Toyota Highlander IV (2019-2024) w/ stop/ start system Wiring diagrams

A/C AMPLIFIER ASSEMBLY A/C CONTROL ASSEMBLY A/C EVAPORATOR TEMPERATURE SENSOR A/C RADIATOR DAMPER SERVO SUB-ASSEMBLY 1 A/C RADIATOR DAMPER SERVO SUB-ASSEMBLY 2 A/C UNIT (AIR CONDITIONING HARNESS ASSEMBLY) B+ BUS BLK WIRE BLOWER DAMPER SERVO SUB-ASSEMBLY 1 BLOWER W/ FAN MOTOR SUB ASSEMBLY BLU WIRE BLW BUS - BUS G COMPRESSOR W/ PULLEY ASSEMBLY COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DGND ENGINE ROOM R/B 1 ASSEMBLY FDEF GRN WIRE GRY WIRE HOT AT ALL TIMES HTR FUSE INSTRUMENT PANEL J/B ASSEMBLY LOUT LT BLU WIRE LT GRN WIRE MIRROR HEATER SWITCH, REAR WINDOW DEFOGGER SWITCH, FRONT SEAT HEATER SWITCH ORG/ WIRE PNK SOL+ WIRE PNK WIRE PPL PPL PNK WIRE PPL/BLU WIRE PPL/GRY WIRE PPL/ORG WIRE RED WIRE RELAY ENERGIZED RIGHT END OF DASH) ROUT SEATS SYSTEM SOL + W/ 12.3 INCH DISPLAY W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE

A/C COMP FUSE A/C COMP RELAY A/C PRESSURE SENSOR A/C W/ PMP FUSE AMBIENT TEMPERATURE SENSOR (THERMISTOR ASSEMBLY) BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COOLER (ROOM TEMPERATURE SENSOR) THERMISTOR COOLING FAN ECU CRANK POSITION SENSOR DIODE ECM (LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENSOR ENGINE ROOM J/B 1 ASSEMBLY ENGINE ROOM R/B 1 ASSEMBLY FAN 1 FUSE FAN-2 FUSE GRN WIRE GRY WIRE HEATER WATER PUMP ASSEMBLY HOT AT ALL TIMES HOT W/ EFI MAIN RELAY ENERGIZED LT BLU WIRE LT GRN WIRE MAGNET CLUTCH ASSEMBLY MG+ NE+ ORG/ WIRE PNK WIRE PPL/BLU WIRE PPL/GRY WIRE RED WIRE RFC SSR+ VCNE VIO WIRE W/ STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE

A/C AMPLIFIER ASSEMBLY (LEFT CENTER OF DASH) A/C CONTROL ASSEMBLY 2 AUTOMATIC LIGHT CONTROL SENSOR BLK WIRE BLU WIRE CLTB CLTE CLTS COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ECU-ACC FUSE ECU-B 2 FUSE ECU-DCC 2 FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED INSTRUMENT PANEL J/B ASSEMBLY LIGHT IC LOCK LT BLU WIRE LT GRN WIRE MAIN BODY ECU (ON INSTRUMENT PANEL J/B) MGC ORG/ WIRE PNK WIRE PPL PPL/BLU (OR BLU) WIRE PPL/BLU WIRE PPL/GRN WIRE PPL/GRY WIRE PPL/VIO WIRE PPL/WHT WIRE PRE RBBU RBUG RBUS RDFG REAR SEAT HEATER SWITCH RED WIRE RELAY ENERGIZED RIGHT END OF DASH) RLIN SBLW SEATS SYSTEM SG-1 SG-2 SG-4 TAM VIO WIRE W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE

A/C AMPLIFIER ASSEMBLY A/C CONTROL ASSEMBLY A/C EVAPORATOR TEMPERATURE SENSOR A/C FUSE A/C RADIATOR DAMPER SERVO SUB-ASSEMBLY 1 A/C RADIATOR DAMPER SERVO SUB-ASSEMBLY 2 A/C UNIT (AIR CONDITIONING HARNESS ASSEMBLY) B+ BUS BLK WIRE BLOWER DAMPER SERVO SUB-ASSEMBLY 1 BLOWER W/ FAN MOTOR SUB ASSEMBLY BLW BUS - BUS G COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM ENGINE ROOM R/B 1 ASSEMBLY ENGINE STOP, START ECU FDEF GRY WIRE HOT AT ALL TIMES HTR FUSE INSTRUMENT PANEL J/B ASSEMBLY LOUT LT BLU WIRE LT GRN WIRE MIRROR HEATER SWITCH, REAR WINDOW DEFOGGER SWITCH, FRONT SEAT HEATER SWITCH ORG/ WIRE PNK WIRE PPL PPL GND PPL PNK WIRE PPL/GRY WIRE PPL/ORG WIRE PPL/PNK ILL- WIRE RED WIRE RELAY ENERGIZED RIGHT END OF DASH) ROUT SEATS SYSTEM VIO WIRE W/ 12.3 INCH DISPLAY W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE

A/C AMPLIFIER ASSEMBLY (LEFT CENTER OF DASH) A/C CONTROL ASSEMBLY 2 AUTOMATIC LIGHT CONTROL SENSOR BATT-S FUSE BLK WIRE BLU WIRE CLTB CLTE CLTS COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ECU-ACC FUSE ECU-DCC 2 FUSE ENGINE COOLANT TEMPERATURE SENSOR (GRILLE SHUTTER) FLOOR J/B 5 GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED HOT W/ IGCT RELAY ENERGIZED HYBRID VEHICLE CONTROL ECU IGCT 2 FUSE INSTRUMENT PANEL J/B ASSEMBLY IWP LIGHT IC LT BLU WIRE LT GRN WIRE MAIN BODY ECU (ON INSTRUMENT PANEL J/B) NIWP ORG/ WIRE PNK WIRE PPL/BLK WIRE PPL/GRN WIRE PPL/GRY WIRE PPL/VIO WIRE PPL/WHT WIRE PRE RBBU RBUG RBUS RDFG REAR SEAT HEATER SWITCH RED WIRE RELAY ENERGIZED RIGHT END OF DASH) RIGHT QUARTER PANEL RLIN SBLW SEATS SYSTEM SG-1 SG-4 TAM VIO WIRE W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE

ACL AIR BAG SENSOR ASSEMBLY AWD ECU ASSEMBLY BEHIND LEFT QUARTERPANEL) BLK WIRE BLU WIRE BRAKE ACTUATOR ASSEMBLY CANN CANP CAYH CAYL ECU-ACC FUSE ECU-B 2 FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ HOT W/ ACC RELAY ENERGIZED INSTRUMENT PANEL J/B ASSEMBLY INTEGRATION CONTROL SUB-ASSEMBLY LT BLU WIRE LT GRN WIRE NETWORK GATEWAY ECU (RIGHT END OF DASH) OCCUPANT DETECTION ECU ORG/ WIRE PNK WIRE POWER STEERING ECU (RACK, PINION POWER STEERING GEAR ASSEMBLY) PPL/PNK WIRE PPL/VIO WIRE PPL/WHT WIRE RED WIRE RIGHT END OF DASH) RIGHT HEADLIGHT ECU SUB-ASSEMBLY RIGHT OUTER MIRROR CONTROL ECU ASSEMBLY STEERING SENSOR VIO WIRE W/ 12.3 INCH DISPLAY W/ ADAPTIVE FRONT LIGHTING SYSTEM W/ MEMORY W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE

A/F HTR RELAY BRN WIRE DEF RELAY ECO RUN VEHICLE CONVERTER ASSEMBLY EFI MAIN RELAY EFI MAIN RELAY 2 EFI- MAIN RELAY 3 ENGINE HOOD COURTESY SWITCH (HOOD LOCK ASSEMBLY) EXCEPT HYBRID FUEL PUMP RELAY HEATER WATER PUMP ASSEMBLY INTEGRATION CONTROL SUB-ASSEMBLY INV RELAY INV W/ PMP RELAY INVERTER W/ CONVERTER ASSEMBLY LEFT FOG LIGHT ASSEMBLY LEFT HEADLIGHT ASSEMBLY LEFT HEADLIGHT ECU SUB-ASSEMBLY LEVEL WARNING SWITCH ASSEMBLY (WASHER MOTOR, PUMP ASSEMBLY) MIR HTR RELAY MULTI- DISPLAY ASSEMBLY NAVIGATION ECU OIL PMP RELAY OIL PUMP W/ MOTOR ASSEMBLY RADIO RECEIVER ASSEMBLY RADIO SETTING CONDENSER RADIO, DISPLAY RECEIVER ASSEMBLY S/HTR F/L RELAY S/HTR F/R RELAY ST RELAY VVT RELAY W/ 12.3 INCH DISPLAY W/ 8 INCH DISPLAY W/ ADAPTIVE FRONT LIGHTING SYSTEM W/ DOUBLE BEAM HEADLIGHT W/ SINGLE BEAM HEADLIGHT W/ STOP/ START SYSTEM W/O ADAPTIVE FRONT-LIGHTING SYSTEM W/O MEMORY WHT/BLK WIRE WIPER RELAY WIRELESS DOOR LOCK BUZZER

AIR BAG SENSOR ASSEMBLY AUTO BBC 2 FUSE BGND BLK WIRE BLU WIRE BRAKE ACTUATOR ASSEMBLY BSW BUCKLE CENTER CONSOLE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DRL OFF ECU-ACC FUSE ECU-DCC 2 FUSE ELECTRIC PARKING BRAKE SWITCH ASSEMBLY ENGINE ROOM R/B 1 ASSEMBLY ENGINE STOP, START ECU GRN WIRE GRY WIRE HEAD HEADLIGHT DIMMER SWITCH ASSEMBLY HOLD SWITCH HOT AT ALL TIMES HOT W/ HOT W/ ACC RELAY ENERGIZED INSTRUMENT PANEL J/B ASSEMBLY L OFF LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LEFT FRONT SEAT INNER BELT ASSEMBLY LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE MAIN BODY ECU OCCUPANT DETECTION ECU ORG/ WIRE PNK WIRE PPL/BLU WIRE RED WIRE RELAY ENERGIZED RIGHT END OF DASH) RIGHT FRONT SEAT INNER BELT ASSEMBLY SLT 1 SPIRAL CABLE SUB-ASSEMBLY STEERING SENSOR SWITCH TAIL VIO WIRE W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE

BLK WIRE BLU WIRE BLU/ BLK WIRE BRN WIRE BSW CENTER REAR SEAT INNER BELT ASSEMBLY COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ENGINE STOP, START ECU FRONT IN WEIGHT DETECTION SENSOR SUB ASSEMBLY GRN BRN/ WIRE GRN WIRE GRY WIRE LEFT REAR SEAT INNER BELT ASSEMBLY LEFT REAR SEAT INNER BELT ASSEMBLY 2 LT BLU WIRE LT GRN WIRE MA (MIDDLE OF CENTER CONSOLE) OCCUPANT DETECTION ECU ORG/ WIRE PNK BGND WIRE PNK WIRE PPL PPL/BLU WIRE RCBT RCSB REAR IN WEIGHT DETECTION SENSOR SUB ASSEMBLY RED WIRE RIGHT FRONT SEAT INNER BELT ASSEMBLY RIGHT REAR SEAT INNER BELT ASSEMBLY RLBT RLSB RRBT RRSB SGD SIG SVC VIO WIRE W/ REAR SEPARATE SEAT 1 W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE

-DP BEHIND LEFT QUARTERPANEL) BLK WIRE BLU WIRE CERTIFICATION ECU COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DATA EAU ECU-ACC FUSE ECU-B 2 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 LEFT STEERING PAD SWITCH LT BLU WIRE MAIN BODY ECU MSM+ MSTI ORG/ WIRE PNK CSEL WIRE PNK WIRE PPL GND PPL/BLK WIRE PPL/BLU WIRE PPL/ORG WIRE PPL/WHT WIRE PRG PNK CSEL PPL/PNK +B WIRE RADIO, DISPLAY RECEIVER ASSEMBLY RCO RDAM RED WIRE SPIRAL CABLE SUB-ASSEMBLY STEERING PAD SWITCH ASSEMBLY SWG W/ 12.3 INCH DISPLAY W/ 8 INCH DISPLAY W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE