Toyota Highlander I facelift (2003-2007) body ecu (behind right side of dash) Wiring diagrams

A/C MAGNETIC CLUTCH, LOCK SENSOR (ON A/C COMP- RESISTOR) A/C TRIPLE PRESSURE SWITCH (ON RIGHT FRONT OF ENGINE COMPARTMENT) ACMG BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) BRN WIRE CDS FUSE CENTER J/B (BEHIND UPPER CENTER OF DASH) COMBINATION METER CONDENSER FAN MOTOR (BEHIND RADIATOR) DUAL EE (AT INTAKE SIDE OF CYLINDER BLOCK) ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) ENGINE ROOM R/B (ON LEFT SIDE OF ENGINE COMPARTMENT) FAN FAN 1 RELAY FAN 2 RELAY FAN 3 RELAY FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPARTMENT) GRN WIRE GRN/BLK WIRE GRY WIRE HOT AT ALL TIMES J/C 2 (BEHIND LEFT HEADLIGHT) JUNCTION CONNECTOR 2 (BEHIND LEFT HEADLIGHT) JUNCTION CONNECTOR 7 (BEHIND RIGHT SIDE OF DASH) LT BLU WIRE MG CLT RELAY MPX ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) POWER WINDOW MASTER SWITCH WITH ECU (IN DRIVER'S DOOR) PRE RADIATOR FAN MOTOR (BEHIND RADIATOR) RDI FUSE RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE SINGLE VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

A/C MAGNETIC CLUTCH, LOCK SENSOR (ON A/C COMP- RESSOR) A/C TRIPLE PRESSURE SWITCH (ON RIGHT FRONT OF ENGINE COMPT) ACMG BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) BRN WIRE COMBINATION METER COMPT) CONDENSER FAN MOTOR (BEHIND RADIATOR) DIODE (COOLING FAN) (BEHIND LEFT SIDE OF DASH) DUAL ED (ON TOP OF ENGINE) EG (UNDER LEFT HEADLIGHT) ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENSOR (ON FRONT CENTER OF ENGINE) ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) ENGINE ROOM R/B (ON LEFT SIDE OF ENGINE COMPARTMENT) FAN 1 RELAY FAN 2 RELAY FAN 3 RELAY FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPARTMENT) GRN WIRE GRN/BLK WIRE GRY WIRE HOT AT ALL TIMES JUNCTION CONNECTOR 2 (BEHIND LEFT HEADLIGHT) JUNCTION CONNECTOR 4 (ON RIGHT JUNCTION CONNECTOR 7 (BEHIND RIGHT SIDE OF DASH) LT BLU WIRE MG CLT RELAY MPX ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) POWER WINDOW MASTER SWITCH WITH ECU (IN DRIVER'S DOOR) PRE RADIATOR FAN MOTOR (BEHIND RADIATOR) RDI FUSE CDS FUSE RED WIRE RED/BLU WIRE RED/YEL WIRE SHORT CONNECTOR (BEHIND RIGHT SIDE OF DASH) SIDE OF ENGINE COMPT) EB SINGLE TAM VIO WIRE WATER TEMPERATURE SWITCH 1 (AT RIGHT FRONT OF ENGINE COMPARTMENT, BEHIND GRILLE) WATER TEMPERATURE SWITCH 2 (ON REAR CENTER OF ENGINE) WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/GRN WIRE

A/C MAGNETIC CLUTCH, LOCK SENSOR (ON A/C COMP- RESSOR) A/C TRIPLE PRESSURE SWITCH (ON RIGHT FRONT OF ENGINE COMPARTMENT) ACMG BLK WIRE BLK/ WHT WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) BRN WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) COMBINATION METER CONDENSER FAN MOTOR (BEHIND RADIATOR) DIODE (COOLING FAN) (BEHIND LEFT SIDE OF DASH) DUAL ED (ON TOP OF ENGINE) EG (UNDER LEFT HEADLIGHT) EB (AT RIGHT FRONT FENDER APRON) ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENSOR (3.0L: ON FRONT CENTER OF ENGINE) ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) ENGINE ROOM R/B (ON LEFT SIDE OF ENGINE COMPARTMENT) FAN 1 RELAY FAN 2 RELAY FAN 3 RELAY FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPARTMENT) GRN WIRE GRN/BLK WIRE GRY WIRE HOT AT ALL TIMES J/C 2 (BEHIND LEFT HEADLIGHT) JUNCTION CONNECTOR 2 (BEHIND LEFT HEADLIGHT) JUNCTION CONNECTOR 4 (ON RIGHT SIDE OF ENGINE COMPT) JUNCTION CONNECTOR 7 (BEHIND RIGHT SIDE OF DASH) LT BLU WIRE MG CLT RELAY MPX ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) POWER WINDOW MASTER SWITCH WITH ECU (IN DRIVER'S DOOR) PRE RADIATOR FAN MOTOR (BEHIND RADIATOR) RDI FUSE CDS FUSE RED WIRE RED/BLU WIRE RED/YEL WIRE SHORT CONNECTOR (BEHIND RIGHT SIDE OF DASH) SINGLE VIO WIRE WATER TEMPERATURE SWITCH 1 (AT RIGHT FRONT OF ENGINE COMPT, BEHIND GRILLE) WATER TEMPERATURE SWITCH 2 (ON REAR CENTER OF ENGINE) WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

ACT+ ACTD 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 BECU HORN ILE PCYL PNK WIRE BLK WIRE BLU WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) BRN WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) CLTB D FR DOOR FUSE DCYL DOOR LOCK FUSE DOOR LOCKS SYSTEM DRL HRLY HEADLIGHTS SYSTEM ECU-B FUSE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM FUSE GRN WIRE GRY WIRE HAZ CLTE CLTS HEAD TAIL INTERIOR, EXTERIOR LIGHTS SYSTEMS HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS, HEADLIGHTS, INTERIOR LIGHTS SYSTEMS HEADLIGHTS SYSTEM PNK WIRE HORNS SYSTEM INTERIOR LIGHTS SYSTEM HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START IB (AT RIGHT DASH BRACE) IC (AT RIGHT KICK PANEL) IG FFGO TRLY INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) INTERIOR LIGHTS, DOOR LOCKS SYSTEMS BCTY INTERIOR LIGHTS, DOOR LOCKS SYSTEMS DCTY INTERIOR LIGHTS,, DOOR LOCKS SYSTEMS J/C 6 (LEFT SIDE OF DASH, BEHIND INSTRUMENT CLUSTER) LEFT FRONT DOOR COURTESY LIGHT LT BLU WIRE LT GRN WIRE NAVIGATION SYSTEM HEADLIGHTS SYSTEM ORG/ WIRE P FR DOOR FUSE PARKING BRAKE SWITCH (AT BASE OF PARKING BRAKE PEDAL) PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PD PU POWER WINDOWS SYSTEM PKB RCTY PCTY LSWA PML PKL PBEW FFOG LSWP PMUL PKUL HU HF RADIO 2 FUSE RED WIRE RIGHT FRONT DOOR COURTESY LIGHT RLD RLU BZR RDA PRG POWER WINDOWS SYSTEM RRD RRU POWER WINDOWS SYSTEM SNOW TRANSMISSIONS SYSTEM UNLOCK WARNING SWITCH (IN STEERING COLUMN) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 5 3 2 GND IG CANH CANL 13 11 25 42 24 D/G CANH CANL WFSE TS 19 20 15 WFSE TC EOM 3 10 9 1 2 PNK BAT CANH CANL WIRE A/C CONTROL ASSEMBLY (BEHIND CENTER AIR BAG SENSOR ASSEMBLY BB (AT RIGHT CENTER PILLAR) BLK WIRE BLU WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) BRN WIRE CG SC CANH SIL COMBINATION METER DATA LINK CONNECTOR (DLC) 3 (UNDER LEFT SIDE OF DASH) DIA ECU-B FUSE ECU-IG FUSE EE (AT INTAKE SIDE OF CYLINDER BLOCK) (2.4L) ED (ON TOP OF ENGINE) (3.0L) ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ON OR START IC (AT RIGHT KICK PANEL) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 16 (RIGHT KICK PNK PANEL) 21 20 WIRE J/C 17 (BEHIND LEFT SIDE OF DASH) J/C 7 (BEHIND RIGHT SIDE OF DASH) LT BLU WIRE MPX MULTI-DISPLAY OBD FUSE OCCUPANT CLASSIFICATION ECU (BELOW RIGHT FRONT SEAT) OF DASH) OPTION CONNECTOR 1 (BEHIND LEFT KICK PANEL) ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK 10 8 WIRE PNK WIRE PNK/BLK WIRE POWER WINDOW MASTER SWITCH WITH ECU (IN DRIVER'S DOOR) RED WIRE SHORT CONNECTOR SIL SKID CONTROL ECU WITH ACTUATOR (RIGHT FRONT OF ENGINE COMPT) STEERING SENSOR (IN STEERING COLUMN) TAC TACH TRANSPONDER KEY COMPUTER (BEHIND RIGHT SIDE OF DASH) TS TC CANL WFSE BAT VIO WIRE W/ NAVIGATION SYSTEM W/ THEFT- DETERRENT SYSTEM W/O NAVIGATION SYSTEM WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YAW RATE SENSOR (ON REAR OF VEHICLE) YEL 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) BRN WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM CTY DIODE (REAR INTERIOR LIGHT) (IN ROOF, NEAR REAR HATCH) DOME FUSE DOOR DOOR D FR FUSE DOOR IND DOOR P FR FUSE ECU-B FUSE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRY WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IC (AT RIGHT KICK PANEL) ILE PCTY RCTY INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) INTERIOR LIGHT) J/C 13 (ON LEFT REAR OF VEHICLE) J/C 14 (ON LEFT REAR OF VEHICLE) LEFT FRONT DOOR COURTESY LIGHT LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LEFT REAR DOOR COURTESY SWITCH (ON LEFT ``C" PILLAR) LEFT VANITY LIGHT LT BLU WIRE LT GRN WIRE OFF ORG/ WIRE OVER- HEAD J/B PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK WIRE RADIO 2 FUSE REAR INTERIOR LIGHT REAR INTERIOR LIGHT SWITCH RED WIRE RIGHT FRONT DOOR COURTESY LIGHT RIGHT FRONT DOOR COURTESY SWITCH (RIGHT "B" PILLAR) RIGHT REAR DOOR COURTESY SWITCH (RIGHT "C" PILLAR) RIGHT VANITY LIGHT VIO WIRE W/O ENGINE IMMOBILIZER W/ ENGINE IMMOBILIZER WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

1 2 3 4 5 6 7 8 IG LR LL BC (AT LEFT SIDE OF REAR CROSSMEMBER) BE (AT LEFT SIDE OF BACK DOOR) BLK WIRE BLU WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) BRN WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) COMBI- NATION SWITCH COMBINATION METER EL ER ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) FUSE FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPT) ALT FUSE GRN WIRE GRY WIRE HAZARD FUSE HAZARD SWITCH (A/C CONTROL ASSEMBLY) HEAD OFF TAIL HIGH MOUNTED STOP LIGHT HOT AT ALL TIMES HOT IN ON OR START IA (AT LEFT KICK PANEL) IB (AT RIGHT DASH BRACE) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) INSTRUMENT STOP FUSE PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 20 (NEAR LEFT KICK PANEL) JUNCTION CONNECTOR JUNCTION CONNECTOR 1 (BEHIND LEFT HEADLIGHT) EG JUNCTION CONNECTOR 12 (ON LEFT REAR OF VEHICLE) JUNCTION CONNECTOR 14 (ON LEFT REAR OF VEHICLE) JUNCTION CONNECTOR 14 (ON LEFT REAR OF VEHICLE) BE JUNCTION CONNECTOR 3 (ON RIGHT SIDE OF ENGINE COMPT) EA LEFT FRONT PARK/ TURN LIGHT LEFT REAR COMBIN- ATION LIGHT LEFT REAR SIDE MARKER LIGHT LICENSE PLATE LIGHT LIGHT CONTROL SWITCH (PART OF COMBINATION SWITCH) LT BLU WIRE LT GRN WIRE ORG/ WIRE PARK PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK WIRE RED WIRE RIGHT FRONT PARK/ TURN LIGHT RIGHT LEFT RIGHT REAR COMBIN- ATION LIGHT RIGHT REAR SIDE MARKER LIGHT STOPLIGHT SWITCH (ABOVE BRAKE PEDAL) TAIL TAIL FUSE TAIL STOP TAIL STOP TURN TAILLIGHT RELAY TURN TURN SIGNAL FLASHER (RIGHT OF INSTRUMENT PANEL J/B) TURN SIGNAL IND LIGHTS TURN SIGNAL SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

10 17 16 18 15 14 FFOG HEAD 12 20 21 CLTB CLTE CLTS 2 3 PNK DRL HRLY WIRE 9 14 7 BECU PKB ALT FUSE AUTO OFF AUTOMATIC LIGHT CONTROL SENSOR (ON UPPER LEFT SIDE OF DASH) BLK WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) BRN WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) COMBINATION METER COMBINATION SWITCH DCTY DRL 2 RELAY DRL 3 RELAY DRL 4 RELAY DRL FUSE EB (AT RIGHT FRONT FENDER APRON) ECU-B FUSE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B (ON LEFT SIDE OF ENGINE COMPT) LEFT LOWER HEAD LP FUSE FLASH AUTO OFF FOG LIGHT RELAY FOGLIGHT SWITCH FR FOG FUSE FUSE FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPT) GRN WIRE GRY WIRE HEADLAMP RELAY HIGH BEAM INDICATOR HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IA (AT LEFT KICK PANEL) IC (AT RIGHT KICK PANEL) IG TRLY FFGO INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) RADIO 2 FUSE J/C 1 (BEHIND LEFT HEAD- LIGHT) J/C 3 (ON RIGHT SIDE OF ENGINE COMPT) LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LEFT FRONT FOG LIGHT LEFT HIGH BEAM HEADLIGHT LEFT LOW BEAM HEAD- LIGHT RIGHT FRONT FOG LIGHT LEFT UPPER HEAD LP FUSE LIGHT CONTROL SWITCH LOW LOW FLASH LT BLU WIRE LT GRN WIRE MAIN FUSE OF ENGINE COMPT) OFF ON ORG/ WIRE PARKING BRAKE SWITCH (AT BASE OF PARKING BRAKE PEDAL) DIMMER SWITCH PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT HIGH BEAM HEADLIGHT RIGHT LOW BEAM HEAD- LIGHT RIGHT LOWER HEAD LP FUSE RIGHT UPPER HEAD LP FUSE TAIL FUSE TAIL HF HU TAIL LIGHT RELAY VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

14 17 18 15 10 HU HEAD TAIL HF FFOG 9 7 BECU ALT FUSE BLK WIRE BLU WIRE BLU/RED WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) BRN WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) COMBINATION METER COMBINATION SWITCH DCTY DIMMER SWITCH ECU-B FUSE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B (ON LEFT SIDE OF ENGINE COMPT) FOG LIGHT RELAY FOGLIGHT SWITCH FR FOG FUSE FUSE FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPT) GRN WIRE GRY WIRE HEAD LP LEFT LOWER FUSE HEAD LP LEFT UPPER FUSE HEAD LP RIGHT UPPER FUSE HEAD LP RIGHT LOWER FUSE HEAD OFF HEADLAMP RELAY HIGH BEAM INDICATOR HIGH HIGH HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IA (AT LEFT KICK PANEL) IC (AT RIGHT KICK PANEL) IG TRLY FFGO INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) RADIO 2 FUSE J/C 1 (BEHIND LEFT HEAD- LIGHT) JUNCTION CONNECTOR 3 (ON RIGHT SIDE OF ENGINE COMPT) LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LEFT FRONT FOG LIGHT LEFT HIGH BEAM HEAD- LIGHT RIGHT HIGH BEAM HEAD- LIGHT LEFT LOW BEAM HEAD- LIGHT LIGHT CONTROL SWITCH LOW LOW FLASH FLASH LT BLU WIRE LT GRN WIRE MAIN FUSE OFF ON ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) RED WIRE RED/YEL WIRE RIGHT FRONT FOG LIGHT RIGHT LOW BEAM HEAD- LIGHT TAIL TAIL FUSE TAIL LIGHT RELAY VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+B STP RT 1 2 3 4 5 6 7 8 9 10 TL LT/S TAIL LT GND RT/S BC (AT LEFT SIDE OF REAR CROSSMEMBER) BLK WIRE BLU WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) BRN WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE HAZARD FUSE HAZARD SWITCH (A/C CONTROL ASSEMBLY) HOT AT ALL TIMES HOT IN ON OR START IA (AT LEFT KICK PANEL) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR 10 (ON LEFT REAR OF VEHICLE) JUNCTION CONNECTOR 12 (ON LEFT REAR OF VEHICLE) JUNCTION CONNECTOR 13 (ON LEFT REAR OF VEHICLE) JUNCTION CONNECTOR 20 (NEAR LEFT KICK PANEL) LH RH LR GND HAZ INSTRUMENT PANEL J/B) LT GRN WIRE ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) RED WIRE STOP FUSE STOPLIGHT SWITCH (ABOVE BRAKE PEDAL) TAIL FUSE TOWING CONVERTER (REAR OF VEHICLE) TOWING FUSE TRAILER HITCH TURN SIGNAL FLASHER (RIGHT OF TURN SIGNAL SWITCH (PART OF COMB- INATION SWITCH) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE