Toyota Highlander IV (2019-2024) main body ecu Wiring diagrams

ALL DR LOCK RELAY BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BZR COMPUTER DATA LINES SYSTEM D DR UNLOCK RELAY D/L FUSE DOOR BACK FUSE DOOR CONTROL SWITCH ASSEMBLY ECU-ACC FUSE ECU-DCC 2 FUSE ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY) GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HORN HORNS SYSTEM HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED INSTRUMENT PANEL J/B ASSEMBLY L/D-DR UNLOCK RELAY LCTY LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LOCK LSWL LT BLU WIRE LT GRN WIRE MAIN BODY ECU ORG/ WIRE PNK WIRE PPL/BLK WIRE PPL/BLU WIRE PPL/PNK WIRE RCTY RED WIRE RELAY ENERGIZED RIGHT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY UNLOCK VIO WIRE W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE

ACAN BLK WIRE BLU WIRE BZR CANN CANP CLTB CLTE CLTS COMBINATION METER ASSEMBLY DOOR LOCKS, ANTI-THEFT SYSTEMS DOOR LOCKS, TRUNK, TAILGATE, FUEL DOORS SYSTEMS DRL ECU-ACC FUSE ECU-DCC 2 FUSE EXTERIOR LIGHTS, INTERIOR LIGHTS SYSTEMS FLCL FRCL GRN WIRE GRY WIRE GSW HEAD HEADLIGHTS SYSTEM HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS HORN HORNS SYSTEM HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED INSTRUMENT PANEL J/B ASSEMBLY LCTY LEFT HEADLIGHT ECU SUB-ASSEMBLY LSWL LSWR LT BLU WIRE LT GRN WIRE MAIN BODY ECU METER MIRROR SUB-ASSEMBLY NOT USED NOT USED ORG/ WIRE PNK WIRE POSITION CONTROL ECU ASSEMBLY POWER WINDOWS SYSTEM PPL/BLU WIRE RCTY RED WIRE RELAY ENERGIZED SUPPLEMENTAL RESTRAINTS SYSTEM VIO WIRE W/ ADAPTIVE FRONT LIGHTING SYSTEM W/ MEMORY WHT WIRE WHT/BLK WIRE WIPER/WASHER SYSTEM WPS YEL WIRE

2.5L HYBRID 3.5L A/C AMPLIFIER ASSEMBLY AHID AIR CONDITIONING, WIPER/WASHER SYSTEMS BLK WIRE BLU WIRE CANN CANP CERTIFICATION ECU DOOR LOCKS, ANTI-THEFT SYSTEMS GRN WIRE GRY WIRE HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS INTEGRATION CONTROL SUB-ASSEMBLY LEFT OUTER MIRROR CONTROL ECU ASSEMBLY LSBO LT BLU WIRE LT GRN WIRE MAIN BODY ECU MEMORY SYSTEMS MIRB MIRE MIRS MULTIPLEX NETWORK DOOR ECU NETWORK GATEWAY ECU PBDS PNK WIRE RED WIRE RIGHT END OF DASH) RIGHT HEADLIGHT ECU SUB-ASSEMBLY RIGHT OUTER MIRROR CONTROL ECU ASSEMBLY RWRY TRUNK, TAILGATE, FUEL DOORS SYSTEM W/ 12.3 INCH DISPLAY W/ ADAPTIVE FRONT LIGHTING SYSTEM W/ MEMORY WARNING SYSTEMS WHT WIRE WHT/BLK WIRE WIPER/WASHER SYSTEM YEL WIRE

BLK WIRE BLU WIRE COMPUTER DATA LINES SYSTEM DOME CUT RELAY DOME FUSE ECU-ACC FUSE ECU-DCC 2 FUSE FLCL FRCL GRN WIRE GRY WIRE HD (UPPER LEFT END OF DASH) HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED INSTRUMENT PANEL J/B ASSEMBLY LCTY LEFT FRONT DOOR LOCK W/ MOTOR ASSEMBLY LEFT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LEFT REAR DOOR LOCK W/ MOTOR ASSEMBLY LSWL LSWR LT GRN WIRE MAIN BODY ECU ORG/ WIRE PPL/BLK WIRE PPL/BLU WIRE PPL/GRN WIRE PPL/RED WIRE RCTY RED WIRE RELAY ENERGIZED RIGHT FRONT DOOR LOCK W/ MOTOR ASSEMBLY RIGHT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RIGHT REAR DOOR LOCK W/ MOTOR ASSEMBLY WHT WIRE WHT/BLK WIRE YEL WIRE

-DP BACK DOOR LOCK ASSEMBLY W/ COURTESY LIGHT SWITCH BLK WIRE BLU WIRE BRAKE FLUID LEVEL WARNING SWITCH (BRAKE MASTER CYLINDER RESERVOIR SUB-ASSEMBLY) COMPUTER DATA LINES SYSTEM COURTESY CTY EAU ECU-ACC FUSE GRY WIRE HOT W/ HOT W/ ACC RELAY ENERGIZED INSTRUMENT PANEL J/B ASSEMBLY LCTY LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LEFT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LEFT STEERING PAD SWITCH STEERING PAD SWITCH ASSEMBLY LT BLU WIRE LT GRN WIRE MAIN BODY ECU ORG/ WIRE RADIO, DISPLAY RECEIVER ASSEMBLY RCTY RIGHT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RIGHT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY SPIRAL CABLE SUB-ASSEMBLY SWG SWITCH W/ 12.3 INCH DISPLAY W/ 8 INCH DISPLAY WHT WIRE WHT/BLK WIRE YEL WIRE

-DP BACK DOOR LOCK ASSEMBLY W/ COURTESY LIGHT SWITCH BLK WIRE BLU WIRE COMPUTER DATA LINES SYSTEM CTY EAU ECU-ACC FUSE GRY WIRE HOT W/ INSTRUMENT PANEL J/B ASSEMBLY LCTY LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LEFT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LEFT STEERING PAD SWITCH LT GRN WIRE MAIN BODY ECU ORG/ WIRE RADIO, DISPLAY RECEIVER ASSEMBLY RCTY RELAY ENERGIZED RIGHT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RIGHT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY SPIRAL CABLE SUB-ASSEMBLY STEERING PAD SWITCH ASSEMBLY SWG W/ 12.3 INCH DISPLAY W/ 8 INCH DISPLAY WHT WIRE WHT/BLK WIRE YEL WIRE

A/C CONTROL ASSEMBLY 2 ACAN BLK WIRE BLU WIRE BRN WIRE CENTER CONSOLE COMPUTER DATA LINES SYSTEM DOOR CONTROL SWITCH ASSEMBLY ECU-ACC FUSE ECU-DCC 2 FUSE ENGINE ROOM J/B 1 ASSEMBLY GLOVE BOX LIGHT ASSEMBLY GRN WIRE GRY WIRE HAZARD WARNING SIGNAL SWITCH ASSEMBLY HD (UPPER LEFT END OF DASH) HEAD HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED INSTRUMENT PANEL J/B ASSEMBLY J/B FUSE LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LEFT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LT BLU WIRE LT GRN WIRE MAIN BODY ECU ORG/ WIRE PANEL FUSE PATTERN SELECT SWITCH PNK WIRE PPL PPL/BLK WIRE PPL/BLU WIRE PPL/GRN WIRE PPL/PNK WIRE PPL/RED WIRE PPL/YEL WIRE RED WIRE RELAY ENERGIZED RIGHT END OF DASH) RIGHT FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY RIGHT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY TAIL RELAY TELLTALE LIGHT ASSEMBLY VIO WIRE W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE

BLK WIRE BLU WIRE CLS COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ECU-ACC FUSE ECU-DCC 2 FUSE ENGINE ROOM R/B 2 ASSEMBLY ENGINE STOP, START ECU GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ HOT W/ ACC RELAY ENERGIZED IG PNK TILT WIRE INSTRUMENT PANEL J/B ASSEMBLY LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY MAIN BOARD MAIN BODY ECU OPN ORG/ WIRE PNK WIRE PPL/BLK WIRE PPL/BLU WIRE PPL/PNK WIRE RED WIRE RIGHT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY ROOF CONSOLE BOX ASSEMBLY S/ROOF FUSE SHADE FUSE SLIDING ROOF CONTROL ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) SUNSHADE CONTROL ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) TILT TILT DOWN TILT UP SLIDE OPEN TILT VENT SLIDE CLOSE VENT CLS VIO WIRE W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE

AUTO BLK WIRE BLU WIRE COMPUTER DATA LINES SYSTEM DOOR R/R FUSE DOWN ECU-ACC FUSE ECU-DCC 2 FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED INSTRUMENT PANEL J/B ASSEMBLY LEFT REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LEFT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LIN LT GRN WIRE MAIN BODY ECU ORG/ WIRE PNK WIRE RED WIRE RELAY ENERGIZED RIGHT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RIGHT REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RIGHT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY VIO WIRE WHT WIRE WHT/BLK WIRE

BLK WIRE BLU WIRE BRN WIRE BZR 16 4 CANH EP CLS COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ECU-ACC FUSE ECU-DCC 2 FUSE ENGINE STOP, START ECU GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ HOT W/ ACC RELAY ENERGIZED INSTRUMENT PANEL J/B ASSEMBLY KEY LOCK KEY UNLOCK LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LEFT FRONT DOOR LOCK W/ MOTOR ASSEMBLY LT BLU WIRE MAIN BOARD GND MAIN BODY ECU OPN ORG/ WIRE PNK WIRE PPL/BLK WIRE PPL/BLU WIRE PPL/PNK WIRE RED WIRE RELAY ENERGIZED RIGHT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY ROOF CONSOLE BOX ASSEMBLY S/ROOF FUSE SLIDE CLOSE CLS SLIDE OPEN OPN SLIDING ROOF CONTROL ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) TILT DOWN CLS TILT UP OPN W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE WIRELESS DOOR LOCK BUZZER