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

A/C AMPLIFIER ASSEMBLY (LEFT CENTER OF DASH) A/C CONTROL ASSEMBLY 2 BLK WIRE BLU WIRE COMPUTER DATA LINES SYSTEM ENGINE STOP, START ECU FRONT SEAT HEATER SWITCH GRY WIRE INSTRUMENT PANEL J/B ASSEMBLY LOUT LT BLU WIRE LT GRN WIRE ORG/ WIRE PNK WIRE PPL PPL/GRY WIRE PPL/ORG WIRE PPL/VIO WIRE PPL/WHT WIRE RED WIRE RELAY ENERGIZED ROUT SG-7 TSL TSR VIO WIRE W/ 12.3 INCH DISPLAY W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE

A/C CONTROL ASSEMBLY 2 BLK WIRE BLU WIRE ENGINE STOP, START ECU FRONT SEAT HEATER SWITCH GRN WIRE GRY WIRE INSTRUMENT PANEL J/B ASSEMBLY ORG/ WIRE PNK WIRE PPL PPL/GRY WIRE PPL/ORG WIRE PPL/VIO WIRE PPL/WHT WIRE RED WIRE RELAY ENERGIZED RIGHT FRONT SEAT HEATER ASSEMBLY RIGHT FRONT SEAT HEATER CONTROL SUB-ASSEMBLY SEAT BACK HEATER SEAT CUSHION HEATER SWR VIO WIRE W/ 12.3 INCH DISPLAY W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE

AIR FUEL RATIO SENSOR (BANK 1 SENSOR 1) SHIELD AIR FUEL RATIO SENSOR 2 (BANK 2 SENSOR 1) SHIELD BATTERY BLK WIRE BLK/DK GRN WIRE BLK/GRY WIRE BLOWER W/ FAN MOTOR SUB ASSEMBLY BRAKE ACTUATOR ASSEMBLY BRN WIRE CA (HYBRID) CB (HYBRID) CD (EXCEPT HYBRID) (TOP LEFT REAR OF ENGINE) CG (HYBRID) CK (HYBRID) DIODE (HEATER WATER PUMP ASSEMBLY) ENGINE ROOM R/B 2 ASSEMBLY FUEL PUMP CONTROL ECU GA (LEFT CENTER OF DASH) KNOCK CONTROL SENSOR (BANK 1) SHIELD KNOCK CONTROL SENSOR (BANK 2) SHIELD LOW/HIGH DRL OA (EXCEPT HYBRID) OA (HYBRID) QUICK HEATER ASSEMBLY RADIATOR SHUTTER SUB- ASSEMBLY RIGHT FOG LIGHT ASSEMBLY RIGHT HEADLIGHT ASSEMBLY RIGHT HEADLIGHT ECU SUB-ASSEMBLY RIGHT STEERING PAD SWITCH S/HTR R/L RELAY S/HTR R/R RELAY SHIELD SPIRAL CABLE SUB-ASSEMBLY STEERING PAD SWITCH ASSEMBLY SWING GRILLE ACTUATOR ASSEMBLY W/ ADAPTIVE FRONT LIGHTING SYSTEM W/ DOUBLE BEAM HEADLIGHT W/ SINGLE BEAM HEADLIGHT W/ STOP/ START SYSTEM W/O ADAPTIVE FRONT-LIGHTING SYSTEM WHT WIRE WHT/BLK WIRE

A/C AMPLIFIER ASSEMBLY BRN WIRE CAN JUNCTION TERMINAL 1 CAN JUNCTION TERMINAL 2 CERTIFICATION ECU CLEARANCE WARNING ECU ASSEMBLY DCM (TELEMATICS TRANSCEIVER) DOWNHILL ASSIST CONTROL SWITCH ECO RUN CANCEL SWITCH ASSEMBLY ELECTRIC PARKING BRAKE SWITCH ASSEMBLY EXCEPT HYBRID FUEL LID W/ MOTOR LOCK ASSEMBLY GLOVE BOX LIGHT ASSEMBLY HA (RIGHT END OF DASH) HAZARD WARNING SIGNAL SWITCH ASSEMBLY ID CODE BOX (IMMOBILIZER CODE ECU) LEFT REAR SEAT HEATER ASSEMBLY MILLIMETER WAVE RADAR SENSOR ASSEMBLY NETWORK GATEWAY ECU PATTERN SELECT SWITCH PATTERN SELECT SWITCH ASSEMBLY PPL REAR POWER OUTLET SOCKET ASSEMBLY 1 SHIFT LOCK CONTROL UNIT ASSEMBLY SHIFT POSITION INDICATOR STEREO COMPONENT AMPLIFIER ASSEMBLY TELLTALE LIGHT ASSEMBLY TO GROUND HB (DIAGRAM 5 OF 9) TO GROUND HG (DIAGRAM 5 OF 9) TO GROUND MH (DIAGRAM 3 OF 9) USB RELAY 1 USB RELAY 2 VOLTAGE INVERTER ASSEMBLY VSC OFF SWITCH W/ PARKING SUPPORT BRAKE SYSTEM W/ SEPARATE AMPLIFIER W/ STOP/ START SYSTEM WHT/BLK WIRE

BRAKE FLUID LEVEL WARNING SWITCH (BRAKE MASTER CYLINDER RESERVOIR SUB-ASSEMBLY) BRAKE MASTER CYLINDER SUB-ASSEMBLY BRAKE PEDAL LOAD SENSING SWITCH ASSEMBLY CF (EXCEPT HYBRID) (TOP FRONT OF ENGINE) COMPRESSOR W/ PULLEY ASSEMBLY ENGINE STOP, START ECU EXCEPT HYBRID HYBRID VEHICLE CONTROL ECU IGNITION COIL ASSEMBLY 1 IGNITION COIL ASSEMBLY 2 IGNITION COIL ASSEMBLY 3 IGNITION COIL ASSEMBLY 4 IGNITION COIL ASSEMBLY 5 IGNITION COIL ASSEMBLY 6 INVERTER W/ CONVERTER ASSEMBLY LEFT FRONT SPEED SENSOR SHIELD LEFT REAR AXLE HUB, BEARING ASSEMBLY SHIELD RIGHT FRONT SPEED SENSOR SHIELD RIGHT REAR AXLE HUB, BEARING ASSEMBLY SHIELD SHIELD STOP LIGHT SWITCH ASSEMBLY VACUUM WARNING SWITCH ASSEMBLY VEHICLE APPROACHING SPEAKER CONTROLLER W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT/BLK WIRE WINDSHIELD WIPER MOTOR ASSEMBLY WINDSHIELD WIPER RELAY ASSEMBLY

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 BACK RELAY 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 LSWR LT BLU WIRE LT GRN WIRE MAIN BODY ECU ORG/ WIRE PNK WIRE PPL/BLK WIRE PPL/BLU 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

BLK WIRE BLU WIRE BRAKE ACTUATOR ASSEMBLY BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM GRN WIRE GRY WIRE INSTRUMENT PANEL J/B ASSEMBLY LEFT FRONT DOOR LOCK W/ MOTOR ASSEMBLY LSSR LT BLU WIRE LT GRN WIRE PNK WIRE PPL/BLU WIRE RED WIRE RELAY ENERGIZED RIGHT REAR DOOR LOCK W/ MOTOR ASSEMBLY VIO WIRE W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE WIRELESS DOOR LOCK BUZZER

BLK WIRE BLU WIRE BRAKE ACTUATOR ASSEMBLY BRN WIRE CLGB COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ELECTRICAL KEY ANTENNA GRN WIRE GRY WIRE LSSR LT BLU WIRE LT GRN WIRE ORG/ WIRE PNK WIRE PPL/BLU WIRE PPL/ORG WIRE REAR INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY 1 REAR INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY 2 RED WIRE RIGHT REAR DOOR LOCK W/ MOTOR ASSEMBLY VIO WIRE W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE WIRELESS DOOR LOCK BUZZER YEL WIRE

BACK DOOR OPENER SWITCH ASSEMBLY BEHIND LEFT QUARTERPANEL) BLK WIRE BLU WIRE CERTIFICATION ECU (RIGHT END OF DASH) CSEL DATA ECU-B 2 FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL J/B ASSEMBLY LEFT FRONT DOOR OUTSIDE HANDLE ASSEMBLY LOCK LT BLU WIRE PNK WIRE PPL PPL/BLK WIRE PPL/BLU WIRE PPL/PNK WIRE PPL/VIO WIRE PPL/WHT WIRE RCO RDAM RED WIRE RELAY ENERGIZED RIGHT FRONT DOOR OUTSIDE HANDLE ASSEMBLY VIO WIRE W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE

A/C CONTROL ASSEMBLY 2 BLK WIRE BLU WIRE BRN WIRE ENGINE STOP, START ECU GRN WIRE GRY WIRE INSTRUMENT PANEL J/B ASSEMBLY LT BLU WIRE ORG/ WIRE PNK WIRE PPL/ORG WIRE PPL/VIO WIRE PPL/WHT WIRE REAR SEAT HEATER SWITCH RED WIRE RELAY ENERGIZED RIGHT REAR SEAT HEATER ASSEMBLY RIGHT REAR SEAT HEATER CONTROL SUB-ASSEMBLY RLIN SEAT BACK HEATER SEAT CUSHION HEATER SWR VIO WIRE W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE