GROUND DISTRIBUTION – Toyota Highlander 2003 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 4) for Toyota Highlander 2003

List of elements for Ground Distribution Wiring Diagram (1 of 4) for Toyota Highlander 2003:

• (w/ drl)
• (w/ vsc)
• (w/o drl)
• 2.4l engine
• A/c magnetic clutch & lock sensor
• A/c triple pressure switch
• A/f relay
• Abs r/b
• Brake actuator
• Brake warning switch
• Data link connector
• Drl 3 relay
• Drl 4 relay
• E1 (engine harn, right front of engine compt)
• E2 (engine harness, left front of engine compt)
• E9 (engine harn, rear of engine)
• Ee (on intake side of cylinder block)
• Ef (left side of cylinder block)
• Efi relay
• Engine control module
• Engine hood courtesy switch
• Engine room j/b
• Engine room r/b
• Engine room r/b 3
• Fan 2 relay
• Heated oxygen sensor (bank 2, sensor 1)
• Heated oxygen sensor (bank 2, sensor 2)
• I6 (dash harn, right side of dash)
• Idle air control valve
• Ignition coil & igniter
• J/c 1 (under left headlight)
• J/c 2 (under left headlight)
• J/c 3 (on right front corner of engine compt)
• J/c 4 (front of right front fender)
• J/c 7 (behind right side of dash)
• Left front fog light
• Left front parking light
• Left front turn signal & parking light
• Left headlight (low beam)
• Park/ neutral position switch
• Radiator fan motor
• Rear defog relay
• Right front fog light
• Right front parking light
• Right front turn signal & parking light
• Right headlight (low beam)
• S12
• Skid control ecu
• Skid control relay
• W/ traction control
• W/o traction control
• Washer level switch
• Water temperature switch

Ground Distribution Wiring Diagram (2 of 4) for Toyota Highlander 2003

List of elements for Ground Distribution Wiring Diagram (2 of 4) for Toyota Highlander 2003:

• (w/ seat heater)
• (w/o seat heater)
• 3.0l engine
• A/c magnetic clutch & lock sensor
• A17
• Acc relay
• Air bag sensor assembly
• B3 (body harn, center console)
• Bb (right center pillar)
• Blower control switch
• Blower motor control
• C13
• Combination switch
• D14
• Data link connector
• E6 (engine harn, front of engine)
• Ec (right side of surge tank)
• Ed (rear side of surge tank)
• Engine control module
• Front wiper deicer
• Front wiper motor
• Heated oxygen sensor (bank 1, sensor 2)
• I6 (dash harn, right side of dash)
• I8 (dash harn, right end of dash)
• Ia (left kick panel)
• Idle air control valve
• Ignition coil & igniter
• Instrument panel j/b (behind left side of dash)
• J/c 11 (on right rear of vehicle)
• J/c 7 (behind right side of dash)
• L10
• Park/ neutral position switch
• Right buckle switch
• Right rear combination light
• Right rear door lock unit
• Right rear power window switch
• Right rear side marker light
• Right seat heater
• S23
• Stereo power amplifier
• To passenger side j/b (diagram 3 of 4)
• Wireless door lock ecu

Ground Distribution Wiring Diagram (3 of 4) for Toyota Highlander 2003

List of elements for Ground Distribution Wiring Diagram (3 of 4) for Toyota Highlander 2003:

• (body harn, right rear of vehicle) b4
• (right instrument panel brace)
• (upper right kick panel)
• (w/ manual a/c)
• A/c control assembly
• A10
• B1 (body harn, left "a" pillar)
• B12
• B2 (body harn, left front door)
• Blower resistor
• Body ecu
• C11
• C13
• C14
• Center j/b (behind upper center of dash)
• Cigarette lighter
• Combination meter
• Cruise control actuator
• Cruise control ecu
• Data link connector
• Door lock control switch
• E10
• E11
• Electronically controlled transmission pattern sensor
• Engine control module
• F11
• F13
• From instrument panel j/b (diagram 2 of 4)
• Front power outlet
• Front wiper deicer & mirror heater switch
• Front/rear wiper & washer switch
• Fuel pump sender (sub)
• G10
• Garage door opener & left vanity light
• Glove box light
• H10
• H11
• Heater relay
• J10
• J11
• Key interlock solenoid
• L10
• Left remote control mirror
• Left seat heater switch
• O/d main switch
• Option connector
• Passenger side j/b (behind right side of dash)
• Personal light
• Power window master switch
• R/b 1
• Radio & player
• Remote control mirror switch
• Right front door lock unit
• Right front power window switch
• Right remote control mirror
• Right seat heater switch
• Right vanity light
• Seat heater relay
• Shift lock ecu
• Sliding roof control ecu
• Sliding roof control switch
• Spiral cable
• Steering sensor
• Theft deterrent ecu
• Theft deterrent indicator light
• Trac off switch
• Transponder key amplifier
• Turn signal flasher
• Turn signal switch
• Unlock warning switch
• W/ 6 speaker system
• W/ 8 speaker system
• Wireless door lock buzzer

Ground Distribution Wiring Diagram (4 of 4) for Toyota Highlander 2003

List of elements for Ground Distribution Wiring Diagram (4 of 4) for Toyota Highlander 2003:

• Ba (left center pillar)
• Back door key lock & unlock switch
• Back door lock unit
• Bc (left side of rear crossmember)
• Driver's seat control
• Fuel pump & sender
• High mounted stop- light
• J/c 12 (on left rear of vehicle)
• J/c 14 (left side of back door)
• J/c 15 (under driver's seat)
• Left buckle switch
• Left rear combination light
• Left rear door lock unit
• Left rear power window switch
• Left rear side marker light
• Left seat heater
• License plate light
• Lumbar support control
• R16
• Rear interior light switch
• Rear power outlet
• Rear window defogger
• Trailer converter
• Trailer hitch