GROUND DISTRIBUTION – Toyota Highlander Limited 2010 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram, Except Hybrid (1 of 4) for Toyota Highlander Limited 2010

List of elements for Ground Distribution Wiring Diagram, Except Hybrid (1 of 4) for Toyota Highlander Limited 2010:

• (2.7l) ecm
• (2.7l) efi main relay 2
• (3.5l) a/f relay
• (3.5l) cooler compressor assembly
• (3.5l) w/ pulley compressor assembly
• (if equipped) ptc htr 1 relay
• (if equipped) ptc htr 2 relay
• (if equipped) ptc htr 3 relay
• (if equipped) right front power seat switch
• (if equipped) right seat heater control sub assembly
• (if equipped) stereo component amplifier assembly
• (left side of engine compt) engine room j/b
• (left side of engine compt) engine room r/b
• (right side of engine compt) engine room r/b 2
• (w/ front window deicer) deicer relay
• (w/ rear a/c) blower motor control
• (w/ rear a/c) blower w/ fan (rear) motor sub assembly
• (w/ smart key system) st cut relay
• A12
• A3 (behind left front headlight)
• A4 (behind left end of dash)
• A5 (behind right front headlight)
• Air fuel ratio sensor (bank 1 sensor)
• B3 (2.7l)
• B45
• B48
• B49
• B5 (2.7l) (rear of engine)
• Brake fluid level warning switch (brake master cylinder reservoir assembly)
• Brake pedal load sensing switch
• Canister pump module
• Cooling fan ecu
• Crankshaft position sensor
• D1 (behind right kick panel)
• D16
• D61
• Dlc3
• E10
• Ecm
• Efi relay
• Engine hood courtesy switch
• Engine room r/b 2 (right side of engine compt)
• Fan main relay
• Front wiper deicer (windshield glass)
• Headlight dimmer switch assembly
• Ig2 relay
• Ignition coil assembly
• Inverter relay
• J/c a12 & n19 (under front passenger's seat)
• J/c a37
• J/c a39 (behind left side of dash)
• J/c a40
• J/c b47 (behind right side of dash)
• Knock sensor (bank 1)
• Level warning switch assembly
• Light control circuit
• N1 (in left "d" pillar)
• N15
• N19
• N2 (in right "d" pillar)
• Nca
• Occupant detection ecu
• Oxygen sensor (bank 1 sensor 2)
• Pattern select switch assembly 1
• Right fog light assembly
• Right front clearance light (right headlight assembly)
• Right front turn signal light (right headlight assembly)
• Right headlight assembly
• Right rear door w/ motor lock assembly
• Rr def relay
• Skid control ecu w/ actuator assembly
• Spiral cable sub assembly
• St relay
• Tmc made
• Tmmi made
• To ground d3 (diagram 3 of 4)
• Towing converter
• Transmission control ecu assembly
• Vsc off switch
• Wireless door lock buzzer

Ground Distribution Wiring Diagram, Except Hybrid (2 of 4) for Toyota Highlander Limited 2010

List of elements for Ground Distribution Wiring Diagram, Except Hybrid (2 of 4) for Toyota Highlander Limited 2010:

• (audio system (w/ jbl)) navigation receiver assembly & radio receiver assembly
• (audio system (w/o jbl)) radio receiver assembly
• (behind center of dash)
• (behind left end of dash)
• (if equipped) back door control switch
• (if equipped) w/ multi information display clock assembly
• (w/ cellular mobile telephone) radio receiver assembly
• (w/ navigation system) combination meter
• (w/ navigation system) stereo jack adapter assembly 1 shield
• (w/ ptc heater) quick heater assembly
• (w/ rear reading light) left map light sub assembly
• (w/ rear reading light) right map light sub assembly
• (w/ rear seat entertainment system) television display assembly
• (w/ vanity light) left visor assembly
• (w/ vanity light) right visor assembly
• (w/o multi information display) clock assembly
• (w/o rear reading light) room light assembly
• A/c amplifier assembly
• A/c control assembly
• A1 (behind right front headlight)
• A2 (behind right front headlight)
• Air fuel ratio sensor (bank 1 sensor 1) shield
• Air fuel ratio sensor (bank 2 sensor 1) shield
• B1 (3.5l) (top right side of engine)
• B2 (3.5l) (top left side of engine)
• B47
• Canister pump module
• Center air bag sensor assembly
• Combination meter
• Crank- shaft position sensor shield
• D16
• D30
• D37
• D38
• D45
• D53
• D6 (behind center of dash)
• D7 (behind center of dash)
• Dlc3
• E1 (behind left side of dash)
• E14
• E2 (behind right center of dash)
• E24
• Ecm
• Front blower w/ fan motor sub assembly
• G10
• Ignition coil assembly
• Instrument panel j/b (behind left end of dash)
• Integration control & panel assembly
• Interior illumination light assembly 2
• J/c b47 (behind right side of dash)
• J/c d53 & e24 (behind right side of dash)
• J/c e23 (behind left side of dash)
• Knock control sensor (bank 1) & knock control sensor (bank 2) shield
• Nca
• Oxygen sensor (bank 1 sensor 2) shield
• Oxygen sensor (bank 2 sensor 2) shield
• Power point socket assembly
• Power steering ecu assembly
• Red
• Roof console box assembly
• Room light assembly
• Skid control ecu w/ actuator assembly
• Spiral cable sub assembly
• Tire pressure warning ecu
• To ground d3 (diagram 3 of 4)
• W/ rear a/c

Ground Distribution Wiring Diagram, Except Hybrid (3 of 4) for Toyota Highlander Limited 2010

List of elements for Ground Distribution Wiring Diagram, Except Hybrid (3 of 4) for Toyota Highlander Limited 2010:

• (behind left end of dash) instrument panel j/b
• (if equipped) downhill assist control switch
• (if equipped) power back door opener/ closer switch (door control switch)
• (w/ automatic glare resistant ec mirror) inner rear view mirror assembly
• (w/ rear a/c) a/c control assembly 2
• (w/ seat heater) seat heater switch
• (w/ smart key system) id code box
• (w/ smart key system) left front door electrical key oscillator
• (w/ smart key system) right front door electrical key oscillator
• (w/ smart key system) steering lock actuator assembly
• (w/o smart key system & engine immobiliser system) transponder key ecu assembly
• (w/o smart key system) key inter lock solenoid
• Acc relay
• B4 (2.7l) (rear of engine)
• B48
• B49
• Center air bag sensor assembly
• Certification ecu assembly
• D18
• D20
• D21
• D3 (behind right side of dash)
• D30
• D4 (behind left kick panel)
• D40
• D53
• Dlc 3
• Door control switch assembly
• E24
• Ecm
• F10
• From ground d1 (diagram 1 of 4)
• From instrument panel j/b (diagram 2 of 4)
• Ig1 relay
• Instrument panel j/b (behind left end of dash)
• J/c d52 (behind right side of dash)
• J/c d53 & e24 (behind right side of dash)
• Left front door w/ motor lock assembly
• Left front power window regulator motor assembly
• Left outer rear view mirror assembly
• Main body ecu
• Main switch assembly
• Outer mirror switch assembly
• Power switch
• Power window regulator master switch assembly
• Pwr relay
• Rear power point socket assembly
• Right front door w/ motor lock assembly
• Right outer rear view mirror assembly
• Shift lock control ecu
• Sliding roof control ecu
• Steering lock actuator assembly
• Steering sensor
• Tail relay
• Tire pressure warning reset switch
• Transmission control switch
• Turn signal flasher assembly
• Un lock warning switch assembly
• W/ mirror heater & w/o outer mirror foot light
• W/ outer mirror foot light
• W/ smart key system
• W/o smart key system
• Wind- shield wiper switch assembly

Ground Distribution Wiring Diagram, Except Hybrid (4 of 4) for Toyota Highlander Limited 2010

List of elements for Ground Distribution Wiring Diagram, Except Hybrid (4 of 4) for Toyota Highlander Limited 2010:

• (if equipped) back door lock assembly
• (if equipped) back door motor unit
• (if equipped) glass hatch opener switch assembly
• (if equipped) left front power seat switch
• (if equipped) left lumbar support switch (left power seat switch)
• (if equipped) left seat heater control sub assembly
• (if equipped) left seat variable cushion switch
• (if equipped) power back door closer switch (door control switch assembly)
• (w/ glass hatch opener) back window lock assembly
• (w/ glass hatch opener) rear window defogger (back window glass)
• (w/ power back door & w/o smart key system) junction connector
• (w/ power back door) power slide back door warning buzzer
• (w/o glass hatch opener) rear window defogger (back window glass)
• (w/o power back door) back door lock assembly
• A6 (behind left front headlight)
• B11
• Back door opener switch assembly
• Center stop light assembly
• Door control receiver
• Fuel pump & fuel sender gauge assembly
• Glass hatch junction relay 1
• Glass hatch junction relay 2
• J/c a38
• J/c o35 & b11 (under driver's seat)
• J/c o36 (behind left side of rear bumper)
• J/c t14 (left side of back door)
• J/c t15
• Left back up light socket
• Left fog light assembly
• Left front clearance light (left headlight assembly)
• Left front turn signal light (left headlight assembly)
• Left headlight assembly
• Left rear door w/ motor lock assembly
• Left rear turn signal light socket
• Left tail & stop light socket
• License plate light assembly
• O1 (in left "b" pillar)
• O2 (behind left rear wheelwell)
• O22
• O26
• O3 (behind right side of rear bumper)
• O32
• O35
• O4 (behind left side of rear bumper)
• Power outlet socket assembly
• Rear wiper motor assembly
• Right back up light socket
• Right rear turn signal light socket
• Right tail & stop light socket
• T1 (left side of back door)
• T11
• Trailer hitch
• Voltage inverter assembly
• W/ glass hatch opener
• W/ smart key system
• W/o smart key system
• Windshield wiper motor assembly
• Yaw rate sensor assembly

Ground Distribution Wiring Diagram, Hybrid (1 of 5) for Toyota Highlander Limited 2010

List of elements for Ground Distribution Wiring Diagram, Hybrid (1 of 5) for Toyota Highlander Limited 2010:

• (if equipped) blower motor control
• (if equipped) blower w/ fan (rear) motor sub assembly
• (if equipped) right front power seat switch
• (if equipped) right seat heater control sub assembly
• (if equipped) stereo component amplifier assembly
• (left side of engine compt) engine room j/b
• (left side of engine compt) engine room r/b
• (left side of engine compt) engine room r/b 2
• (left side of engine compt) engine room r/b 3
• A/f relay
• A1 (right front engine compt)
• A12
• A2 (right front engine compt)
• A3 (left front of engine compt)
• A4 (left end of dash)
• A41
• A44
• A45
• A46
• A47
• A5 (right front engine compt)
• A53
• A6 (left front engine compt)
• A7 (right front engine compt)
• A8 (right front engine compt)
• Bk/up lp relay
• Brake actuator assembly
• Brake fluid level warning switch (brake master cylinder reservoir assembly)
• Cooling fan ecu
• Cooling fan ecu 2
• D2 (left center of dash)
• D5 (left side of dash)
• Deicer relay
• E10
• Engine hood courtesy switch
• Fan main relay 1
• Fan main relay 2
• Front blower w/ fan motor sub assembly
• Front wiper deicer (windshield glass)
• Heater water pump assembly
• I1 (top of transmission)
• I2 (top of transmission)
• Ig2 relay
• Igct relay
• Inverter relay
• Inverter water pump assembly
• J/c a12 & n19 (a12: under front passenger's seat)
• J/c a37
• J/c a38
• J/c a40
• J/c a57
• J/c a58 (left side of dash)
• Left fog light assembly
• Left front parking light (left headlight assembly)
• Left front turn signal light (left headlight assembly)
• Left headlight assembly
• Level warning switch assembly
• Light control circuit
• N1 (left "d" pillar)
• N15
• N19
• N2 (right "d" pillar)
• Nca
• Occupant detection ecu
• Oil motor pump assembly
• Oil pmp relay
• Power steering ecu assembly
• Right fog light assembly
• Right front parking light (right headlight assembly)
• Right front turn signal light (right headlight assembly)
• Right headlight assembly
• Right rear door w/ motor lock assembly
• Rr def relay
• Skid control ecu assembly
• Towing converter
• W/ converter inverter assembly shield
• W/ power seat
• Windshield wiper motor assembly
• Wireless door lock buzzer

Ground Distribution Wiring Diagram, Hybrid (2 of 5) for Toyota Highlander Limited 2010

List of elements for Ground Distribution Wiring Diagram, Hybrid (2 of 5) for Toyota Highlander Limited 2010:

• (w rear seat entertainment system) television display assembly
• (w/ navigation) navigation receiver assembly shield
• A/c amplifier assembly
• A/c amplifier assembly shield
• Accelerator pedal sensor assembly shield
• Air fuel ratio sensor (bank 1 sensor 1) shield
• Air fuel ratio sensor (bank 2 sensor 1) shield
• B1 (rear of engine)
• B2 (top front of engine)
• B48
• B56
• Battery voltage sensor shield
• Canister pump module
• Center air bag sensor assembly
• Center air bag sensor assembly shield
• Combination meter
• Combination meter shield
• Crank- shaft position sensor shield
• D1 (right kick panel)
• D16
• D30
• D37
• D38
• D53
• D63
• D64
• D65
• Dlc3
• Dlc3 shield
• E24
• G10
• Headlight dimmer switch assembly
• Heater switch assembly
• Hybrid vehicle control ecu
• Hybrid vehicle control ecu shield
• Ignition coil assembly
• Instrument panel j/b (left side of dash)
• J/c b47 (right side of dash)
• J/c b56 & d63 (right side of dash)
• J/c d53 & e24 (right side of dash)
• J/c d55 & d59 shield
• J/c d64 & d65 (right kick panel)
• Knock control sensor (bank 1) shield
• Knock control sensor (bank 2) shield
• Main body ecu shield
• Mass air flow meter shield
• Nca
• Oxygen sensor (bank 1 sensor 2) shield
• Oxygen sensor (bank 2 sensor 2) shield
• Power steering ecu assembly shield
• Red
• Skid control ecu assembly shield
• Spiral cable sub assembly
• Steering sensor shield
• Throttle body assembly shield
• Tire pressure warning ecu
• To ground d3 (diagram 3 of 5)
• Vvt sensor (bank 1 intake side) shield
• Vvt sensor (bank 2 intake side) shield
• W/ motor compressor assembly
• W/ multi information display clock assembly
• W/ rear a/c
• Yaw rate sensor assembly shield

Ground Distribution Wiring Diagram, Hybrid (3 of 5) for Toyota Highlander Limited 2010

List of elements for Ground Distribution Wiring Diagram, Hybrid (3 of 5) for Toyota Highlander Limited 2010:

• (if equipped) a/c control assembly 2
• (if equipped) power back door opener/ closer switch (door control switch)
• (if equipped) seat heater switch
• (left side of dash) instrument panel j/b
• (w/ automatic glare resistant ec mirror) inner rear view mirror assembly
• (w/ outer mirror foot light) left outer rear view mirror assembly
• (w/ outer mirror foot light) right outer rear view mirror assembly
• (w/o outer mirror foot light) left outer rear view mirror assembly
• (w/o outer mirror foot light) right outer rear view mirror assembly
• Acc relay
• Center air bag sensor assembly
• Certification ecu assembly
• D18
• D3 (right center of dash)
• D30
• D4 (left kick panel)
• D40
• D53
• Dlc 3
• Door control switch assembly
• E24
• F10
• From ground d1 (diagram 2 of 5)
• From instrument panel j/b (diagram 2 of 5)
• Fuel lid opener switch
• Id code box
• Ig 1 relay
• Instrument panel j/b (left side of dash)
• J/c d52 (right side of dash)
• J/c d53 & e24 (right side of dash)
• Left front door electrical key oscillator
• Left front door w/ motor lock assembly
• Left front power window regulator motor assembly
• Main body ecu
• Main switch assembly
• Outer mirror switch assembly
• Pattern select switch assembly
• Power switch
• Power window regulator master switch assembly
• Pwr relay
• Rear power point socket assembly
• Right front door electrical key oscillator
• Right front door w/ motor lock assembly
• Shift lock control ecu
• Sliding roof control ecu
• Steering lock actuator assembly
• Steering sensor
• Tail relay
• Turn signal flasher assembly
• Wind- shield wiper switch assembly

Ground Distribution Wiring Diagram, Hybrid (4 of 5) for Toyota Highlander Limited 2010

List of elements for Ground Distribution Wiring Diagram, Hybrid (4 of 5) for Toyota Highlander Limited 2010:

• (if equipped) left front power seat switch
• (if equipped) left lumbar support switch (left power seat switch)
• (if equipped) left seat heater control sub assembly
• (if equipped) left seat variable cushion switch
• (w/ power back door) back door motor unit shield
• B11
• Battery voltage sensor
• Center battery cooling blower assembly
• Center stop light assembly
• Certification ecu assembly shield
• Door control receiver
• Fuel lid courtesy switch
• Fuel pump & fuel sender gauge assembly
• Glass hatch junction relay 1
• Glass hatch junction relay 2
• J/c d54 shield
• J/c d54, o21, o23 & o24 shield
• J/c o35 & b11 (under driver's seat)
• J/c o36 (left side of rear bumper)
• J/c o37 (left side of rear bumper)
• J/c o38 (left "d" pillar)
• Left back up light socket
• Left battery cooling blower assembly
• Left rear door w/ motor lock assembly
• Left rear turn signal light socket
• Left tail & stop light socket
• Nca
• O1 (left "b" pillar)
• O2 (left side of rear bumper)
• O35
• Power outlet socket assembly
• Right back up light socket
• Right battery cooling blower assembly
• Right rear turn signal light socket
• Right tail & stop light socket
• Trailer hitch
• Voltage inverter assembly
• W/ glass hatch opener
• W/ power back door
• W/ power seat
• W/o power back door
• Yaw rate sensor assembly
• Z18

Ground Distribution Wiring Diagram, Hybrid (5 of 5) for Toyota Highlander Limited 2010

List of elements for Ground Distribution Wiring Diagram, Hybrid (5 of 5) for Toyota Highlander Limited 2010:

• (audio system (w/ jbl)) navigation receiver assembly & radio receiver assembly
• (audio system (w/o jbl)) radio receiver assembly
• (audio system w/ jbl & w/o navigation) radio receiver assembly
• (if equipped) back door lock assembly
• (if equipped) back door motor unit
• (if equipped) glass hatch opener switch assembly
• (if equipped) power back door closer switch (door control switch assembly)
• (if equipped) power slide back door warning buzzer
• (w/ glass hatch opener) back window lock assembly
• (w/ glass hatch opener) rear window defogger (back window glass)
• (w/ navigation system) combination meter
• (w/ navigation system) stereo jack adapter assembly 1 shield
• (w/ rear reading light) left map light sub assembly
• (w/ rear reading light) right map light sub assembly
• (w/ vanity light) left visor assembly
• (w/ vanity light) right visor assembly
• (w/o glass hatch opener) rear window defogger (back window glass)
• (w/o power back door) back door lock assembly
• (w/o rear reading light) room light assembly
• A/c control assembly
• Back door control switch
• Back door opener switch assembly
• Combination meter
• E1 (left side of dash)
• E14
• E2 (right side of center console)
• Hv battery junction block assembly
• Integration control & panel assembly
• Interior illumination light assembly 2
• J/c e23 (left side of dash)
• J/c t14 (right side of back door)
• J/c t15
• License plate light assembly
• O3 (right side of rear bumper)
• O4 (right side of of rear bumper)
• Power point socket assembly
• Rear wiper motor assembly
• Roof console box assembly
• Room light assembly
• T1 (left side of rear door)
• T11
• W/ multi information display clock assembly
• Z20