Toyota Highlander I facelift (2003-2007) heater fuse Wiring diagrams

A/C TRIPLE PRESSURE SWITCH (ON RIGHT FRONT OF ENGINE COMPT) BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CDS FUSE CONDENSER FAN MOTOR (BEHIND RADIATOR) EG (UNDER LEFT HEADLIGHT) ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B (ON LEFT SIDE OF ENGINE COMPT) FAN FAN 1 RELAY FAN 2 RELAY FAN 3 RELAY FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPT) GRN/BLK WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR 2 (BEHIND LEFT HEADLIGHT) JUNCTION CONNECTOR 5 (LEFT SIDE OF DASH, BEHIND INSTRUMENT CLUSTER) RADIATOR FAN MOTOR (BEHIND RADIATOR) RDI FUSE RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE 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 ILL- ILL- GND SG TEST 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SG MPX+ 4 5 6 1 HI A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) AIR BAG SENSOR ASSEMBLY (BELOW FRONT OF CENTER CONSOLE) AIR INLET CONTROL SERVO MOTOR (BEHIND UPPER CENTER OF DASH) AIR MIX CONTROL SERVO MOTOR (BEHIND CENTER OF DASH) AIR VENT MODE CONTROL SERVO MOTOR (BEHIND LEFT CENTER OF DASH) BLK WIRE BLK/YEL WIRE BLOWER CONTROL SWITCH BLOWER MOTOR (BEHIND RIGHT SIDE OF DASH) BLOWER RESISTOR (BEHIND RIGHT SIDE OF DASH) BLU WIRE BRN WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) CONTROL PANEL DIM ILL+ INTERIOR LIGHTS SYSTEM ECU-B FUSE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) EVAPORATOR TEMPERATURE SENSOR (BEHIND RIGHT SIDE OF DASH) FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPARTMENT) GND B+ GRN WIRE GRN/YEL WIRE GRY WIRE HEATER FUSE HEATER RELAY (RIGHT OF INSTRUMENT PANEL J/B) HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IA (AT LEFT KICK PANEL) IB (AT RIGHT DASH BRACE) IC (AT RIGHT KICK PANEL) ILL+ ILL+ IG INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) HEATER FUSE INTERIOR LIGHTS SYSTEM ILL + JUNCTION CONNECTOR 5 (LEFT SIDE OF DASH, BEHIND INSTRUMENT CLUSTER) LT BLU WIRE LT GRN WIRE LT GRN/RED WIRE MPX MR/F AIR AIF HR ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK SG-1 AMC AMH WIRE PNK/BLU WIRE RADIO 2 FUSE RED WIRE SHORT CONNECTOR (BEHIND LEFT SIDE OF DASH) STX CLK DPD SWD TE TPO AOD AOF SS-4 TP TELLTALE LIGHT ASSEMBLY VIO WIRE W/ NAVIGATION GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) W/O NAVIGATION WHT WIRE WHT/BLK WIRE YEL WIRE YEL/GRN WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 ILL- ILL- GND SG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SG-4 MPX+ SG-3 TR TE TPO AOD AOF A/C AMBIENT TEMPERATURE SENSOR (ON FRONT CENTER OF GRILLE) A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) A/C SOLAR SENSOR (ON UPPER LEFT SIDE OF DASH) AIR BAG SENSOR ASSEMBLY (BELOW FRONT OF CENTER CONSOLE) AIR INLET CONTROL SERVO MOTOR (BEHIND UPPER CENTER OF DASH) AIR MIX CONTROL SERVO MOTOR (BEHIND CENTER OF DASH) AIR VENT MODE CONTROL SERVO MOTOR (BEHIND LEFT CENTER OF DASH) BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLOWER MOTOR (BEHIND RIGHT SIDE OF DASH) BLOWER MOTOR CONTROLLER BLU WIRE BLW BRN WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) CONTROL PANEL DIM ILL+ INTERIOR LIGHTS SYSTEM ECU-B FUSE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) EVAPORATOR TEMPERATURE SENSOR (BEHIND RIGHT SIDE OF DASH) FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPARTMENT) GND B+ GRN WIRE GRN/YEL WIRE GRY WIRE HEATER FUSE HEATER RELAY (RIGHT OF INSTRUMENT PANEL J/B) HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IA (AT LEFT KICK PANEL) IB (AT RIGHT DASH BRACE) IC (AT RIGHT KICK PANEL) ILL+ ILL+ IG INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) HEATER FUSE INTERIOR LIGHTS SYSTEM ILL + JUNCTION CONNECTOR 5 (LEFT SIDE OF DASH, BEHIND INSTRUMENT CLUSTER) LT BLU WIRE LT GRN WIRE LT GRN/RED WIRE MPX MR/F AIR AIF HR ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK SG-1 AMC AMH WIRE PNK WIRE PNK/BLU WIRE RADIO 2 FUSE RED WIRE ROOM TEMPERATURE SENSOR (BEHIND CENTER OF DASH) SHORT CONNECTOR (BEHIND LEFT SIDE OF DASH) STX CLK DPD SWD TELLTALE LIGHT ASSEMBLY VIO WIRE W/ NAVIGATION GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) W/O NAVIGATION WHT WIRE WHT/BLK WIRE YEL WIRE YEL/GRN WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 ILL- ILL- GND SG TEST 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SG-4 MPX+ 4 5 6 HI A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) AIR BAG SENSOR ASSEMBLY (BELOW FRONT OF CENTER CONSOLE) AIR INLET CONTROL SERVO MOTOR (BEHIND UPPER CENTER OF DASH) AIR MIX CONTROL SERVO MOTOR (BEHIND CENTER OF DASH) AIR VENT MODE CONTROL SERVO MOTOR (BEHIND LEFT CENTER OF DASH) BLK WIRE BLK/YEL WIRE BLOWER CONTROL SWITCH BLOWER MOTOR (BEHIND RIGHT SIDE OF DASH) BLOWER RESISTOR (BEHIND RIGHT SIDE OF DASH) BLU WIRE BRN WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) CONTROL PANEL DIM ILL+ ECU-B FUSE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) EVAPORATOR TEMPERATURE SENSOR (BEHIND RIGHT SIDE OF DASH) FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPARTMENT) GND B+ GRN WIRE GRN/YEL WIRE GRY WIRE HEATER FUSE HEATER RELAY (RIGHT OF INSTRUMENT PANEL J/B) HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IA (AT LEFT KICK PANEL) IB (AT RIGHT DASH BRACE) IC (AT RIGHT KICK PANEL) ILL+ ILL+ IG INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR 5 (LEFT SIDE OF DASH, BEHIND INSTRUMENT CLUSTER) LT BLU WIRE LT GRN WIRE LT GRN/RED WIRE MPX MR/F AIR AIF HR ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK SG-1 AMC AMH WIRE PNK/BLU WIRE RADIO 2 FUSE RED WIRE SHORT CONNECTOR (BEHIND LEFT SIDE OF DASH) STX CLK DPD SWD TE TPO AOD AOF SS-4 TP TELLTALE LIGHT ASSEMBLY VIO WIRE W/ NAVIGATION GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) W/O NAVIGATION WHT WIRE WHT/BLK WIRE YEL WIRE YEL/GRN WIRE

1 2 3 5 GND CANL CANH IG 1 3 9 10 2 IG BATT CANL CANH ESS ABS IND. BB (AT RIGHT CENTER PILLAR) BF (AT RIGHT CORNER OF VEHICLE) BLK WIRE BLK/RED WIRE BLU WIRE BLU/YEL WIRE BRAKE IND BRAKE WARNING SWITCH (ON MASTER CYLINDER ASSEMBLY) BRN WIRE BRN/RED WIRE BRN/WHT WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM DOME FUSE ECU-B FUSE ECU-IG FUSE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) GRN WIRE GRN/YEL WIRE GRY WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START IB (AT RIGHT DASH BRACE) IC (AT RIGHT KICK PANEL) IGN FUSE IND INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 19 (AT REAR OF VEHICLE) JUNCTION CONNECTOR 16 (RIGHT KICK PANEL) JUNCTION CONNECTOR 17 (BEHIND LEFT SIDE OF DASH) JUNCTION CONNECTOR 6 (LEFT SIDE OF DASH, BEHIND INSTRUMENT CLUSTER) LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE SLIP IND SPEEDOMETER STEERING SENSOR STOP FUSE STOP- LIGHT SWITCH (ABOVE BRAKE PEDAL) TIRE AIR PRESSURE IND TRAC OFF VIO WIRE VSC IND VSC WARNING BUZZER WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YAW RATE SENSOR (ON REAR OF VEHICLE) YEL WIRE

+BM SPD 2.4L 3.3L 3.3L ACCEL POSITION SENSOR (ABOVE ACCELERATOR PEDAL) BATT MREL NEO ENG+ TRC+ ENG- TRC- BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE COMBINATION METER COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH CRUISE IND DATA LINK CONNECTOR (DLC) 3 (UNDER LEFT DOME FUSE EC (3.3L) (2.4L) EF (REAR OF LEFT (AT LEFT SIDE OF VALVE COVER) CYLINDER BLOCK) ECU-B FUSE ED EE (3.3L) (2.4L) (AT INTAKE SIDE OF (ON TOP CYLINDER BLOCK) OF ENGINE) EFI 1 FUSE EFI RELAY 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 COMPT) ETCS FUSE GRN WIRE GRN/BLK WIRE GRY WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START IB (AT RIGHT DASH BRACE) IGN FUSE INSTRUMENT PANEL J/B (BEHIND LEFT SIDE FUSE OF DASH) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 16 (RIGHT KICK PANEL) J/C 2 (BEHIND LEFT HEADLIGHT) J/C 6 (LEFT SIDE OF DASH, BEHIND INSTRUMENT CLUSTER) J/C 7 (BEHIND RIGHT SIDE OF DASH) LCD LT GRN WIRE M- M+ NCA WIRE NEO ENG+ TRC+ ENG- TRC- ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK 9 1 2 3 8 17 24 25 30 31 27 29 23 26 28 22 20 IGSW +B WIRE PNK WIRE PNK/BLU WIRE RED WIRE RED/WHT WIRE SIDE OF DASH) SKID CONTROL ECU WITH ACTUATOR (RIGHT FRONT OF ENGINE COMPARTMENT) SPEEDOMETER STOP FUSE STOP- LIGHT SWITCH (ABOVE BRAKE PEDAL) TRANSMISSION) A/T INDICATOR SWITCH VCPA EPA VPA VCPA EPA VPA TC VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BRN WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) DEICER RELAY FR DEF FUSE FRONT IG ILL WIPER DEICER, MIRROR HEATER SWITCH (A/C CONTROL ASSEMBLY) FRONT WIPER DEICER (ON LEFT REAR OF ENGINE COMPT) FUSE GRN WIRE GRY WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START IA (AT LEFT KICK PANEL) IB (AT RIGHT DASH BRACE) IC (AT RIGHT KICK PANEL) ILL FDEF INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) LEFT MIRROR HEATER LEFT REMOTE CONTROL MIRROR PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK WIRE R/B 1 (LEFT OF INSTRUMENT PANEL J/B) RIGHT RIGHT MIRROR HEATER REMOTE CONTROL MIRROR VIO WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLK/RED WIRE BLU WIRE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) FUSIBLE LINK BLOCK (ON LEFT SIDE OF ENGINE COMPT) GRN WIRE GRY/BLU WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 14 (ON LEFT REAR OF VEHICLE) J/C 2 (BEHIND LEFT HEADLIGHT) J/C 5 (LEFT SIDE OF DASH, BEHIND INSTRUMENT CLUSTER) LT BLU WIRE NOISE FILTER (REAR WINDOW DEFOGGER) (ON LEFT REAR OF VEHICLE) PNK WIRE REAR DEFOG RELAY REAR WINDOW DEFOGGER REAR WINDOW DEFOGGER SWITCH (A/C CONTROL ASSEMBLY) RDFG RR DEF FUSE WHT/BLK WIRE YEL WIRE

17 18 PNK WIRE BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) COMPUTER DATA LINES SYSTEM COUNTER GEAR SPEED SENSOR (LEFT SIDE OF ENGINE COMPT) DSL ECU-B FUSE EFI 2 FUSE EKNK ENGINE CONTROL MODULE (ECM) (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B (ON LEFT SIDE OF ENGINE COMPT) GRN WIRE GRN/YEL WIRE GRY WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON, START IGN FUSE INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 6 (LEFT SIDE OF DASH) KNOCK SENSOR (RIGHT SIDE OF ENGINE) LT GRN WIRE NCA WIRE NT- ORG/ WIRE P/N PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK 3 4 5 WIRE PNK PNK 4 5 WIRE PNK WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE SLT- STOP FUSE STOPLIGHT SWITCH (ABOVE BRAKE PEDAL) TURBINE SPEED SENSOR (ON SIDE OF TRANS- MISSION) WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE

A/F FUSE BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) COMPUTER DATA LINES SYSTEM COUNTER GEAR SPEED SENSOR (LEFT SIDE OF ENGINE COMPT) DSL ECU-B FUSE EFI 2 FUSE EKNK ENGINE CONTROL MODULE (ECM) (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B (ON LEFT SIDE OF ENGINE COMPT) GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON, START IGN FUSE INJ 6 INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 3 (RIGHT SIDE OF ENGINE COMPT) KNOCK SENSOR 1 (RIGHT CENTER OF ENGINE) KNOCK SENSOR 2 (LEFT CENTER OF ENGINE) LT GRN WIRE NCA WIRE NT- ORG/ WIRE P/N PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK PNK WIRE PNK WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE SLT- STOP FUSE STOPLIGHT SWITCH (ABOVE BRAKE PEDAL) TURBINE SPEED SENSOR (ON SIDE OF TRANS- MISSION) WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE