Toyota Highlander II (2007-2010) main body ecu (behind left side of dash) Wiring diagrams

13 14 15 16 17 18 19 20 HU 13 22 CANH CANL 2 8 CANH CANL 25 26 CANH CANL 3 2 CANH CANL ALTB TRLY HRLY EXTERIOR LIGHTS SYSTEM ANTI-THEFT, SHIFT INTERLOCK SYSTEMS BLK WIRE BLU WIRE BRN WIRE CENTER AIR BAG SENSOR (UNDER CENTER CONSOLE) COMBINATION METER DATA LINK CONNECTOR 3 (UNDER LEFT SIDE OF DASH) DIM DRL DOOR 1 FUSE DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM HEADLIGHTS SYSTEM ENGINE CONTROLS SYSTEM ENGINE ROOM R/B 2 (LEFT SIDE OF EXTERIOR LIGHTS SYSTEM DOOR LOCKS SYSTEM FUSE FUSE ENGINE COMPT) GHSW GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HORN HORNS SYSTEM HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) ECU IG 1 LCTY PWS PKB LSWL POWER WINDOWS SYSTEM LSWP FFOG LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) MIRRORS SYSTEM DOOR LOCKS SYSTEM MLRY LSWR ORG/ WIRE PBDS PNK HEAD CLTE CLTS CLTB PCTY WIRE PNK WIRE POWER STEERING ECU (BEHIND LEFT SIDE OF DASH) RCTY RED WIRE SHIFT INTERLOCK SYSTEM STEERING SENSOR (IN STEERING COLUMN) STSW TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE W/ DAYTIME RUNNING LIGHT W/O DAYTIME RUNNING LIGHT WHT WIRE WHT/BLK WIRE YAW RATE SENSOR (UNDER CENTER CONSOLE) 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 25 26 TR+ 12 11 CANL CANH 18 19 CANL CANH 3 2 CANL CANH 33 25 CANL CANH A/C AMPLIFIER ASSEMBLY (BEHIND RIGHT SIDE OF DASH) ACCD TAIL DCTY SWIL BDSU BACK DOOR MOTOR UNIT (IF EQUIPPED) (IN LEFT "D" PILLAR) BLK WIRE BRN WIRE CANL CANP CANN CANP CERTIFICATION ECU (BEHIND RIGHT SIDE OF DASH) DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM ENGINE CONTROLS SYSTEM INSTRUMENT CLUSTER SYSTEM POWER WINDOWS SYSTEM FFGO ACTD GRN WIRE GRY WIRE HAZ CANH CANL HF INDW INDS HYBRID VEHICLE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) J/C LSWD LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) NAVIGATION RECEIVER ASSEMBLY (IF EQUIPPED) NCA WIRE ORG/ WIRE PNK WIRE POWER DISTRIBUTION SYSTEM HEADLIGHTS SYSTEM DOOR LOCKS SYSTEM RED WIRE SKID CONTROL ECU (BEHIND RIGHT SIDE OF DASH) SLP SLR+ GCTY TACH SPD TIRE PRESSURE WARNING ECU (BEHIND RIGHT SIDE OF DASH) VIO WIRE W/ POWER BACK DOOR W/O POWER BACK DOOR WHT WIRE WHT/BLK WIRE YEL WIRE

"B" PILLAR) 17 21 LCTY ILE 4 25 MLRY BCTY 5 6 CANH CANL 9 20 24 25 LSWD GCTY DCTY SWIL BACK WINDOW LOCK ASSEMBLY (CENTER OF BACK DOOR) BLK WIRE BLU WIRE COMPUTER DATA LINES SYSTEM DIODE (LEFT COURTESY) DIODE (RIGHT COURTESY) DOME FUSE DOOR 1 FUSE ECU- IG 1 FUSE ECU-ACC FUSE ENGINE ROOM R/B 2 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 3 (LEFT SIDE OF ENGINE COMPT) G/H FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INSTRUMENT PANEL J/B INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) LEFT FRONT DOOR COURTESY LIGHT ASSEMBLY LEFT FRONT DOOR COURTESY LIGHT SWITCH (IN LEFT "B" PILLAR) LEFT FRONT DOOR LOCK MOTOR (IN DRIVER'S DOOR) LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) MIR LP RELAY ORG/ WIRE PCTY PNK WIRE POWER SWITCH RCTY RED WIRE RIGHT FRONT DOOR COURTESY LIGHT ASSEMBLY RIGHT FRONT DOOR COURTESY LIGHT SWITCH (IN RIGHT RIGHT REAR DOOR COURTESY LIGHT SWITCH (IN RIGHT "C" PILLAR) W/ OUTER MIRROR FOOT LIGHT WHT WIRE WHT/BLK WIRE

+B (DOME) 17 10 LCTY 20 1 LSWL ACT+ 20 5 9 1 24 10 PNK GCTY ACTD LSWD TR+ DCTY WIRE 6 5 CANL CANH BACK DOOR LOCK ASSEMBLY (LOWER CENTER OF BACK DOOR) BCTY MLRY LSWP LSWR RCTY PCTY BLK WIRE BLK/ WHT WIRE BLU WIRE BRN WIRE BUZZER CAN I/F COMBINATION METER COMPUTER DATA LINES SYSTEM COURTESY DRIVE IC ECU- IG 1 FUSE ECU-ACC FUSE GAUGE 2 FUSE GHSW GLASS HATCH OPENER SWITCH ASSEMBLY (IF EQUIPPED) GRN WIRE GRY WIRE HOT IN ON OR ACC HOT IN ON OR START INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) LEFT FRONT DOOR COURTESY LIGHT SWITCH (IN LEFT "B" PILLAR) LEFT REAR DOOR COURTESY LIGHT SWITCH (IN LEFT "C" PILLAR) LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) MASTER WARNING IND MICRO COMPUTER ORG/ WIRE PNK WIRE POWER SUPPLY CIRCUIT READY IND RED WIRE RIGHT FRONT DOOR COURTESY LIGHT SWITCH (IN RIGHT "B" PILLAR) RIGHT REAR DOOR COURTESY LIGHT SWITCH (IN RIGHT "C" PILLAR) VIO WIRE WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE YEL WIRE

17 10 LCTY 17 16 14 15 25 PNK WIRE 20 1 LSWL ACT+ 20 5 9 1 24 10 PNK GCTY ACTD LSWD TR+ DCTY WIRE 4 8 GHSW GHSW 8 6 5 RDY CANL CANH BACK DOOR LOCK ASSEMBLY (LOWER CENTER OF BACK DOOR) BCTY MLRY LSWP LSWR RCTY PCTY BLK WIRE BLK/ WHT WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COURTESY ECU-ACC FUSE ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) GAUGE 2 FUSE GLASS HATCH OPENER SWITCH ASSEMBLY (IF EQUIPPED) GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IGN FUSE INDW INDS SWIL INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) LEFT FRONT DOOR COURTESY LIGHT SWITCH (IN LEFT "B" PILLAR) LEFT REAR DOOR COURTESY LIGHT SWITCH (IN LEFT "C" PILLAR) LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) ORG/ WIRE PNK WIRE RED WIRE RIGHT FRONT DOOR COURTESY LIGHT SWITCH (IN RIGHT "B" PILLAR) RIGHT REAR DOOR COURTESY LIGHT SWITCH (IN RIGHT "C" PILLAR) S-HORN FUSE S-HORN RELAY SECURITY HORN ASSEMBLY (IF EQUIPPED) (LEFT FRONT OF ENGINE COMPT) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

3 6 4 5 MANUAL A/C 4 6 13 23 21 24 FFGO 5 6 CANH CANL ASSEMBLY AUTO TAIL OFF DRL OFF AUTOMATIC A/C BCTY PCTY HEAD FFOG CLTE CLTS CLTB BLK WIRE BLU WIRE BRN WIRE CLTB COMPUTER DATA LINES SYSTEM DCTY DIMMER SWITCH DOOR 1 FUSE ECU- IG 1 FUSE ECU-ACC FUSE ENGINE ROOM R/B 2 (LEFT SIDE OF ENGINE COMPT) EXCEPT USA USA FOG RELAY FR FOG FUSE FUSE GRN WIRE GRY WIRE HEADLAMP DIMMER SWITCH ASSEMBLY HF TAIL HIGH HEAD LOW FLASH HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START HOT W/ TAIL RELAY ENERGIZED HRLY (W/ DRL DIM DRL) (W/O DRL) PKB INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM LCTY LEFT FOG LIGHT LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) OFF ON CLTE CLTS ORG/ WIRE PARKING BRAKE SWITCH PNK WIRE RCTY RED WIRE RIGHT FOG LIGHT ASSEMBLY TAIL FUSE WHT WIRE WHT/BLK WIRE

25 23 SWIL TAIL A/C CONTROL ILL+ ASSEMBLY 2 ACCI CILL AUTO TAIL HEAD BLK WIRE BLK/ WHT WIRE BLU WIRE CANL CANH COMPUTER DATA LINES SYSTEM DOOR 1 FUSE DRL OFF OFF ECU- IG 1 FUSE ECU-ACC FUSE ENGINE ROOM R/B 2 (LEFT SIDE OF ENGINE COMPT) DOME FUSE FUSE GRN WIRE GRY WIRE HEADLAMP DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INSTRUMENT PANEL J/B (BEHIND LEFT INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) INTEGRATION CONTROL, PANEL ASSEMBLY INTERIOR ILLUMINATION LIGHT ASSEMBLY 2 LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) ORG/ WIRE OUTER MIRROR HEATER SWITCH ASSEMBLY PANEL FUSE PNK WIRE POWER SWITCH RADIO 2 FUSE RED WIRE ROOF CONSOLE BOX ASSEMBLY SEAT HEATER SWITCH SIDE OF DASH) TAIL RELAY WHT WIRE WHT/BLK WIRE YEL WIRE

+B (DOME) 17 10 LCTY 20 1 LSWL ACT+ 20 5 9 1 24 10 PNK GCTY ACTD LSWD TR+ DCTY WIRE 6 5 CANL CANH BACK DOOR LOCK ASSEMBLY (LOWER CENTER OF BACK DOOR) BCTY MLRY LSWP LSWR RCTY PCTY BLK WIRE BLK/ WHT WIRE BLU WIRE BRN WIRE BUZZER CAN I/F COMBINATION METER COMPUTER DATA LINES SYSTEM COURTESY DRIVE IC ECU- IG 1 FUSE ECU-ACC FUSE GAUGE 2 FUSE GHSW GLASS HATCH OPENER SWITCH ASSEMBLY (IF EQUIPPED) GRN WIRE GRY WIRE HOT IN ON OR ACC HOT IN ON OR START INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) LEFT FRONT DOOR COURTESY LIGHT SWITCH (IN LEFT "B" PILLAR) LEFT REAR DOOR COURTESY LIGHT SWITCH (IN LEFT "C" PILLAR) LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) MASTER WARNING IND MICRO COMPUTER ORG/ WIRE PNK WIRE POWER SUPPLY CIRCUIT READY IND RED WIRE RIGHT FRONT DOOR COURTESY LIGHT SWITCH (IN RIGHT "B" PILLAR) RIGHT REAR DOOR COURTESY LIGHT SWITCH (IN RIGHT "C" PILLAR) VIO WIRE WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE YEL WIRE

17 10 LCTY 17 16 14 15 25 PNK WIRE 20 1 LSWL ACT+ 20 5 9 1 24 10 PNK GCTY ACTD LSWD TR+ DCTY WIRE 4 8 GHSW GHSW 8 6 5 RDY CANL CANH BACK DOOR LOCK ASSEMBLY (LOWER CENTER OF BACK DOOR) BCTY MLRY LSWP LSWR RCTY PCTY BLK WIRE BLK/ WHT WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COURTESY ECU-ACC FUSE ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) GAUGE 2 FUSE GLASS HATCH OPENER SWITCH ASSEMBLY (IF EQUIPPED) GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IGN FUSE INDW INDS SWIL INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) LEFT FRONT DOOR COURTESY LIGHT SWITCH (IN LEFT "B" PILLAR) LEFT REAR DOOR COURTESY LIGHT SWITCH (IN LEFT "C" PILLAR) LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) ORG/ WIRE PNK WIRE RED WIRE RIGHT FRONT DOOR COURTESY LIGHT SWITCH (IN RIGHT "B" PILLAR) RIGHT REAR DOOR COURTESY LIGHT SWITCH (IN RIGHT "C" PILLAR) S-HORN FUSE S-HORN RELAY SECURITY HORN ASSEMBLY (IF EQUIPPED) (LEFT FRONT OF ENGINE COMPT) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+B(DOME) OR IG 10 9 8 7 6 5 4 3 2 1 UP CLS DWN OPN 15 6 IG ALTB 2 4 5 3 6 GND OPN DOWN CLS UP 24 10 DCTY 26 25 40 CANL CANH BLK WIRE BLU WIRE BRN WIRE BZR CAN I/F CANL CANH CANN CANP COMPUTER DATA LINES SYSTEM CERTIFICATION ECU (BEHIND RIGHT SIDE OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM DATA DOOR 1 FUSE DOOR CONTROL RECEIVER (IN LEFT "D" PILLAR) DRIVE IC ECU- IG 1 FUSE ECU-ACC FUSE ENGINE COMPT) ENGINE ROOM R/B 2 (LEFT SIDE OF ENGINE COMPT) GAUGE 2 FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IG+ PNK WIRE INSTRUMENT PANEL J/B (BEHIND LEFT SIDE OF DASH) J/C KEY LOCK KEY UNLOCK LEFT FRONT DOOR COURTESY LIGHT SWITCH (IN LEFT "B" PILLAR) LEFT FRONT DOOR LOCK MOTOR (IN DRIVER'S DOOR) MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) MASTER IND MICRO COMPUTER ORG/ WIRE PNK WIRE RED WIRE ROOF CONSOLE BOX ASSEMBLY RSSI S/ROOF FUSE SLIDING ROOF CONTROL ECU (ON FRONT OF SLIDING ROOF) SUPPLY CIRCUIT POWER VIO WIRE WHT WIRE WHT/BLK WIRE WIRELESS DOOR LOCK BUZZER (LEFT SIDE OF YEL WIRE