GROUND DISTRIBUTION – Lexus IS 250 2014 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 5) for Lexus IS 250 2014

List of elements for Ground Distribution Wiring Diagram (1 of 5) for Lexus IS 250 2014:

• (left side of engine compt) engine room j/b 2
• (left side of engine compt) engine room r/b 2
• (right rear of engine compt) engine room r/b 1
• (w/ vgrs system) front steering control ecu
• 2wd
• 4wd
• 4wd ecu assembly
• A19
• A33
• A41
• A60
• A76
• Ab (left rear of engine compt)
• Ac (left rear of engine compt)
• Ae (right rear of engine compt)
• Ag (right end of dash)
• Ba1
• Blower motor w/ fan sub assembly
• Brake actuator assembly
• Brake fluid level warning switch (brake master cylinder reservoir assembly)
• Brake pedal load sensing switch (brake pedal support assembly)
• Cooler compressor assembly
• D14
• Ecm
• Efi main relay 2
• F66
• Fa1
• Fan relay
• Front window deicer (windshield glass)
• Ground j/c 1
• Headlight cleaner control relay
• Headlight leveling ecu assembly
• Hood courtesy switch (hood lock assembly)
• Ig1 main relay
• J/c 2 (left side of engine compt)
• J/c 3 (right end of dash)
• Kick down switch assembly
• Left clearance light assembly
• Left front absorber control actuator
• Left headlight assembly
• Level warning switch assembly
• Mir htr relay
• Power steering ecu assembly
• Right clearance light assembly
• Right front absorber control actuator
• St relay
• Stop light switch assembly
• Strg htr relay
• Transmission control ecu assembly
• Windshield wiper motor assembly
• Wireless door lock buzzer
• Wiring harness condenser assembly 1

Ground Distribution Wiring Diagram (2 of 5) for Lexus IS 250 2014

List of elements for Ground Distribution Wiring Diagram (2 of 5) for Lexus IS 250 2014:

• (2.5l) ignition coil assembly 4
• (2.5l) ignition coil assembly 6
• (3.5l) ignition coil assembly 4
• (3.5l) ignition coil assembly 6
• (3.5l) transmission control ecu assembly
• (if equipped) left fog light assembly
• (if equipped) right fog light assembly
• 2.5l
• 3.5l
• A34
• A41
• A42
• A75
• A77
• Aa (right front of engine compt)
• Ad (right front of engine compt)
• Air fuel ratio sensor (bank 1 sensor 1) shield
• Air fuel ratio sensor 2 (bank 2 sensor 1) shield
• Aq1
• Brake actuator assembly
• Canister pump module
• Cooling fan ecu
• Crank position sensor shield
• Cruise control switch wire
• Data link connector 3
• Ecm
• Engine oil level sensor
• F74
• Fa (left rear of engine)
• Fa1
• Fb (right rear of engine compt)
• Fuel injector assembly 1 (direct injection) shield
• Fuel injector assembly 2 (direct injection) shield
• Fuel injector assembly 3 (direct injection) shield
• Fuel injector assembly 4 (direct injection) shield
• Fuel injector assembly 5 (direct injection) shield
• Fuel injector assembly 6 (direct injection) shield
• Fuel pump assembly shield
• Ignition coil assembly 1
• Ignition coil assembly 2
• Ignition coil assembly 3
• Ignition coil assembly 5
• Injector driver shield
• J/c 4 (left side of engine compt)
• Ja (right front of engine)
• K26
• Ka7
• Knock control sensor (bank 1 & 2) shield
• Left headlight assembly
• Oxygen sensor (bank 1 sensor 2) shield
• Oxygen sensor 2 (bank 2 sensor 2) shield
• Right headlight assembly
• Shield
• Spiral cable w/ sensor sub assembly (steering column)
• Steering pad switch assembly
• Transmission control switch (transmission floor shift assembly)
• Va (right front of engine)
• W/ led headlight
• Zf1
• Zf2

Ground Distribution Wiring Diagram (3 of 5) for Lexus IS 250 2014

List of elements for Ground Distribution Wiring Diagram (3 of 5) for Lexus IS 250 2014:

• (if equipped) auto high beam switch
• (if equipped) multiplex tilt & telescopic ecu
• (if equipped) rear sunshade switch assembly
• (left end of dash) instrument panel j/b
• (w/ dynamic radar cruise control) driving support ecu assembly
• (w/ dynamic radar cruise control) pre-collision system cancel switch (pre-crash system cancel switch assembly)
• A/c control assembly
• A37
• A45
• Absorber control ecu
• Acc relay
• Air bag sensor assembly
• All dr lock relay
• Bkup lp relay
• Can junction terminal 1
• Can junction terminal 2
• Certification ecu
• Clock assembly
• Combination meter assembly
• Combination switch assembly
• D dr unlock relay
• Data link connector 3
• Fuel lock relay
• Glove box light assembly
• Headlight dimmer switch assembly
• Ig1 relay 1
• Ig1 relay 2
• Ig1 relay 3
• Instrument panel j/b (left end of dash)
• K25
• K26
• K39
• K51
• K58
• K72
• Ka (left kick panel)
• Kc (right end of dash)
• Ks1
• L/d dr unlock relay
• Left visor assembly
• Luggage door opening cancel switch assembly
• Luggage door opening switch assembly
• Main body ecu
• Map light assembly
• Mk1
• Option connector
• P/outlet relay
• Power outlet socket assembly
• Radio receiver assembly
• Refreshing seat switch
• Remote operation switch
• Right visor assembly
• Shift lock control ecu (transmission floor shift assembly)
• Shift position indicator
• Sliding roof control ecu (sliding roof gear sub assembly)
• Spiral cable w/ sensor sub assembly (steering column)
• Spiral cable w/ sensor sub assembly (under k26 steering wheel)
• Spiral cable w/ sensor sub assembly (under k27 steering wheel)
• Steering lock actuator assembly
• Steering pad switch assembly
• Steering sensor
• Steering wheel heater control assembly
• Tire pressure monitor initiator driver
• Tire pressure warning reset switch (pressure warning switch 1)
• Trunk opn relay
• W/ front fog light
• W/ navigation system
• W/ network gateway ecu
• W/o navigation system
• Windshield wiper switch assembly
• Yaw rate sensor

Ground Distribution Wiring Diagram (4 of 5) for Lexus IS 250 2014

List of elements for Ground Distribution Wiring Diagram (4 of 5) for Lexus IS 250 2014:

• (if equipped) lane departure warning camera
• (if equipped) left blind spot monitor sensor
• (if equipped) multiplex tilt & telescopic ecu
• (if equipped) network gateway ecu
• (if equipped) right blind spot monitor sensor
• (if equipped) tilt steering gear w/ motor assembly
• (w/ cold area spec) quick heater assembly
• (w/ dynamic radar cruise control) millimeter wave radar sensor assembly
• (w/ intuitive parking assist system) clearance warning ecu assembly
• (w/ vgrs system) front steering control ecu
• A/c amplifier assembly
• A47
• Air bag sensor assembly
• Ba1
• Dcm (telematics transceiver)
• Door unlock switch sub assembly
• From left rear absorber control actuator (diagram 5 of 5)
• Fuel pump control ecu
• Ha (right side of engine compt)
• Hb (right front of engine)
• Id code box
• Instrument panel j/b (left end of dash)
• J/c 9 (front left side of trunk)
• K10
• K13
• K14
• K17
• K20
• K24
• K51
• K58
• K61
• K66
• K70
• Ka1
• Kb (under center console)
• Kd (center of dash)
• Ke (under center console)
• Ks2
• Left license plate light assembly
• Left rear light assembly
• Luggage compartment door lock assembly
• Luggage electrical key switch
• Multi-display assembly
• Nca
• P23
• P30
• Pc (right rear of trunk)
• Pd (right "c" pillar)
• Qb (left side of trunk)
• Radio receiver assembly
• Rear window defogger (back window glass)
• Right rear light assembly
• Stereo component amplifier assembly
• Tire pressure warning ecu & receiver (door control & tire pressure monitoring system receiver assembly)
• W/ navigation system
• W/o navigation system
• Windshield wiper switch assembly
• Xa (right rear of engine compt)
• Ea (right side of transmission)
• Eb (left side of transmission)

Ground Distribution Wiring Diagram (5 of 5) for Lexus IS 250 2014

List of elements for Ground Distribution Wiring Diagram (5 of 5) for Lexus IS 250 2014:

• (if equipped) left seat cushion climate control blower assembly
• (if equipped) left seat heater assembly (left front separate type seat back cover)
• (if equipped) rear sunshade relay (rear window shade assembly)
• (if equipped) right seat cushion climate control blower assembly
• (if equipped) right seat heater assembly (right front separate type seat back cover)
• (if equipped) theft warning siren assembly
• (w/ memory) left outer mirror control ecu assembly
• (w/ memory) left seat memory switch
• (w/ memory) right outer mirror control ecu assembly
• (w/o memory) left outer rear view mirror assembly
• (w/o memory) right outer rear view mirror assembly
• Center stop light assembly
• J/c 11 (under front passenger's seat)
• J/c 12 (under driver seat)
• J/c 6 (right front door)
• J/c 7 (left front door)
• Left front door lock w/ motor assembly
• Left front power seat switch
• Left front power window regulator motor assembly
• Left front seat inner belt assembly
• Left rear absorber control actuator
• Left rear combination light assembly
• Left rear door lock w/ motor assembly
• Left rear power window regulator motor assembly
• Left rear power window regulator switch assembly
• Multiplex network master switch assembly
• N24
• Na (rear of right front door)
• Nb (rear of left front door)
• Np1
• Nq1
• Occupant detection ecu
• Op1
• Oq1
• Pa (right "b" pillar)
• Pb (right "c" pillar)
• Pq2
• Pa1
• Pa2
• Qa (left "b" pillar)
• Qq1
• Qb1
• Right front door lock w/ motor assembly
• Right front power seat switch
• Right front power window regulator motor assembly
• Right front power window regulator switch assembly
• Right front seat inner belt assembly
• Right rear absorber control actuator
• Right rear combination light assembly
• Right rear door lock w/ motor assembly
• Right rear power window regulator motor assembly
• Right rear power window regulator switch assembly
• To j/c 9 (diagram 4 of 5)
• W/ climate control seat
• W/ climate control seat & seat heater
• W/ memory
• W/o climate control seat
• W/o memory
• W/o memory & w/ climate control seat
• A14
• B11