Toyota Highlander I facelift (2003-2007) a/c control assembly (behind center of dash) Wiring diagrams

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

A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) AIR BAG SENSOR ASSEMBLY (BELOW FRONT OF CENTER CONSOLE) BRN WIRE CENTER J/B (BEHIND UPPER CENTER OF DASH) COMBINATION METER DATA LINK CONNECTOR (DLC) 3 (UNDER LEFT SIDE OF DASH) ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN WIRE GRY WIRE INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 16 (RIGHT KICK PANEL) LT BLU WIRE MPX OPTION CONNECTOR 1 (BEHIND LEFT KICK PANEL) ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK WIRE POWER WINDOW MASTER SWITCH W/ ECU (IN DRIVER'S DOOR) RED WIRE SHORT CONNECTOR SIL SLIDING ROOF CONTROL ECU (W/ MOON ROOF) (ON FRONT OF SLIDING ROOF) THEFT DETERRENT ECU (BEHIND RIGHT SIDE OF DASH) VIO (OR GRN) WIRE VIO WIRE W/ ANTI- THEFT SYSTEM W/ NAVIGATION W/O ANTI- THEFT SYSTEM W/O NAVIGATION WHT WIRE YEL WIRE

8 4 9 5 FSR+ FSR- BSW BGND A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) AIR BAG SENSOR ASSEMBLY (BELOW FRONT OF CENTER CONSOLE) BLK WIRE BLU WIRE BODY ECU (BEHIND RIGHT SIDE OF DASH) BRN WIRE BUCKLE SWITCH (FRONT PASSENGER'S SIDE) (IN PASSENGER'S SEAT BELT BUCKLE) BUZZER CENTER J/B (BEHIND UPPER CENTER OF DASH) COMBINATION METER DCTY DOME FUSE DOOR IND DRIVER'S SEAT BELT IND ECU-B FUSE ENGINE CONTROL MODULE (BEHIND RIGHT SIDE OF DASH) ENGINE ROOM J/B (ON LEFT SIDE OF ENGINE COMPT) FSR+ FSR- FUSE GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN WIRE GRY WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IB (AT RIGHT DASH BRACE) IC (AT RIGHT KICK PANEL) INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C 6 (LEFT SIDE OF DASH, BEHIND INSTRUMENT CLUSTER) LBE+ LBE- LEFT BUCKLE SWITCH (ON DRIVER'S SEAT) LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LT BLU WIRE LT GRN WIRE MPX OCCUPANT CLASSIFICATION ECU (BELOW RIGHT FRONT SEAT) ORG/ WIRE PASSENGER SEAT BELT WARNING PASSENGER SIDE J/B (BEHIND RIGHT SIDE OF DASH) PNK WIRE POWER WINDOW MASTER SWITCH WITH ECU (IN DRIVER'S DOOR) RADIO 2 FUSE RED WIRE RIGHT FRONT OCCUPANT CLASSIFICATION SENSOR (IN RIGHT FRONT SEAT) SHORT CONNECTOR (BEHIND LEFT SIDE OF DASH) UNLOCK WARNING SWITCH (IN STEERING COLUMN) VIO WIRE W/ CURTAIN SHIELD AIR BAG W/O CURTAIN SHIELD AIR BAG W/ NAVIGATION W/O NAVIGATION WHT WIRE YEL WIRE