Toyota 4Runner III (1995-2003) engine control module (behind right side of dash) Wiring diagrams

2-4 SELECT MOTOR (ON TRANSFER CASE) 2-4 SELECT SWITCH (UNDER FRONT OF CENTER CONSOLE) 25 8 17 3 TF A/T INDICATOR LIGHT SWITCH (PART OF PARK/NEUTRAL POSITION SWITCH) ADD ADD ACTUATOR (ON CENTER MIDDLE OF ENGINE COMPARTMENT) AT P IND BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE C/C CENTER DIFF LOCK CENTER DIFFERENTIAL LOCK SWITCH CENTER J/B (BEHIND LEFT SIDE OF DASH) COMBINATION METER DETECTION SWITCH DETECTION SWITCH (N POSITION) (TRANSFER CASE) DETECTION SWITCH (TRANSFER DRIVER SIDE J/B (LOWER LEFT SIDE OF DASH) ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) FUSE GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HOT IN ON OR START J/C 3 (BEHIND UPPER LEFT SIDE OF DASH) J/C 5 (BEHIND LEFT SIDE OF DASH) J/C 7, J/C 8 (BEHIND RIGHT SIDE OF DASH) J/C 9 (BEHIND RIGHT SIDE OF DASH) LT GRN WIRE PNK WIRE PNK/GRN WIRE RED WIRE RED/BLK WIRE SPD 2-4 PNK WIRE SPEED- OMETER TFN TRANSFER CASE) VSC ECU (BEHIND LEFT SIDE OF DASH) WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 VGS 1 2 3 4 5 6 7 8 9 10 WA NEO ABS BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE/ BRN WIRE BRN/BLK WIRE BRN/YEL WIRE CD TF CSW GYAW CENTER J/B COMPUTER DATA LINES DAYTIME RUNNING LIGHT RELAY (MAIN) (LEFT SIDE OF DASH, RIGHT OF STEERING COLUMN) DRIVER SIDE J/B ECU-IG FUSE EES ENG- TRC- ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) EXI VSCW BRL IND WT GAUGE FUSE GGND GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GSS 12 13 14 GYAW HOT AT ALL TIMES HOT IN RUN OR START J/C 7 (BEHIND UPPER RIGHT SIDE OF DASH) NEO TRC+ ENG- ORG/ WIRE PARK NEUTRAL SWITCH (ON TRANSMISSION) PARKING BRAKE SWITCH (UNDER CENTER CONSOLE) PL RL PNK WIRE PNK/GRN WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE SLIP SPEED- OMETER STEERING SENSOR (BEHIND CENTER OF DASH) STOP FUSE STOPLIGHT SWITCH (UNDER LEFT SIDE OF DASH) TRC+ ENG- ENG+ PNK WIRE TRC- RR- RR+ RL- RL+ BZ TS TC STP 12 13 14 15 16 17 18 19 20 21 22 23 24 VGS GGND VIO WIRE VIO/WHT WIRE VSC VSC BUZZER (BEHIND CENTER OF DASH) VSC DECELRATION SENSOR (UNDER REAR OF CENTER FLOOR CONSOLE) VSC ECU (BEHIND LEFT SIDE OF DASH) VSC OFF VYS VYS YD WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YAW RATE SENSOR (UNDER REAR OF CENTER FLOOR CONSOLE) YEL WIRE YEL/GRN WIRE YSS YD

+BM IGSW BATT STP 1 2 3 4 5 6 11 14 20 21 PWR 1 2 3 4 5 6 7 8 11 15 18 19 25 SL 1 4 6 8 15 16 20 B+ MREL A/T FLUID TEMPERATURE SENSOR (IN TRANS) ACCEL POSITION SENSOR (RIGHT SIDE OF ENGINE) BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE CENTER J/B (RIGHT OF STEERING COLUMN) DETECTION SWITCH (TRANSFER NEUTRAL POSITION) DETECTION SWITCH (TRANSFER DRIVER SIDE J/B (LOWER LEFT SIDE OF DASH) STOP FUSE EB (LEFT FRONT FENDER) EC (LEFT SIDE OF ENGINE) EFI RELAY (IN ENGINE ROOM R/B) ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SWITCH (CENTER CONSOLE) ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID (IN TRANSMISSION) ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE CONTROLS SYSTEM (INSTRUMENT CLUSTER) ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) ETCS FUSE GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GUAGE FUSE HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) EFI FUSE HOT IN HOT IN ON OR START IGN FUSE J/C 3 (BEHIND UPPER LEFT SIDE OF DASH) J/C 7, J/C 8 (BEHIND RIGHT SIDE OF DASH) J/C 9 (RIGHT SIDE OF DASH) LL 1 2 5 7 PL RL NL DL 4 8 3 LL LT GRN WIRE O/D MAIN SWITCH (BELOW CENTER CONSOLE) PL RL NL 10 1 DL PNK/BLU WIRE RED WIRE RED/YEL WIRE SLT+ VPA SLT- STA FUSE STARTING/ CHARGING STOP- LIGHT SWITCH (ABOVE BRAKE PEDAL) TFN ODMS ODLP OILW THROTTLE POSITION SENSOR (ON THROTTLE BODY ASSY) VEHICLE SPEED SENSOR (ELECTRO- NICALLY CONTROLLED TRANS) (ON TRANS) VIO WIRE VTA THW THOC VC WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 HORN P/W POWER DEF BACK DOOR ECU (ON LEFT SIDE OF BACK DOOR) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL (OR PNK/GRN) WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (ON DRIVER SIDE J/B) BRN/WHT WIRE CENTER J/B (RIGHT OF STEERING COLUMN) COMBINATION METER DEFOGGER SYSTEM POWER WINDOWS SYSTEM POWER WINDOWS SYSTEM DOOR LOCKS SYSTEM DRIVER SIDE J/B (ON LOWER LEFT SIDE OF DASH) ECU-IG FUSE WIPER FUSE ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM R/B (ON LEFT SIDE OF ENGINE COMPARTMENT, ON INNER FENDER PANEL) FUSE GRN (OR RED) WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE GRY/RED WIRE HAZ GND WIP ECU-IG HOOD SW LSWR ANTI-THEFT SYSTEM ANTI-THEFT SYSTEM HORN-HAZ FUSE HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START J/C 6 (BEHIND RIGHT SIDE OF DASH, AT CENTER JUNCTION BLOCK) J/C 9 (RIGHT SIDE OF DASH) LSWP RCTY PCTY LSWD DEF SW DCTY R/W ON R/W INT B/D CTY ACTD LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MPX-B FUSE POWER DISTRIBUTION SYSTEM POWER FUSE PWR RELAY RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE UNLOCK WARNING SWITCH VIO/WHT WIRE W/ANTI-THEFT SYSTEM WHT WIRE WHT/BLK WIRE WMTR ACT+ ACT- YEL/RED WIRE

+BM IGSW BATT PI STP 1 4 6 8 15 16 17 20 +B MREL 2 4 8 10 15 CL+ 7 17 TC ACCEL POSITION SENSOR (ON RIGHT SIDE OF ENGINE) (LEFT SIDE OF ENGINE) BLK/BLU WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BRN WIRE C/C CENTER J/B (BEHIND LEFT SIDE OF DASH, RIGHT OF STEERING COLUMN) CL- CL- VPA COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE CRUISE CONTROL SWITCH (COMBINATION SWITCH) D POSITION SWITCH (PARK/NEUTRAL POSITION SWITCH) (ON TRANS) DRIVER SIDE J/B (LOWER LEFT SIDE OF DASH) EFI FUSE EFI RELAY ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT, ON INNER FENDER PANEL) ETCS FUSE GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN ON OR START IGN FUSE J/C 4 (LEFT SIDE OF DASH) J/C 7 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 7, J/C 8 (BEHIND UPPER RIGHT SIDE OF DASH) RED WIRE RED/BLK WIRE RES+ STOP FUSE STOPLIGHT SWITCH (UNDER LEFT SIDE OF DASH) THROTTLE CONTROL MOTOR, CLUTCH (ON TOP RIGHT SIDE OF ENGINE) CANCEL SET/ COAST THROTTLE POSITION SWITCH (ON THROTTLE BODY ASSEMBLY) VSC ECU (BEHIND LEFT SIDE OF DASH) VTA SHIELD VC M- WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE

1 2 3 4 SEC IND SH HRY TRY 2 3 ECU-B IG 7 10 1 8 HAZ ECU-IG HORN GND 7 8 HOOD SW LSWR 9 10 CLS OPN BACK DOOR COURTESY SWITCH BACK DOOR ECU (ON LEFT SIDE OF BACK DOOR) BACK DOOR UNLOCK DETECTION SWITCH BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (ON DRIVER SIDE J/B) BRN/WHT WIRE CENTER J/B (BEHIND LEFT SIDE OF DASH, TO RIGHT OF STEERING COLUMN) DCTY DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM DOWN DRIVER SIDE J/B (ON LOWER LEFT SIDE OF DASH) ECU B+ ECU-IG FUSE ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE HOOD COURTESY SWITCH ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT, ON INNER FENDER PANEL) FUSE GRN/ORG WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HORN-HAZ FUSE HORNS SYSTEM HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START IMLD J/C 1, J/C 2 (LEFT INNER FENDER PANEL, FRONT OF STRUT TOWER) J/C 9 (RIGHT SIDE OF DASH) LEFT FRONT DOOR COURTESY SWITCH LEFT REAR DOOR COURTESY SWITCH LEFT REAR DOOR UNLOCK DETECTION SWITCH LSWB LSWP RCTY PCTY LSWD LT GRN WIRE MPX-B FUSE RED (OR GRN) WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RIGHT FRONT DOOR COURTESY SWITCH RIGHT REAR DOOR COURTESY SWITCH RIGHT REAR DOOR UNLOCK DETECTION SWITCH SECURITY INDICATOR LIGHT (CENTER CLUSTER SWITCH) TAILGATE CONTROL SWITCH THEFT DETERRENT HORN (AT RIGHT SIDE OF ENGINE COMPT) VIO/WHT WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/RED WIRE

+B CODE RXCK TXCT GND 2 3 4 5 10 5 18 19 11 12 EOM CODE RXCK TXCT KSW IMLD 15 16 4 1 IGSW BATT MREL +B BLK WIRE BLK/BLU WIRE BLU WIRE BLU/RED WIRE BRN WIRE CENTER J/B (BEHIND LEFT SIDE OF DASH, TO RIGHT OF STEERING COLUMN) DRIVER SIDE J/B (ON LOWER LEFT SIDE OF DASH) IGN FUSE EFI FUSE EFI RELAY ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT, ON INNER FENDER PANEL) GRY/BLK WIRE GRY/RED WIRE HOT AT ALL TIMES HOT AT ON OR START J/C 1, J/C 2 (LEFT INNER FENDER PANEL) J/C 4 (LEFT SIDE OF DASH) J/C 6 (BEHIND LEFT SIDE OF DASH) J/C 7, J/C 8 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 9 (RIGHT SIDE OF DASH) PNK/BLK WIRE RED/BLK WIRE SECURITY INDICATOR LIGHT (CENTER CLUSTER SWITCH) TRANSPONDER KEY AMPLIFIER (LEFT SIDE OF DASH, AT STEERING COLUMN) UNLOCK WARNING SWITCH WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE WHT/BLU WIRE YEL/RED WIRE

BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CAMSHAFT POSITION SENSOR (TOP FRONT OF ENGINE) CL- CRANKSHAFT POSITION SENSOR (FRONT OF ENGINE) DATA LINK CONNECTOR 3 (BELOW LEFT SIDE OF DASH) ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) EXT GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) OBD FUSE HTAF IGF IGNITION COILS INJECTOR 1 INJECTOR 2 INJECTOR 3 INJECTOR 4 INJECTOR 5 INJECTOR 6 INSTRUMENT CLUSTER SYSTEM J/C 6 KNOCK SENSOR 1 (MIDDLE OF ENGINE) KNOCK SENSOR 2 (MIDDLE OF ENGINE) LT GRN WIRE NCA WIRE NE+ NOISE FILTER PNK PSW CCV TBP NE- WIRE PNK WIRE PNK/BLU WIRE POWER STEERING OIL PRESSURE SWITCH (RIGHT FRONT OF ENGINE) PTNK VC RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE SDL - SHIELD SIL SLT- THROTTLE CONTROL MOTOR AND CLUTCH (TOP RIGHT SIDE OF ENGINE) THW THOC VG THA VIO WIRE VPA SLT- WFSE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 B+ A/C SYSTEM A/T OIL TEMP IND ACT MREL MREL ANTI-LOCK BRAKE SYSTEM ANTI-THEFT SYSTEM AT P IND BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/YEL WIRE CENTER J/B (BEHIND LEFT SIDE OF DASH) DETECTION SWITCH (TRANSFER DETECTION SWITCH (TRANSFER NEUTRAL POSITION) (ON TRANSMISSION) DRIVER SIDE J/B (LOWER LEFT SIDE OF DASH) ECT PWR IND ELECTRONICALLY CONTROLLED TRANSMISION PATTERN SELECT SWITCH ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) EOM KSW IMLD WFSE SIL IGSW BATT GAUGE FUSE GRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/RED WIRE HOT IN RUN OR START INSTRUMENT CLUSTER J/C 7, J/C 8 (UPPER RIGHT SIDE OF DASH) LT GRN WIRE MAL- FUNCTION IND NEO O/D MAIN SWITCH (SHIFT LOCK CONTROL COMPUTER) O/D OFF IND ODMS PARK/NEUTRAL POSITION SWITCH PL RL NL RB DL PNK ENG- ENG+ ODLP OIL-W WIRE PNK/BLK WIRE POSITION) (ON TRANSMISSION) PWR RED/BLK WIRE RED/WHT WIRE RXCK TXCT STP SPEEDOMETER STA +BM STARTING SYSTEM TFN TRANSPONDER KEY AMPLIFIER (LEFT SIDE OF DASH) TRC- TRC+ VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE