Toyota Highlander II (2007-2010) (behind left end of dash) Wiring diagrams

1 2 3 4 5 6 +B VM SI 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 RBUS 1 2 3 4 5 6 7 8 9 10 ILL+ IG+ 21 28 THW 33 34 CANH CANL 8 14 MREL RFC A/C AMPLIFIER ASSEMBLY A/C CONTROL ASSEMBLY 2 (W/ REAR A/C) A/C EVAPORATOR TEMPERATURE SENSOR AUTOMATIC LIGHT CONTROL SENSOR (W/ AUTOMATIC A/C) BLK WIRE BLK/RED WIRE BLOWER MOTOR CONTROL (W/ REAR A/C) BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CONNECTOR HOUSING COLOR (BROWN) CONNECTOR HOUSING COLOR (GRAY) COOLING FAN ECU COOLING FAN MOTOR COOLING FAN MOTOR 2 DAMPER SERVO MOTOR (AIR MIX) DAMPER SERVO MOTOR (AIR VENT MODE) ECM 2 3 1 EFI RELAY ENGINE COOLANT TEMPERATURE SENSOR (REAR OF ENGINE) ENGINE ROOM R/B ENGINE ROOM RELAY BOX (IF EQUIPPED) FAN MAIN FUSE FAN MAIN RELAY FRONT ROOM TEMPERATURE SENSOR (W/ AUTOMATIC A/C) GRN WIRE GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL J/B J/C LT BLU WIRE LT GRN WIRE M+(S) M-(S) MAIN FAN MOTOR MPX ORG/ WIRE PNK WIRE RBUG BLWH RBBU REAR BLOWER W/ FAN MOTOR SUB- ASSEMBLY REAR COOLING UNIT ASSEMBLY (W/ REAR A/C) REAR EVAPORATOR SUB ASSEMBLY (W/ REAR AUTOMATIC A/C) RED WIRE RLIN RR CLR FUSE SG-6 SGND SUB FAN MOTOR TEC TSL TSR VIO WIRE W/ REAR A/C WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 +S 1 2 3 4 5 6 7 8 9 10 ILL+ IG+ 4 3 2 1 +BWP GND SWP NWP A/C 2 FUSE A/C AMPLIFIER ASSEMBLY A/C BLOWER ASSEMBLY A/C CONTROL ASSEMBLY A/C D FUSE A/C EVAPORATOR TEMPERATURE SENSOR AUTO B+ BUS BLK WIRE BLU WIRE BLW BRN WIRE BUS - BUS G CANH CANL SG-2 GND COMPUTER DATA LINES SYSTEM CONNECTOR HOUSING COLOR (BLACK) CONNECTOR HOUSING COLOR (BLUE) CONNECTOR HOUSING COLOR (GREEN) CONNECTOR HOUSING COLOR (RED) WIRE DAMPER SERVO MOTOR (AIR INLET) DAMPER SERVO MOTOR (AIR MIX DRIVER SIDE) DAMPER SERVO MOTOR (AIR MIX FRONT PASSENGER SIDE) DAMPER SERVO MOTOR (AIR VENT MODE) FR WIP FUSE GAUGE 1 FUSE GRN WIRE GRY WIRE ILL- SG GND INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) INV W/P FUSE INVERTER WATER PUMP ASSEMBLY J/B J/C LT BLU WIRE LT GRN WIRE OFF ORG/ WIRE PNK WIRE PRE R/B 3 (LEFT SIDE OF ENGINE COMPT) RED WIRE RELAY ENERGIZED RH TR SG-4 SGA SPIRAL CABLE SUB-ASSEMBLY TAM TEA TEMP TSP TSD VIO WIRE W/ REAR A/C WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER MOTOR ASSEMBLY WIP YEL WIRE

A/C AMBIENT TEMPERATURE SENSOR (FRONT CENTER OF GRILL) A/C PRESSURE SENSOR (UNDER RIGHT SIDE DASH) A/C W/P RELAY BLK WIRE BLU WIRE BRN WIRE CLK+ COOLING FAN ECU 2 COOLING FAN MOTOR 2 DIN DOUT ECU-B FUSE FRONT BLOWER FAN MOTOR (RIGHT SIDE INSTRUMENT PANEL) FRONT ROOM TEMPERATURE SENSOR (BEHIND LEFT CENTER OF DASH) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HTR FUSE IGCT FUSE IGCT RELAY J/C LT BLU WIRE LT GRN WIRE M+(S) M-(S) NCA WIRE ORG/ WIRE PNK WIRE R/B 2 (LEFT SIDE OF ENGINE COMPT) R/B 4 (LEFT SIDE OF ENGINE COMPT) RED WIRE RR CLR FUSE STBI SUB FAN MOTOR TOP OF TRANSMISSION) TSL TSR VIO WIRE W/ CONVERTER INVERTER ASSEMBLY W/ MOTOR COMPRESSOR ASSEMBLY WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 RBUS 1 2 3 4 5 6 7 8 9 10 ILL+ IG+ 18 16 15 14 STB ETI ITE CLK 19 28 THW 29 23 PNK NIWP IWP WIRE 33 25 CANL CANH A/C 2 FUSE A/C AMPLIFIER ASSEMBLY A/C CONTROL ASSEMBLY 2 (W/ REAR A/C) A/C EVAPORATOR TEMPERATURE SENSOR BLK WIRE BLOWER MOTOR CONTROL (W/ REAR A/C) BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CONNECTOR HOUSING COLOR (BROWN) CONNECTOR HOUSING COLOR (GRAY) COOLING FAN ECU COOLING FAN MOTOR DAMPER SERVO MOTOR (AIR MIX) DAMPER SERVO MOTOR (AIR VENT MODE) FAN 1 FUSE FAN MAIN RELAY 1 FAN MAIN RELAY 2 FAN-2 FUSE GRN WIRE GRN/BLK WIRE GRY WIRE HOT AT ALL TIMES HOT W/ INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C LT BLU WIRE LT GRN WIRE M+(S) M-(S) MAIN FAN MOTOR MPX PNK WIRE R/B 2 (LEFT SIDE OF ENGINE COMPT) RBUG BLWH RBBU REAR BLOWER MOTOR (BEHIND RIGHT QUARTERPANEL) REAR COOLING UNIT ASSEMBLY (W/ REAR A/C) REAR EVAPORATOR SUB ASSEMBLY (W/ REAR AUTOMATIC A/C) RED WIRE RLIN SG-6 SGND TEC VIO WIRE W/ REAR A/C WHT WIRE WHT/BLK WIRE WP MREL YEL WIRE

+BS GND CANL 12 14 6 TS CANL CANH BLK WIRE BLU WIRE BM CANH HDCS FSW+ BRAKE PEDAL LOAD SENSING SWITCH (ABOVE BRAKE PEDAL) BRK-LP RELAY BRN WIRE DLC 3 DOWNHILL ASSIST CONTROL SWITCH (IF EQUIPPED) ECU-IG 2 FUSE ENGINE ROOM R/B GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT PANEL J/B LEFT FRONT SPEED SENSOR (LEFT FRONT WHEEL HUB) LEFT REAR SPEED SENSOR LT GRN WIRE ORG/ WIRE PARKING BRAKE SWITCH (AT BASE OF PARKING BRAKE PEDAL) PKB CSW STPO PNK WIRE RED WIRE RIGHT FRONT SPEED SENSOR (RIGHT FRONT WHEEL HUB) RIGHT REAR SPEED SENSOR RL- RL+ FR- FR+ RR- RR+ FL- FL+ SKID CONTROL BUZZER (BEHIND LEFT SIDE OF DASH) SKID CONTROL ECU W/ ACTUATOR (RIGHT FRONT OF ENGINE COMPT) STOP FUSE STOP LIGHT SWITCH VIO WIRE VSC 1 FUSE VSC 2 FUSE VSC OFF SWITCH WHT WIRE WHT/BLK WIRE YEL WIRE

21 28 THW 33 34 CANH CANL 8 14 MREL RFC BLK/RED WIRE BLU WIRE BRN WIRE COMPUTER (BEHIND DATA LINES LEFT FRONT HEADLIGHT) COOLING FAN COOLING FAN MOTOR MOTOR 2 COOLING FAN ECU EFI MAIN FUSE EFI RELAY ENGINE CONTROL MODULE ENGINE COOLANT TEMPERATURE SENSOR (REAR OF ENGINE) ENGINE ROOM R/B FAN MAIN FUSE FAN MAIN RELAY GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL J/B J/C M+(S) M-(S) RED WIRE SUB FAN MAIN FAN MOTOR MOTOR SYSTEM VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

19 28 THW 33 25 CANL CANH A/C 2 FUSE BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COOLING FAN ECU COOLING FAN ECU 2 COOLING FAN MOTOR COOLING FAN MOTOR 2 ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) FAN 1 FUSE FAN MAIN RELAY 1 FAN MAIN RELAY 2 FAN-2 FUSE GRN/BLK WIRE GRY WIRE HOT AT ALL TIMES HOT W/ HYBRID VEHICLE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C M+(S) M-(S) MAIN FAN MOTOR R/B 2 (LEFT SIDE OF ENGINE COMPT) RED WIRE SUB FAN MOTOR VIO WIRE WHT WIRE WHT/BLK WIRE

+B(DOME) OR IG 1 2 PIG PGND 14 2 3 4 5 ESS CANL CANH IG BAT BLK WIRE BRN WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM DRIVE IC ECU-B FUSE ENGINE ENGINE ROOM R/B EPS IND EPS ROOM J/B FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START ECU- IG 1 FUSE INSTRUMENT PANEL J/B LT BLU WIRE MASTER IND BUZZER MICRO COMPUTER CAN I/F PNK WIRE POWER STEERING ECU (BEHIND LEFT SIDE OF DASH) POWER STEERING MOTOR ASSEMBLY POWER STEERING TORQUE SENSOR POWER SUPPLY CIRCUIT RED WIRE STEERING SENSOR (IN STEERING COLUMN) TRQF WHT WIRE WHT/BLK WIRE

2 5 10 IG+ 40 39 37 36 FDEF MHTR A/C AMPLIFIER (BEHIND RIGHT SIDE OF DASH) A/C CONTROL ASSEMBLY BLK WIRE BLU WIRE DEICER RELAY DEICER SWITCH ENGINE ROOM R/B ENGINE ROOM RELAY BOX FDFI FR DEF FUSE MIR HTR FUSE FRONT WIPER DEICER (LEFT REAR OF ENGINE COMPT) G/H FUSE GAUGE 1 FUSE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) LEFT OUTER REAR VIEW MIRROR ASSEMBLY MIR HTR FUSE (LEFT SIDE OF ENGINE COMPT) MIR HTR RELAY MIRROR HEATER ORG/ WIRE OUTER MIRROR HEATER SWITCH ASSEMBLY REAR WINDOW DEFOGGER SWITCH RED WIRE RIGHT OUTER REAR VIEW MIRROR ASSEMBLY SW 1 VIO WIRE W/ OUTER MIRROR FOOT LIGHT W/O OUTER MIRROR FOOT LIGHT WHT WIRE WHT/BLK WIRE

+B(DOME) OR IG BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BUZZER CAN I/F CENTER BATTERY BLOWER MOTOR (UNDER REAR SEAT) CHARGE IND COMBINATION METER COMPUTER DATA LINES SYSTEM DRIVE IC E.F.I. ENGINE COOLANT TEMPERATURE SENSOR (TOP FRONT OF ENGINE) ECON IND ENGINE ROOM R/B 2 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 4 EV IND GRN WIRE GRN/BLK WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT PANEL J/B GAUGE 2 FUSE (BEHIND LEFT SIDE OF DASH) LCD (ODO/TRIP) (A/T POSITION) LEFT BATTERY BLOWER MOTOR (UNDER REAR SEAT) LT GRN WIRE MALFUNCTION IND MASTER IND MICRO COMPUTER NCA WIRE OIL DC/ DOME FUSE PUMP DC S FUSE FUSE OIL PUMP MOTOR (LEFT FRONT OF ENGINE COMPT) OPG OPST ORG/ WIRE PNK 28 29 WIRE PNK WIRE POWER SUPPLY CIRCUIT READY IND RED WIRE RIGHT BATTERY BLOWER MOTOR (UNDER REAR SEAT) SPEEDOMETER VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE