GROUND DISTRIBUTION – Lexus IS 250 2009 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 7) for Lexus IS 250 2009

List of elements for Ground Distribution Wiring Diagram (1 of 7) for Lexus IS 250 2009:

32

• (if equipped) headlamp cleaner control relay
• (w/ adaptive front lighting) headlamp swivel ecu
• A/c compressor
• A/f relay
• A1 (left rear of engine compt)
• A2 (left rear of engine compt)
• A27
• A3 (left rear of engine compt)
• A31
• A4 (right rear of engine compt)
• A5 (right rear of engine compt)
• Blower motor
• Brake fluid level warning switch
• Brake pedal load sensing switch
• Efi 2 relay
• Efi main relay
• Engine control module
• Engine room j/b 2 (left side of engine compt)
• Engine room r/b 2 (left side of engine compt)
• Fan 2 relay
• Front controller
• Ig2 relay
• Junction connector a15
• Junction connector a20 (left kick panel)
• Junction connector a9 (left side of engine compt)
• Power steering ecu
• Skid control ecu w/ actuator
• St cut relay
• Water level warning switch
• Windshield washer motor
• Windshield wiper motor
• Wireless door lock buzzer

Ground Distribution Wiring Diagram (2 of 7) for Lexus IS 250 2009

List of elements for Ground Distribution Wiring Diagram (2 of 7) for Lexus IS 250 2009:

30

• (a/t) transmission control switch
• (w/ dynamic radar cruise control) distance control ecu
• (w/ dynamic radar cruise control) millimeter wave radar sensor
• A/c compressor
• A10
• Air fuel ratio sensor (bank 1 sensor 1) shield
• Air fuel ratio sensor (bank 2 sensor 1) shield
• Canister pump module
• Crankshaft position sensor shield
• Data link connector 3
• E1 (left rear of engine)
• E2 (right rear of engine)
• Engine control module
• Engine oil level sensor
• 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
• Inj relay shield
• J24
• Junction connector a10 & e1 (e1: left side of engine compt)
• Junction connector j70 (right side of dash)
• Knock control sensor shield
• Nca
• Spill control valve shield
• Spiral cable

Ground Distribution Wiring Diagram (3 of 7) for Lexus IS 250 2009

List of elements for Ground Distribution Wiring Diagram (3 of 7) for Lexus IS 250 2009:

36

• (front center of roof) overhead j/b
• (w/ 4wd) 4wd control ecu
• (w/ navigation) multi- display
• A10
• Acc relay
• Air bag sensor assembly center
• Body ecu
• Cigarette lighter
• Combination meter
• D11
• D17
• Defog relay
• Engine room r/b 1 (right rear of engine compt)
• Id code box
• J34
• J4 (right kick panel)
• J47
• J50
• Junction connector j71 (right side of dash)
• Junction connector j80 (right kick panel)
• K10
• Left vanity lamp switch
• Luggage compartment door opener switch
• Luggage compartment door opener switch (main)
• Noise filter
• Noise filter (ghost buster)
• Power source control ecu
• Power switch
• Pwr point relay
• Rh-ig1 relay
• Right cowl side j/b (right end of dash)
• Right vanity lamp switch
• Starter relay
• Steering lock ecu
• Tilt motor (w/ tilt & power telescopic steering)
• To ground j2 (diagram 4 of 7)

Ground Distribution Wiring Diagram (4 of 7) for Lexus IS 250 2009

List of elements for Ground Distribution Wiring Diagram (4 of 7) for Lexus IS 250 2009:

45

• (a/t) shift lock control ecu
• (if equipped) rear sunshade switch
• (if equipped) sliding roof control ecu
• (if equipped) tilt & telescopic ecu
• (w/ navigation) overhead j/b shield
• A/c amplifier
• A/t
• Air bag sensor assembly center
• Body ecu
• Cigarette lighter
• Clock assembly
• Combination meter
• Console box lamp
• D12
• Data link connector 3
• Electronically controlled transmission pattern select switch
• Etcs snow switch
• From right cowl side j/b (diagram 3 of 7)
• Gateway ecu
• Glove box lamp
• Integration control & panel assembly
• J1 (left kick panel)
• J2 (under center console)
• J26
• J34
• J47
• J58
• Junction connector j27 (left side of dash)
• Junction connector j70 (right side of dash)
• Left cowl side j/b (left end of dash)
• Lh-ig1 relay
• Lh-ig2 relay
• M/t
• Satellite switch
• Seat heater switch
• Steering lock ecu
• Steering sensor
• Stop lamp control relay
• Tire pressure warning ecu & receiver
• Traction control switch
• Turn signal flasher
• W/ navigation
• W/o navigation
• Windshield wiper switch assembly
• Yaw rate sensor

Ground Distribution Wiring Diagram (5 of 7) for Lexus IS 250 2009

List of elements for Ground Distribution Wiring Diagram (5 of 7) for Lexus IS 250 2009:

44

• (if equipped) rear sunshade relay
• (w/ memory seat) left outer mirror control ecu
• (w/ parking assist) clearance warning ecu
• Center stop lamp
• Fuel lid opener motor
• Fuel suction pump & gauge assembly
• Junction connector q35 (left rear wheelwell)
• Junction connector q7 & u1 (under driver's seat)
• Junction connector u11 (under driver's seat)
• Left front door electrical key oscillator
• Left front door lock assembly
• Left front power window regulator motor
• Left front seat back climate control blower
• Left front seat cushion climate control blower
• Left front seat inner belt
• Left front seat inner belt assembly
• Left front seat lumbar support power seat switch
• Left front seat position control ecu & switch
• Left front seat power seat switch
• Left license plate lamp
• Left outer rear view mirror
• Left rear combination lamp
• Left rear door lock assembly
• Left rear power window regulator motor
• Left rear power window switch
• Left seat heater
• Luggage compartment door lock cylinder
• Luggage door lock assembly
• Luggage electrical key switch
• M10
• M15
• Outer mirror switch
• Power window master switch
• Q1 (left "b" pillar)
• Q2 (left side of trunk)
• Q58
• Right rear combination lamp
• Seat belt control ecu
• W/ memory
• W/ memory seats
• W/ power seats
• W/o memory
• W/o memory seats
• W/o power seats

Ground Distribution Wiring Diagram (6 of 7) for Lexus IS 250 2009

List of elements for Ground Distribution Wiring Diagram (6 of 7) for Lexus IS 250 2009:

40

• (if equipped) occupant classification ecu
• (w/ climate control seat right front seat back climate control blower
• (w/ climate control seat right front seat cushion climate control blower
• (w/ memory seats) right outer mirror control ecu
• (w/ memory)
• (w/ power seat) right front seat inner belt
• (w/ power seat) right front seat lumbar support control power seat switch
• (w/o power seat) right front seat inner belt assembly
• Certification ecu
• Door control receiver
• Door lock control switch
• Junction connector p26 (right side of trunk)
• Junction connector t11 (front passenger's seat)
• Junction connector t14 (under front passenger's seat)
• L1 (w/o memory)
• L10
• L14
• P1 (right side of crossmember)
• P19
• P2 (right rear of vehicle)
• Power outlet socket
• Rear window defogger
• Right front door electrical key oscillator
• Right front door lock assembly
• Right front power window regulator motor
• Right front power window switch
• Right front seat position control ecu & switch
• Right front seat power seat switch
• Right outer rear view mirror
• Right rear door lock assembly
• Right rear power window regulator motor
• Right rear power window switch
• Right seat heater
• W/ climate control seat
• W/ memory seats
• W/ occupant classification
• W/ power seats
• W/o climate control seat
• W/o memory seats
• W/o occupant classification

Ground Distribution Wiring Diagram (7 of 7) for Lexus IS 250 2009

List of elements for Ground Distribution Wiring Diagram (7 of 7) for Lexus IS 250 2009:

24

• (3.5l) smog ventilation sensor
• B1 (right front of engine compt)
• B2 (left front of engine compt)
• C1 (front of engine)
• Cooling fan motor 1
• Engine hood courtesy switch
• Fuel injectors 1, 3 & 5 shield
• Fuel injectors 2, 4 & 6 shield
• H1 (front of engine)
• I1 (front of engine)
• J3 (under center console)
• J66
• Left front fog lamp
• Left headlamp assembly
• Nca
• P27
• P3 (right side of trunk)
• Power steering motor shield
• Radio receiver assembly
• Right front fog lamp
• Right headlamp assembly
• Stereo component amplifier
• Stereo jack adapter shield
• W/ hid type