GROUND DISTRIBUTION – Lexus LS 430 2003 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 5) for Lexus LS 430 2003

List of elements for Ground Distribution Wiring Diagram (1 of 5) for Lexus LS 430 2003:

• (on left front of engine compartment, behind headlight) engine room 1 r/b
• (on left rear of engine compartment) engine room 3 r/b
• (on right rear of engine compartment) fusible link block
• Abs & & trac & vsc actuator
• Abs motor relay
• Blower motor
• Brake fluid level warning switch
• Cooling fan ecu
• E1 (engine harn, left front of engine compt, near protective case)
• E4 (engine harn, behind right headlight)
• E5 (engine harn, right side of engine compt)
• E6 (engine harn, behind left headlight)
• Ea (right radiator side support)
• Eb (under fusible link block)
• Ec (left radiator side support)
• Ed (left firewall, top side)
• Efi main relay
• Engine control module
• Engine hood courtesy switch
• Exhaust gas sensor
• Fan relay
• Front height control valve
• Front wiper motor
• Gnd1
• Gnd2
• Gnd3
• Gnd4
• Headlight cleaner control relay
• Headlight cleaner motor
• Height control compressor
• Height control exhaust valve
• Ig1 relay
• Ig2 relay
• J/c 3 (near engine control module in protective case)
• J/c 7 (below engine room 1 j/b & engine room 1 r/b)
• Left front fog light
• Left front parking light
• Left front side marker light
• Left front suspension control actuator
• Left front turn signal light
• Left headlight (high beam)
• Left headlight control ecu
• Right front fog light
• Right front parking light
• Right front side marker light
• Right front suspension control actuator
• Right front turn signal light
• Right headlight (high beam)
• Right headlight control ecu
• S10
• S13
• Skid control ecu
• Washer level sensor
• Washer motor

Ground Distribution Wiring Diagram (2 of 5) for Lexus LS 430 2003

List of elements for Ground Distribution Wiring Diagram (2 of 5) for Lexus LS 430 2003:

• (dash harn, behind top right of dash) i6
• (on left front of engine compt, behind headlight) engine room 2 r/b
• A/c magnetic clutch & lock sensor
• A24
• Airbag sensor assembly
• C12
• C13
• Combination meter
• Combination switch
• D-acc relay
• D-ig1 relay
• Data link connector 3
• Defog relay
• Distance control ecu
• Driver side j/b (at left kick panel)
• Driver side j/b ecu
• E12
• E12 (engine harn, top rear of engine)
• E13
• E13 (engine harn, top left side of engine)
• E19
• E20
• Ee (side of right cylinder head)
• Ef (side of left cylinder head)
• Engine control module
• Engine oil level sensor
• Eo1
• Eo2
• Eo3
• Front controller
• Fuel lid opener switch
• Gateway ecu
• Gnd
• Heated oxygen sensor (bank 1 sensor 1)
• Heated oxygen sensor (bank 1 sensor 2)
• Heated oxygen sensor (bank 2 sensor 1)
• Heated oxygen sensor (bank 2 sensor 2)
• Ig (left side of dash)
• Ignition coil & ignitor 1
• Ignition coil & ignitor 2
• Ignition coil & ignitor 3
• Ignition coil & ignitor 4
• Ignition coil & ignitor 5
• Ignition coil & ignitor 6
• Ignition coil & ignitor 7
• Ignition coil & ignitor 8
• Ih (right side of shift lever)
• Ij (right dash brace)
• J/c 3, j/c 4 (near engine control module in protective case)
• J/c 5, j/c 6 (near engine control module in protective case)
• J/c 8 (behind left end of dash)
• Laser radar sensor
• Luggage compartment door opener switch
• Me01
• Multi- display
• Outer mirror switch
• Park/ neutral position switch
• Power tilt & power telescopic ecu
• Radio & player
• Rheostat
• Sgnd
• Sln-
• Steering sensor
• T15
• Telephone transceiver & speaker relay
• Theft deterrent ecu
• Transponder key computer
• Un-
• Unlock warning switch

Ground Distribution Wiring Diagram (3 of 5) for Lexus LS 430 2003

List of elements for Ground Distribution Wiring Diagram (3 of 5) for Lexus LS 430 2003:

• (on right rear of engine compt) fusible link block
• A/c control assembly
• A11
• A24
• A35
• Absorber control switch
• Air sus relay
• Airbag sensor assembly
• B w/o navigation
• B1 (roof harn, right front of roof)
• C12
• C15
• Central cluster integration panel
• Clock
• Combination meter
• Console box illumination
• Door lock control receiver (inner mirror)
• E14
• Electronically controlled transmission pattern select switch
• F15
• Front cigarette lighter
• Glove box light 1
• Glove box light 2
• Gnd
• Gnd3
• Hazard switch
• Headlight beam level control ecu
• Height control switch
• I4 (dash harn, behind center of dash)
• I6 (dash harn, behind top right of dash)
• Ii (right side of shift lever)
• Ik (right dash side panel)
• Left rear interior light
• Left vanity light
• Moon roof control ecu
• Overhead j/b
• P-acc relay
• P-ig1 relay
• Passenger side j/b (at right kick panel)
• Passenger side j/b ecu
• Power outlet
• Right front buckle switch
• Right rear interior light
• Right vanity light
• Shift lock control ecu
• Short connector (height control)
• T15
• Telephone transceiver & speaker relay
• Traction control switch, left seat heater switch, right seat heater switch, left climate control seat switch, right climate control seat switch, headlight cleaner switch, rear sunshade switch, rear seat reset switch
• W/ navigation a

Ground Distribution Wiring Diagram (4 of 5) for Lexus LS 430 2003

List of elements for Ground Distribution Wiring Diagram (4 of 5) for Lexus LS 430 2003:

• (seat harn, under driver's seat) b5
• A35
• Audio & rear a/c control switch
• B6 (seat harn, under driver's seat)
• B8 (seat harn, in left rear seat back)
• Bp (left rear passenger seat back)
• Clearance sonar ecu
• Climate control seat ecu (driver's seat)
• D25
• D27
• D28
• Door lock switch (luggage)
• Driver door ecu
• Driver seat ecu
• Fuel lid opener motor
• Fuel pump
• Gnd
• High mounted stop light
• J/c 21 (forward of left rear fenderwell)
• J/c 23 (rearward of left rear fenderwell)
• J/c 24, j/c 25 (on left rear of luggage compt)
• J/c 31 (behind left rear seat back)
• L14
• Left front buckle switch
• Left front seat heater
• Left rear buckle switch
• Left rear combin- ation light
• Left rear door ecu
• Left rear head rest limit switch
• Left rear seat ecu
• Left rear seat heater
• Left rear suspension control actuator
• Left vibration seat ecu
• Luggage compartment door closer motor
• Luggage compartment door key unlock switch
• Luggage room j/b (on left side of luggage compt)
• Luggage room j/b ecu
• Noise filter
• Power seat control switch (driver's seat cushion)
• Power seat control switch (driver's seat lumbar support)
• Power seat motor & position sensor (rear passenger's left seat head rest top & bottom control)
• Power seat position sensor (driver's seat cushion control)
• Power seat position sensor (driver's seat front vertical control)
• Power seat position sensor (driver's seat head rest control)
• Power seat position sensor (driver's seat reclining control)
• Power seat position sensor (driver's seat seat lifter control)
• Power seat position sensor (driver's seat slide control)
• Power seat position sensor (rear passenger's left seat slide control)
• R13
• Rear a/c unit
• Rear height control valve
• Rear seat control switch
• Rear sunshade control relay
• Right rear combin- ation light
• Sgnd
• W/ rear power seat

Ground Distribution Wiring Diagram (5 of 5) for Lexus LS 430 2003

List of elements for Ground Distribution Wiring Diagram (5 of 5) for Lexus LS 430 2003:

• A22
• A35
• Air suspension ecu
• Audio & rear a/c control switch
• B10
• B11
• B11 (seat harn, in right rear seat back)
• B3 (body harn, right front luggage compt)
• B7 (seat harn, under passenger's seat)
• Bq (right rear passenger seat back)
• Climate control seat ecu (front passenger's seat)
• F17
• Front passenger door ecu
• Gnd
• Ill-
• Ir (under front passenger's seat)
• J/c 27 (forward of right rear fenderwell)
• J/c 28, j/c 29 (rearward of right rear fenderwell)
• J/c 30 (rearward of right rear fenderwell)
• Left rear seat heater
• Navigation ecu
• Power seat control switch (front passenger's seat lumbar support)
• Power seat control switch (front passenger's seat)
• Power seat motor & position sensor (right rear passenger's seat & head rest top & bottom control)
• Power seat position sensor (right rear passenger's seat slide control)
• R14
• R23
• Rear cigarette lighter
• Rear window defogger
• Right front seat heater
• Right rear buckle switch
• Right rear door ecu
• Right rear head rest limit switch
• Right rear pad wear indicator switch (right rear abs speed sensor)
• Right rear seat ecu
• Right rear seat heater
• Right rear suspension control actuator
• Right vibration seat ecu
• S30
• Sel1
• Sel2
• Sgnd
• Stereo component amplifier
• Stereo component tuner
• T15
• Telephone transceiver & speaker relay
• W/ rear power seat
• W/o rear power seat
• W/rear power seat