GROUND DISTRIBUTION – Toyota Tundra 2012 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 4) for Toyota Tundra 2012

List of elements for Ground Distribution Wiring Diagram (1 of 4) for Toyota Tundra 2012:

90

• (5.7l flex fuel) back p/w 3 relay (except 5.7l flex fuel) back p/w 1 relay
• (if equipped)
• (if equipped) power window regulator
• (left side of engine compt) engine room j/b
• (left side of engine compt) engine room r/b
• 2wd & except 4.0l
• 4.0l & 4.6l
• 4wd control ecu
• 5.7l
• 5.7l & 5.7l flex fuel
• 5.7l flex
• 5.7l flex fuel
• A/c pressure switch
• A/f relay
• A1 (left front of engine compt)
• A2 (left side of engine compt)
• A24
• A26
• A3 (right side of engine compt)
• A4 (right side of engine compt)
• Back p/w 2 relay
• Blower motor
• Brake fluid level warning switch
• Cargo light switch
• Center air bag ecu
• Clearance sonar ecu
• D16
• D28
• Defog relay
• Driver side j/b (left side of dash)
• Efi relay
• Engine control module
• Engine hood courtesy switch
• Except 4.0l
• Except 4.0l w/ floor shift
• Except 5.7l
• Except towing package
• F/pmp relay
• Flex fuel
• Front wiper deicer
• Fuel pump control ecu
• Fuel tank solenoid valve assembly
• Glove box illumination light
• Headlight dimmer switch assembly
• If equipped
• Ig2 relay
• J12
• J3 (right kick panel)
• J4 (w/ seat position memory)
• J46
• Junction connector a36 (right side of dash)
• Junction connector a44 (left front of engine compt)
• Junction connector j77 (center of dash)
• Left fog light
• Left front parking/ turn signal light
• Left front side marker light
• Left high headlight
• Left license plate light
• Left low headlight
• Left rear combination light
• Noise filter
• Power steering ecu assembly
• R1 (double cab: right rear of vehicle) (regular cab: tailgate)
• Ra2
• Ra4
• Right fog light
• Right front parking/ turn signal light
• Right front side marker light
• Right high headlight
• Right license plate light
• Right low headlight
• Right rear combination light
• Rv1
• Shift lock control ecu
• Skid control ecu w/ actuator
• St relay
• Sub batt relay
• Switch (for back window)
• To curtain air bag cutoff switch (diagram 3 of 4)
• To ground j2 (diagram 2 of 4)
• Tow/haul pattern select switch
• Towing package
• Trailer socket
• Transmission control switch
• W/ column shift
• W/ floor shift
• Washer fluid level sensor
• Windshield wiper motor
• Windshield wiper switch
• Wireless door lock buzzer

Ground Distribution Wiring Diagram (2 of 4) for Toyota Tundra 2012

List of elements for Ground Distribution Wiring Diagram (2 of 4) for Toyota Tundra 2012:

87

• (115 v) inverter relay
• (115v) voltage inverter
• (12 v) power outlet relay
• (column shift: left side of dash) (floor shift: left kick panel) j1
• (except regular cab) left vanity light
• (except regular cab) right vanity light
• (except regular cab) room lamp
• (w/ auto up) left front power window regulator motor
• (w/ auto up) right front power window switch
• (w/ climate control seat) left front seat heater switch
• (w/ climate control seat) left seat back climate control blower
• (w/ climate control seat) left seat cushion climate control blower
• (w/ climate control seat) right front seat heater switch
• (w/ column shift) backup light relay
• (w/ column shift) transmission control switch
• (w/ floor shift) key interlock solenoid
• (w/ rear seat entertainment) television display
• (w/ seat position memory)
• (w/ seat position memory) left front power seat control ecu & switch
• (w/ towing package) backup light relay
• (w/o climate control seat)
• (w/o climate control seat) left seat heater switch
• (w/o seat position memory) left front power seat switch
• 4wd control switch
• Acc relay
• Accessory meter assembly
• Cargo light & high mounted stop light
• Center air bag ecu
• Combination meter
• D30
• D62
• Dlc 3
• Drive monitor switch
• Driver side j/b (left side of dash)
• Except regular cab
• Flasher relay
• From ground j3 (diagram 1 of 4)
• Glass breakage sensor ecu
• Hazard warning signal switch
• Ig1 1 relay
• Ig1 2 relay
• Ig1 3 relay
• Inner mirror
• J2 (center of dash)
• J46
• Jl1
• Junction connector j78 (left side of dash)
• Jw1
• Left front door lock motor
• Left front power seat switch (lumbar support control)
• Left front power seat switch (seat cushion control)
• Left front seat heater
• Left outer rear view mirror
• Left rear door lock motor
• Main body ecu
• Mj1
• Multiplex tilt & telescopic ecu
• Nj1
• Op1
• Outer mirror control ecu
• Outer mirror switch
• P/w relay
• P1 (left "b" pillar)
• P10
• P2 (regular cab: left "b" pillar)
• Power window regulator master switch
• Pz1
• Rear window defogger
• Regular cab
• Right front door lock motor
• Right front door lock switch
• Right front power window regulator motor
• Right outer rear view mirror
• Right seat heater switch
• Roof console box assembly
• Room lamp switch
• Sliding roof control ecu
• Steering angle sensor
• Tire pressure warning ecu
• Tire pressure warning reset switch
• Towing brake controller
• Unlock warning switch
• Vsc off switch
• W/ auto up
• W/ seat position memory
• W/o seat position memory
• Zu1

Ground Distribution Wiring Diagram (3 of 4) for Toyota Tundra 2012

List of elements for Ground Distribution Wiring Diagram (3 of 4) for Toyota Tundra 2012:

47

• (12v) (w/ floor shift & except regular cab) power outlet socket 2
• (12v) power outlet socket 1
• (12v) power outlet socket 3
• (12v) power outlet socket 4
• (if equipped) curtain air bag cutoff switch
• (if equipped) navigation receiver assembly
• (w/o navigation) radio receiver assembly
• A/c amplifier
• Air pump
• Column shift
• D10 (4.0l) (rear of engine)
• Door control receiver
• Except regular cab
• Floor shift
• From junction connector j77 (diagram 1 of 4)
• Integration control & panel assembly
• J19
• Jt1
• Junction connector y14 (front passenger's seat)
• K1 (column shift: center of dash)
• K17
• K18
• K2 (under front passenger's seat)
• K27
• K30
• Occupant detection ecu
• Oq1
• Q1 (right "b" pillar)
• Q11
• Q2 (double cab: right "c" pillar) (regular cab: right "b" pillar)
• Qy1
• Qy2
• Regular cab
• Right front power seat switch
• Right front power seat switch (lumbar support control)
• Right front seat heater
• Right rear door lock motor
• Right seat back climate control blower
• Right seat cushion climate control blower
• Stereo component amplifier
• Stereo component tuner assembly
• Tj1
• Transponder key ecu
• W/ climate control seat
• W/ power seat
• W/o climate control seat
• W/o power seat

Ground Distribution Wiring Diagram (4 of 4) for Toyota Tundra 2012

List of elements for Ground Distribution Wiring Diagram (4 of 4) for Toyota Tundra 2012:

65

• (4.6l) air pump (bank 1)
• (4.6l) air pump (bank 2)
• (right rear of engine compt)
• 4.0l
• 4.6l
• 5.0l & 5.7l flex fuel
• 5.7l & 5.7l flex fuel
• A45
• Add actuator
• Air fuel ratio sensor (bank 1 sensor 1) shield
• Air fuel ratio sensor (bank 2 sensor 1) shield
• Air injection control driver
• Air injection control driver (bank 1)
• Air injection control driver (bank 2)
• Air pump (bank 1)
• Air pump (bank 2)
• Air switching valve (bank 1)
• Air switching valve (bank 2)
• Canister pump module
• Crank- shaft position sensor shield
• Cruise control main switch
• D1 (except 4.0l) (rear of engine compt)
• D2 (except 4.0l) (rear of engine compt)
• D3 (except 4.0l) (rear of engine compt)
• D50
• D54
• D67
• D70
• D73
• D74
• D8 (4.0l) (rear of engine compt)
• D87
• D9 (4.0l) (rear of engine compt)
• Da1
• Dg1
• Dlc 3
• Da2
• Engine control module
• Except 4.0l
• Heated oxygen sensor (bank 1 sensor 2) shield
• Heated oxygen sensor (bank 2 sensor 2) shield
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Ignition coil 7
• Ignition coil 8
• J45
• J79
• Junction connector a45 & d73 (right rear of engine compt)
• Junction connector d71
• Junction connector d71 (right rear of engine compt)
• Junction connector j79 & j80 (left side of dash)
• Knock sensor (bank 1 sensor 1) shield
• Knock sensor (bank 1 sensor 2) shield
• Knock sensor (bank 1) shield
• Knock sensor (bank 2 sensor 1) shield
• Knock sensor (bank 2 sensor 2) shield
• Knock sensor (bank 2) shield
• Nca
• Ra1
• Spiral cable (left side of dash)
• Transfer shift actuator