–O 2 4 1 IL 13 3C 5 IC 11 3C 1 B–O G–O G–W G–W 19 IA7 G–W S9 Stop Light SW B–O 14 IC 9 D 12 C 19 C IGSW ST1– STP E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module M– M+ 4 B B 3 B W (∗1) VTA2 31 A LG VTA1 21 A LG Y VC 18 A BR E2 28 A G–Y BR CCS 24 C 6 4 1 2 VTA1 VTA2 M– M+ GE01 17 B Y F B Spiral Cable 3 ECC BR A A CCS CRUISE H A RES/ACC BR J 4(A), J 5(B) Junction Connector A B 2 B A B A 5 VC J 2(A) Junction Connector E2 3 BR SET/COAST T6 Throttle Control Motor Throttle Position Sensor 2 II1 J 2(A), J 3(B) Junction Connector 3 10 BR CANCEL C10 Combination SW R–W R–W (∗3) (∗3) EB 157 COROLLA (EM00H0U) Cruise Control for 1ZZ–FE B–O B–O R–W R–W W–G (∗2) D1 Data Link Connector 3 12 A (∗4) 18 B (∗5) S 1(A), (B) Skid Control ECU with Actuator SP1 W L TRC– 22 A (∗4) (∗4) ENG– 23 A (∗4) R–W B–W NEO 10 A (∗4) TRC+ 8 A R–Y ENG+ 9 A (∗4) RR– 19 A 45 B (∗5) (∗4) RR+ 5 A 44 B W RL– 6 A 16 B R B RL+ 20 A 15 B Y G FR– 17 A 39 B B 3 A 40 B R FR+ 4 A 9 B P–B FL– 18 A 10 B W FL+ TC 13 3 4C 5 IA7 ABS Speed Sensors 6 IA7 4 IA7 16 IA7 17 IA7 E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module 20 D 25 D ENG+ ENG– W 31 D VSC– 5 A 7 B 17 C 13 C G–R PI 35 B V–W SPD 1 (∗4) L (∗4) (∗4) R–Y E04 30 D W–B E1 NEO BR W–B EC 17 D VSC+ W–B 6 A W–B E02 7 A W–B E01 6 B W–B E03 2 B (∗4) R–W 24 D TC ME01 (∗4) P–B B–W 4 4C II1 C A B B V–W J 4(A) Junction Connector C A J 4(A), J 5(B) Junction Connector G–R W–B W–B W–B W–B A A A A BR R–W R–W (∗3) A J7 Junction Connector EC IG 158 COROLLA (EM00H0U) BR (∗3) EB B–O (BAT) R–W W–G 15A DOME (∗2) 2 L–W 1 7 IC R–W 32 4 L–W B–O 4 IL L–W 20 4C Speedometer L–W (∗2) W–G 5 19 4C W–G (∗2) W–G (∗5) G–R 10 9 W–G 23 V–W C9 Combination Meter CRUISE 14 IA6 8 4C V–W J 2(A), J 3(B) Junction Connector 9 4C II2 BR 4 (∗3) C A (∗3) : w/ VSC, w/ ABS : Except ∗2 : w/ VSC : w/o VSC (∗5) W–G 3 2 (∗3) R–W 2 3 4 5 BR 1 ∗ ∗ ∗ ∗ (∗3) R–W C B V1 Vehicle Speed Sensor (Combination Meter) EB 159 COROLLA (EM00H0U) Cruise Control for 1ZZ–FE System Outline The cruise control system is a constant vehicle speed controller in which control of the switch on the instrument panel makes it possible to automatically adjust the opening of the engine throttle valve without depressing of the accel pedal. 1. Set Operation When the CRUISE SW is turned on and the SET SW is pushed with the vehicle speed within the set limit (Approx. 40 km/h, 25 mph to 200 km/h, 124 mph), a signal is input to TERMINAL CCS of the engine control module, and the vehicle speed at the time the SET SW is released is memorized in the ECU as the set speed. 2. Set Speed Control During cruise control driving, the ECU compares the set speed memorized in the ECU with the actual vehicle speed input into TERMINAL SPD of the engine control module from the combination meter, and controls the throttle control motor to maintain the set speed. When the actual speed is lower than the set speed, the ECU causes the current to the throttle control motor to flow from TERMINAL M+ of the engine control module to TERMINAL 2 of the throttle control motor to TERMINAL 1 to TERMINAL M– of the engine control module. As a result, the motor in the throttle control motor is rotated to open the throttle valve to increase the vehicle speed. When the actual driving speed is higher than the set speed, the current to the throttle control motor flows from TERMINAL M– of the ECU to TERMINAL 1 of the throttle control motor to TERMINAL 2 to TERMINAL M+ of the engine control module. This causes the motor in the throttle control motor to rotate to close the throttle valve to decrease the vehicle speed. 3. Coast Control During cruise control driving, while the COAST SW is on, the throttle control motor is rotated to close the throttle valve and decrease the driving speed. The vehicle speed when the COAST SW is turned off is memorized, and the vehicle continues at the new set speed. 4. Accel Control During cruise control driving, while the ACC SW is turned on, the throttle control motor is rotated to open the throttle valve and increase the driving speed. The vehicle speed when the ACC SW is turned off is memorized and the vehicle continues at the new set speed. 5. Resume Control If the vehicle speed is approximately 40 km/h (25 mph) or above after canceling the set speed with the CANCEL SW, pushing the RES SW will cause the vehicle to resume the speed set before the cancellation. 6. Manual Cancel Mechanism If any of the following signals is input during cruise control travelling, the cruise control is cancelled. ∗ Depressing the clutch pedal (Cruise control clutch SW off). "Signal is not input to TERMINAL FC of the ECU" ∗ Placing the shift lever to positions except "D" position (Park/Neutral position SW except "D" position) (A/T), depressing the brake pedal (Stop light SW on) (M/T). "Signal input to TERMINAL STP of the ECU" ∗ Pushing the CANCEL SW (CANCEL SW on). "Signal input to TERMINAL CCS of the ECU" ∗ Pushing the CRUISE SW off "signal input to TERMINAL CCS of the ECU". 7. Tap–Up Control Function When the difference between the actual vehicle speed and the set speed is less than 5 km/h (3 mph), the set speed can be increased 1.6 km/h (1 mph) each time by operating the RES/ACC SW quickly within 0.5 seconds. 8. Tap–Down Control Function When the difference between the actual vehicle speed and the set speed is less than 5 km/h (3 mph), the set speed can be lowered 1.6 km/h (1 mph) each time by operating the SET COAST SW quickly within 0.5 seconds. 9. Auto Cancel Function A) If any of the following operating conditions occurs during cruise control operation, the set speed is erased and the cruise control is released, (CRUISE SW turns off). When this occurs, the ignition SW must be turned off once before the CRUISE SW will turn on. ∗ When abnormality is found in the stop light SW input circuit. ∗ When abnormality is found in the cancel circuit. B) If any of the following operating conditions occurs during cruise control operation, the set speed is erased and the cruise control is released. (CRUISE SW turn off). When this occurs, the cancel state is cleared as the CRUISE SW will turn on again. ∗ When abnormality is found in electronic throttle parts. ∗ Open circuit in the stop light SW. ∗ Momentary interruption of vehicle speed signal. ∗ Short circuit in the stop light SW. C) If any of the following conditions occurs during cruise control operation, the set speed is erased and the cruise control is released. (The power to the magnetic clutch is cut off until the SET SW is "ON" again.) ∗ When power to the cruise control system is momentarily cut off. 160 COROLLA (EM00H0U) 10. Overdrive Control Function The overdrive control may be cancelled if the vehicle travels on the slope during cruise control travelling. After the overdrive control has been cancelled it is decided that the slope is finished, the vehicle returns to the overdrive control mode again. : Parts Location Code See Page Code A2 32 (1ZZ–FE) E5 E6 See Page C 36 D 36 Code See Page J7 37 C9 36 C10 36 C13 36 J2 A 37 S9 37 D1 36 J3 B 37 T6 33 (1ZZ–FE) V1 33 (1ZZ–FE) I10 37 E3 A 36 J4 A 37 E4 B 36 J5 B 37 S1 A 33 (1ZZ–FE) B 33 (1ZZ–FE) : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page IC 25 IG 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) IK IL Junction Block and Wire Harness (Connector Location) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 24 IM 1A 3B 3C 4B 4C 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) : Connector Joining Wire Harness and Wire Harness Code EA1 See Page Joining Wire Harness and Wire Harness (Connector Location) 42 (1ZZ–FE) Engine Wire and Engine Room Main Wire (Inside of the Engine Room R/B) 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) IA2 IA4 IA5 IA6 IA7 II1 II2 : Ground Points Code EB See Page Ground Points Location 42 (1ZZ–FE) Left Side of the Cylinder Head ED 42 (1ZZ–FE) Front Left Suspension Tower IG 44 Right Kick Panel EC 161 COROLLA (EM00H0U) Cruise Control for 2ZZ–GE (BAT) 15A DOME IG2 6 ST2 10A GAUGE 2 1 B–W B 2 IG L–W I10 Ignition SW 5 IL 6 IM R–W 7 IC R–W 5 AM2 (IG) 20 4C 22 3B L–W 16 3B 8 IK 15A AM2 L 4 IL 19 4C L–W R–W 32 5 4 R–W B–O 19 3B 7 IA5 R–W CRUISE B–R Speedometer 3 IM C13 Cruise Control Clutch SW 1 B–R 2 IA4 9 L V–W C9 Combination Meter W–G 10 6 IA5 8 4C 1 7 4C W–G 14 IA6 B 1 1A L W–G 30A MAIN 2 23 G–R 2 1 S 1(B) Skid Control ECU with Actuator 18 B SP1 FL MAIN 2. 0L RR– 45 B W RR+ 44 B R RL– 16 B Y RL+ 15 B B FR– 39 B W B FR+ 40 B G FL– 9 B R V–W FL+ 10 B Battery ABS Speed Sensors V–W G–R 162 COROLLA (EM00H0U) (IG) D1 Data Link Connector 3 E5 Engine Control Module (BAT) 10A ECU–IG 15A STOP TC IDLO 7 13 14 IC B–W 5 3B 2 4C 6 3B B–W R–W P–B 3 4C P–B L–W 9 IF 10 2 13 IDL CCS MC 7 MO 15 L STP– 8 G–O 11 +B R–G G–R PI 5 V–W SPD 12 TC R–L D 12 IA5 4 IA5 13 IA5 GND 3 16 W–B C14 Cruise Control ECU 4 G–W L L G–O 12 3C 2 S9 Stop Light SW 3 R–L R–G W–B 3 2 4 1 Spiral Cable 2 R–Y 3 CCS ECC 13 3C G–W G–Y R–W 1 IL 2 1 3 MO MC L RES/ACC SET/COAST G–W CRUISE 5 IC M GND CANCEL 3 IA5 W–B V–W 21 4B W–B C10 Combination SW 12 4B 4 W–B C4 Cruise Control Actuator W–B W–B J6 Junction Connector W–B G–R A IE 163 COROLLA (EM00H0U) Cruise Control for 2ZZ–GE System Outline The current is applied at all times through the STOP fuse to TERMINAL 2 of the stop light SW. With the ignition SW turned to on, the current flows through the MAIN fuse to AM2 fuse to ignition SW (IG2) to TERMINAL 32 of the combination meter and the current through the ECU–IG fuse flows to TERMINAL 2 of the cruise control ECU. When the ignition SW is on and the CRUISE SW is turned on, a signal is input from TERMINAL 2 of the cruise control SW to TERMINAL 11 of the cruise control ECU. As a result, the cruise control ECU functions and the current flows from the ECU–IG fuse to TERMINAL 2 of the cruise control ECU to TERMINAL 16 of the cruise control ECU to GROUND, and the cruise control system is in a condition ready for operation. At the same time, the current flows through the MAIN fuse to AM2 fuse to ignition SW (IG2) to TERMINAL 32 of the cruise indicator light to TERMINAL 23 to TERMINAL 5 of the cruise control ECU to TERMINAL 16 to GROUND, causing the cruise indicator light to light up, indicating that cruise control is ready for operation. 1. Set Operation When the CRUISE SW is turned on and the SET SW is pushed with the vehicle speed within the set limit (Approx. 40 km/h, 25 mph to 200 km/h, 124 mph), a signal is input to TERMINAL 11 of the cruise control ECU, and the vehicle speed at the time the SET SW is released is memorized in the ECU as the set speed. 2. Set Speed Control During cruise control driving, the ECU compares the set speed memorized in the ECU with the actual vehicle speed input into TERMINAL 12 of the cruise control ECU from the combination meter, and controls the cruise control actuator to maintain the set speed. When the actual speed is lower than the set speed, the ECU causes the current to the cruise control actuator to flow from TERMINAL 15 of the cruise control ECU to TERMINAL 1 of the cruise control actuator to TERMINAL 2 to TERMINAL 7 of the cruise control ECU. As a result, the motor in the cruise control actuator is rotated to open the throttle valve and the throttle cable is pulled to increase the vehicle speed. When the actual driving speed is higher than the set speed, the current to the cruise control actuator flows from TERMINAL 7 of the ECU to TERMINAL 2 of the cruise control actuator to TERMINAL 1 to TERMINAL 15 of the cruise control ECU. This causes the motor in the cruise control actuator to rotate to close the throttle valve and return the throttle cable to decrease the vehicle speed. 3. Coast Control During cruise control driving, while the COAST SW is on, the cruise control actuator returns the throttle cable to close the throttle valve and decrease the driving speed. The vehicle speed when the COAST SW is turned off is memorized, and the vehicle continues at the new set speed. 4. Accel Control During cruise control driving, while the ACC SW is turned on, the cruise control actuator pulls the throttle cable to open the throttle valve and increase the driving speed. The vehicle speed when the ACC SW is turned off is memorized and the vehicle continues at the new set speed. 5. Resume Control If the vehicle speed is approximately 40 km/h (25 mph) or above after canceling the set speed with the CANCEL SW, pushing the RES SW will cause the vehicle to resume the speed set before the cancellation. 6. Manual Cancel Mechanism If any of the following operations occurs during cruise control operation, the magnetic clutch of the actuator turns off and the motor rotates to close the throttle valve and the cruise control is released. ∗ Depressing the clutch pedal (Cruise control clutch SW off). "Signal is not input to TERMINAL 4 of the ECU" ∗ Depressing the brake pedal (Stop light SW on). "Signal input to TERMINAL 3 of the ECU" ∗ Pushing the CANCEL SW (CANCEL SW on). "Signal input to TERMINAL 1 of the ECU" ∗ Pushing the CRUISE SW off "signal input to TERMINAL 1 of the ECU". 7. Tap–Up Control Function When the difference between the actual vehicle speed and the set speed is less than 5 km/h (3 mph), the set speed can be increased 1.6 km/h (1 mph) each time by operating the RES/ACC SW quickly within 0.5 seconds. 8. Tap–Down Control Function When the difference between the actual vehicle speed and the set speed is less than 5 km/h (3 mph), the set speed can be lowered 1.6 km/h (1 mph) each time by operating the SET COAST SW quickly within 0.5 seconds. 164 COROLLA (EM00H0U) 9. Auto Cancel Function A) If any of the following operating conditions occurs during cruise control operation, the set speed is erased, current flow to the magnetic clutch is stopped and the cruise control is released, (CRUISE SW turns off). When this occurs, the ignition SW must be turned off once before the CRUISE SW will turn on. ∗ When abnormality is found in the stop light SW input circuit. ∗ When abnormality is found in the cancel circuit. B) If any of the following operating conditions occurs during cruise control operation, the set speed is erased, current flow to the magnetic clutch is stopped and the cruise control is released. (CRUISE SW turn off). When this occurs, the cancel state is cleared as the CRUISE SW will turn on again. ∗ Over current to transistor driving the motor or the magnetic clutch. ∗ Open circuit in the stop light SW. ∗ Momentary interruption of vehicle speed signal. ∗ Short circuit in the stop light SW. C) If any of the following conditions occurs during cruise control operation, the set speed is erased and the cruise control is released. (The power to the magnetic clutch is cut off until the SET SW is "ON" again.) ∗ When power to the cruise control system is momentarily cut off. : Parts Location Code See Page Code See Page C4 34 (2ZZ–GE) C14 36 C9 36 D1 36 C10 36 E5 36 C13 36 I10 37 Code See Page J6 S1 37 B S9 35 (2ZZ–GE) 37 : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code IC IF IG See Page 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) 25 IK IL Junction Block and Wire Harness (Connector Location) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 24 IM 1A 3B 3C 4B 4C 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) : Connector Joining Wire Harness and Wire Harness Code See Page Joining Wire Harness and Wire Harness (Connector Location) IA4 IA5 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) IA6 : Ground Points Code IE See Page 44 Ground Points Location Behind the Combination Meter 165 COROLLA (EM00H0U) ABS, TRAC, VSC and Tire Pressure Warning System (IG) 10A GAUGE 2 IG B B R–W R–W B 5 AM2 B–W IG2 6 ST2 22 3B 6 IM 20 3B B I10 Ignition SW 1 EB1 B–W 16 3B 15A AM2 R–W 5 IL 1 B–O B–R B B 8 IK 3 IM 1 4 A 2 C 9(A), C16(B) Combination Meter 32 A 2 VSC Slip 30A MAIN 100A ALT 1 1 1A 35 A B BR 1 A 5 II2 37 A 36 A 2 B 3 B 17 IA5 BR FL MAIN 2. 0L 29 A R–W 1 Brake 2 R–W 2 ABS 1 1 Tire Pressure 1 30A ABS NO. 1 B–R 2 IA4 50A ABS NO. 2 V C C B2 Brake Fluid Level Warning SW Battery J3 Junction Connector W 1 R W–R EB W–B BR 2 ED 166 COROLLA (EM00H0U) LG (BAT) 15A DOME 2 R 1 B R B B 3 2 J4 Junction Connector 20 4C B R–W L–W B B–W 2 4 IL 31 A +BS 2 14 A 2 A 15 A 45 A MR BM R+ VSCW IND BRL WA WTIR W R W–R LG 14 IA6 5 IA5 2 IA7 13 IA7 16 IA5 5 IA6 14 IA5 R W–R LG 26 A W 29 A V 44 A V 34 A R 36 A R L–R TSI 7 A W–G L–R SP1 12 A W–G 40 A D L–R D L–R C 9(A), C16(B) Combination Meter Speedometer P 6 7 EA1 2 2 2 S 1(A) Skid Control ECU with Actuator J1 Junction Connector L–W 2 PL 5 A 38 A A2 A/T Shift Lever Position SW 19 4C 1 3 2 MRF R–W B 5 R II2 1 L 14 2 B–R 7 IC 5 2 B L–W R–W ABS MTR CUT Relay 2 ABS MTR Relay R–W 9 A W–G R V W R W–R LG 167 COROLLA (EM00H0U) ABS, TRAC, VSC and Tire Pressure Warning System D2 Daytime Running Light Relay (BAT) 15A STOP BRK PKB 10 11 P3 Parking Brake SW R–W R–W R–B E6 Engine Control Module 14 IC 1 25 31 24 30 NEO 17 R–Y ENG– L ENG+ B–W VSC– W S9 Stop Light SW VSC+ R–W 2 6 IA7 17 IA7 5 IA7 16 IA7 4 IA7 1 G–W R–W W B–W L R–Y R–W 27 A 8 A 22 A 9 A 23 A 10 A 28 A RR+ RR– INIT 41 A 1 IB1 2 IB1 3 IB1 4 IB1 10 IA5 1 BC1 1 BD1 V–W V–W 19 A W 5 A W W Y W W–B 8 T7 Tire Pressure Warning Standardization SW RL– 6 A R W 4 EB1 RL+ 20 A R 17 A PKB Y 3 A NEO S 1(A) Skid Control ECU with Actuator B 4 A B FR– 18 A G FR+ 1 A R FL– 32 A W–L FL+ ENG– ENG+ W–B GND2 TRC– B TRC+ STP GND1 15 IA5 1 1 W–B 2 A20 ABS Speed Sensor Rear RH 2 A19 ABS Speed Sensor Rear LH 2 A4 ABS Speed Sensor Front RH 1 2 BD1 B 2 BC1 B W–B 1 A3 ABS Speed Sensor Front LH 5 2 14 4B W–B 21 4B A J6 Junction Connector IE EA 168 COROLLA (EM00H0U) (IG) (BAT) D1 Data Link Connector 3 10A ECU–B B–W CANL 14 W B W B B E B E B B 6 3B 6 1 IH P 1 3B L–R B–W 5 3B CANH W L–R SIL 7 2 3B GR B–W 2 B–W WFSE 15 9 IF V6 VSC Warning Buzzer 13 IC 12 R–B TS B–W B 10A ECU–IG Y–B 1 11 IA6 14 IA7 4 IA6 L–R 2 EB1 15 IA7 B–O GR P 46 A 30 A 24 A 42 A BZ TS L–R B–W 3 EB1 CSW D/G CANL CANH B 3 IA7 18 IA7 7 IA7 E R–Y W 11 A W 25 A R–Y 43 A J11 Junction Connector T8 Traction Off SW 9 E B 3 1 CANH BAT IG1 W–B 2 GND 1 3 CANH 5 IG W–B 22 3A S12 Steering Sensor W–B W–B ESS 2 CANL Y1 Yaw Rate Sensor R–B 10 B–W B 9 CANL B–W W W–B 6 11 3A W–B S 1(A) Skid Control ECU with Actuator 13 A WFSE B–W IG1 A J7 Junction Connector IG 169 COROLLA (EM00H0U) ABS, TRAC, VSC and Tire Pressure Warning System System Outline 1. ABS Operation If the brake pedal is depressed suddenly, the ABS controls the hydraulic pressure of the wheel cylinders for all the four wheels to automatically avoid wheel locking and ensure the directional and steering stability of the vehicle. If the brake pedal is depressed suddenly, the skid control ECU controls the solenoids in the actuators using the signals from the sensors to move the brake fluid to the reservoir in order to release the braking pressure applied to the wheel cylinder. If the skid control ECU detects that the fluid pressure in the wheel cylinder is insufficient, the ECU controls the solenoids in the actuators to increase the braking pressure. 2. Traction Control Operation The traction control system controls the engine torque, the hydraulic pressure of the driving wheel cylinders, slipping of the wheels which may occur at start or acceleration of the vehicle, to ensure an optimal driving power and vehicle stability corresponding to the road conditions. 3. VSC Operation Unexpected road conditions, vehicle speed, emergency situation, and any other external factors may cause large under– or over–steering of the vehicle. If this occurs, the VSC system automatically controls the engine power and wheel brakes to reduce the under– or over–steering. To reduce large over–steering : If the VSC system determines that the over–steering is large, it activates the brakes for the outer turning wheels depending on the degree of the over–steering to produce the moment toward the outside of the vehicle and reduce the over–steering. To reduce large under–steering : If the VSC system determines that the under–steering is large, it controls the engine power and activates the rear wheel brakes to reduce the under–steering. Traction off SW The traction off SW is used to stop the TRAC function. After the engine is started, the TRAC system is stopped (Turned off) and the traction off indicator light lights up. When the traction off SW is pressed again, the TRAC system enters the stand–by mode. If the engine is stopped and restarted, the TRAC system enters the stand–by mode regardless of the traction off SW. VSC indicator light If an error occurs in the VSC system, the VSC indicator lights up to warn the driver. 4. Mutual System Control To efficiently operate the VSC system at its optimal level, the VSC system and other control systems are mutually controlled while the VSC system is being operated. Engine fuel injecting control The engine power does not interfere with the VSC brake control by controlling the opening of the fuel injecting and reducing the engine output. Engine control and electronically controlled transmission control The strong engine braking force does not interfere with the braking force control of the VSC system by turning off the accel. and reducing changes in the driving torque at shift–down. VSC system operation indication The slip indicator light flashes and the buzzer sounds intermittently to warn the driver that the current road is slippery, while the VSC system is being operated. 5. Fail Safe Function If an error occurs in the skid control ECU, sensor signals, and/or actuators, the skid control ECU inhibits the brake actuator control and inputs the error signal to the engine control module. According to the error signal, the brake actuator turns off the solenoid and the engine control module rejects any electronically controlled fuel injection request from the VSC system. As a result, the vehicle functions without the ABS, TRC, and VSC systems. 170 COROLLA (EM00H0U) : Parts Location Code See Page A2 A3 A4 A19 Code 32 (1ZZ–FE) C9 32 (1ZZ–FE) C16 See Page J7 37 B 36 J11 37 D1 36 P3 37 32 (1ZZ–FE) D2 36 34 (2ZZ–GE) E6 36 38 (*1) I10 37 S9 37 33 (1ZZ–FE) S12 37 J1 38 (*1) B2 Code 36 34 (2ZZ–GE) 40 (*2) A20 See Page A S1 A 33 (1ZZ–FE) 35 (2ZZ–GE) 35 (2ZZ–GE) T7 37 40 (*2) J3 37 T8 37 32 (1ZZ–FE) J4 37 V6 37 34 (2ZZ–GE) J6 37 Y1 37 : Relay Blocks Code See Page Relay Blocks (Relay Block Location) 1 22 Engine Room R/B (Engine Compartment Left) 2 23 ABS R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code IC See Page 25 Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) IF IG 25 IH Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) IK IL 24 IM 1A 3A 3B 4B 4C 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) : Connector Joining Wire Harness and Wire Harness Code EA1 EB1 See Page 42 (1ZZ–FE) 43 (2ZZ–GE) Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of the Engine Room R/B) 42 (1ZZ–FE) Engine Room Main Wire and Engine Room Main Wire (Front Right Fender) 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) IB1 44 Engine Room Main Wire and Floor Wire (Cowl Side Panel LH) II2 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) IA4 IA5 IA6 IA7 BC1 BD1 46 (*1) 47 (*2) 46 (*1) 47 (*2) Skid Control Sensor Wire LH and Floor Wire (Quarter Wheel House LH) Skid Control Sensor Wire RH and Floor Wire (Quarter Wheel House RH) * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 171 COROLLA (EM00H0U) ABS, TRAC, VSC and Tire Pressure Warning System : Ground Points Code EA EB ED See Page 42 (1ZZ–FE) 43 (2ZZ–GE) 42 (1ZZ–FE) 43 (2ZZ–GE) 42 (1ZZ–FE) 43 (2ZZ–GE) Ground Points Location Front Right Fender Left Side of the Cylinder Head Front Left Suspension Tower IE 44 Behind the Combination Meter IG 44 Right Kick Panel 172 COROLLA (EM00H0U) Memo 173 COROLLA (EM00H0U) Multiplex Communication System – CAN S 1(A) Skid Control ECU with Actuator W B E B J11 Junction Connector E B W B B B 10 CANH S12 Steering Sensor B 9 6 E B CANL CANH B W 7 IA7 CANL 14 W 18 IA7 W E CANH 11 A 174 COROLLA (EM00H0U) 2 CANL 3 CANH Y1 Yaw Rate Sensor CANL 25 A D1 Data Link Connector 3 System Outline Multiplex communication system (CAN) uses a serial communication protocol and communicates with a differential voltage. In this network system, TERMINALS CANH and CANL are used for communication between the ECUs and sensors, and excellent data communication speed and communication error detecting facility are provided. This system is working for the following systems: ∗ ABS (w/ VSC) ∗ TRAC ∗ VSC : Parts Location Code See Page D1 36 J11 37 Code S1 See Page A Code See Page 33 (1ZZ–FE) S12 37 35 (2ZZ–GE) Y1 37 : Connector Joining Wire Harness and Wire Harness Code IA7 See Page 44 Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) 175 COROLLA (EM00H0U) ABS and Tire Pressure Warning System without VSC (IG) (BAT) 10A GAUGE 5 AM2 IG2 6 15A DOME B–W 2 ST2 B 2 IG 1 L–R I10 Ignition SW 6 IM L–W 9 L–W 6 L–W L–W A2 A/T Shift Lever Position SW 8 IK 15A AM2 L–R 5 IL 7 IC 7 EA1 NL PL L–W R–W 3 IM R–W 2 2 IA4 J4 Junction Connector 36 B L–W B–R 4 IL B R–W B B–R 22 3B 14 N 20 4C S 1(B) Skid Control ECU with Actuator II2 TSI 19 4C R 4 30A MAIN 34 B L–W B–O 2 20 3B R–W 16 3B R–W 1 5 BR 1 R 35 5 IA5 B R–W Brake 1 1A ABS Tire Pressure 1 C9 Combination Meter Speedometer 32 37 36 BR C 9 38 R II2 R–W 5 1 W–G J3 Junction Connector C R W–R 2 ED LG BR W–B Battery 29 17 IA5 B2 Brake Fluid Level Warning SW FL MAIN 2. 0L EB 176 COROLLA (EM00H0U) (BAT) 30A ABS NO. 1 15A STOP 40A ABS NO. 2 2 D1 Data Link Connector 3 TS 2 TC 12 1 10 7 L–R 3 4C 2 3B GR R–W L–R 1 2 EA1 2 L–R 12 IA6 4 IA6 +BM R–W 31 B +BS L–R 2 B STP P–B 14 B IG1 15 IA5 GR 46 B P P–B L R 11 IA6 L–R 6 B 1 3B 1 G–W D 1 4C S9 Stop Light SW J1 Junction Connector B–W L–R D PKB 11 1 P–B 14 IC 13 IC BRK SIL 13 P3 Parking Brake SW 10A ECU–IG D2 Daytime Running Light Relay (BAT) R–B (BAT) R–W (IG) 20 B 21 B 13 B 23 B TS TC D/G PKB S 1(B) Skid Control ECU with Actuator 1 1 RR+ W 4 IB1 1 BD1 2 Y 1 W 1 BC1 2 1 2 BD1 B B W R 3 IB1 R Y 2 IB1 B 1 IB1 2 BC1 W–G RR– 45 B B 44 B A20 ABS Speed Sensor Rear RH 2 RL– 16 B A19 ABS Speed Sensor Rear LH W–B 2 A4 ABS Speed Sensor Front RH 5 A3 ABS Speed Sensor Front LH T7 Tire Pressure Warning Standardization SW V–W W–B LG W–R R W–G 8 RL+ 15 B W 14 IA5 W 5 IA6 FR– 39 B B 16 IA5 FR+ 40 B G 14 IA6 FL– 9 B V–W 10 IA5 FL+ 10 B R INIT 41 B W–B GND1 1 B W–B GND2 32 B LG WTIR 33 B W–R WA 17 B R BRL 43 B W–G SP1 18 B 14 4B R W–R W–B 21 4B LG A J6 Junction Connector EA IE 177 COROLLA (EM00H0U) ABS and Tire Pressure Warning System without VSC System Outline ABS is a brake system designed to improve the operating ability and securing the stability of the vehicle by preventing the lock–up of the vehicle by controlling the wheel cylinder pressure of all the four wheels at the time of sudden braking. 1. Input Signals (1) Speed sensor signal The speed of the wheels is detected and input to TERMINALS FL+, FR+, RL+, and RR+ of the skid control ECU and actuator. (2) Stop light SW signal A signal is input to TERMINAL STP of the skid control ECU with actuator when brake pedal is depressed. 2. System Operation When the wheels are locked–up, the solenoid inside the actuator is controlled by the signal from the skid control ECU with actuator, and the brake fluid in the wheel cylinder will flow through the reservoir and reduce the hydraulic pressure. While the ABS is in operation, as the skid control ECU with actuator always outputs the operation signal to the pump inside the actuator, and the brake fluid stored inside the reservoir will be sucked up by the pump inside the actuator and returned to the master cylinder. When the hydraulic pressure of the wheel cylinder is decompressed or increased until the necessary hydraulic pressure, the solenoid inside the actuator is controlled by the control signal from the skid control ECU with actuator and as a result, hydraulic pressure of the wheel cylinder will be closed at both the master cylinder and reservoir sides routes, and the hydraulic pressure of the wheel cylinder will be in the hold condition. If increase of the hydraulic pressure volume of the wheel cylinder becomes necessary, the control signals from the skid control ECU with actuator control the solenoid inside the actuator, to resume to the normal condition. Thus the brake fluid of the master cylinder will be sent to the wheel cylinder and will increase the hydraulic pressure of the wheel cylinder. At this time, in the case that the brake fluid is left in the reservoir, it will be sucked up by the pump inside the actuator and will be sent to the wheel cylinder. : Parts Location Code See Page A2 Code 32 (1ZZ–FE) B2 32 (1ZZ–FE) A3 A4 A19 Code See Page J4 37 34 (2ZZ–GE) J6 37 34 (2ZZ–GE) C9 36 P3 37 32 (1ZZ–FE) D1 36 34 (2ZZ–GE) D2 36 38 (*1) I10 37 S9 37 33 (1ZZ–FE) T7 37 40 (*2) J1 38 (*1) A20 See Page 32 (1ZZ–FE) 40 (*2) J3 S1 B 33 (1ZZ–FE) 35 (2ZZ–GE) 35 (2ZZ–GE) 37 : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page IC 25 IG 25 IK IL 24 Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) IM 1A 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 3B 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) 4B 4C * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 178 COROLLA (EM00H0U) : Connector Joining Wire Harness and Wire Harness Code EA1 See Page 42 (1ZZ–FE) 43 (2ZZ–GE) Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of the Engine Room R/B) IA4 IA5 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) IB1 44 Engine Room Main Wire and Floor Wire (Cowl Side Panel LH) II2 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) IA6 BC1 BD1 46 (*1) 47 (*2) 46 (*1) 47 (*2) Skid Control Sensor Wire LH and Floor Wire (Quarter Wheel House LH) Skid Control Sensor Wire RH and Floor Wire (Quarter Wheel House RH) : Ground Points Code EA EB ED IE See Page 42 (1ZZ–FE) 43 (2ZZ–GE) 42 (1ZZ–FE) 43 (2ZZ–GE) 42 (1ZZ–FE) 43 (2ZZ–GE) 44 Ground Points Location Front Right Fender Left Side of the Cylinder Head Front Left Suspension Tower Behind the Combination Meter * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 179 COROLLA (EM00H0U) Memo 180 COROLLA (EM00H0U) SRS NOTICE: When inspecting or repairing the SRS, perform service in accordance with the following precautionary instructions and the procedure, and precautions in the Repair Manual applicable for the model year. D Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most important source of information when troubleshooting. When troubleshooting the SRS, always inspect the DTCs before disconnecting the battery. D Work must be started more than 90 seconds after the ignition SW is turned to the "LOCK" position and the negative (–) terminal cable is disconnected from the battery. (The SRS is equipped with a back–up power source so that if work is started within 90 seconds from disconnecting the negative (–) terminal cable of the battery, the SRS may deploy.) D When the negative (–) terminal cable is disconnected from the battery, the memory of the clock and audio system will be cleared. So before starting work, make a record of the contents in the audio memory system. When work is finished, reset the audio systems as they were before and adjust the clock. Some vehicles have power tilt steering, power telescopic steering, power seat and power outside rear view mirror which are all equipped with memory function. However, it is not possible to make a record of these memory contents. So when the work is finished, it will be necessary to explain it to your customer, and ask the customer to adjust the features and reset the memory. To avoid erasing the memory in each system, never use a back–up power supply from outside the vehicle. D Before repair, remove the airbag sensor if shocks are likely to be applied to the sensor during repair. D Do not expose the following parts directly to hot air or flame; D Even in cases of a minor collision where the SRS does not deploy, the following parts should be inspected; D Never use SRS parts from another vehicle. When replacing parts, replace with new parts. D For the purpose of reuse, never disassemble and repair the following parts. D If the following parts have been dropped, or have cracks, dents and other defects in their case, bracket, and connector, replace with new one. D Use a volt/ohmmeter with high impedance (10 kΩ/V minimum) for troubleshooting electrical circuits of the system. D Information labels are attached to the periphery of the SRS components. Follow the instructions of the notice. D After work on the SRS is completed, check the SRS warning light. D If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section of the Repair Manual. ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ Steering wheel pad Front passenger airbag assembly Side airbag assembly Curtain shield airbag assembly Seat belt pretensioner Center airbag sensor assembly Front airbag sensor assembly Side airbag sensor assembly Rear airbag sensor assembly 181 COROLLA (EM00H0U) SRS 5 AM2 IG2 6 B–W B–W ST2 B I10 Ignition SW C17 Curtain Shield Airbag Squib LH C18 Curtain Shield Airbag Squib RH S6 Side Airbag Squib LH S7 Side Airbag Squib RH 6 IM 1 2 1 1 2 2 1 2 (∗1) Y–G (∗1) Y–R (∗1) Y–G (∗1) Y–R (∗1) L–Y GR (∗1) (∗1) (∗1) B–R P–L 3 IM LG–B 15A AM2 7 A 2 IA4 6 A ICD+ 10 C 9 C ICD– ICP+ ICP– 9 A SFD+ 10 A SFD– 7 C SFP+ 6 C SFP– 1 2 PP+ PP– 4 C 5 C Y 4 PD– 1 A Y–B 3 PD+ 2 A Y R DBE– 12 A G DBE+ 11 A R–B 1 DSP– 13 A G–W DSP+ 14 A Y–B B–R A12(A), A13(B), A14(C) Airbag Sensor Assembly 1 2 1 2 2 Seat Position Airbag Sensor 30A MAIN 1 B 1 1A Buckle SW B6 Buckle SW LH Seat Position Sensor FL MAIN 2. 0L Battery P12 Pretensioner LH 182 COROLLA (EM00H0U) P13 Pretensioner RH ∗ 1 : w/ Side Airbag B–W B–W A5 Airbag Sensor Front LH S14 Side Airbag Sensor Rear RH 2 BBD+ BBP– BR–W 4 IA1 1 IA1 2 IA1 BR–W LG P (∗1) 11 C 8 A BBD– B–W 4 3 IA1 B–W 3 1 BR 4 –SR 2 BR 3 +SR W–R BBR+ 15 A –SL 1 W–R (∗1) BBR– P BBL+ 30 B 28 B 29 B 27 B (∗1) BBL– (∗1) 1 BCR+ S10 Side Airbag Sensor LH 2 BCR– GR 1 BCL+ (∗1) 2 BCL– A6 Airbag Sensor Front RH +SL 2 GR–L (∗1) (∗1) (∗1) BCR+ 1 LG–B BCR– 2 P–L BCL+ 1 LG–B BCL– S11 Side Airbag Sensor RH S13 Side Airbag Sensor Rear LH 8 C BBP+ +SL –SL +SR –SR A12(A), A13(B), A14(C) Airbag Sensor Assembly P+ P– 4 B 3 B P2+ 1 B P2– 2 B E2 E1 26 B 25 B 3 II 10 IH 4 IF W–B II W–B Y–P Y–GR 3 Y–G 4 Y–R 2 Y–O Y 1 Y–V Y–B 10 GSW2 22 B Y D2– 7 B 7 II 6 IJ Y D2+ 8 B W–B D– 6 B W–B D+ 5 B 1 2 1 D– D2+ D2– A16 Airbag Squib (Steering Wheel Pad) 1 2 3 4 P+ P– P2+ P2– A15 Airbag Squib (Front Passenger Airbag Assembly) A IG J7 Junction Connector 2 D+ E6 Engine Control Module Spiral Cable 14 F/PS A J6 Junction Connector IE 183 COROLLA (EM00H0U) SRS (BAT) (IG) B–W 10A GAUGE 15A DOME 2 1 2 IG L–W B–W B–W 5 IL R–W 7 IC F7 Front Passenger Seat Belt Warning Light 8 II 4 IL 8 IK PAON L–W Front Passenger Airbag ON–OFF Indicator Light P–AB 20 4C 16 3B 13 B PBEW IG2 R–W 21 B P–AB L–W L–W 17 B PAON L–W B–O 23 B 19 4C B–O P 6 GR 3 22 3B 32 11 5 4 A12(A), A13(B), A14(C) Airbag Sensor Assembly B–Y L–W 2 14 B 5 II II SRS II LA FSP– 13 C P–B 1 FSP+ 12 C L SIL 16 B L–R TC 15 B 3 4C 2 3B BR 4 3B C9 Combination Meter 5 II2 BR 5 4C 1 B–Y L–R 1 IJ P–B 5 IJ B–Y 39 4 IJ L–R P–B L–W L L–R L–R L–R 13 TC 7 SIL BR D1 Data Link Connector 3 184 COROLLA (EM00H0U) (BAT) 10A ECU–B ∗ 2 : w/ Side Airbag and/or Stereo Component Amplifier ∗ 3 : w/o Side Airbag and Stereo Component Amplifier 1 IH R–B B–W B7 Buckle SW RH 3 IM1 3 IG1 O6 Occupant Classification Sensor Front RH R–B B–W O5 Occupant Classification Sensor Front LH 2 IM1 (∗2) 2 IG1 (∗3) SVC1 SIG1 SGD1 SVC2 SIG2 SGD2 1 2 3 1 2 3 1 B–W R–B B B–R R SB G W L O 2 7 A 1 A 9 A 5 A 11 B 7 B 1 B 12 B 8 B 2 B IG +B BSW BGND SVC1 SIG1 SGD1 SVC2 SIG2 SGD2 O 3(A), O 4(B) Occupant Classification ECU GND 4 B B BR SGD4 10 B V SIG4 6 B W SVC4 3 B Y SGD3 9 B GR SIG3 5 B 7 IM1 (∗2) 7 IG1 (∗3) BR L–R 4 IM1 4 IG1 SVC3 3 A BR DIA 2 A L–R L FSR+ 8 A L–W FSR– 4 A L–W 1 2 3 1 2 3 SVC3 SIG3 SGD3 SVC4 SIG4 SGD4 L 15 II2 O7 Occupant Classification Sensor Rear LH BR L–R C C J3 Junction Connector C BR BR O8 Occupant Classification Sensor Rear RH EB 185 COROLLA (EM00H0U) SRS System Outline The SRS is a driver and front passenger protection device which has a supplemental role to the seat belts. When the ignition SW is turned to ON, current from the MAIN fuse flows to AM2 fuse to ignition SW (IG2) to TERMINAL (B) 21 of the airbag sensor assembly. If an accident occurs while driving, when the frontal impact exceeds a set level, the current from the TERMINAL (B) 21 of the airbag sensor assembly flows to TERMINALS (B) 5, (B) 8, (B) 4, (B) 1, (A) 2 and (C) 4 of the airbag sensor assembly to the airbag squibs and the pretensioners to TERMINALS (B) 6, (B) 7, (B) 3, (B) 2, (A) 1 and (C) 5 of the airbag sensor assembly to TERMINAL (B) 25, (B) 26 or BODY GROUND to GROUND, so that the current flows to the front airbag squibs and the pretensioners, and causes them to operate. When the side impact also exceeds a set level, the current from the TERMINAL (B) 21 of the airbag sensor assembly flows to TERMINALS (A) 9, (C) 7, (A) 7, (C) 9 of the airbag sensor assembly to the side airbag squibs and curtain shield airbag squibs to TERMINALS (A) 10, (C) 6, (A) 6, (C) 10 of the airbag sensor assembly to TERMINAL (B) 25, (B) 26 or BODY GROUND to GROUND, causing side airbag squibs to operate. The airbag stored inside the steering wheel pad is instantaneously expanded to soften the shock to the driver. The airbag stored inside the passenger's instrument panel is instantaneously expanded to soften the shock to the front passenger. Side airbags are instantaneously expanded to soften the shock of side to the driver and front passenger. The curtain shield airbag can reduce impact on the head of the front and rear passengers and reduce risk or injury. The pretensioners make sure of the seat belt restrainability. : Parts Location Code See Page A5 A6 Code See Page 32 (1ZZ–FE) C18 38 (*1) 34 (2ZZ–GE) D1 36 32 (1ZZ–FE) E6 36 34 (2ZZ–GE) F7 37 A12 A 36 I10 37 A13 B 36 J3 37 A14 C 36 J6 37 A15 36 J7 37 A16 36 38 (*1) B6 40 (*2) 38 (*1) B7 O3 O4 40 (*2) C9 36 C17 38 (*1) A B O5 O6 39 (*1) Code O6 O7 O8 P12 P13 See Page 41 (*2) 39 (*1) 41 (*2) 39 (*1) 41 (*2) 39 (*1) 41 (*2) 39 (*1) 41 (*2) 41 (*2) S6 39 (*1) 39 (*1) S7 39 (*1) 41 (*2) S10 39 (*1) 39 (*1) S11 39 (*1) 41 (*2) S13 39 (*1) 39 (*1) S14 39 (*1) : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code IC See Page 25 Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) IF IG IH 25 II Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) IJ IK IL 24 IM 1A 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 3B 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 4C 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 186 COROLLA (EM00H0U) : Connector Joining Wire Harness and Wire Harness Code IA1 See Page Joining Wire Harness and Wire Harness (Connector Location) 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) IG1 45 Instrument Panel Wire and Instrument Panel No.3 Wire (Front Side of the Parking Brake Lever) II2 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) IM1 45 Instrument Panel Wire and Floor Wire (Front Side of the Parking Brake Lever) IA4 : Ground Points Code EB See Page 42 (1ZZ–FE) 43 (2ZZ–GE) Ground Points Location Left Side of the Cylinder Head IE 44 Behind the Combination Meter IG 44 Right Kick Panel 187 COROLLA (EM00H0U) Shift Lock (IG) (BAT) 15A STOP 10A ECU–IG 14 IC R–W 9 IF 2 B–W S9 Stop Light SW G–W 1 5 IC 7 3B 1 IL G–W 5 3B B–W 13 3C 10 3C G–W W–B 1 5 3 E IG STP 16 3A 11 3A W–B SLS+ A SLS– Shift Lock Solenoid J7 Junction Connector S5 Shift Lock Control ECU IG 188 COROLLA (EM00H0U) System Outline When the ignition SW is turned to ON position, the current from the ECU–IG fuse flows to TERMINAL 5 of the shift lock control ECU. Shift Lock Mechanism With the ignition SW at ON position, when a signal that the brake pedal is depressed (Stop light SW on) and a signal that the shift lever is put in P position is input to the ECU, the ECU operates and the current flows from TERMINAL 5 of the ECU to TERMINAL SLS+ of the shift lock solenoid to TERMINAL SLS– to TERMINAL 1 of the ECU to GROUND. This causes the shift lock solenoid to turn on (Plate stopper disengages) and the shift lever can shift into position other than P. : Parts Location Code See Page J7 37 Code S5 See Page 37 Code S9 See Page 37 : Junction Block and Wire Harness Connector Code See Page IC 25 IF 25 IL 24 Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 3A 3B 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 3C : Ground Points Code IG See Page 44 Ground Points Location Right Kick Panel 189 COROLLA (EM00H0U) Light Reminder and Key Reminder (IG) (BAT) ∗ ∗ ∗ ∗ (BAT) 1 2 3 4 : w/ Door Lock Control : w/o Door Lock Control : USA : Canada G–W 15A DOME 15A TAIL D2 Daytime Running Light Relay 13 15 T OFF Light Control SW 7 IC (∗3) 3 (∗4) L–W 22 3B (∗3) 7 IH G–W R–W 1 G–W G–W (∗3) 2 2 IG (∗3) G–W 10A GAUGE Tail TAIL Head 1 3 3 TAIL Relay 2 5 14 4 IL C12 Combination SW L–W 3 10 G G–B 20 4C (∗3) (∗4) 16 3B R–W G (∗3) G 19 4C L–W W–B 4 (∗3) 5 C9 Combination Meter 18 Buzzer 17 16 2 L–B 11 4B (∗3) W–B 18 4B (∗2) L–B 14 4A W–B R–W (∗1) 3 IL 15 4A L–B 2 1 ID (∗1) R–W U1 Unlock Warning SW 21 4B 1 W–B D4 Door Courtesy SW Front LH W–B 1 A A J6 Junction Connector IE 190 COROLLA (EM00H0U) 3 System Outline The current is applied at all times to TERMINAL 5 of the combination meter through the DOME fuse. When the ignition SW is turned to ON position, the current flows to TERMINAL 4 of the combination meter through the GAUGE fuse. When the light control SW is turned to TAIL or HEAD position, current is applied to TERMINAL 18 of the combination meter through the TAIL fuse via the TAIL relay (USA) or the light control SW (Canada). 1. Light Reminder System When the light control SW is in TAIL or HEAD position, the ignition SW turned to OFF from ON position, and the driver's door opened (Door courtesy SW on), the current flows to TERMINAL 4 of the combination meter stops. As a result, the combination meter is activated and current flows from TERMINAL 5 of the combination meter to TERMINAL 2 to GROUND, the buzzer in the combination meter goes on to remind the light is lighting up. 2. Key Reminder System When the driver door is opened with the ignition SW off and ignition key remaining in the key cylinder (Unlock warning SW on), a signal is input from the unlock warning SW to TERMINAL 16 of the combination meter, and from the door courtesy SW front LH to TERMINAL 17 of the combination meter. As a result, the buzzer in the combination meter goes on and warns the driver that the key is remaining in the key cylinder. : Parts Location Code See Page C9 36 C12 36 D2 36 Code See Page 38 (*1) D4 Code U1 See Page 37 40 (*2) J6 37 : Relay Blocks Code See Page Relay Blocks (Relay Block Location) 1 22 Engine Room R/B (Engine Compartment Left) 3 28 RH R/B (Right Side of the Instrument Panel Reinforcement) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) IC 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) ID 25 Floor Wire and Instrument Panel J/B (Lower Finish Panel) IG IH 25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) IL 24 3B 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) 4A 4B 4C : Ground Points Code IE See Page 44 Ground Points Location Behind the Combination Meter * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 191 COROLLA (EM00H0U) Seat Belt Warning (BAT) 5 AM2 B–W IG2 6 10A ECU–B B–W B ST2 1 IH R–B B–W 6 IM B–W I10 Ignition SW 5 IL 15A AM2 3 IM1 3 IG1 2 IM1 (∗1) 2 IG1 (∗2) L 8 II 21 B 2 IA4 12 C IG2 13 C FSP+ 4 A FSP– 8 A FSR– FSR+ R–B B–O B–R A13(B), A14(C) Airbag Sensor Assembly B–W L–W 3 IM 7 A 1 A IG +B 10 II 3 II 1 II BGND 5 A 2 1 2 DIA 4 IM1 4 IG1 II GND 2 A 3 A BR BSW 9 A L–R SIL 16 B B–R TC 15 B B L–W W–B 1 PBEW L–R 13 B P–B E1 25 B B–R E2 26 B W–B O 3(A), O 4(B) Occupant Classification ECU 7 IM1 (∗1) 7 IG1 (∗2) 4 3B 3 4C 2 3B BR 5 4C 1 L–R L–R 5 IJ L–R 4 IJ P–B 4 IF P–B 10 IH 30A MAIN B7 Buckle SW RH 2 B 1 1A 15 II2 13 TC 7 SIL D1 Data Link Connector 3 J3 Junction Connector L–R W–B W–B BR L–R FL MAIN 2. 0L C C BR C Battery IG A BR A J6 Junction Connector J7 Junction Connector L–W EB IE 192 COROLLA (EM00H0U) (IG) ∗ 1 : w/ Side Airbag and/or Stereo Component Amplifier ∗ 2 : w/o Side Airbag and Stereo Component Amplifier (BAT) 10A GAUGE 2 O6 Occupant Classification Sensor Front RH 1 L–W 2 IG R–W O5 Occupant Classification Sensor Front LH 15A DOME 7 IC SVC1 SIG1 SGD1 SVC2 SIG2 SGD2 1 2 3 1 2 3 22 3B 2 B SGD2 1 4 5 12 L BR SGD4 4 B B SIG4 10 B V SVC4 6 B W SGD3 3 B Y SIG3 9 B GR SVC3 5 B 19 4C G–Y O 3(A), O 4(B) Occupant Classification ECU G–Y SIG2 L–W R–W L 8 B L–W SVC2 R–W 12 B 20 4C R–W SGD1 W G 1 B SIG1 2 PASSENGER 7 B 16 3B F7 Front Passenger Seat Belt Warning Light SVC1 11 3B O 11 B SB R 4 IL 8 IM1 (∗1) 8 IG1 (∗2) 2 3 1 2 3 SIG3 SGD3 SVC4 SIG4 SGD4 5 Seat Belt 1 SVC3 B6 Buckle SW LH G–Y 6 11 L–W II2 W–B 2 C9 Combination Meter 9 IG1 (∗2) 9 IM1 (∗1) 18 4B 21 4B 15 3A W–B BR W–B 5 1 W–B O8 Occupant Classification Sensor Rear RH BR 6 O7 Occupant Classification Sensor Rear LH 11 3A BR A J6 Junction Connector IE J7 Junction Connector W–B L–W A IG 193 COROLLA (EM00H0U) Seat Belt Warning System Outline Current is always applied from the DOME fuse to TERMINAL 5 of the combination meter. When the ignition SW is turned to ON position, the current from the GAUGE fuse flows to TERMINAL 4 of the combination meter and flows TERMINAL 1 of the front passenger seat belt warning light. Seat Belt Warning System When the ignition SW turned on, a signal is input to the combination meter. To determine whether the driver has fastened the seat belt, a signal is input from the buckle SW LH to TERMINAL 12 of the combination meter. When the seat belt is not fastened, the seat belt warning light in the combination meter blinks, and emits a warning sound. In addition, the front passenger is recognized by a sensor (Occupant detection sensor) is installed in the front passenger seat, and determines whether the seat belt is fastened. When not fastened, the signals from the occupant detection sensor is input to TERMINAL 11 of the combination meter, and the front passenger seat belt warning light blinks. : Parts Location Code See Page Code See Page A13 B 36 I10 37 A14 C 36 J3 37 38 (*1) J6 37 40 (*2) J7 37 B6 38 (*1) B7 40 (*2) C9 36 D1 36 F7 37 O3 A O4 B O5 39 (*1) 41 (*2) 39 (*1) Code O5 O6 O7 O8 See Page 41 (*2) 39 (*1) 41 (*2) 39 (*1) 41 (*2) 39 (*1) 41 (*2) 41 (*2) 39 (*1) : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code IC See Page 25 Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) IF IG IH 25 II Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) IJ IL IM 1A 3A 3B 4B 4C 24 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) : Connector Joining Wire Harness and Wire Harness Code See Page Joining Wire Harness and Wire Harness (Connector Location) IA4 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) IG1 45 Instrument Panel Wire and Instrument Panel No.3 Wire (Front Side of the Parking Brake Lever) II2 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) IM1 45 Instrument Panel Wire and Floor Wire (Front Side of the Parking Brake Lever) * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 194 COROLLA (EM00H0U) : Ground Points Code EB See Page 42 (1ZZ–FE) 43 (2ZZ–GE) Ground Points Location Left Side of the Cylinder Head IE 44 Behind the Combination Meter IG 44 Right Kick Panel 195 COROLLA (EM00H0U) Rear Window Defogger (IG) (BAT) 10A GAUGE 40A DEFOG 2 R–W 2 IG 2 5 DEF Relay 22 3B 14 3B 1 3 10 IL 4 IM B R–W B 8 ID1 5 4 D B B B IG 1 A 1 R15(A), R16(B) Rear Window Defogger On Off E 1 B 2 W–B B R5 Rear Window Defogger SW IE BJ 196 COROLLA (EM00H0U) N2 Noise Filter (Rear Window Defogger) : Parts Location Code See Page 39 (*1) N2 41 (*2) R5 37 Code See Page R15 A R16 B 39 (*1) Code R16 See Page B 41 (*2) 41 (*2) 39 (*1) : Junction Block and Wire Harness Connector Code IG IL IM 3B See Page Junction Block and Wire Harness (Connector Location) 25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 24 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) : Connector Joining Wire Harness and Wire Harness Code ID1 See Page 44 Joining Wire Harness and Wire Harness (Connector Location) Instrument Panel Wire and Floor Wire (Left Kick Panel) : Ground Points Code IE BJ See Page 44 46 (*1) 47 (*2) Ground Points Location Behind the Combination Meter Under the Right Quarter Pillar * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 197 COROLLA (EM00H0U) Audio System with Stereo Component Amplifier (BAT) (ACC) 30A AMP 15A CIG GR 2 1 GR GR L–R 8 IF IL1 7 IL1 L–R L–R GR L–R 1 GR L–R 5 IA2 1 A 10 A 12 B 2 IJ1 1 IJ1 10 IL3 IL3 6 IC1 5 IC1 3 L LG P 9 FR– 18 A IL1 4 4 IL1 L IL1 FR+ 7 A LG G–W 6 IL1 FL– 17 A V 3 IC1 FL+ 6 A P 4 IC1 5 G–W IL3 TWR– 12 A V TWR+ 3 A L–W 12 L–W IL3 R–W W–B TWL– 11 A BR TWL+ 2 A 11 IJ1 3 IJ1 L LG L 1 2 1 2 A J7 Junction Connector T4 Tweeter LH T5 Tweeter RH IG 198 COROLLA (EM00H0U) 1 2 F8 Front Door Speaker LH L BR 2 BF1 LG G–W 1 BF1 W L 2 BE1 R R–L 1 BE1 LG IL1 W–B 2 ACC R–W W–B GND 15 A W–B GND2 16 A B2+ BR B+ S15(A), S16(B) Stereo Component Amplifier 1 2 F9 Front Door Speaker RH (BAT) 15A DOME GR A17 Antenna Amplifier 2 10 3A 1 7 3A B GR 1 R19 Radio and Player 13 ANT+ R13 Rear Speaker LH L– RR+ 7 +B L–W 1 17 4C 7 IC 20 4C 4 IL L–W 2 B L+ GND 20 BR G B R 3 B 5 A 2 IL2 R– 13 A 10 IL2 RR– 14 A S15(A), S16(B) Stereo Component Amplifier 1 2 R14 Rear Speaker RH BR B 1 17 4 B R RL– IL2 R+ Y RL+ 16 5 B MUTE 4 A IL2 G 1 B TX– 6 B 19 B TX+ IL2 SLD 19 W 20 B 5 L– 9 W IL2 L+ 18 R 4 W IL2 V 9 R– 8 (Shielded) W V P IL2 R+ 7 P 8 MUTE W TX– 15 (Shielded) TX+ L–W ACC 5 L–W 11 IF 199 COROLLA (EM00H0U) Audio System with Stereo Component Amplifier : Parts Location Code See Page A17 Code 36 R13 38 (*1) F8 40 (*2) 40 (*2) J7 39 (*1) 41 (*2) R19 37 S15 Code S16 41 (*2) R14 38 (*1) F9 See Page 39 (*1) 37 A See Page B T4 T5 39 (*1) 39 (*1) 41 (*2) 39 (*1) 41 (*2) 39 (*1) : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) IC 25 IF 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) IL 24 3A 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 4C 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) : Connector Joining Wire Harness and Wire Harness Code See Page Joining Wire Harness and Wire Harness (Connector Location) IA2 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) IC1 44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel) IJ1 45 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel) 45 Floor Wire and Instrument Panel Wire (Right Kick Panel) IL1 IL2 IL3 BE1 BF1 46 (*1) 47 (*2) 46 (*1) 47 (*2) Speaker Tweeter LH Wire and Front Door LH Wire (Inside of the Front Door LH) Speaker Tweeter RH Wire and Front Door RH Wire (Inside of the Front Door RH) : Ground Points Code See Page Ground Points Location IF 44 Behind the Combination Meter IG 44 Right Kick Panel * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 200 COROLLA (EM00H0U) Memo 201 COROLLA (EM00H0U) Audio System without Stereo Component Amplifier ∗ 1 : w/ Tweeter ∗ 2 : w/o Tweeter (BAT) 15A DOME 2 L–W 1 A17 Antenna Amplifier 20 4C L–W 7 IC 17 4C 4 IL L–W B 1 4 A 8 A FL– LG L IJ1 3 IJ1 L 4 BR V 5 A LG V 5 IC1 (∗1) FR– 1 A 6 IC1 P FR+ 6 A P 2 A (∗1) FL+ 7 A (∗1) GND ANT+ (∗1) +B R 3(A), R 4(B) Radio and Player 2 T4 Tweeter LH 1 2 F8 Front Door Speaker LH IF 202 COROLLA (EM00H0U) 2 T5 Tweeter RH 1 2 F9 Front Door Speaker RH L(∗2) L(∗1) 1 L(∗1) 2 BF1 LG(∗1) LG(∗1) LG(∗2) V(∗2) L(∗1) 1 1 BF1 V(∗1) 2 BE1 LG(∗1) P(∗1) P(∗2) 1 BE1 (ACC) 15A CIG GR 8 IF 10 3A GR 7 3A R 3(A), R 4(B) Radio and Player 3 A ACC RL+ RL– RR+ RR– W 1 ID1 5 ID1 1 2 R13 Rear Speaker LH W R 6 ID1 B 2 ID1 R 3 B Y 1 B Y 6 B B 2 B 1 2 R14 Rear Speaker RH 203 COROLLA (EM00H0U) Audio System without Stereo Component Amplifier : Parts Location Code See Page A17 F8 Code R3 A 37 38 (*1) R4 B 37 40 (*2) R13 38 (*1) F9 See Page 36 40 (*2) R14 39 (*1) 41 (*2) 39 (*1) Code R14 T4 T5 See Page 41 (*2) 39 (*1) 41 (*2) 39 (*1) 41 (*2) : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) IC 25 IF 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) IL 24 3A 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 4C 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) : Connector Joining Wire Harness and Wire Harness Code See Page Joining Wire Harness and Wire Harness (Connector Location) IC1 44 Front Door LH Wire and Instrument Panel Wire (Left Kick Panel) ID1 44 Instrument Panel Wire and Floor Wire (Left Kick Panel) IJ1 45 Front Door RH Wire and Instrument Panel Wire (Right Kick Panel) BE1 BF1 46 (*1) 47 (*2) 46 (*1) 47 (*2) Speaker Tweeter LH Wire and Front Door LH Wire (Inside of the Front Door LH) Speaker Tweeter RH Wire and Front Door RH Wire (Inside of the Front Door RH) : Ground Points Code IF See Page 44 Ground Points Location Behind the Combination Meter * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 204 COROLLA (EM00H0U) Memo 205 COROLLA (EM00H0U) Combination Meter B–W B–W 5 AM2 IG2 6 (IG) 1 ST2 10A HEAD RH UPR B 4 IL 6 IM I10 Ignition SW 2 1 2 IG L–W L–W 10A GAUGE 1 (BAT) R–W R–W R R–W 22 3B 16 3B 6 IA6 40A HEAD MAIN 15A AM2 20 4C 2 19 4C 20 3B B–R L–W R 3 IM R 7 IC R 1 14 A 5 A C 9(A), C16(B) Combination Meter 2 IA4 1 1 Tachometer Speedometer B A R–B 1 Door 1 R–Y 30A MAIN R–B 1 5 1 J 4(A), J 5(B) Junction Connector 15A DOME 2 II2 High Beam 2 14 R–W 1 2 3 HEAD 1 HEAD Relay 1 1 (∗4) B–R L–W 1 (∗4) R–W R C B 8 A R–W L–B Y–R 19 A B 16 A Engine Control Module Engine Control Module Unlock Warning SW Integration Relay Door Courtesy SW Front LH Door Courtesy SW Front RH, Rear LH, RH V1 Vehicle Speed Sensor (Combination Meter) W–B 1 17 A R R W–R FL MAIN 2. 0L (∗4) 1 20 A R 5 1 (USA) 7 B Daytime Running Light Relay 2 13 A R 3 W–B 1 R–W B DIMMER Relay 1 1A J6 Junction Connector Battery 2 A A 3 W–G(∗4) W–B BR(∗4) W–B IE 206 COROLLA (EM00H0U) B–W B–W ∗ ∗ ∗ ∗ 1 2 3 4 : Optitron Meter : 2ZZ–GE : w/ VSC, w/ ABS : Except ∗3 R R–W Rheostat B 15 A Skid Control ECU with Actuator W–R B (∗1) Clutch Start SW (M/T) Park/Neutral Position SW (A/T) Rheostat R–W 28 A 9 B 38 A 4 A C 9(A), C16(B) Combination Meter Out Side Temp. ODO/TRIP ODO/TRIP 10 IA6 B–L R–B 8 4C 3 Airbag Sensor Assembly Buckle SW LH Back–Up Light SW A7 Ambient Temp. Sensor 2 2 F10 Fuel Sender BR C B J 2(A), J 3(B) Junction Connector BR C B C A 1 (∗4) Skid Control ECU with Actuator Cruise Control ECU Engine Control Module 11 A (∗3) W–G 14 IA6 BR II2 II2 (∗3) 4 W–G (∗2) 7 4C V–W V–W 9 4C (∗4) W–G 5 12 A L–W B–L 3 IA6 27 A (∗2) B 5 ID2 B 30 A Y 26 A Y 7 A 13 ID2 BR V–W 22 A BR 1 A BR 9 A W–G 10 A G–Y Fuel Fuel Temp. Buzzer BR(∗4) W–B BR W–G(∗4) W–B EB 207 COROLLA (EM00H0U) 18 4B Generator Y W–B 2 A 21 4B W–B 208 COROLLA (EM00H0U) (USA) Illumination B–O 25 A 32 A Turn RH (USA) G–Y 24 A Charge G–B 18 A Turn LH L G C 9(A), C16(B) Combination Meter (Canada) 6 A MAINT REQD (Canada) TAIL Seat Belt Turn Signal Flasher Relay Combination SW (Canada) TAIL Relay (USA) Front Passenger Seat Belt Warning Light Combination Meter B–W 5 IL 8 IK (USA) (USA) 31 A EA 17 IA5 1 B2 Brake Fluid Level Warning SW 2 Engine Control Module R–W R–W B Skid Control ECU with Actuator (∗4) B J1 Junction Connector 15 IA5 R–W (∗4) ED COROLLA (EM00H0U) 1 (∗4) B 13 IA6 3 W (Canada) W1 Washer Level Sensor L–W R–Y LG V W (Canada) L–W G–R (w/ VSC) W Oil Pressure Slip VSC O/D OFF Malfunction Indicator Lamp Washer Level SRS Brake CRUISE 2 B Engine Control Module (1ZZ–FE) Cruise Control ECU (2ZZ–FE) 3 B 23 A 34 A 21 A 1 O1 Oil Pressure SW 16 IA5 3 A (Canada) 5 IA6 W–B 14 IA5 33 A (w/ VSC) R–W 35 A (∗4) (∗3) R ABS Tire Pressure 39 A R–W (∗3) R–W W–R 36 A W–B R (∗4) W–B (∗4) W–B 37 A Skid Control ECU with Actuator (∗4) (∗3) W–R (∗4) W–B LG 29 A W–B Skid Control ECU with Actuator LG(∗3) B–Y Airbag Sensor Assembly ∗ 3 : w/ VSC, w/ ABS ∗ 4 : Except ∗3 C 9(A), C16(B) Combination Meter II2 2 Daytime Running Light Relay EA 209 Combination Meter : Parts Location Code See Page A7 Code F10 40 (*2) 34 (2ZZ–GE) I10 37 32 (1ZZ–FE) B2 See Page 32 (1ZZ–FE) 33 (1ZZ–FE) J1 34 (2ZZ–GE) 35 (2ZZ–GE) C9 A 36 J2 A 37 C16 B 36 J3 B 37 38 (*1) J4 A 37 F10 Code J5 See Page B J6 O1 V1 W1 37 37 33 (1ZZ–FE) 35 (2ZZ–GE) 33 (1ZZ–FE) 33 (1ZZ–FE) 35 (2ZZ–GE) : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page IC 25 IG 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) IK IL Junction Block and Wire Harness (Connector Location) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 24 IM 1A 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 3B 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) 4B 4C : Connector Joining Wire Harness and Wire Harness Code See Page Joining Wire Harness and Wire Harness (Connector Location) IA4 IA5 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) ID2 44 Instrument Panel Wire and Floor Wire (Left Kick Panel) II2 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) IA6 : Ground Points Code EA EB ED IE See Page 42 (1ZZ–FE) 43 (2ZZ–GE) 42 (1ZZ–FE) 43 (2ZZ–GE) 42 (1ZZ–FE) 43 (2ZZ–GE) 44 Ground Points Location Front Right Fender Left Side of the Cylinder Head Front Left Suspension Tower Behind the Combination Meter * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 210 COROLLA (EM00H0U) Memo 211 COROLLA (EM00H0U) Radiator Fan (BAT) (IG) 30A RDI FAN 10A ECU–IG 2 1 B–W 13 IC B–W 1 1 1 1 1 FAN NO. 1 Relay 3 4 FAN NO. 2 Relay 2 2 5 1 LG–B 1 EA1 LG–B LG–B LG 6 EA1 2 3 Single 14 A (1ZZ–FE) 9 B (2ZZ–GE) CF FAN 1 W–B 16 B 21 B 2 W–B W–R 1 2 P2 Pressure SW W–B R1 Radiator Fan Motor 1 W–B M 1 1 LG B–R 1 R2 Radiator Fan Resistor 3 1 W–B 5 W–R L–W B–W E 3(A), E 4(B) Engine Control Module EA 212 COROLLA (EM00H0U) ED System Outline The current is applied at all times through the RDI FAN fuse to TERMINAL 5 of the FAN NO.1 relay. When the ignition SW is turned on, the current flows through the ECU–IG fuse to FAN NO.1 relay (Coil side) to TERMINAL CF of the engine control module. At the same time as this current flow, the current from ECU–IG fuse flows to the FAN NO.2 relay (Coil side) to TERMINAL 3 of the pressure SW. 1. Low Speed Operation When the A/C system is operating, the FAN NO.1 relay is turned on. As a result, the current flows from the RDI FAN fuse to FAN NO.1 relay (Point side) to TERMINAL 2 of the radiator fan motor to TERMINAL 1 to TERMINAL 3 of the FAN NO.2 relay to TERMINAL 4 to TERMINAL 2 of the radiator fan resistor to TERMINAL 1 to GROUND, and the radiator fan motor rotates at low speed. 2. High Speed Operation When the pressure SW is on or engine control module operated, the FAN NO.1 and NO.2 relay is turned on. As a result, the current flows from the RDI FAN fuse to FAN NO.1 relay (Point side) to radiator fan motor to TERMINAL 3 of the FAN NO.2 relay to TERMINAL 5 to GROUND, and the radiator fan motor rotates at high speed. : Parts Location Code See Page E3 A 36 E4 B 36 P2 Code P2 R1 33 (1ZZ–FE) See Page 35 (2ZZ–GE) 33 (1ZZ–FE) Code R2 See Page 33 (1ZZ–FE) 35 (2ZZ–GE) 35 (2ZZ–GE) : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code IC See Page 25 Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) : Connector Joining Wire Harness and Wire Harness Code EA1 See Page 42 (1ZZ–FE) 43 (2ZZ–GE) Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of the Engine Room R/B) : Ground Points Code EA ED See Page 42 (1ZZ–FE) 43 (2ZZ–GE) 42 (1ZZ–FE) 43 (2ZZ–GE) Ground Points Location Front Right Fender Front Left Suspension Tower 213 COROLLA (EM00H0U) Air Conditioning L–W (IG) (BAT) 10A GAUGE B 40A HEATER 2 L–W B 3 IC 7 IF 2 IM B–W 2 IG ∗ 1 : 1ZZ–FE ∗ 2 : 2ZZ–GE R–W 10A A/C B 5 IM R–W R–W B B–W HTR Relay 4 1 2 6 5 3 4 B–W 3 3 L–W 3 3 W–B B B L–W R B–W 1 B–L M B 1 2 5 A/C Thermistor B4 Blower Resistor A/C Thermistor Blower Resistor BR 3 3 2 B B3 Blower Motor R–W B–W W–B 13 3B R 12 3B L–B 18 3B R–W B–W 22 3B R–W 4 1 2 HI M2 M1 LO OFF 6 W–B B5 Blower SW W–B 5 A A B–L BR W–B A A IG 214 COROLLA (EM00H0U) J7 Junction Connector W–B L–W L–W B L–W A8 A/C SW Air Inlet Control SW Defroster Mode Detection SW A/C SW FRS REC Off On 1 FOOT 1 5 1 3 2 F/D DEF 2 B 2 1 AIND A/C 4 3 4 EA1 B–W GND 8 W–B REC 7 L–W FRS 6 G–W 7 IA6 Y–B Y 1 M ACLD A/CS THE ACMG HP 27 B (∗2) 1 C (∗1) 28 A BR E2 32 C B–L W–B 5 C (∗2) 2 C (∗1) 10 D 28 C E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module Y F F BR 11 3A B–L Y (∗1) 1 II2 BR 1 8 EA1 8 IA6 BR P2 Pressure SW 20 3A J3 Junction Connector (∗1) Y 33 C (∗2) 5 Y R–W A11 Air Inlet Control Servo Motor FRS G–W REC A1 A/C Magnetic Clutch R–W Dual IG 9 1 Y–B B–W 1 (∗2) Air Inlet Control SW B/L M/G CLT Relay Defroster Mode Detection SW FACE 4 W–B W–B EA 215 COROLLA (EM00H0U) Air Conditioning System Outline Current is applied at all times through the HEATER fuse to TERMINAL 5 of the HTR relay. When the ignition SW is turned on, the current flows through the GAUGE fuse to TERMINAL 2 of the HTR relay to TERMINAL 1 to TERMINAL 6 of the blower SW. 1. Heater Blower Motor Operation ∗ Low speed operation When the blower SW is moved to LO position, the current flows to TERMINAL 6 of the blower SW to TERMINAL 5 to GROUND, causing the HTR relay to turn on. This causes the current flows from the HEATER fuse to TERMINAL 5 of the HTR relay to TERMINAL 3 to the blower motor to the blower resistor to GROUND, rotating the blower motor at low speed. ∗ Medium speed operation (Operation at M1, M2) When the blower SW is moved to M1 position, the current flows to TERMINAL 6 of the blower SW to TERMINAL 5 to GROUND, causing the HTR relay to turn on. This causes the current flows from the HEATER fuse to TERMINAL 5 of the HTR relay to TERMINAL 3 to the blower motor to the blower resistor to TERMINAL 2 of the blower SW to TERMINAL 5 to GROUND. At this time, the blower resistance of the blower resistor is smaller than at low speed, so the blower motor rotates at medium low speed. When the blower SW is moved to M2 position, the current flows through the HTR relay to the blower motor to the blower resistor to TERMINAL 1 of the blower SW to TERMINAL 5 to GROUND. At this time, resistance of the blower resistor is smaller than at M1 position, so the blower motor rotates at medium high speed. ∗ High speed operation When the blower SW is moved to HI position, the current flows to TERMINAL 6 of the blower SW to TERMINAL 5 to GROUND, causing the HTR relay to turn on. This causes the current flows from the HEATER fuse to TERMINAL 5 of the HTR relay to TERMINAL 3 to the blower motor to TERMINAL 4 of the blower SW to TERMINAL 5 to GROUND, rotating the blower motor at high speed. 2. Air Conditioning Operation When the blower SW is set on, the current flows from the HEATER fuse to the HTR relay (Point side) to the A/C fuse to the TERMINAL 2 of the A/C SW. If the A/C SW is turned on, at this time a signal is input into the engine control module. This activates the engine control module and M/G CLT relay. So that current flows from the A/C fuse to M/G CLT relay (Point side) to A/C magnetic clutch. Causing the compressor to operate. : Parts Location Code See Page Code 32 (1ZZ–FE) A1 See Page B4 34 (2ZZ–GE) 36 B5 Code E6 See Page D 36 36 J3 37 A 36 J7 37 E4 B 36 E5 C 36 A8 36 E3 A11 36 B3 36 P2 33 (1ZZ–FE) 35 (2ZZ–GE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) 1 22 Engine Room R/B (Engine Compartment Left) 3 28 RH R/B (Right Side of the Instrument Panel Reinforcement) : Junction Block and Wire Harness Connector Code IC IF IG IM 3A 3B See Page 25 25 Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 24 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 216 COROLLA (EM00H0U) : Connector Joining Wire Harness and Wire Harness Code EA1 See Page 42 (1ZZ–FE) 43 (2ZZ–GE) Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of the Engine Room R/B) IA6 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) II2 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) : Ground Points Code EA IG See Page 42 (1ZZ–FE) 43 (2ZZ–GE) 44 Ground Points Location Front Right Fender Right Kick Panel 217 COROLLA (EM00H0U) Heater (IG) (BAT) A8 Air Inlet Control SW 10A GAUGE 40A HEATER FRS Air Inlet Control SW REC 2 IM B–W R–W 2 1 GND 8 22 3B FRS 18 3B M 12 3B 13 3B R–W R–W 5 R–W B–W A11 Air Inlet Control Servo Motor REC R–W REC 7 L–W FRS 6 G–W IG 9 W–B 2 IG R–W 2 B4 Blower Resistor 3 3 3 3 W–B 1 B–W 2 R M 4 HTR Relay L–B 1 5 B–W 2 B3 Blower Motor B 3 1 2 6 5 3 W–B W–B W–B L–W B–W B L–W B–W R 20 3A 4 1 2 HI M2 M1 LO OFF 11 3A L–W 6 W–B A A A A IG 218 COROLLA (EM00H0U) W–B W–B B5 Blower SW W–B 5 J7 Junction Connector : Parts Location Code See Page Code See Page Code See Page A8 36 B3 36 B5 36 A11 36 B4 36 J7 37 : Relay Blocks Code 3 See Page 28 Relay Blocks (Relay Block Location) RH R/B (Right Side of the Instrument Panel Reinforcement) : Junction Block and Wire Harness Connector Code See Page IG 25 IM 24 3A 3B Junction Block and Wire Harness (Connector Location) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) : Ground Points Code IG See Page 44 Ground Points Location Right Kick Panel 219 COROLLA (EM00H0U) Power Source ∗ ∗ ∗ ∗ 1 2 3 4 1 : 1ZZ–FE : 2ZZ–GE : w/ VSC : w/o VSC 2 1 50A AIR PUMP 1 2 B 1 1B B–G 1 1D W 1 1 B G2 Generator W R 1 2 30A ABS NO. 1 30A POWER 1 2 1 L 7. 5A OBD 50A ABS NO. 2 (∗3) 40A ABS NO. 2 (∗4) 12 IF W 6 IM B 25A AM1 1 2 1 B–W 10A ECU–B 30A RDI FAN 1 1 1A 2 1 15A STOP 15A FOG 1 1C 2 1 15A P/POINT G 1 IB W 15A TAIL 100A ALT 1 2 1 25A DOOR B–R 10A ETCS 1 2 1 W 5A ALT–S 1 2 1 B–R 2 IA4 3 IM B–R 15A AM2 30A MAIN 2 B 1 R–W 1 20A EFI (∗1) 15A EFI (∗2) 1 1 B–W 2 1 1 5 3 1 2 B 1 1 W–B EFI Relay G–W 10A HAZARD 2 1 B–W 1 1 2 3 5 1 R–Y R 1 FL MAIN 2. 0L 10A HORN 1 1 2 R 1 R–B 1 HEAD Relay R–B 40A HEAD MAIN 2 1 L–W 15A DOME 1 1 R–B Battery 1 1 2 1 L–R 30A AMP 50 COROLLA (EM00H0U) 3 5 1 2 DIMMER Relay R 1 1 W–R 1 2 5 3 1 2 10A M–HTR/DEF I–UP 40A DEFOG DEF Relay 1 IA W HTR Relay R–W 1 2 2 IM B–W 3 3 2 1 5 3 6 IF 3 2 5 IM 10A A/C IG2 6 B–W ST2 4 B Noise Filter 1 5 AM2 3 15A CIG IG1 2 B–Y 1 AM1 W–B W L–W 4 40A HEATER ACC 3 L–R 3 R 5 3 1 2 10A GAUGE 2 IF I10 Ignition SW 10A ECU–IG IG1 Relay 15A WASHER 25A WIPER B B 1 1 2 1 B 4 IF 10 IH 15A EFI2 R–W W–B 1 W–B 2 W–B 1 10A HEAD LH LWR R–B 1 1 2 1 R 10A HEAD RH LWR R 1 1 2 1 R–W 10A HEAD LH UPR 1 2 10A HEAD RH UPR A 1 J6 Junction Connector R IE A A J7 Junction Connector IG 51 COROLLA (EM00H0U) Power Source : Parts Location Code See Page G2 Code See Page 32 (1ZZ–FE) I10 37 34 (2ZZ–GE) J6 37 Code J7 See Page 37 : Relay Blocks Code See Page Relay Blocks (Relay Block Location) 1 22 Engine Room R/B (Engine Compartment Left) 3 28 RH R/B (Right Side of the Instrument Panel Reinforcement) : Junction Block and Wire Harness Connector Code IA IB IF IH IM 1A 1B 1C 1D See Page 25 Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) 25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 24 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 22 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left) : Connector Joining Wire Harness and Wire Harness Code IA4 See Page 44 Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) : Ground Points Code See Page Ground Points Location IE 44 Behind the Combination Meter IG 44 Right Kick Panel 52 COROLLA (EM00H0U) Memo 53 COROLLA (EM00H0U) Starting and Ignition IG2 6 B–W ST2 4 R B–W R (A/T) R I10 Ignition SW (M/T) B 5 AM2 6 IM R II2 (A/T) R 12 15A AM2 (A/T) 3 IA2 2 3 IM A A A A R 1 1 IM 11 IL A2 Park/Neutral Position SW 5 R (A/T) (A/T) B–R ST Relay 2 IA4 J 2(A), J 3(B) Junction Connector R (A/T) R 3 (M/T) E B 4 IF 4 SRLY 5 2 11 IA5 11 II2 B B (∗1) (A/T) B 2 B T3 TVIP ECU 4 N (A/T) B 2 21 (M/T) 1 (∗1) S8 Starter Cut Relay B 1 (∗2) B B–R 3 1 B (∗1) (M/T) (∗1) P C8 Clutch Start SW B–R W–B B–W B (∗1) B (∗2) (∗2) B (∗1) B G A B (∗2) B B (∗2 M/T) B B (∗1) 1 B Battery 1 A S 2(A), S 3(B) Starter M W–B FL MAIN 2. 0L B–R G A J 2(A) Junction Connector II1 G A (A/T) 7 B 1 1A B 1 (∗1 M/T) 30A MAIN A J6 Junction Connector B (A/T) B IE 54 COROLLA (EM00H0U) (M/T) ∗ ∗ ∗ ∗ : w/ TVIP System : w/o TVIP System : 1ZZ–FE : 2ZZ–GE B–W B–W 1 2 3 4 5 IL B–W R (A/T) 12 IC B–W 10 EA1 Y–G GR 10 A STA 17 A (∗3) 12 A (∗4) IGT2 GND 4 A (∗3) 4 B (∗4) W–B IGT 3 A 3 B W–B H B J 2(A), J 3(B) Junction Connector F A F A IGT3 F A F A W R–L 9 A IGT1 IGF 2 A 2 B L–Y N1 Noise Filter (Ignition) R (A/T) 8 A NSW GND 4 A (∗3) 4 B (∗4) W–B 1 16 A IGF L–Y W–B 2 A 2 B W–B IGT W 3 A 3 B L–Y GND 4 A (∗3) 4 B (∗4) W–B L–Y IGF L–Y 2 A 2 B +B L–Y 3 A 3 B Y–G IGT I 5(A), (B) Ignition 1 A (∗3) Coil and 1 B (∗4) Igniter No. 4 L–Y GND 4 A (∗3) 4 B (∗4) GR 2 A 2 B W–B 3 A 3 B W–B IGF I 4(A), (B) Ignition 1 A (∗3) Coil and 1 B (∗4) Igniter No. 3 +B L–Y +B R–L +B B–W I 3(A), (B) Ignition 1 A (∗3) Coil and 1 B (∗4) Igniter No. 2 B–W I 2(A), (B) Ignition 1 A (∗3) Coil and 1 B (∗4) Igniter No. 1 IGT B–W B–W B–W B–W B–W B–W 24 A IGF1(∗3) IGF(∗4) 11 A IGT4 E 3(A) Engine Control Module W–B B (A/T) B (M/T) EC 55 COROLLA (EM00H0U) Starting and Ignition : Parts Location Code See Page A2 32 (1ZZ–FE) C8 36 E3 A 36 Code A I4 B 33 (1ZZ–FE) A 35 (2ZZ–GE) I2 33 (1ZZ–FE) B 35 (2ZZ–GE) A I5 B 33 (1ZZ–FE) A 35 (2ZZ–GE) I3 B See Page I10 Code 33 (1ZZ–FE) 35 (2ZZ–GE) 33 (1ZZ–FE) 35 (2ZZ–GE) 33 (1ZZ–FE) 37 33 (1ZZ–FE) N1 33 (1ZZ–FE) 35 (2ZZ–GE) See Page J6 35 (2ZZ–GE) S2 A S3 B 33 (1ZZ–FE) 35 (2ZZ–GE) 33 (1ZZ–FE) 35 (2ZZ–GE) 35 (2ZZ–GE) S8 37 37 T3 37 33 (1ZZ–FE) J2 A 37 35 (2ZZ–GE) J3 B 37 : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page IC 25 IF 25 IL IM 1A Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 24 22 Engine Wire and Engine Room J/B (Engine Compartment Left) : Connector Joining Wire Harness and Wire Harness Code EA1 See Page 42 (1ZZ–FE) 43 (2ZZ–GE) Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of the Engine Room R/B) IA2 IA4 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) IA5 II1 II2 : Ground Points Code EC IE See Page 42 (1ZZ–FE) 43 (2ZZ–GE) 44 Ground Points Location Left Side of the Cylinder Head Behind the Combination Meter 56 COROLLA (EM00H0U) Memo 57 COROLLA (EM00H0U) Charging B–G W B–W 5 IL 5 AM2 (IG) IG2 6 ST2 10A GAUGE B 8 IK B–O I10 Ignition SW 2 IG 32 3 IM Charge 15A AM2 C9 Combination Meter R–W 6 IM 22 3B 20 3B 14 II2 9 3B 1 1 10 3B W 2 5A ALT–S 2 100A ALT 2 1 Y 1 B A 30A MAIN 1 1B R–W B–R 2 IA4 Y R–W B–R W B–G 31 J 4(A), J 5(B) Junction Connector 2 II2 5 EA1 C B 1 R–W Y W 1 1A B B–G FL MAIN 2. 0L Battery 2 A 1 A 3 A 1 B IG L S B IC Regulator 58 COROLLA (EM00H0U) G 1(A), G 2(B) Generator : Parts Location Code See Page C9 G1 36 32 (1ZZ–FE) A 34 (2ZZ–GE) Code G2 See Page B I10 Code See Page 32 (1ZZ–FE) J4 A 37 34 (2ZZ–GE) J5 B 37 37 : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code IG See Page 25 IK IL Junction Block and Wire Harness (Connector Location) Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 24 IM 1A 1B 3B 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) : Connector Joining Wire Harness and Wire Harness Code EA1 See Page 42 (1ZZ–FE) 43 (2ZZ–GE) Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of the Engine Room R/B) IA4 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) II2 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) 59 COROLLA (EM00H0U) Engine Control for 1ZZ–FE B–O B–W B–W IG2 6 B–W ST2 4 R R B 5 AM2 B–W I10 Ignition SW B–R R–W B–W R–W B–W 10 EA1 B–W B–O B–W 12 IC 5 1 3 2 4 IG 19 ID 1 IG 6 IL G–R B–O 5 1 3 2 C/OPN Relay 1 B–R II1 1 1 M 5 W–B 20A EFI 1 9 B–R 2 30A MAIN 2 1 F10 Fuel Pump 1 15A EFI2 2 B 4 1 8 EA1 2 1 B B 1 1A B–R 1 B–R 2 IA4 W–B 8 IA7 B–R B–R B–R 1 10A ETCS 8 IK R–W R–W 3 IM 1 5 IL 1 EFI Relay 15A AM2 1 B–R 1 IA2 B–W R–W 6 IM B 3 EA1 9 EA1 FL MAIN 2. 0L B B–O G–R B Battery ED 60 COROLLA (EM00H0U) BH 16 A STA 5 B COROLLA (EM00H0U) 9 D 10 D 8 B L–R 17 A G–R +BM B–O NSW BATT B MREL (M/T) B–W R–W B–R Y B–Y Y R (A/T) R Y (A/T) R (M/T) B–W 1 A 2 A OC1+ IGSW C 2(A) Camshaft Timing Oil Control Valve (VVT) R–W OC1– FC GSW2 7 8 D 3 D 6 C 13 A 12 A 14 D 1 A13 Airbag Sensor Assembly B–W P1 Power Steering Oil Pressure SW G A A A B R A A (A/T) J 2(A), J 3(B) Junction Connector 3 (A/T) N R P A2 Park/Neutral Position SW R C8 Clutch Start SW R (M/T) 12 (A/T) 11 IA5 (A/T) 2 J 2(A) Junction Connector B B (M/T) 1 (A/T) B (M/T) 3 IA2 W–B B 11 (M/T) B–O B–O B–W B–W W–B R B–W B–R 22 II2 II II1 6 IJ F/PS E B E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module 4 PSW II2 G A B–O G–R B EC 61 Engine Control for 1ZZ–FE B–O B–O B–W B–W W–B W–B W–B B–W B–W W–B B–W W–B B–W W–B 4 A 1 A 4 A 1 A 4 A 1 A 4 A IGF 2 A F A J 2(A), J 3(B) Junction Connector GND IGT 3 A F A H B IGT2 W F A IGT 3 A L–Y F A IGF 2 A +B W IGF 2 A GND L–Y 9 A IGT1 IGT 3 A +B GR Y–G 8 A GND L–Y R–L L–Y IGF 2 A R–L IGT 3 A +B L–Y GND Y–G +B I 5(A) Ignition Coil and Igniter No. 4 W–B 1 A I 4(A) Ignition Coil and Igniter No. 3 B–W B–W I 3(A) Ignition Coil and Igniter No. 2 I 2(A) Ignition Coil and Igniter No. 1 B–W 10 A 24 A 11 A IGF1 IGT3 IGT4 E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module VPMP MPMP BR 1 ID2 BR 1 3 2 8 ID2 R M 8 9 Leak Detection Pump R 7 ID2 Vent Valve B II1 2 ID2 Canister Pressure Sensor 6 4 Y 5 B B B E2 1 6 9 ID2 2 4B B THA B 4 E2G 4 4B B 2 VG +B 2 B 3 1 4B B V3 VSV (Purge) 1 M1 Mass Air Flow Meter L5 Canister Pump Module L II2 BR L 17 21 D GR R 3 4B PPMP 4 D 27 A GR +B 1 D W–B THA 20 A B G L–B EVG 29 A L–W 30 A Y–B VG PRG 34 A BR B 6 ID2 Y B B B BI 62 COROLLA (EM00H0U) B–O B–O B–W ∗ 1 : Shielded II1 B–W 8 A25 Accel Position Sensor 9 IA7 10 IA7 20 IA7 11 IA7 21 IA7 22 IA7 Y G B Y B W L 2 B 2 A W 2 Y 2 A 29 D 23 D 27 D 28 D 22 D 26 D 1 A 2 A 3 A 4 A EPA2 VPA2 VCP2 EPA VPA VCPA # 10 # 20 I9 Injector No. 4 B–W 1 I 8(A) Injector No. 3 B–W 1 A I7 Injector No. 2 B–W 1 I 6(A) Injector No. 1 1 A B 6 G 5 Y 3 B 4 W 2 Y 1 B–W B–W B–W # 30 # 40 E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module E2 Engine Coolant Temp. Sensor GE01 VC HT1B 18 A 21 B P–B 17 B Y 4 B B M+ 3 B W M– OX1B 29 B M+ 5 B A VC E2 3 T6 Throttle Control Motor Throttle Position Sensor D B Y BR II2 H A 16 W (∗1) 2 A HT 4 A OX E +B 3 A 1 A II2 BR 8 H A BR H A BR H A B A II2 H 8(A) Heated Oxygen Sensor (Bank 1 Sensor 2) 2 M– 9 W 1 II2 B 4 VTA2 (∗1) 6 VTA1 BR 1 18 II2 P–B 6 BR F B BR J 2(A), J 3(B) Junction Connector F B (∗1) Y J 2(A), J 3(B) Junction Connector II2 (∗1) BR 2 BR 7 BR VTA2 31 A W BR VTA1 21 A LG THW 19 A LG E2 28 A Y B B B 63 COROLLA (EM00H0U) Engine Control for 1ZZ–FE B–O B–O (BAT) (BAT) 40A DEFOG (BAT) 15A TAIL 15A STOP 2 7 IH 1 14 IC 5 2 G–W G–W 1 IL W G 5 IC B 10 3 G G–B Head 11 3C 1 (USA) 3 Tail C12 Combination SW W 5 (USA) Light Control SW 2 OFF 13 3C Transponder Key Computer 3 S9 Stop Light SW 1 13 8 IL R–W G–W 3 G–W 10A M–HTR/ DEF I–UP 3 TAIL Relay G–W 3 (Canada) 2 (USA) DEF Relay G–W (USA) 26 C 27 C G (Canada) 12 D 13 D ELS2 19 C ELS1 STP IMO IMI E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module 33 B AF– +B 2 1 A B W C 3(A) Crankshaft Position Sensor 2 A E A 1 A E A A B C 1(A) Camshaft Position Sensor 4 AF+ (∗1) J 2(A), J 3(B) Junction Connector 3 (∗1) W B HT (∗1) 2 A (∗1) B A21 Air Fuel Ratio Sensor (Bank 1 Sensor 1) 1 24 B W (∗1) (∗1) G2+ NE– NE+ 25 B (∗1) E1 5 A BR W A1A– 31 B B A1A+ 23 B P HA1A 5 B BR (∗1) BR B 64 COROLLA (EM00H0U) B–O B–O W–G (∗2) : Shielded : w/ VSC, w/ ABS : w/ VSC : w/o VSC G B W B Y R W 18 A 10 B 4 A 9 B 3 A 40 B 17 A 39 B 20 A 15 B 6 A 16 B 5 A 44 B 19 A 45 B 25 D ENG+ NEO S 1(A), (B) Skid Control ECU with Actuator (∗3) W L 30 D SP1 TRC– (∗3) (∗3) R–Y 17 D VSC+ 16 IA7 RR– 12 A (∗3) 18 B (∗4) 17 IA7 (∗3) B–W 24 D THE RR+ 22 A W B–L 32 C HP 4 IA7 RL– ENG– 23 A L Y 1 C A/CS RL+ (∗3) Y 28 C ACLD NEO (∗3) G–W 33 C ACMG FR– 10 A 6 IA7 R–W Y–B 2 C R–W (∗3) B–W LG 16 B CF TRC+ 8 A (∗3) LG–B 14 A FR+ (∗3) A/C Thermistor Pressure SW ENG+ 9 A 5 IA7 FAN FL– R–Y FL+ (∗3) A/C SW Defroster Mode Detection SW R ABS Speed Sensors A/C SW Defroster Mode Detection SW M/G CLT Relay 1 2 3 4 FAN NO. 1 Relay FAN NO. 2 Relay ∗ ∗ ∗ ∗ 31 D ENG– VSC– E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module EC 35 B W–B W–B E01 7 A W–B E02 6 A W–B E03 6 B W–B ME01 2 B W–B E04 7 B W EKNK 28 B B (∗1) KNK1 1 B (∗1) 2 (∗1) II1 K1 Knock Sensor (Bank 1) 1 1 A B A B A A A A A A B B C A C A BR BR W–B BR W–B (∗1) A B J 4(A), J 5(B) Junction Connector (∗1) A B J 4(A), J 5(B) Junction Connector (∗1) BR A J7 Junction Connector EB EC IG 65 COROLLA (EM00H0U) Engine Control for 1ZZ–FE B–O W–G W–G (∗2) (∗2) (BAT) (BAT) 7. 5A OBD 15A DOME 2 1 R–B 13 16 SIL TC L–W P–B 7 BAT 4 IL D1 Data Link Connector 3 SG CG 5 4 4 Malfunction Indicator Lamp W–B W–B 33 8 19 10 9 W–G 21 4B V–W R–Y 13 4B B Y–R EOM 15 D Y–R 11 D R–Y 14 C 16 4B W–B 5 D B W 17 C V–W THWO II2 BR E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module TACH 5 WFSE 10 SPD C9 Combination Meter Speedometer 19 D SIL 32 W–B 18 D TC BR P WFSE 20 D 19 4C R–W 15 L–R 3 3B P–B 4 4C 20 4C L–W 2 3B 7 IC Tachometer 3 4C L–R L–W B–O 7 IJ 8 4C W–G 9 4C W–B BR J6 Junction Connector A IE 66 COROLLA (EM00H0U) (IG) W–G (∗2) ∗ 2 : w/ VSC, w/ ABS ∗ 5 : Except ∗2 10A GAUGE R–W 2 IG 22 3B 20 3B (∗2) II2 J 4(A), J 5(B) Junction Connector 14 (∗5) (∗2) W–G 14 IA6 R–W W–G R–W R–W (∗5) 16 3B B A C B J 2(A), J 3(B) Junction Connector (∗5) W–G W–G BR (∗5) (∗5) II2 2 BR 1 (∗5) 3 (∗5) C B W–G 4 R–W C A V1 Vehicle Speed Sensor (Combination Meter) EB 67 COROLLA (EM00H0U) Engine Control for 1ZZ–FE System Outline The engine control system utilizes a microcomputer and maintains overall control of the engine, etc. An outline of engine control is given here. 1. Input Signals (1) Engine coolant temp. signal system The engine coolant temp. sensor detects the engine coolant temp. and has a built–in thermistor with a resistance which varies according to the engine coolant temp. Thus the engine coolant temp. is input as a control signal to TERMINAL THW of the engine control module. (2) Intake air temp. signal system The intake air temp. sensor is installed in the mass air flow meter and detects the intake air temp., which is input as a control signal to TERMINAL THA of the engine control module. (3) Power steering oil pressure signal system Power steering oil pressure is detected by the power steering oil pressure SW and is input as a control signal to TERMINAL PSW of the engine control module. (4) RPM signal system Camshaft position and crankshaft position are detected by the camshaft position sensor and crankshaft position sensor. Camshaft position is input as a control signal to TERMINAL G2 of the engine control module, and engine RPM is input into TERMINAL NE+. (5) Throttle signal system The throttle position sensor detects the throttle valve opening angle, which is input as a control signal to TERMINALS VTA1 and VTA2 of the engine control module. (6) Vehicle speed signal system The vehicle speed is detected by the ABS speed sensor and the signal is input to TERMINAL SPD of the engine control module via the comb. meter and the skid control ECU with actuator. (w/ VSC, w/ ABS) The vehicle speed is detected by the vehicle speed sensor installed in the transaxle and the signal is input to TERMINAL SPD of the engine control module via the comb. meter. (w/o VSC, w/o ABS) (7) NSW signal system (A/T) The Park/Neutral position SW detects whether the shift position is in neutral or not, and inputs a control signal to TERMINAL NSW of the engine control module. (8) A/C SW signal system The operating voltage of the A/C SW is detected and is input as a control signal to TERMINAL A/CS of the engine control module. (9) Battery signal system Voltage is constantly applied to TERMINAL BATT of the engine control module. When the ignition SW is turned to on, voltage for engine control module operation is applied via the EFI relay to TERMINAL +B of the engine control module. (10) Intake air volume signal system Intake air volume is detected by the mass air flow meter, and is input as a control signal to TERMINAL VG of the engine control module. (11) STA signal system To confirm that the engine is cranking, the voltage applied to the starter motor during cranking is detected and is input as a control signal to TERMINAL STA of the engine control module. (12) Oxygen sensor signal system The oxygen density in the exhaust gases is detected and is input as a control signal into TERMINAL OX1B of the engine control module. To maintain stable detection performance by the oxygen sensor, a heater is used for warming the sensor. The heater is also controlled by the engine control module (HT1B). (13) Air fuel ratio signal circuit The air fuel ratio is detected and input as a control signal into TERMINAL A1A+ of the engine control module. (14) Engine knock signal system Engine knocking is detected by the knock sensor and input as a control signal to TERMINAL KNK1 of the engine control module. (15) Electrical load signal system When systems which cause a high electrical load such as the rear window defogger, taillight are turned on, a signal is input to TERMINALS ELS and ELS2 as a control signal. 68 COROLLA (EM00H0U) 2. Control System ∗ SFI system The SFI system monitors the engine conditions through the signals, which are input from each sensor to the engine control module. Based on this data and the program memorized in the engine control module, the most appropriate fuel injection timing is decided and current is output to TERMINALS #10, #20, #30 and #40 of the engine control module, operating the injectors (to inject fuel). This is the system which finely controls the fuel injection in response to the driving conditions, through the engine control module. ∗ ESA system The ESA system monitors the engine conditions using the signals, which are input to the engine control module from each sensor. Based on this data and the program memorized in the engine control module, the most appropriate ignition timing is decided and current is output to TERMINALS IGT1, IGT2, IGT3 and IGT4 of the engine control module. This output controls the ignition coil and igniter No. 1 , No. 2 , No. 3 and No. 4 to produce the most appropriate ignition timing for the driving conditions. ∗ Knock control system Knock control system controls the gate based on the engine rotation speed and detects knocking by the peak value of the knock sensor output during the gate open period, and then controls it to the most suitable ignition timing in proportion to the driving condition. ∗ Evapoparge control system This system leads the vapor stuck to the canister to the serge tank in order not to agitate the air fuel by adjusting the fuel injection volume. The signal at this time will be output from TERMINAL PRG of the engine control module to VSV (Purge). 3. Diagnosis System With the diagnosis system, when there is a malfunctioning in the engine control module signal system, the malfunction system is recorded in the memory. The malfunctioning system can be found by reading the display (Code) of the malfunction indicator lamp. 4. Fail–Safe System When a malfunction occurs in any system, if there is a possibility of engine trouble being caused by continued control based on the signals from that system, the fail–safe system either controls the system by using the data (Standard values) recorded in the engine control module memory or else stops the engine. : Parts Location Code See Page Code A2 32 (1ZZ–FE) E6 A13 36 A21 32 (1ZZ–FE) A25 36 H8 See Page D F10 Code 36 J4 38 (*1) J5 See Page A 37 B 37 40 (*2) J6 37 A 37 J7 37 K1 33 (1ZZ–FE) C1 A 32 (1ZZ–FE) I2 A 33 (1ZZ–FE) C2 A 32 (1ZZ–FE) I3 A 33 (1ZZ–FE) C3 A 32 (1ZZ–FE) I4 A 33 (1ZZ–FE) C8 36 I5 A 33 (1ZZ–FE) M1 C9 36 I6 A 33 (1ZZ–FE) P1 C12 36 D1 36 E2 32 (1ZZ–FE) I9 33 (1ZZ–FE) S9 37 I10 37 T6 33 (1ZZ–FE) I7 33 (1ZZ–FE) I8 A 33 (1ZZ–FE) 38 (*1) L5 S1 40 (*2) 33 (1ZZ–FE) 33 (1ZZ–FE) A 33 (1ZZ–FE) B 33 (1ZZ–FE) E3 A 36 E4 B 36 J2 A 37 V1 33 (1ZZ–FE) E5 C 36 J3 B 37 V3 33 (1ZZ–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) 1 22 Engine Room R/B (Engine Compartment Left) 3 28 RH R/B (Right Side of the Instrument Panel Reinforcement) * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 69 COROLLA (EM00H0U) Engine Control for 1ZZ–FE : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) IC 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) ID 25 Floor Wire and Instrument Panel J/B (Lower Finish Panel) IG IH II 25 IJ Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) IK IL 24 IM 1A 3B 3C 4B 4C 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) : Connector Joining Wire Harness and Wire Harness Code EA1 See Page Joining Wire Harness and Wire Harness (Connector Location) 42 (1ZZ–FE) Engine Wire and Engine Room Main Wire (Inside of the Engine Room R/B) 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) 44 Instrument Panel Wire and Floor Wire (Left Kick Panel) 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) IA2 IA4 IA5 IA6 IA7 ID2 II1 II2 : Ground Points Code EB See Page Ground Points Location 42 (1ZZ–FE) Left Side of the Cylinder Head ED 42 (1ZZ–FE) Front Left Suspension Tower IE 44 Behind the Combination Meter IG 44 Right Kick Panel EC BH BI 46 (*1) 47 (*2) 46 (*1) 47 (*2) Under the Left Quarter Pillar Lower Back Panel * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 70 COROLLA (EM00H0U) Memo 71 COROLLA (EM00H0U) Engine Control for 2ZZ–GE B–O B–W B–W IG2 6 B–W ST2 4 R 5 AM2 B–W I10 Ignition SW R R 1 1 B–W EFI Relay 3 2 2 1 B R–W R–W 15A AM2 5 1 1 1 11 IA5 2 IA4 8 IK B B 5 IL B B–R 3 IM 2 4 IG 19 ID 1 IG 6 IL W–B B B–O B–R 1 3 II2 B 1 B–O 3 15A EFI 1 1 2 G–R 2 50A AIR PUMP 2 1 C/OPN Relay 1 1 B–R 1 5 B 2 A24 Air Pump Relay 4 B B–R 11 30A MAIN C8 Clutch Start SW B–W 3 IA2 B–O 6 IM 3 EA1 B–W R–W B R–W B FL MAIN 2. 0L 2 4 M 9 EA1 9 II1 1 F10 Fuel Pump A22 Air Pump Motor B 1 1A M B–O 5 W–B B B W–B G–R B W–B Battery W–B B–O EK EL ED 72 COROLLA (EM00H0U) BH B–O B–O B–W B–W B–W W–B 4 B 1 B 4 B 1 B 4 B 1 B 4 B +B IGT 3 B GND IGF 2 B +B GND IGT IGF 3 B 2 B +B GND IGF 2 B IGT 3 B I 5(B) Ignition Coil and Igniter No. 4 W–B 1 B I 4(B) Ignition Coil and Igniter No. 3 I 2(B) Ignition Coil and Igniter No. 1 R–W I 3(B) Ignition Coil and Igniter No. 2 B–W B–W B–W W–B B–W B–W B–W W–B W–B B–W W–B B–W B–W W–B +B GND IGF IGT 2 B 3 B Y–G 8 A 9 A MREL IGT1 H B J 2(A), J 3(B) Junction Connector W L–Y GR F A W R–L 4 C F A L–Y B–W 3 D F A GR R–W F A BATT L–Y L–Y 10 A 24 A 11 A L–Y II1 L–Y 3 R–L Y–G 1 IA2 IGT3 IGT2 IGT4 IGF E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module B–L L–B AIRV 4 D B–L 19 B W–B PRG 16 A 2 IA5 B B B B B–O 1 DUTY GND VISC 3 2 II3 B–L C A 1 V3 VSV (Purge) C A I1 Idle Air Control Valve B J 4(A), J 5(B) Junction Connector 7 2 2 V5 VSV (Air Pump) RSO E02 6 A W–B E01 7 A W–B E03 7 B B–O AIRP 5 D G–R FC 16 C B–O IGSW 9 D B W–B STA 12 A B B B B B W–B B W–B W–B B–O 1 G–R B B B–O EC 73 COROLLA (EM00H0U) Engine Control for 2ZZ–GE B–O B–O B–W (BAT) 40A DEFOG II1 B–W 8 2 3 DEF Relay 2 C15 Camshaft Timing Oil Control Valve (VVTL) B L–Y W 8 IL B–Y 2 Y 2 B L 2 10A M–HTR/ DEF I–UP W 2 B 1 B 2 5 Y 2 B 1 B C 2(B) Camshaft Timing Oil Control Valve (VVT) 1 I9 Injector No. 4 B–W 1 B I 8(B) Injector No. 3 B–W 1 I7 Injector No. 2 1 B I 6(B) Injector No. 1 B–W B–W B–W B–W 1 1 A 2 A 3 A 4 A 14 A 13 A 17 B 16 B 13 D # 10 # 20 # 30 # 40 OCI+ OCI– VVL+ ELS2 VVL– E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module ACLV EC 15 A 28 B PSW VG OSW 31 C 30 B 30 A EVG 29 A THA THW 20 A E2 19 A 28 A B–W +B E2 B B BR F B F B H A H A H A H A 1 BR BR B BR BR W BR B W–B 5 2 BR THA II2 BR 4 E2G 7 J 2(A), J 3(B) Junction Connector 2 VG 1 B Y–B 3 E2 Engine Coolant Temp. Sensor 1 1 L–W II3 M1 Mass Air Flow Meter V4 VSV (ACIS) 1 P1 Power Steering Oil Pressure SW 2 G 9 1 ID2 O2 Oil Pressure SW (VVTL) II1 B–W 1 L–R L–W W–B BR BR B A J7 Junction Connector BR IG 74 COROLLA (EM00H0U) B–O B–O (BAT) (BAT) GSW2 3 2 13 C12 Combination SW 1 IL II L–W 5 IC 7 G–W G–W 3 G G–B Head 11 3C 1 (USA) 3 Tail (USA) Light Control SW 5 G–W 2 OFF 13 3C IDL 13 Y 3 S9 Stop Light SW 1 22 TAIL Relay G–W (Canada) 3 (w/ Cruise Control) G–W (USA) R–W G–W (USA) 6 IJ 10 C14 Cruise Control ECU 14 IC 7 IH A13 Airbag Sensor Assembly 15A STOP 15A TAIL G G Y (Canada) 12 D 19 C ELS 14 D STP 7 C F/PS IDLO E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module VTA 21 A LG 18 A Y GR L5 Canister Pump Module 2 VC VPMP 25 A R BR PPMP 21 D L MPMP 8 B Y II2 8 R 7 ID2 6 ID2 3 1 D B 16 II2 3 T1 Throttle Position Sensor D B 2 1 BR B A J 2(A), J 3(B) Junction Connector B A Y 8 ID2 Y 9 ID2 R R 17 GR GR 2 ID2 Vent Valve 4 Y 9 W–B 6 B M Leak Detection Pump Canister Pressure Sensor II2 L 6 Y B Y BR B B W–B B BR BR BI 75 COROLLA (EM00H0U) VC E2 6 HP 32 C 34 C AIP 1 4B 1 Y II1 THE 2 4B 4 4B 27 A NE+ 1 D +B 6 B 3 4B 4 II2 2 HT B 76 COROLLA (EM00H0U) R B–L 27 B HT1A 18 R Y 10 D (∗1) Y 33 C W B (∗1) C 3(B) Crankshaft Position Sensor 1 +B 3 E 34 A 9 B C 1(B) Camshaft Position Sensor A B W (∗1) W E A W J 2(A), J 3(B) Junction Connector E A W A/C Thermistor Pressure SW A/C SW Defroster Mode Detection SW A/C SW Defroster Mode Detection SW M/G CLT Relay FAN NO. 1 Relay FAN NO. 2 Relay Transponder Key Computer 1 B (∗1) A/CS P G–W 5 C 2 B (∗1) PIM ACLD P Y–B 21 B H5 Heated Oxygen Sensor (Bank 1 Sensor 1) LG 9 B B B LG–B 27 C BR 2 ACMG (∗1) 3 CF B 8 FAN B IMI B IMO A23 Air Pump Pressure Sensor G W 26 C B B BR G B Engine Control for 2ZZ–GE B–O B–O ∗ 1 : Shielded 1 B 2 B (∗1) (∗1) NE– 26 A G2+ E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module 22 B OX1A II3 II2 5 4B 4 OX II2 B BR B BR BR B–O B–O D1 Data Link Connector 3 (BAT) 7. 5A OBD SIL TC 7 13 WFSE SG CG 15 5 4 BAT 16 R–B 4 4C 10 R–B 3 3B W–B 3 4C BR P–B 2 3B P L–R 7 IJ II2 L–R P–B P BR 15 C 20 D 19 D (∗1) (∗1) TC WFSE W–B SIL E 3(A), E 4(B), E 5(C), E 6(D) Engine Control Module 16 4B HT1B OX1B 7 D E1 23 C 5 A KNK1 1 B EKNK 2 B SPD 17 C TACH 3 C THWO 14 C W 11 D EOM 13 4B 21 4B 15 D R–Y Y–R B V–W W B BR W (∗1) P–B W–B R–Y Y–R B A A A A A A A A W–B A B J 4(A), J 5(B) Junction Connector A B BR BR A A 2 A B BR E1 3 B (∗1) +B 1 B A B BR 1 (∗1) OX (∗1) HT II3 4 B K1 Knock Sensor (Bank 1) 6 2 B BR H 8(B) Heated Oxygen Sensor (Bank 1 Sensor 2) (∗1) V–W BR BR BR BR BR BR II2 A EB J6 Junction Connector 8 B IE 77 COROLLA (EM00H0U) Engine Control for 2ZZ–GE B–O (BAT) (IG) 10A GAUGE 15A DOME 2 2 IG B–O L–W R–W 1 22 3B 20 4C L–W 7 IC 16 3B 19 4C L–W 4 IL 5 4 10 R–Y 9 W–G 19 V–W 8 B 33 Y–R C9 Combination Meter Malfunction Indicator Lamp Tachometer Speedometer 32 R–W 8 4C Y–R B 9 4C W–G V–W ABS Speed Sensors G B W B Y R W 10 B 9 B 40 B 39 B 15 B 16 B 44 B 45 B FL+ FL– FR+ FR– RL+ RL– RR+ RR– W–G R 14 IA6 18 B SP1 S 1(B) Skid Control ECU with Actuator 78 COROLLA (EM00H0U) System Outline The engine control system utilizes a microcomputer and maintains overall control of the engine, etc. An outline of engine control is given here. 1. Input Signals (1) Engine coolant temp. signal system The engine coolant temp. sensor detects the engine coolant temp. and has a built–in thermistor with a resistance which varies according to the engine coolant temp. Thus the engine coolant temp. is input as a control signal to TERMINAL THW of the engine control module. (2) Intake air temp. signal system The intake air temp. sensor is installed in the mass air flow meter and detects the intake air temp., which is input as a control signal to TERMINAL THA of the engine control module. (3) Power steering oil pressure signal system Power steering oil pressure is detected by the power steering oil pressure SW and is input as a control signal to TERMINAL PSW of the engine control module. (4) RPM signal system Camshaft position and crankshaft position are detected by the camshaft position sensor and crankshaft position sensor. Camshaft position is input as a control signal to TERMINAL G2+ of the engine control module, and engine RPM is input into TERMINAL NE+. (5) Throttle signal system The throttle position sensor detects the throttle valve opening angle, which is input as a control signal to TERMINAL VTA of the engine control module. (6) Vehicle speed signal system The vehicle speed is detected by the ABS speed sensor and the signal is input to TERMINAL SPD of the engine control module via the comb. meter and the skid control ECU with actuator. (w/ ABS) The vehicle speed is detected by the vehicle speed sensor installed in the transaxle and the signal is input to TERMINAL SPD of the engine control module via the comb. meter. (w/o ABS) (7) A/C SW signal system The operating voltage of the A/C SW is detected and is input as a control signal to TERMINAL A/CS of the engine control module. (8) Battery signal system Voltage is constantly applied to TERMINAL BATT of the engine control module. When the ignition SW is turned to on, voltage for engine control module operation is applied via the EFI relay to TERMINAL +B of the engine control module. (9) Intake air volume signal system Intake air volume is detected by the mass air flow meter, and is input as a control signal to TERMINAL VG of the engine control module. (10) STA signal system To confirm that the engine is cranking, the voltage applied to the starter motor during cranking is detected and is input as a control signal to TERMINAL STA of the engine control module. (11) Oxygen sensor signal system The oxygen density in the exhaust gases is detected and is input as a control signal into TERMINALS OX1A and OX1B of the engine control module. To maintain stable detection performance by the oxygen sensor, a heater is used for warming the sensor. The heater is also controlled by the engine control module (HT1A and HT1B). (12) Engine knock signal system Engine knocking is detected by the knock sensor and input as a control signal to TERMINAL KNK1 of the engine control module. (13) Electrical load signal system When systems which cause a high electrical load such as the rear window defogger, taillight are turned on, a signal is input to TERMINALS ELS and ELS2 as a control signal. 79 COROLLA (EM00H0U) Engine Control for 2ZZ–GE 2. Control System ∗ SFI system The SFI system monitors the engine conditions through the signals, which are input from each sensor to the engine control module. Based on this data and the program memorized in the engine control module, the most appropriate fuel injection timing is decided and current is output to TERMINALS #10, #20, #30 and #40 of the engine control module, operating the injectors (to inject fuel). This is the system which finely controls the fuel injection in response to the driving conditions, through the engine control module. ∗ ESA system The ESA system monitors the engine conditions using the signals, which are input to the engine control module from each sensor. Based on this data and the program memorized in the engine control module, the most appropriate ignition timing is decided and current is output to TERMINALS IGT1, IGT2, IGT3 and IGT4 of the engine control module. This output controls the ignition coil and igniter No. 1 , No. 2 , No. 3 and No. 4 to produce the most appropriate ignition timing for the driving conditions. ∗ IAC system The IAC system increases the RPM and provides idle stability for fast idle–up when the engine is cold, and when the idle speed has dropped due to electrical load and so on. The engine control module evaluates the signals from each sensor, and outputs current to TERMINAL RSO to control the idle air control valve. ∗ Knock control system Knock control system controls the gate based on the engine rotation speed and detects knocking by the peak value of the knock sensor output during the gate open period, and then controls it to the most suitable ignition timing in proportion to the driving condition. ∗ Evapoparge control system This system leads the vapor stuck to the canister to the serge tank in order not to agitate the air fuel by adjusting the fuel injection volume. The signal at this time will be output from TERMINAL PRG of the engine control module to VSV (Purge). 3. Diagnosis System With the diagnosis system, when there is a malfunctioning in the engine control module signal system,the malfunction system is recorded in the memory. The malfunctioning system can be found by reading the display (Code) of the malfunction indicator lamp. 4. Fail–Safe System When a malfunction occurs in any system, if there is a possibility of engine trouble being caused by continued control based on the signals from that system, the fail–safe system either controls the system by using the data (Standard values) recorded in the engine control module memory or else stops the engine. : Parts Location Code See Page A13 36 A22 34 (2ZZ–GE) A23 34 (2ZZ–GE) A24 Code E6 See Page D F10 34 (2ZZ–GE) J4 38 (*1) J5 40 (*2) H5 H8 Code 36 B See Page A 37 B 37 J6 37 37 J7 37 37 K1 35 (2ZZ–GE) C1 B 34 (2ZZ–GE) C2 B 34 (2ZZ–GE) C3 B 34 (2ZZ–GE) I2 B 35 (2ZZ–GE) C8 36 I3 B 35 (2ZZ–GE) M1 35 (2ZZ–GE) C9 36 I4 B 35 (2ZZ–GE) O2 35 (2ZZ–GE) C12 36 I5 B 35 (2ZZ–GE) P1 35 (2ZZ–GE) C14 36 I6 B 35 (2ZZ–GE) C15 34 (2ZZ–GE) D1 36 E2 34 (2ZZ–GE) I1 35 (2ZZ–GE) I7 S1 40 (*2) B 35 (2ZZ–GE) 35 (2ZZ–GE) S9 37 35 (2ZZ–GE) T1 35 (2ZZ–GE) I9 35 (2ZZ–GE) V3 35 (2ZZ–GE) I10 37 V4 35 (2ZZ–GE) V5 35 (2ZZ–GE) I8 B E3 A 36 E4 B 36 J2 A 37 E5 C 36 J3 B 37 * 1 : w/ Side Airbag and/or Stereo Component Amplifier 38 (*1) L5 * 2 : w/o Side Airbag and Stereo Component Amplifier 80 COROLLA (EM00H0U) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) 1 22 Engine Room R/B (Engine Compartment Left) 3 28 RH R/B (Right Side of the Instrument Panel Reinforcement) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) IC 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) ID 25 Floor Wire and Instrument Panel J/B (Lower Finish Panel) IG IH II 25 IJ Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) IK IL 24 IM 1A 3B 3C 4B 4C 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) : Connector Joining Wire Harness and Wire Harness Code See Page EA1 43 (2ZZ–GE) Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of the Engine Room R/B) 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) 44 Instrument Panel Wire and Floor Wire (Left Kick Panel) 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) IA2 IA4 IA5 IA6 ID2 II1 II2 II3 : Ground Points Code EB See Page Ground Points Location 43 (2ZZ–GE) Left Side of the Cylinder Head ED 43 (2ZZ–GE) Front Left Suspension Tower EK 43 (2ZZ–GE) Front Left Fender EL 43 (2ZZ–GE) Front Left Suspension Tower IE 44 Behind the Combination Meter IG 44 Right Kick Panel EC BH BI 46 (*1) 47 (*2) 46 (*1) 47 (*2) Under the Left Quarter Pillar Lower Back Panel * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 81 COROLLA (EM00H0U) Engine Immobiliser System ∗ 1 : w/ TVIP System ∗ 2 : w/o TVIP System IG2 6 5 AM2 B–W B R–B ST2 I10 Ignition SW 1 IH 6 IM D1 Data Link Connector 3 15A AM2 10A ECU–B E5 Engine Control Module IMO IMI W L–R 2 1 12 13 9 B–R B 7 R–B 3 IM 1 IB SIL 27 B–W 26 IG +B EFII EFIO D W 2 IA4 TXCT 4 AGND 5 VC5 14 GND 16 IND KSW CTY 8 3 7 3 IL R–W 1 ID W–B B FL MAIN 2. 0L 7 AGND T9 Transponder Key Amplifier 1 1 2 VC5 U1 Unlock Warning SW 5 TXCT W–B 4 CODE 1 19 3A W–B Battery W–B 11 3A A A J7 Junction Connector IG 82 COROLLA (EM00H0U) J6 Junction Connector IE D4 Door Courtesy SW Front LH 1 1A 1 A (∗1) 1 B (∗2) R–W 1 S 4(A), (B) Security Indicator W–B GR Y G 2 A (∗1) 3 B (∗2) L 30A MAIN 2 100A ALT 2 R–W 1 1 1C 1 CODE 15 L–B B–R T10 Transponder Key Computer : Parts Location Code See Page D1 D4 E5 Code See Page Code I10 37 38 (*1) J6 37 T9 37 40 (*2) J7 37 T10 37 37 U1 37 36 S4 A S4 See Page 36 B 37 : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) IB 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) ID 25 Floor Wire and Instrument Panel J/B (Lower Finish Panel) IH 25 IL IM Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 24 1A 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 1C 22 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left) 3A 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) : Connector Joining Wire Harness and Wire Harness Code IA4 See Page 44 Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) : Ground Points Code See Page Ground Points Location IE 44 Behind the Combination Meter IG 44 Right Kick Panel * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 83 COROLLA (EM00H0U) Headlight L–W (IG) (BAT) R–W 15A DOME 10A ECU–B 10A GAUGE (BAT) A18 Automatic Light Control Sensor 2 1 CLTE 4 3 (∗1) CSE (∗1) W–B R 2 R–W Y 6 3C E HI 16 7 8 3B (∗1) 18 CSO H D2 Daytime Running Light Relay 15 G–W G–W 19 CSB T 8 G–R G–Y 20 IG 2 IE1 (∗1) R–W 12 3 IE1 G–O R–B 1 IE1 3 CHG– (∗1) 16 3B 12 3B +B G–B G–Y 22 3B (∗1) R–B CLTS 1 R–W L–W CLTB (∗1) 2 IG R–W 1 IH 10 3B 5 3C 4 3C R–W 2 R Y R 8 9 II2 3 IA4 12 Dimmer SW Tail Head Low High Flash W–B G1 Generator 10 W–B C12 Combination SW 11 W–B L OFF (∗1) 1 Light Control SW Y 13 11 4B 21 4B A A W–B A (∗1) IE 84 COROLLA (EM00H0U) W–B W–B J6 Junction Connector ED L–W L–W R–W R–W ∗ ∗ ∗ ∗ ∗ ∗ 1 2 3 4 5 6 R–B : USA : w/ VSC, w/ ABS : Except ∗2 : w/ Fog Light : w/ VSC : w/o VSC (BAT) 40A HEAD MAIN 1 1 R R R–B Combination SW 2 P3 Parking Brake SW 1 G–O 11 4 PKB 3 (∗4) R–B 1 1 HEAD Relay D2 Daytime Running Light Relay FOG 2 5 H–LP 6 (∗2) R–B DRL 1 R–B 1 1 R–Y BRK 10 R–W 5 (∗3) HIND R–W W–R (∗1) G–B DIM 13 R TAIL 14 1 R–B R–Y 1 1 10A HEAD LH LWR 15 IA5 15 IA5 1 IA4 4 IA2 R–Y R–B (∗2) (∗3) R–W 2 R–W 10A HEAD RH LWR 2 1 1 2 1 1 R–B 2 H4 Headlight RH (Low) R R–W 2 H2 Headlight LH (Low) PKB R–B B2 Brake Fluid Level Warning SW 1 (∗3) R–W B 28 A (∗5) 23 B (∗6) S 1(A), (B) Skid Control ECU with Actuator J1 Junction Connector B R–B W–B(∗3) W–B(∗3) R W–R G–B(∗1) W–B W–B 85 COROLLA (EM00H0U) Headlight L–W ∗ 1 : USA ∗ 2 : w/ VSC, w/ ABS ∗ 3 : Except ∗2 R–W R–B (BAT) R–B L–W 15A TAIL 7 IH G–W (∗1) 1 3 1 3 1 5 2 L–W 10A HEAD RH UPR 2 2 1 1 R R R–W 19 4C 7 B R W–R G 13 A C 9(A), C16(B) Combination Meter R–W 18 A (∗1) L–W 4 A HEAD (USA) R 5 A High Beam 14 A W–B H3 Headlight RH (High) 2 10 IA2 W–B 1 W–B 1 R H1 Headlight LH (High) R–W 6 IA6 W–B(∗3) R W–R G–B(∗1) W–B W–B W–B W–B 5 2 3 1 3 EA 86 COROLLA (EM00H0U) (∗1) G–B G (∗1) W–R R 20 4C ED 1 1 1 2 3 TAIL Relay 4 IL 10A HEAD LH UPR 3 DIMMER Relay 1 (∗1) R–B 7 IC 1 G–W R System Outline The current is always flowing from the HEAD MAIN fuse to HEAD relay (Coil side) to TERMINAL 6 of the daytime running light relay, from ECU–B fuse to TERMINAL 3 of the daytime running light relay and from the TAIL fuse to TAIL relay (Coil side) to TERMINAL 14 of the daytime running light relay (USA). When the ignition SW is turned on, the current flowing through the GAUGE fuse flows to TERMINAL 12 of the daytime running light relay. 1. Daytime Running Light Operation When the engine is started, voltage generated at TERMINAL L of the generator is applied to TERMINAL 8 of the daytime running light relay. If the parking brake lever is pulled up (Parking brake SW on) at this time, the relay is not activated so the daytime running light system does not operate. If the parking brake lever is then released (Parking brake SW off), a signal is input to TERMINAL 11 of the relay. This activates the daytime running light relay and the HEAD relay is turned to on, so the current flows from the HEAD MAIN fuse to the HEAD relay (Point side) to HEAD LH LWR, HEAD RH LWR fuses to TERMINAL 2 of the headlights to TERMINAL 1 to TERMINAL 1 of the daytime running light relay to TERMINAL 2 to GROUND, causing the headlights to light up (Headlights light up dimmer than normal brightness.). Once the daytime running light system operates and the headlights light up, the headlights remain on even if the parking brake lever is pulled up (Parking brake SW on). If the engine stalls and the ignition SW remains on, the headlights remain light up even through current is no longer output from TERMINAL L of the generator. If the ignition SW is then turned off, the headlights go off. If the engine is started with the parking brake lever released (Parking brake SW off), the daytime running light system operates and headlights light up when the engine starts. 2. Headlight Operation When the light control SW is switched to HEAD position and the dimmer SW is set to LOW position, causing the daytime running light relay and the HEAD relay to turn on, so the current flows from the HEAD MAIN fuse to HEAD relay (Coil side) to TERMINAL 6 of the daytime running light relay to TERMINAL 7 to TERMINAL 12 of the light control SW to TERMINAL 11 to GROUND. The current to HEAD relay (Point side) then flows to HEAD LH LWR, HEAD RH LWR fuses to TERMINAL 2 of the headlights (Low) to TERMINAL 1 to TERMINAL 1 of the daytime running light relay to TERMINAL 2 to GROUND, causing the headlights to light up at normal intensity and HEAD indicator light to light up. When the light control SW is switched to HEAD position and the dimmer SW is set to HIGH position, the signal from the dimmer SW is input to the daytime running light relay. This activates the daytime running light relay and the HEAD relay is turned on, so the current flows from the HEAD MAIN fuse to HEAD relay (Point side) to TERMINAL 1 of the DIMMER relay to TERMINAL 2 to TERMINAL 13 of the daytime running light relay, activating the DIMMER relay. This causes current to flow from TERMINAL 3 of the DIMMER relay to TERMINAL 5 to HEAD LH UPR, HEAD RH–UPR fuses to TERMINAL 2 of the headlights (High) to TERMINAL 1 to GROUND, causing the headlights to light up at high beam and the high beam indicator light to light up and HEAD indicator light to light up. When the dimmer SW is switched to FLASH position, the signal from the dimmer SW is input to the daytime running light relay. This activates the daytime running light relay and the HEAD relay is turned on, so the current flows from the HEAD MAIN fuse to HEAD relay (Point side) to TERMINAL 1 of the DIMMER relay to TERMINAL 2 to TERMINAL 13 of the daytime running light relay, activating the DIMMER relay, and also flows from the HEAD LH UPR, HEAD RH UPR fuses to TERMINAL 2 of the headlights to TERMINAL 1 to GROUND, causing the headlights to light up at high beam and the high beam indicator light to light up. 3. Automatic Light Control Operation (USA) When the daytime running light is operating and the automatic control sensor detects a decrease in the ambient light, the automatic light control operation starts. At the same time, daytime running light relay is activated, so current flows from the TAIL fuse to the TAIL relay (Coil side) to TERMINAL 14 of the daytime running light relay, and the HEAD MAIN fuse to the HEAD relay (Coil side) to TERMINAL 6 of the daytime running light relay, activating both the TAIL relay and the HEAD relay, so that the taillights and headlights light up. When the automatic light control sensor detects an increase in the ambient light, the ignition SW is turned to off, the light control SW is turned to HEAD position, and the automatic light control operation stops. 87 COROLLA (EM00H0U) Headlight : Parts Location Code See Page A18 36 C9 34 (2ZZ–GE) A H2 36 C12 C16 H1 32 (1ZZ–FE) B2 36 B H3 36 D2 36 H4 32 (1ZZ–FE) G1 Code 34 (2ZZ–GE) J1 See Page Code 32 (1ZZ–FE) See Page J1 35 (2ZZ–GE) 34 (2ZZ–GE) J6 37 32 (1ZZ–FE) P3 37 34 (2ZZ–GE) 32 (1ZZ–FE) 34 (2ZZ–GE) A S1 32 (1ZZ–FE) B 33 (1ZZ–FE) 35 (2ZZ–GE) 33 (1ZZ–FE) 35 (2ZZ–GE) 34 (2ZZ–GE) 33 (1ZZ–FE) : Relay Blocks Code See Page Relay Blocks (Relay Block Location) 1 22 Engine Room R/B (Engine Compartment Left) 3 28 RH R/B (Right Side of the Instrument Panel Reinforcement) : Junction Block and Wire Harness Connector Code IC IG IH IL 3B 3C 4B 4C See Page 25 Junction Block and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) 25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 24 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) : Connector Joining Wire Harness and Wire Harness Code See Page Joining Wire Harness and Wire Harness (Connector Location) IA2 IA4 44 Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) IE1 45 Instrument Panel Wire and Instrument Panel No.4 Wire (Behind the Combination Meter) II2 45 Engine Wire and Instrument Panel Wire (Blower Unit RH) IA5 IA6 : Ground Points Code EA ED IE See Page 42 (1ZZ–FE) 43 (2ZZ–GE) 42 (1ZZ–FE) 43 (2ZZ–GE) 44 Ground Points Location Front Right Fender Front Left Suspension Tower Behind the Combination Meter 88 COROLLA (EM00H0U) Memo 89 COROLLA (EM00H0U) Fog Light (BAT) (IG) 10A ECU–B (BAT) 10A GAUGE 15A FOG 2 1 IH 2 IG G R–W 1 G R–B 22 3B 1 1 1 5 R–W 12 3B 3 FOG Relay D2 Daytime Running Light Relay 12 +B 2 3 IG 1 1 R R–Y R 9 IA5 R–Y 2 Fog Light SW 4 G–O FOG R–W HI 16 R H 7 6 3C OFF On 5 3C 4 G–O C12 Combination SW 4 3C R R Flash 11 R R High F2 Front Fog Light RH Head Low F1 Front Fog Light LH Tail 9 2 1 2 1 A J6 Junction Connector IE 90 COROLLA (EM00H0U) W–B W–B W–B C12 Combination SW OFF 8 Dimmer SW Light Control SW 12 W–B ED EA : Parts Location Code See Page C12 36 D2 36 F1 32 (1ZZ–FE) Code F1 F2 See Page 34 (2ZZ–GE) Code J6 See Page 37 32 (1ZZ–FE) 34 (2ZZ–GE) : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code IG IH 3B 3C See Page Junction Block and Wire Harness (Connector Location) 25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) : Connector Joining Wire Harness and Wire Harness Code IA5 See Page 44 Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) : Ground Points Code EA ED IE See Page 42 (1ZZ–FE) 43 (2ZZ–GE) 42 (1ZZ–FE) 43 (2ZZ–GE) 44 Ground Points Location Front Right Fender Front Left Suspension Tower Behind the Combination Meter 91 COROLLA (EM00H0U) Turn Signal and Hazard Warning Light (IG) (BAT) 10A GAUGE 10A HAZARD 2 1 R–W G–W 2 IG 22 3B 8 IA5 R–W G–W 15 3B 1 4 IG T2 Turn Signal Flasher Relay +B LL G–Y 12 IH 5 IG G–Y 6 IG 24 25 RH LH 4 C9 Combination Meter 4 R11 Rear Combination Light RH G–Y 2 3 Turn R9 Rear Combination Light LH 2 3 Turn 3 5 IH 12 ID G–B 17 ID G–Y 1 IC F4 Front Turn Signal Light RH 3 F3 Front Turn Signal Light LH G–B 8 IC 11 IH G–B 13 IH G–B 1 IK 2 G–B G–Y 9 IL LR 3 W–B W–B W–B W–B 2 W–B W–B ED EA BI 92 COROLLA (EM00H0U) ∗ 1 : w/ Wireless Door Lock ∗ 2 : w/o Wireless Door Lock T2 Turn Signal Flasher Relay HAZ 8 (∗1) 6 Y–B ER 5 G–O EL 7 G–R GND 5 W–B 6 (∗1) 2 3C RH C12 Combination SW (∗2) 7 LH Y–B Turn SW W–B Y–B 3 3C 3 H7 Hazard SW 15 4B 18 4B 21 4B 2 W–B 17 4B 21 3A W–B 11 3A W–B W–B A J6 Junction Connector IE A J7 Junction Connector IG 93 COROLLA (EM00H0U) Turn Signal and Hazard Warning Light : Parts Location Code See Page Code See Page C9 36 F4 34 (2ZZ–GE) C12 36 H7 37 32 (1ZZ–FE) J6 37 34 (2ZZ–GE) J7 37 32 (1ZZ–FE) R9 39 (*1) F3 F4 Code R9 R11 T2 See Page 41 (*2) 39 (*1) 41 (*2) 37 : Relay Blocks Code 1 See Page 22 Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left) : Junction Block and Wire Harness Connector Code See Page Junction Block and Wire Harness (Connector Location) IC 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) ID 25 Floor Wire and Instrument Panel J/B (Lower Finish Panel) IG IH IK IL 25 Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 24 3A 3B 28 Instrument Panel Wire and RH J/B (Right Side of the Instrument Panel Reinforcement) 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) 3C 4B : Connector Joining Wire Harness and Wire Harness Code IA5 See Page 44 Joining Wire Harness and Wire Harness (Connector Location) Engine Room Main Wire and Instrument Panel Wire (Left Side of the Instrument Panel Reinforcement) : Ground Points Code EA ED See Page 42 (1ZZ–FE) 43 (2ZZ–GE) 42 (1ZZ–FE) 43 (2ZZ–GE) Ground Points Location Front Right Fender Front Left Suspension Tower IE 44 Behind the Combination Meter IG 44 Right Kick Panel BI 46 (*1) 47 (*2) Lower Back Panel * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 94 COROLLA (EM00H0U) Memo 95 COROLLA (EM00H0U) Taillight G–W G–W (USA) (USA) 3 3 TAIL Relay 15A TAIL 2 2 IL 2 IC G 3 G 1 7 IH 2 ID 5 3 3 G 1 IB G TAIL J1 Junction Connector G (Canada) G 14 (Canada) G–B (USA) (Canada) W G–W G (USA) A A A D2 Daytime Running Light Relay 1 1C 1 1A 1 2 2 1 2 13 Head C12 Combination SW 10 (Canada) Tail W–B B Light Control SW OFF G 18 4B W–B 11 4B W–B W–B FL MAIN 2. 0L (USA) (Canada) W–B (USA) 21 4B Battery A J6 Junction Connector IE 96 COROLLA (EM00H0U) W–B ED EA F4 Front Parking Light RH 1 F3 Front Parking Light LH C9 Combination Meter TAIL 100A ALT 18 (USA) G–W 15 G G T 2 1 2 1 L1 License Plate Light LH BI COROLLA (EM00H0U) 2 1 A A A A L2 License Plate Light RH G G G J 8(A), J 9(B) Junction Connector R11 Rear Combination Light RH Tail G G G B B W–B 4 W–B W–B 1 R9 Rear Combination Light LH Tail C A W–B W–B C A B B C A G 4 J 8(A) Junction Connector A A W–B BH 97 Taillight : Parts Location Code See Page Code See Page C9 36 J1 35 (2ZZ–GE) C12 36 J6 37 D2 36 J8 32 (1ZZ–FE) F3 34 (2ZZ–GE) J9 32 (1ZZ–FE) F4 34 (2ZZ–GE) J1 A B 40 (*2) 38 (*1) 40 (*2) L2 R9 R11 38 (*1) L1 33 (1ZZ–FE) 38 (*1) Code 40 (*2) : Relay Blocks Code 3 See Page 28 Relay Blocks (Relay Block Location) RH R/B (Right Side of the Instrument Panel Reinforcement) : Junction Block and Wire Harness Connector Code IB See Page Junction Block and Wire Harness (Connector Location) 25 Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel) ID 25 Floor Wire and Instrument Panel J/B (Lower Finish Panel) IH 25 IL 24 IC Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel) 1A 22 Engine Wire and Engine Room J/B (Engine Compartment Left) 1C 22 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left) 4B 30 Instrument Panel Wire and Center J/B (Behind the Combination Meter) : Ground Points Code EA ED IE BH BI See Page 42 (1ZZ–FE) 43 (2ZZ–GE) 42 (1ZZ–FE) 43 (2ZZ–GE) 44 46 (*1) 47 (*2) 46 (*1) 47 (*2) Ground Points Location Front Right Fender Front Left Suspension Tower Behind the Combination Meter Under the Left Quarter Pillar Lower Back Panel * 1 : w/ Side Airbag and/or Stereo Component Amplifier * 2 : w/o Side Airbag and Stereo Component Amplifier 98 COROLLA (EM00H0U) See Page 38 (*1) 40 (*2) 39 (*1) 41 (*2) 39 (*1) 41 (*2) Memo 99 COROLLA (EM00H0U)

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