Toyota Highlander I (2001-2003) body ecu (behind right side of dash) Wiring diagrams

A/C CONTROL ASSEMBLY POWER WINDOW MASTER SWITCH W/ ECU A/T INDICATOR SWITCH (ON LEFT SIDE OF TRANSMISSION) BLK/ORG WIRE BLK/RED WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) CENTER J/B (BEHIND UPPER CENTER OF DASH) COMBINATION METER ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SENSOR GRN WIRE GRN/RED WIRE GRN/WHT WIRE HOT IN ON OR START IB (RIGHT DASH BRACE) IGN 1 FUSE INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 6 (BEHIND LEFT SIDE OF DASH) MPX O/D MAIN SWITCH OD OFF PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) RED/BLK WIRE RED/WHT WIRE SKID CONTROL ECU (ABOVE INSTRUMENT PANEL J/B) SNOW W/ VSC W/ VSC W/O VSC W/O VSC WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

A/C CONTROL ASSEMBLY POWER WINDOW MASTER SWITCH W/ ECU A/T INDICATOR SWITCH (ON LEFT SIDE OF TRANSMISSION) BLK/ORG WIRE BLK/RED WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) CENTER J/B (BEHIND UPPER CENTER OF DASH) COMBINATION METER ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SENSOR GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE HOT IN ON OR START IB (RIGHT DASH BRACE) IGN 1 FUSE INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 8 (BEHIND RIGHT SIDE OF DASH) MPX O/D MAIN SWITCH OD OFF PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) RED/BLK WIRE RED/WHT WIRE SKID CONTROL ECU (ABOVE INSTRUMENT PANEL J/B) SNOW W/ VSC W/ VSC W/O VSC W/O VSC WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

12 9 7 11 16 15 PCYL BECU 19 6 11 DCYL BCTY DCTY BLK WIRE BLU WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) CENTER J/B (BEHIND UPPER CENTER OF DASH) DIODE (REAR INTERIOR LIGHT) (NEAR REAR HATCH, IN ROOF) DOME FUSE DOOR DOOR D FR FUSE DOOR P FR FUSE ECU-B FUSE ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IC (UPPER RIGHT KICK PANEL) ILE PCTY RCTY INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) INTERIOR LIGHT) J/C 12 (LEFT REAR OF VEHICLE) J/C 14 (LEFT SIDE OF BACK DOOR) LEFT FRONT DOOR COURTESY LIGHT LEFT FRONT DOOR COURTESY SWITCH LEFT VANITY LIGHT OFF PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PERSONAL LIGHT RADIO 2 FUSE REAR INTERIOR LIGHT REAR INTERIOR LIGHT SWITCH RED WIRE RED/BLU WIRE RIGHT FRONT DOOR COURTESY LIGHT RIGHT FRONT DOOR COURTESY SWITCH RIGHT REAR DOOR COURTESY SWITCH LEFT REAR DOOR COURTESY SWITCH RIGHT VANITY LIGHT TRAN- SPONDER KEY AMPLIFIER IGNITION KEY CYLINDER ILLUM VIO WIRE W/O ENGINE IMMOBILIZER W/ ENGINE IMMOBILIZER WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE

BLK/ORG WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPARTMENT) GRN/WHT WIRE HORN HORN FUSE HORN RELAY HORN SWITCH HOT AT ALL TIMES LEFT HORN (LEFT FRONT OF ENGINE COMPT) RED WIRE RIGHT HORN THEFT DETERRENT ECU (BEHIND RIGHT SIDE OF DASH) THEFT DETERRENT HORN (RIGHT SIDE OF ENGINE COMPT) WHT WIRE WHT/RED WIRE

A/C CONTROL ASSEMBLY ALT FUSE BLK WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) CENTER J/B (BEHIND UPPER CENTER OF DASH) CIGARETTE LIGHTER ILLUM ASHTRAY ILLUM COMBINATION METER ELECTRONIC CONTROLLED TRANSMISSION PATTERN SELECT SWITCH FRONT WIPER DEICER, MIRROR HEATER SWITCH FUSIBLE LINK BOX (LEFT SIDE OF ENGINE COMPT) GLOVE BOX LIGHT GRN WIRE HEAD OFF TAIL HOT AT ALL TIMES IA (LEFT KICK PANEL) IB (RIGHT INSTRUMENT PANEL BRACE) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) LEFT SEAT HEATER SWITCH LIGHT CONTROL SWITCH (PART OF COMBINATION SWITCH) O/D MAIN SWITCH PANEL FUSE RADIO, PLAYER RED WIRE RHEOSTAT RIGHT SEAT HEATER SWITCH TAILLIGHT RELAY TRACTION OFF SWITCH WHT WIRE

12 13 14 PNK WIRE 16 17 11 15 6 RDA PRG DCTY BZR BCTY 5 4 3 2 1 +B BACK DOOR LOCK UNIT BECU ACTD PCTY RCTY BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) CENTER J/B (BEHIND UPPER CENTER OF DASH) COMPUTER DATA LINES SYSTEM DOME FUSE DOOR LOCK FUSE ECU-B FUSE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES IA (LEFT KICK PANEL) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 10 (ON LEFT REAR OF VEHICLE) J/C 11 (ON RIGHT REAR OF VEHICLE) J/C 12 (ON LEFT REAR OF VEHICLE) J/C 14 (LEFT SIDE OF BACK DOOR) J/C 5 (LEFT SIDE OF DASH, BEHIND INSTRUMENT CLUSTER) KSW PML PMUL LSWP PKUL PKL PNK WIRE LSSR LSWA ACT+ ACT- LT GRN WIRE PASSENGER SIDE J/B PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK/BLU WIRE PRG RDA REAR INTERIOR LIGHT SWITCH RED WIRE RED/BLK WIRE RED/BLU WIRE RIGHT FRONT DOOR LOCK UNIT VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE WIRELESS DOOR LOCK ECU (ON RIGHT SIDE OF LUGGAGE COMPT) YEL WIRE

11 6 DCTY BCTY 13 14 15 PNK WIRE BACK DOOR LOCK UNIT BECU ACTD PCTY RCTY BLK/WHT WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) CENTER J/B (BEHIND UPPER CENTER OF DASH) COMPUTER DATA LINES SYSTEM DOOR LOCK FUSE ECU-B FUSE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES IA (LEFT KICK PANEL) PASSENGER SIDE J/B INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 10 (ON LEFT REAR OF VEHICLE) J/C 12 (ON LEFT REAR OF VEHICLE) J/C 14 (LEFT SIDE OF BACK DOOR) J/C 5 (LEFT SIDE OF DASH, BEHIND INSTRUMENT CLUSTER) KSW PML PMUL LSWP PKUL PKL PNK WIRE LSSR LSWA ACT+ ACT- LT GRN WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK/BLU WIRE REAR INTERIOR LIGHT SWITCH RED WIRE RED/BLK WIRE RED/BLU WIRE RIGHT FRONT DOOR LOCK UNIT THEFT DETERRENT ECU (BEHIND RIGHT SIDE OF DASH) VIO WIRE W/ ANTI- THEFT W/O ANTI- THEFT WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 UP GND LSWE PNK LMT PWS WIRE 20 21 6 PD PU 7 5 4 1 8 +B SD SU 7 5 4 8 1 +B SD SU PCT 8 9 13 14 RRD RRU RLD RLU 9 7 BECU BA (LEFT CENTER PILLAR) BB (RIGHT CENTER PILLAR) BLK WIRE BLK/ORG WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) CENTER J/B (BEHIND UPPER CENTER OF DASH) COMPUTER DATA LINES SYSTEM CPUB BDR DN D FR DOOR FUSE D RR DOOR FUSE ECU-B FUSE ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IC (UPPER RIGHT KICK PANEL) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) LEFT FRONT DOOR KEY LOCK/ UNLOCK SWITCH LEFT FRONT POWER WINDOW MOTOR LEFT REAR POWER WINDOW MOTOR LEFT REAR POWER WINDOW SWITCH LIMIT SWITCH PULSE SENSOR LT GRN WIRE LT GRN/BLK WIRE P FR DOOR FUSE P RR DOOR FUSE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PCT PNK WIRE PNK/BLU WIRE POWER WINDOW MASTER SWITCH WITH ECU RADIO 2 FUSE RED WIRE RED/BLU WIRE RED/WHT WIRE RIGHT FRONT POWER WINDOW MOTOR RIGHT FRONT POWER WINDOW SWITCH RIGHT REAR POWER WINDOW MOTOR RIGHT REAR POWER WINDOW SWITCH SGND KUL PLS SIG WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE

+SR P+ P- SIL D- D+ +SL 1 2 3 4 5 6 7 8 9 10 11 12 PL- PL+ 1 2 3 4 5 6 7 8 9 10 11 12 SFR- SFR+ 4-CYL 6-CYL 5 4 DBKL PBKL AIR BAG AIR BAG SENSOR ASSEMBLY (BELOW SHIFTER CONSOLE) BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) COMBINATION METER ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ESL SSL+ LBE+ SSL- FPS GRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE HEATER FUSE HOT IN ON OR START IGN FUSE INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 11 (ON RIGHT REAR OF VEHICLE) J/C 6 (LEFT SIDE OF DASH, BEHIND COMBINATION METER) J/C 9 (BEHIND LEFT KICK PANEL) JC-15 (UNDER DRIVER'S SEAT) LEFT BUCKLE SWITCH LEFT FRONT AIR BAG SENSOR (ON LEFT FRONT OF VEHICLE) LEFT PRETENSIONER (AT BASE OF LEFT "B" PILLAR) LEFT SIDE AIR BAG SENSOR (W/SIDE AIR BAG) (AT BASE OF LEFT "B" PILLAR) LEFT SIDE AIR BAG SQUIB (W/SIDE AIR BAG) LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK 1 2 WIRE PNK VUPR WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PR+ PR- SSR- RBE+ SSR+ ESR RED WIRE RED/GRN WIRE RIGHT BUCKLE SWITCH RIGHT FRONT AIR BAG SENSOR (ON RIGHT FRONT OF VEHICLE) RIGHT PRETENSIONER (AT BASE OF RIGHT "C" PILLAR) RIGHT SIDE AIR BAG SENSOR (W/SIDE AIR BAG) (AT BASE OF RIGHT "B" PILLAR) RIGHT SIDE AIR BAG SQUIB (W/SIDE AIR BAG) SEAT BELT WARNING OCCUPATION DETECTION SENSOR (UNDER PASSENGER'S SEAT) SFL+ SFL- VUPL SL- SOLID STATE SRS-IG FUSE TC -SR WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

18 19 (3.0L) (2.4L) A/C CONTROL ASSEMBLY BA (LEFT CENTER PILLAR) BLK WIRE BLK/RED WIRE BLU WIRE BLU/WHT WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) BRN WIRE BUZZER CENTER J/B (BEHIND UPPER CENTER OF DASH) COMBINATION METER DBKL DCTY DOME FUSE ECU-B FUSE ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B (LEFT SIDE OF ENG COMPT) FUSE GRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ACCY OR ON HOT IN ON OR START IB (RIGHT INSTRUMENT PANEL BRACE) IC (UPPER RIGHT KICK PANEL) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 11 (ON RIGHT REAR OF VEHICLE) J/C 6 (BEHIND INSTRUMENT CLUSTER) J/C 9 (BEHIND LEFT KICK PANEL) JC-15 (UNDER DRIVER'S SEAT) LEFT BUCKLE SWITCH LEFT FRONT DOOR COURTESY SWITCH MPX PASSENGER SEAT BELT WARNING IND PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PKBL POWER WINDOW MASTER SWITCH W/ ECU RADIO 2 FUSE RED WIRE RED/BLU WIRE RIGHT BUCKLE SWITCH SEAT BELT IND SEAT BELT WARNING OCCUPANT DETECTION SENSOR (UNDER PASSENGER'S SEAT) UNLOCK WARNING SWITCH VIO WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE