Toyota Highlander I (2001-2003) heater fuse Wiring diagrams

A/C TRIPLE PRESSURE SWITCH (RIGHT FRONT OF ENGINE COMPT) BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU/RED WIRE BLU/YEL WIRE CDS FUSE CONDENSER FAN MOTOR (BEHIND RADIATOR) EG (UNDER LEFT HEADLIGHT) ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) FAN FAN 1 RELAY FAN 2 RELAY FAN 3 RELAY FUSIBLE LINK BLOCK (LEFT SIDE OF ENGINE COMPT) GRN WIRE GRN/BLK WIRE GRY WIRE HEATER FUSE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 4 (FRONT OF RIGHT FRONT FENDER) J/C 5 (BEHIND LEFT SIDE OF DASH) RADIATOR FAN MOTOR (BEHIND RADIATOR) RDI FUSE RED WIRE RED/BLU WIRE RED/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU 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 4 5 6 1 HI A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) 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/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLOWER CONTROL SWITCH BLOWER MOTOR (BEHIND RIGHT SIDE OF DASH) BLOWER RESISTOR (BEHIND RIGHT SIDE OF DASH) BLU WIRE BLU/RED WIRE BRN/WHT WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) CONTROL PANEL 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 GRY/BLU 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 (LEFT KICK PANEL) IB (RIGHT INSTRUMENT PANEL BRACE) IC (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 J/C 5 (LEFT SIDE OF DASH, BEHIND CLUSTER) LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MPX MR/F AIR AIF HR ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK SG MPX+ WIRE PNK WIRE PNK/BLU WIRE RADIO 2 FUSE RED WIRE RED/BLK WIRE SG-1 AMC AMH STX CLK DPD SWD TE TPO AOD AOF SS TP WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 ILL- ILL- GND SG 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 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/ORG WIRE BLK/RED WIRE BLOWER MOTOR (BEHIND RIGHT SIDE OF DASH) BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLW BRN/WHT WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) CONTROL PANEL 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/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU 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 (LEFT KICK PANEL) IB (RIGHT INSTRUMENT PANEL BRACE) IC (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 J/C 5 (LEFT SIDE OF DASH, BEHIND CLUSTER) LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MPX MR/F AIR AIF HR ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK SG MPX+ SG-3 TR TE TPO AOD AOF WIRE PNK WIRE PNK/BLU WIRE RADIO 2 FUSE RED WIRE RED/BLK WIRE ROOM TEMPERATURE SENSOR (BEHIND CENTER OF DASH) SG-1 AMC AMH SG-5 TAM ILL- STX CLK DPD SWD WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 ILL- ILL- GND SG TEST 4 5 6 1 HI A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) 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/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLOWER CONTROL SWITCH BLOWER MOTOR (BEHIND RIGHT SIDE OF DASH) BLOWER RESISTOR (BEHIND RIGHT SIDE OF DASH) BLU WIRE BLU/RED WIRE BRN/WHT WIRE CENTER J/B (BEHIND UPPER RIGHT SIDE OF DASH) CONTROL PANEL 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 GRY/BLU WIRE HEATER FUSE HEATER RELAY (RIGHT SIDE OF INSTRUMENT PANEL J/B) HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IA (LEFT KICK PANEL) IB (RIGHT INSTRUMENT PANEL BRACE) IC (RIGHT KICK PANEL) ILL+ ILL+ IG INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 5 (LEFT SIDE OF DASH, BEHIND CLUSTER) LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MPX MR/F AIR AIF HR ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK SG MPX+ WIRE PNK WIRE PNK/BLU WIRE RADIO 2 FUSE RED WIRE RED/BLK WIRE SG-1 AMC AMH STX CLK DPD SWD TE TPO AOD AOF SS TP WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE

2.4L 3.0L BATTERY BATTERY GROUND BLK/RED WIRE BLU WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) CHARGE WARNING LIGHT COMB- INATION METER COMPUTER DATA LINES ECU-IG FUSE ENGINE CONTROL MODULE ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) ALT-S FUSE FUSIBLE LINK BLOCK (LEFT SIDE OF ENGINE COMPARTMENT) ALT FUSE GENERATOR HEATER FUSE HOT IN ON OR START INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) MAIN FUSIBLE LINK NCA WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) RED/BLK WIRE WHT WIRE WHT/BLU WIRE YEL WIRE

A/C SYSTEM, COOLING FANS SYSTEM, DEFOGGER SYSTEM ABS SYSTEM ANTI-THEFT SYSTEM, SHIFT INTERLOCK SYSTEM BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE CRUISE CONTROL SYSTEM CRUISE CONTROL SYSTEM, EXTERIOR LIGHTS SYSTEM, TRANSMISSIONS SYSTEM, ABS SYSTEM DEFOGGER SYSTEM SEATS SYSTEM DOOR LOCKS SYSTEM, ANTI-THEFT SYSTEM, BODY COMPUTER SYSTEM, POWER WINDOWS SYSTEM ECU-IG FUSE ENGINE CONTROLS SYSTEM ENGINE ROOM R/B ENGINE ROOM R/B (ON RIGHT FRONT OF ENGINE COMPT) FROM FROM WIPER FUSE (DIAGRAM 3 OF 4) FUSE HEATER FUSE IGN FUSE FUSE IGNITION SWITCH INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) LOCK ON ORG/ WIRE PNK WIRE POWER TOPS SYSTEM RED WIRE RR WIP FUSE WASHER FUSE SRS-IG FUSE STARTER FUSE STARTER RELAY STARTING/ CHARGING SYSTEM STARTING/CHARGING SYSTEM ENGINE CONTROLS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TO RADIO 2 FUSE (DIAGRAM 4 OF 4) WHT WIRE WHT/RED WIRE WIPER FUSE WIPER/ WASHER SYSTEM

BLK WIRE BLK/RED WIRE ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPARTMENT) 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 (LEFT REAR OF VEHICLE) J/C 2 (BEHIND LEFT HEADLIGHT) J/C 5 (LEFT SIDE OF DASH, BEHIND CLUSTER) REAR DEFOG RELAY REAR WINDOW DEFOGGER REAR WINDOW DEFOGGER NOISE FILTER REAR WINDOW DEFOGGER SWITCH (PART OF A/C CONTROL ASSEMBLY) RDFG RR DEF FUSE WHT/BLK WIRE

+SR P+ P- SIL D- D+ +SL 1 2 3 4 5 6 7 8 9 10 11 12 PL- PL+ 1 2 3 4 5 6 7 8 9 10 11 12 SFR- SFR+ 4-CYL 6-CYL 5 4 DBKL PBKL AIR BAG AIR BAG SENSOR ASSEMBLY (BELOW SHIFTER CONSOLE) BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) BRN WIRE BRN/WHT WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) COMBINATION METER ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ESL SSL+ LBE+ SSL- FPS GRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE HEATER FUSE HOT IN ON OR START IGN FUSE INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 11 (ON RIGHT REAR OF VEHICLE) J/C 6 (LEFT SIDE OF DASH, BEHIND COMBINATION METER) J/C 9 (BEHIND LEFT KICK PANEL) JC-15 (UNDER DRIVER'S SEAT) LEFT BUCKLE SWITCH LEFT FRONT AIR BAG SENSOR (ON LEFT FRONT OF VEHICLE) LEFT PRETENSIONER (AT BASE OF LEFT "B" PILLAR) LEFT SIDE AIR BAG SENSOR (W/SIDE AIR BAG) (AT BASE OF LEFT "B" PILLAR) LEFT SIDE AIR BAG SQUIB (W/SIDE AIR BAG) LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK 1 2 WIRE PNK VUPR WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PR+ PR- SSR- RBE+ SSR+ ESR RED WIRE RED/GRN WIRE RIGHT BUCKLE SWITCH RIGHT FRONT AIR BAG SENSOR (ON RIGHT FRONT OF VEHICLE) RIGHT PRETENSIONER (AT BASE OF RIGHT "C" PILLAR) RIGHT SIDE AIR BAG SENSOR (W/SIDE AIR BAG) (AT BASE OF RIGHT "B" PILLAR) RIGHT SIDE AIR BAG SQUIB (W/SIDE AIR BAG) SEAT BELT WARNING OCCUPATION DETECTION SENSOR (UNDER PASSENGER'S SEAT) SFL+ SFL- VUPL SL- SOLID STATE SRS-IG FUSE TC -SR WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

18 19 (3.0L) (2.4L) A/C CONTROL ASSEMBLY BA (LEFT CENTER PILLAR) BLK WIRE BLK/RED WIRE BLU WIRE BLU/WHT WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) BRN WIRE BUZZER CENTER J/B (BEHIND UPPER CENTER OF DASH) COMBINATION METER DBKL DCTY DOME FUSE ECU-B FUSE ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B (LEFT SIDE OF ENG COMPT) FUSE GRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ACCY OR ON HOT IN ON OR START IB (RIGHT INSTRUMENT PANEL BRACE) IC (UPPER RIGHT KICK PANEL) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 11 (ON RIGHT REAR OF VEHICLE) J/C 6 (BEHIND INSTRUMENT CLUSTER) J/C 9 (BEHIND LEFT KICK PANEL) JC-15 (UNDER DRIVER'S SEAT) LEFT BUCKLE SWITCH LEFT FRONT DOOR COURTESY SWITCH MPX PASSENGER SEAT BELT WARNING IND PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PKBL POWER WINDOW MASTER SWITCH W/ ECU RADIO 2 FUSE RED WIRE RED/BLU WIRE RIGHT BUCKLE SWITCH SEAT BELT IND SEAT BELT WARNING OCCUPANT DETECTION SENSOR (UNDER PASSENGER'S SEAT) UNLOCK WARNING SWITCH VIO WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE