GROUND DISTRIBUTION – Lexus SC 400 1999 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 4) for Lexus SC 400 1999

List of elements for Ground Distribution Wiring Diagram (1 of 4) for Lexus SC 400 1999:

• (3.0l)
• (4.0l)
• (body harness, left rear wheelwell) b18
• (dash harn, right side of dash) i17
• (engine harn, left side of eng compt) e9
• (engine harn, upper right radiator support) e2
• (engine harness, left fender apron) e8
• (engine harness, upper right radiator support) e1
• (engine harness, upper right radiator support) e2
• (w/ tcs) (w/o tcs)
• A/c dual pressure switch
• A/c single pressure switch
• A30
• A5 a7
• Abs actuator
• Abs sol relay
• Brake fluid level switch
• C12
• Combination meter
• Cruise control switch
• Data link connector 1
• Data link connector 2
• Data link connector 3
• Daytime running light relay 3
• Daytime running light relay 4
• E15
• E16
• E19
• E2 (engine harness, upper right radiator support)
• E4 (engine harness, upper left radiator support)
• E7 (engine harn, right fender apron)
• Efi main relay
• Engine hood courtesy switch
• Engine control module
• Engine oil level warning switch
• G100 (front side of left fender)
• G101 (front side of right fender)
• G131 (on intake manifold)
• Heated oxygen sensor (bank 1, sensor 1)
• Heated oxygen sensor (bank 1, sensor 2)
• Heated oxygen sensor (bank 2, sensor 1)
• Htr relay
• I20 (dash harn, right end of dash)
• I25 (dash harn, right side of dash)
• I27 (eng harn, behind right side of dash)
• Igniter
• Left front fog- light
• Left front parking light
• Left front side marker light
• Left front turn signal light
• Left low beam headlight
• Mobile phone
• Nca
• Noise filter (defogger system)
• Noise filter (ignition system)
• Power steering oil pressure switch
• Relay block 2 (on left side of engine compt, behind battery)
• Relay block 6 (on left side of engine compt, behind strut tower)
• Right front fog- light
• Right front parking light
• Right front side marker light
• Right front turn signal light
• Right low beam headlight
• T15
• Telephone transceiver & speaker relay
• Washer level switch

Ground Distribution Wiring Diagram (2 of 4) for Lexus SC 400 1999

List of elements for Ground Distribution Wiring Diagram (2 of 4) for Lexus SC 400 1999:

• (4.0l)
• (dash harn, top center of dash) i9
• (under right side of ashtray)
• (w/ memory)
• A7 r24
• Auto antenna motor & relay
• B18 (body harness, left side of passenger compt)
• B25 (body harness, left side of trunk)
• B7 s15
• C12
• C2 r5
• C7 s28
• Cd automatic changer
• Combination meter
• Cruise control switch
• Da converter
• Data link connector 1
• Data link connector 2
• Data link connector 3
• Driver's power seat control switch
• Driver's power seat ecu
• Driver's seat heater
• E15
• E16
• E26 (engine harn, right side of firewall)
• E28 (engine harn, center of firewall)
• Engine control module
• Engine oil level warning switch
• Fuel pump
• Fuel pump ecu
• G112 (left rear side of cylinder head)
• G120 (right rear side of cylinder head)
• G206
• G309 (rear of left door sill)
• G407 (center rear of trunk)
• 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)
• I17 (dash harn, right side of dash)
• Igntion coil & igniter 1
• Igntion coil & igniter 2
• Igntion coil & igniter 3
• Igntion coil & igniter 4
• Igntion coil & igniter 5
• Igntion coil & igniter 6
• Igntion coil & igniter 7
• Igntion coil & igniter 8
• Left buckle switch
• Left rear combination light
• License plate light
• Light failure sensor
• Luggage compartment key unlock switch
• Nakamichi
• Nca
• P13
• Pioneer
• Radio & player
• Right rear combination light
• Side of luggage compartment)
• Stereo power amplifier

Ground Distribution Wiring Diagram (3 of 4) for Lexus SC 400 1999

List of elements for Ground Distribution Wiring Diagram (3 of 4) for Lexus SC 400 1999:

• (behind left kick panel, on front side of junction block 1) relay block 4
• (body harness, center of windshield header) b7
• (body harness, inside left door) b3
• (body harness, left "a" pillar) b6
• (dash harn, right side of combination meter) i12
• (dash harn, right side of combination meter) i13
• (dash harn, upper right end of dash) i19
• (w/ memory)
• A/c control assembly
• A10
• A13 b5 (w/o memory)
• Air bag sensor assembly
• B6 (body harness, left "a" pillar)
• C13
• C16
• Combination meter (4.0l)
• Cooling fan ecu (4.0l)
• D10
• Dimmer switch (combination switch)
• E18
• G200 (left kick panel)
• G206 (left instrument panel brace)
• H13
• I3 (dash harn, upper left end of dash)
• I5 (dash harn, upper left end of dash)
• Ignition main relay
• Inner mirror
• Integration relay
• Junction block 1 (behind left kick panel)
• K12
• Key interlock solenoid (ignition switch)
• Key unlock warning switch (ignition switch)
• Left door key lock & unlock switch
• Left door lock/ unlock motor & door detection position switch
• Left power window master switch & door lock control switch
• Left remote control mirror
• Left vanity light
• Light control switch (combination switch)
• Moon roof control relay
• Moon roof control switch
• Moon roof limit switch
• Moon roof motor
• Personal light
• Power main relay
• Pps ecu
• Red
• Remote control mirror ecu
• Remote control mirror switch
• Right vanity light
• Roof
• Theft deterrent & door lock ecu
• Tilt & power telescopic ecu
• To g203 (diagram 4 of 4)
• To junction block 3, pin a1 (diagram 4 of 4)
• Transponder key amplifier
• Turn signal flasher
• W/ moon
• W/o moon
• Wiper & washer switch (combination switch)
• Wiper motor

Ground Distribution Wiring Diagram (4 of 4) for Lexus SC 400 1999

List of elements for Ground Distribution Wiring Diagram (4 of 4) for Lexus SC 400 1999:

• (body harn, right door sill)
• (w/ memory) a13
• 1 (or 2)
• A/c control assembly
• A10
• A20
• A22
• A24
• Abs & traction ecu
• Abs ecu
• B10 (body harn, under left front seat)
• B11 (body harn, left side of left front seat back)
• B18
• B8 (body harn, under left front seat)
• Blower motor control relay
• C25
• Cigarette lighter
• Combination meter
• D10
• D23
• Data link connector 3
• Driver's power seat control switch
• Driver's seat recline motor
• Driver's seat slide position sensor
• Driving position memory & return switch
• E19
• E20
• Electronically controlled transmission pattern select & seat heater switches
• Engine control module
• Engine control module (3.0l)
• From g206 (diagram 3 of 4)
• From junction block 1, pin e18 (diagram 3 of 4)
• Front vertical position sensor
• Fuel lid opener solenoid
• G203 (right kick panel)
• G302 (under left side of ashtray)
• G316 (rear of right door sill)
• G905 (right "c" pillar)
• Glove box light switch
• H15
• High mounted stop light
• I21 (dash harn, lower right end of dash)
• I22 (dash harn, lower right end of dash)
• I24 (dash harn, lower right side of dash)
• I8 (dash harn, upper left side of dash)
• Junction block 3 (behind center of dash)
• Junction connector j/c 2 (center of rear shelf)
• Luggage compartment door opener switch
• P14
• Passenger's power seat control switch
• Passenger's seat back heater
• Power seat ecu
• Rear vertical position sensor
• Rear window defogger
• Rheostat
• Right door key lock & unlock switch
• Right door lock control switch
• Right door lock motor, door unlock detection switch & open detection switch
• Right remote control mirror
• Shift lock ecu
• Tilt & power telescopic ecu
• Traction cut switch
• Wireless door lock control ecu