GROUND DISTRIBUTION – Lexus IS 300 2003 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 3) for Lexus IS 300 2003

List of elements for Ground Distribution Wiring Diagram (1 of 3) for Lexus IS 300 2003:

• (sedan)
• (wagon)
• B3 (body harness, behind left rear wheelwell)
• B4 (body harness, behind left rear wheel well)
• B5 (body harness, under left front seat)
• Back door courtesy switch and opener motor
• Back door opener relay
• Bj (base of left "b" pillar)
• Body ecu
• Center airbag sensor assembly
• Cigarette lighter
• Driver side j/b (behind lower left end of dash)
• Flash relay
• From splice b2 (diagram 2 of 3)
• Front and rear wiper and washer switch (combination switch)
• Fuel pump
• High mounted stop light
• I2 (dash harn, behind left side of dash)
• Junction connector j/c 11 (in left front door)
• Junction connector j/c 15 (on left side of luggage compartment, behind left fenderwell)
• L10
• Left buckle switch
• Left front door key lock & unlock switch & door lock detection switch
• Left license plate light
• Left rear door lock motor and door lock detection switch
• Left rear power window control switch
• Left remote control mirror
• Left stop light (left rear combination light)
• Left taillight (left rear combination light)
• Light control switch and dimmer switch (combination switch)
• Light failure sensor
• Luggage compartment door key unlock switch
• Luggage compartment door opener relay
• Noise filter (def cds)
• Noise filter (stop light)
• Power seat control switch (driver's seat)
• Power window master switch
• Rear fog light switch
• Rear side marker light
• Remote control mirror switch
• Right license plate light
• Right stop light (right rear combination light)
• Right taillight (right rear combination light)
• Seat heater (driver's seat)
• Sedan
• Sedan only
• Steering sensor
• Theft deterrent ecu
• To ground bm (diagram 2 of 3)
• To j/c 5 (diagram 2 of 3)
• Transponder key amplifier
• Turn signal switch (combination switch)
• Unlock warning switch
• W/ power seat
• W/o power seat
• Wagon
• Wagon only
• Wireless door lock control receiver

Ground Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2003

List of elements for Ground Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2003:

• A/c dual pressure switch
• A/c magnetic clutch and lock sensor
• A/c single pressure switch
• A/t
• A12
• A25
• B2 (body harness, center of headliner)
• B8 (body harness, center of liftgate)
• Back door opener switch
• Blower motor controller
• Bm (lower left side of luggage compartment)
• Bn (lower right side of luggage compartment)
• Brake fluid level warning switch
• Combination switch
• D15
• D22
• E2 (engine harness, left front of engine compartment)
• E3 (engine harness, left front of engine compartment)
• E9 (engine harness, top left side of engine)
• Ea (front side of intake manifold)
• Ec (rear of left front fender)
• Engine control module
• Engine hood courtesy switch
• Engine oil level sensor
• Engine room no. 3 r/b
• Fan no. 2 relay
• From junction connector j/c 15 (diagram 1 of 3)
• From pin g5, driver side j/b (diagram 1 of 3)
• Front window deicer
• Front wiper motor
• Headlight cleaner control relay
• 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)
• High mounted stop light
• I3 (dash harness, behind left side of dash)
• If (lower right center of dash, forward of center floor console)
• Ig (behind upper right end of dash)
• Igniter
• Inner mirror
• Junction connector j/c 1/2 (on left side of engine compartment, near engine control module)
• Junction connector j/c 3 (on left side of engine compartment, near engine control module)
• Junction connector j/c 4 (on left side of engine compartment, near engine control module)
• Junction connector j/c 5 (behind left side of dash, behind driver side j/b)
• Junction connector j/c 7 (behind upper right side of dash)
• Left front fog light
• Left front parking light
• Left front side marker light
• Left front side turn signal light
• Left front turn signal light
• Left headlight control ecu
• Left license plate light
• Left rear combination light
• Left vanity light
• M/t
• Moon roof control ecu
• Moon roof control switch
• Multi- display
• Personal light
• Radiator fan motor
• Radio and player
• Rear window defogger
• Rear wiper motor
• Remote controller (navigation)
• Right license plate light
• Right rear combination light
• Right vanity light
• Skid control ecu
• Stereo component amplifier
• To ground bj (diagram 1 of 3)
• W/ moon roof
• W/o moon roof
• Wagon only
• Wire to fcc holder (in roof, near moon roof ecu)

Ground Distribution Wiring Diagram (3 of 3) for Lexus IS 300 2003

List of elements for Ground Distribution Wiring Diagram (3 of 3) for Lexus IS 300 2003:

• (body harness, under right front seat)
• (wagon)
• A/c control assembly
• A/t
• A18
• Abs & ba & trac & vsc actuator
• Abs & ba & trac actuator
• B17
• B28
• B7 (body harness, behind left wheelwell)
• B7 (body harness, under right front seat) (sedan)
• Bk (under right front seat)
• Center air bag sensor assembly
• Combination meter
• Data link connector (dlc) 3
• Daytime running light relay (main)
• Daytime running light relay no. 3
• Daytime running light relay no. 4
• Daytime running light resistor
• Efi relay
• Electronically controlled transmission pattern select switch
• Engine room no. 1 r/b (right rear of engine compt)
• Engine room no. 2 r/b (right rear of engine compt)
• Glove box light
• Headlight beam level control ecu
• I5 (dash harn, behind right end of dash)
• Ih (behind right kick panel)
• Junction connector j/c 16 (above right rear fender- well)
• Junction connector j/c 7 (behind upper right side of dash)
• M/t
• Navigation ecu
• Passenger side j/b (behind lower right end of dash)
• Power outage (luggage)
• Power outlet
• Power outlet relay
• Power seat control switch (front passenger's seat)
• Rheostat
• Right buckle switch and seat belt warning occupant detection sensor
• Right door lock control switch
• Right front door lock motor and door lock detection switch
• Right front fog light
• Right front parking light
• Right front power window control switch
• Right front side marker light
• Right front side turn signal light
• Right front turn signal light
• Right headlight control ecu
• Right mirror heater (remote control mirror)
• Right rear door lock motor and door lock detection switch
• Right rear power window control switch
• Seat heater (front passenger's seat)
• Seat heater switch (driver's seat)
• Seat heater switch (front passenger's seat)
• Sedan
• Shift lock control ecu
• Starter relay
• Trac off switch
• Trac off switch and snow switch
• W/ power seats
• W/ vsc
• W/o power seats
• W/o vsc
• Wagon
• Water temperature switch
• Wireless door lock control receiver
• Woofer