Diagram sections — 32 (62 total)
AIR CONDITIONING ANTI-LOCK BRAKES COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ELECTRONIC POWER STEERING ELECTRONIC SUSPENSION ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS MEMORY SYSTEMS PASSIVE RESTRAINTS POWER ANTENNA POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCKS STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION TRUNK, TAILGATE, FUEL DOOR WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING A/C Wiring Diagram (1 of 2) for Lexus LS 400 1994 List of elements for A/C Wiring Diagram (1 of 2) for Lexus LS 400 1994: 57 (top of engine) 1994 vftc c A/c A/c compressor sensor (left side of engine) A/c ambient temperature sensor (right front of engine compt) A/c control assembly (center of i/p) A/c evaporator temperature sensor (right side of i/p) A/c room temperature sensor (right of steering column) A/c solar sensor (right side of i/p) A11 Acc Air mix control servo motor (center of i/p) Air vent mode control servo motor (center of i/p) B/l B10 Blo Bls Blw C10 Check connector Conn "a" Conn "b" Control switch Data link connector (below left side of i/p) Def Defogger system Din Dout Engine control module (right side of i/p) F/d Face Foot Gnd Ig+ Ign Ill+ Instrument cluster system Interior lights system J/b 3 (behind center of i/p) J/c 3 (right side of i/p) Lcki Max control servo motor (center of i/p) Mfrs Mgc Mrec Pnk Psw Rdfg Red Reos Spd Tam Tamo Tele Tpb Tpi Water temperature sensor (center of i/p) A/C Wiring Diagram (2 of 2) for Lexus LS 400 1994 List of elements for A/C Wiring Diagram (2 of 2) for Lexus LS 400 1994: 34 1994 vftc c A/c magnetic clutch (left side of engine) A/c magnetic clutch relay (left side of engine compart- ment) A/c power transistor (right side of i/p) A/c pressure switch (right side of engine compt) Acmg Air vent mode control servo motor (center of i/p) Blower motor (right side of i/p) Blower resistor (right side of i/p) Control switch Dome fuse 10a Engine control module (right side of i/p) Extra high speed relay (right side of i/p) G100 (left front fender) G101 (right front fender) G13 G200 (left kick panel) G203 (right kick panel) Heater fuse 15a Heater fusible link 60a Heater relay Hot at all times Hot at all times j/b 2 (left side of engine compt) Hot in acc and run Hot in run or start Igniter (right side of engine compt) J/b 1 (left side of steering column) J/b 2 (left side of engine compt) J/b 3 (behind center of i/p) Noise filter (center of i/p) R/b 5 (left side of engine compt) Radio fuse 7.5a Red Telephone tranceiver & speaker relay (left rear of trunk)
ANTI-LOCK BRAKES Anti-lock Brake Wiring Diagrams, with Traction Control for Lexus LS 400 1994 List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control for Lexus LS 400 1994: 88 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25 A26 Abs and traction ecu (behind glove box) Abs fusible link 60a Abs motor relay (right side of engine compt) Abs solenoid relay (right side of engine compt) Abso Alt Ast B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 B22 Bat D/g Data link connector 1 (top left side of engine) Data link connector 2 (right front side of engine compt) Ecu-b fuse 15a Ecu-ig fuse 15a Fl+ Fl- Fr+ Fr- Fss Fusible link box (left side of engine compt) G200 (left kick panel) G203 (right kick panel) Generator Gnd1 Gnd2 Hot at all times Hot in run J 3 srs junction connector (behind glove box) J/b 1 (left side of steering column) J/b 3 (behind i/p) J/b 4 (behind i/p) Lbl Left front abs speed sensor (behind left front wheel disk) Left rear abs speed sensor (behind left rear wheel disk) Mtt Pkb Pnk Red Right front abs speed sensor (behind right front wheel disk) Right rear abs speed sensor (behind right rear wheel disk) Rl+ Rl- Rr+ Rr- Rss Sac Sfl Sfr Smc Src Srl Srr Stop fuse 25a Stop light switch (mounted on brake pedal support) Stp Tmr Traction brake actuator (left side of engine compartment) Traction cut/ headlight cleaner switch Tsr Anti-lock Brake Wiring Diagrams, with Traction Control (1 of 2) for Lexus LS 400 1994 List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control (1 of 2) for Lexus LS 400 1994: 88 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25 A26 Abs and traction ecu (behind glove box) Abs fusible link 60a Abs motor relay (right side of engine compt) Abs solenoid relay (right side of engine compt) Abso Alt Ast B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 B22 Bat D/g Data link connector 1 (top left side of engine) Data link connector 2 (right front side of engine compt) Ecu-b fuse 15a Ecu-ig fuse 15a Fl+ Fl- Fr+ Fr- Fss Fusible link box (left side of engine compt) G200 (left kick panel) G203 (right kick panel) Generator Gnd1 Gnd2 Hot at all times Hot in run J 3 srs junction connector (behind glove box) J/b 1 (left side of steering column) J/b 3 (behind i/p) J/b 4 (behind i/p) Lbl Left front abs speed sensor (behind left front wheel disk) Left rear abs speed sensor (behind left rear wheel disk) Mtt Pkb Pnk Red Right front abs speed sensor (behind right front wheel disk) Right rear abs speed sensor (behind right rear wheel disk) Rl+ Rl- Rr+ Rr- Rss Sac Sfl Sfr Smc Src Srl Srr Stop fuse 25a Stop light switch (mounted on brake pedal support) Stp Tmr Traction brake actuator (left side of engine compartment) Traction cut/ headlight cleaner switch Tsr Anti-lock Brake Wiring Diagrams, with Traction Control (2 of 1) for Lexus LS 400 1994 List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control (2 of 1) for Lexus LS 400 1994: 93 1b f5 A/t indicator switch A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25 A26 A27 Abs Abs actuator (right side of engine compartment) Abs and traction ecu (behind glove box) Abso Acm B10 B11 B12 B13 B14 B15 B16 B31 B32 Bat Bcm Brake fluid level switch (left rear of engine compartment) Brc Brfa Brp C10 C11 C12 C13 C14 C15 C16 Combination meter Connector (behind glove box) Csw Engine control module (behind glove box) Flo Fro G114 (rear of left cylinder head) G203 (right kick panel) Gauge fuse 10a Gnd Hot at all times Hot in run Idl1 Idl2 Ig1 Ind J/b 1 (left side of steering column) Nca Neo Parking brake switch (on parking brake support) Pkb Pnk Pnk b3 Red Relay box 7 (right side of j/b #1) Rlo Rro Stp Sub throttle actuator (top right rear of engine) Thfa Tr2 Tr5 Trac Trac fuse 15a Trac off Traction control ecu (behind left side of i/p) Traction motor relay (left rear of engine compt) Traction pump and motor (left rear of engine compt) Traction solenoid relay (left front of engine compt) Trco Vsh Vth Vto1 Vto2 Warning and indicator light Wt/bu Anti-lock Brake Wiring Diagrams, with Traction Control (2 of 2) for Lexus LS 400 1994 List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control (2 of 2) for Lexus LS 400 1994: 93 1b f5 A/t indicator switch A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25 A26 A27 Abs Abs actuator (right side of engine compartment) Abs and traction ecu (behind glove box) Abso Acm B10 B11 B12 B13 B14 B15 B16 B31 B32 Bat Bcm Brake fluid level switch (left rear of engine compartment) Brc Brfa Brp C10 C11 C12 C13 C14 C15 C16 Combination meter Connector (behind glove box) Csw Engine control module (behind glove box) Flo Fro G114 (rear of left cylinder head) G203 (right kick panel) Gauge fuse 10a Gnd Hot at all times Hot in run Idl1 Idl2 Ig1 Ind J/b 1 (left side of steering column) Nca Neo Parking brake switch (on parking brake support) Pkb Pnk Pnk b3 Red Relay box 7 (right side of j/b #1) Rlo Rro Stp Sub throttle actuator (top right rear of engine) Thfa Tr2 Tr5 Trac Trac fuse 15a Trac off Traction control ecu (behind left side of i/p) Traction motor relay (left rear of engine compt) Traction pump and motor (left rear of engine compt) Traction solenoid relay (left front of engine compt) Trco Vsh Vth Vto1 Vto2 Warning and indicator light Wt/bu Anti-lock Brake Wiring Diagrams, without Traction Control for Lexus LS 400 1994 List of elements for Anti-lock Brake Wiring Diagrams, without Traction Control for Lexus LS 400 1994: 55 (canada) (usa) A12 A20 Abs actuator (right front of eng compt) Abs ecu (left side of i/p) Abs fusible link 60a Abs indicator Abs motor relay (right side of engine compt) Abs solenoid relay (right side of engine compt) Ast Bat Combination meter D/g Data link connector 1 (top left side of engine) Data link connector 2 (right front side of engine compt) Ecu-b fuse 15a Ecu-ig fuse 15a Fl+ Fl- Fr+ Fr- Fss Fusible link box (left side of engine compt) G203 (right kick panel) Gauge fuse 10a Gnd1 Gnd2 Hot at all times Hot in run Hot with taillight relay energized J 3 srs junction connector (behind glove box) J/b 1 (left side of steering column) J/b 3 (behind i/p) J/b 4 (behind i/p) Left front abs speed sensor (behind left front wheel disk) Left rear abs speed sensor (behind left rear wheel disk) Panel fuse 7.5a Parking brake switch (on parking brake support) Pkb Pnk Red Ree Right front abs speed sensor (behind right front wheel disk) Right rear abs speed sensor (behind right rear wheel disk) Rl+ Rl- Rr+ Rr- Sfl Sfr Srr Stop fuse 25a Stop light switch (mounted on brake pedal support) Stp
COMPUTER DATA LINES Computer Data Lines for Lexus LS 400 1994 List of elements for Computer Data Lines for Lexus LS 400 1994: 50 2b a7 A/c control assembly A11 A12 A16 A22 A23 Abs and traction ecu (behind glove box) Abs ecu (left side of i/p) Abs soleniod relay (right side of engine compt) Air pump valve (left rear of engine) Air suspension ecu (behind glove box) B11 B13 B14 B15 B18 B19 B20 C 1995 vftc C13 C19 Center airbag sensor assembly (in rear end of console) Combination meter Cruise control ecu (behind left side of i/p) Data link connector 1 (top center of engine) Data link connector 2 (behind left side of i/p) E10 E17 E21 Efi main relay (j/b 2) Egr valve (top center of engine) Engine control module (behind glove box) Evap valve (left rear of engine) Fuel pressure up valve (left side of engine) Fuel pump Fuel pump ecu (right rear of trunk) G114 (rear side of left cylinder head) Idle air control valve (top center of engine) Igniter 1 (right side of engine compt) J 3 srs junction connector (behind glove box) J/b 3 3d (behind i/p) J/b 4 (behind i/p) Main left heated oxygen sensor (center left of engine) Main right heated oxygen sensor (center right of engine) Pnk Traction control ecu (behind left side of i/p) W/ traction control W/o traction control Warning and indicator light
COOLING FAN Cooling Fan Wiring Diagram for Lexus LS 400 1994 List of elements for Cooling Fan Wiring Diagram for Lexus LS 400 1994: 15 A/c high pressure switch (right front of engine compt) Cooling fan motor 1 (front of engine compt) Cooling fan motor 2 (front of engine compt) Cooling fan relay 1 Cooling fan relay 2 Cooling fan relay 3 G100 (front left fender) G101 (front right fender) Heater fuse 15a Hot in run or start J/b 1 (left side of steering column) J/b 2 (left side of engine compt) R/b 6 (under left headlamp) Rdi fan fusible link 30a Water temperature switch (left front of engine compt)
CRUISE CONTROL Cruise Control Wiring Diagram for Lexus LS 400 1994 List of elements for Cruise Control Wiring Diagram for Lexus LS 400 1994: 64 12b 1995 vftc c A/d A10 A11 A12 B10 B17 B32 Batt Cancel Ccs Cms Combination meter Combination switch Cruise control Cruise control actuator (right rear of engine compartment) Cruise control ecu (behind left side of i/p) Cruise control switch Data link connector 1 (top left side of engine) Data link connector 2 (behind left side of i/p) E/g Ect Ecu-b fuse 15a Ecu-ig fuse 15a Engine control module (behind glove box) G112 (rear side of left left cylinder head) G200 (left kick panel) G203 (right kick panel) Gauge fuse 10a Gnd Hot at all times Hot in run Hot in start Idl Idl1 Ign Instrument cluster system J 2 junction connector (behind left side of i/p) J 3 junction connector (behind glove box) J/b 1 (left side of steering column tube) J/b 3 (behind i/p) J/b 4 (behind i/p) Main N&c Od1 Parking brake switch (on parking brake bracket) Pkb Pnk Potentiometer Relay box 7 (right side of j/b 1) Resume/ accel Safety magnetic clutch Set/ coast Spd St fuse 7.5a Stop fuse 25a Stop light switch (on brake pedal support) Stp+ Stp- Vehicle speed sensor #1 (on transmission) Vr1 Vr2 Vr3
DEFOGGERS Defogger Wiring Diagram for Lexus LS 400 1994 List of elements for Defogger Wiring Diagram for Lexus LS 400 1994: 19 (left kick panel) g200 (right kick panel) g203 (under left rear pillar) g905 A/c control assembly Choke coil (left rear of trunk) Defog circuit breaker 40a Defogger relay G200 (left kick panel) Gnd Heater Heater fuse 15a Hot at all times Hot in start or run J/b 1 (left side of steering column) Left remote mirror Mir-htr fuse 10a Rdfg Rear window defogger Right remote mirror
ELECTRONIC POWER STEERING Electronic Power Steering Wiring Diagram for Lexus LS 400 1994 List of elements for Electronic Power Steering Wiring Diagram for Lexus LS 400 1994: 20 B12 B14 C 1995 vftc Combination meter Cruise control system Ecu-ig fuse 15a G200 (left kick panel) G203 (right kick panel) Gauge fuse 10a Hot in run J 2 junction connector (left side of dash) J/b 1 (left side of steering column) J/b 3 (behind i/p) J/b 4 (behind i/p) Progressive power steering ecu (below i/p) Progressive power steering solenoid (left front of engine) Sol+ Sol- Spd Vehicle speed sensor no. 1 (on transmission) Power Tilt Steering Column Wiring Diagram for Lexus LS 400 1994 List of elements for Power Tilt Steering Column Wiring Diagram for Lexus LS 400 1994: 39 (left kick panel) (right kick panel) 10a 15a Asw Auto sw B12 C 1995 vftc Dome fuse Ecu, e Ecu-ig fuse Ecu. b G200 G202 (left i/p brace) G203 Gauge fuse Gnd Hot at all times Hot in run J 2 junction connector (behind left side of i/p) J/b 1 (left side of steering column) J/b 2 (left side of eng compt) J/b 4 (behind combination meter) Manual sw Msw Park/neutral position switch (on transmission) Power circuit breaker 30a Red Tilt control motor Tilt down Tilt ecu (left side of i/p) Tilt position sensor Tilt unit (combination switch) Tilt up Tim+ Tim- Tis U.w. sw Unlock warning switch (ignition switch)
ELECTRONIC SUSPENSION Electronic Suspension Wiring Diagram (1 of 2) for Lexus LS 400 1994 List of elements for Electronic Suspension Wiring Diagram (1 of 2) for Lexus LS 400 1994: 73 -rc 1994 vftc c A2 2b Air sus fuse 20a Air sus fusible link 40a Air suspension ecu (behind glove box) Air suspension on/off switch (left side of trunk) Anti-lock brakes system Bat Chk Cle Data link connector 1 (top rear of engine) Data link connector 2 (left side of dash) Door Door courtesy switches Ecu-b fuse 15a Ecu-ig fuse 15a F7 1b Fch Fl+ Fl- G401 (back right panel) G904 (under left rear pillar) G905 (under right rear pillar) Gauge fuse 10a Gnd Gsw High Hot at all times Hot in run Hot with engine main relay energized Igb J 3 junction connector (behind glove box) J/b 1 (left side of steering column) J/b 2 (left engine compartment) J/b 4 (behind i/p) Left front suspension control actuator (on left shock tower) Left rear suspension control actuator (behind left rear seat) Mode Mrly Norm Nsw Pnk Rch Reg Relay box 5 (near j/b 2) Right front suspension control actuator (on right shock tower) Right rear suspension control actuator (behind right rear seat) Rm+ Rm- Sclk Shfl Shfr Shg Shrl Shrr Slex Slfl Slfr Slrd Slrl Slrr Spd Sport Ss1 Ss2 Starting/ charging system Steering sensor (combination switch) Stop fuse 25a Stop light switch (on brake pedal bracket) Stp Suspension control switch Tsw Electronic Suspension Wiring Diagram (2 of 2) for Lexus LS 400 1994 List of elements for Electronic Suspension Wiring Diagram (2 of 2) for Lexus LS 400 1994: 30 1994 vftc c B12 B14 B17 B18 B19 Combination meter Engine control module (behind glove box) G200 (left kick panel) G202 (left i/p brace) G203 (right kick panel) G905 (under right rear pillar) Height Height control compressor (behind right headlight) Height control connector (right rear side of trunk) Height control exhaust valve (behind right headlight) Height control relay 1 Height control relay 2 (right rear of trunk) Height control valve 1 (behind right headlight) Height control valve 2 (center rear of trunk) J 2 junction connector (left side of i/p) J/b 3 (behind i/p) Left front height control sensor (left side of engine compartment) Left rear height control sensor (left side of trunk) Pnk Relay box 6 (under left headlight) Right front height control sensor (right side of engine compartment) Right rear height control sensor (right side of trunk) Sport Vehicle speed sensor (on transmission)
ENGINE PERFORMANCE
4.0L 4.0L, Engine Performance Wiring Diagrams (2 of 3) for Lexus LS 400 1994 List of elements for 4.0L, Engine Performance Wiring Diagrams (2 of 3) for Lexus LS 400 1994: 76 (behind center of i/p) (left (left front (left kick (on trans- (right (right front (top center (top right of engine) (w/ traction control) A16 Air pump fuse link 40a Air pump relay (right side of engine compt) B12 C10 C11 C12 C13 C14 C15 Calif. only Camshaft Control circuit Crankshaft Egr gas temperature sensor (left center of engine) Electronic controlled Electronic controlled transmission solenoid (on transmission) Engine coolant temperature sensor (right front of engine) Engine) Front of G200 G202 i/p brace) G203 kick panel) Gauge fuse 10a Hot at all times Hot in on or start Idl2 Instrument cluster J/b 1 (behind left side of i/p) J/b 3 J/b 4 (behind instrument cluster) J/c 1 (behind Knock Lock-up Mal- function indicator lamp Mission) Neutral position Norm O/d main O/d off ind. Of engine) Oil temp. sensor Panel) Park/ Pattern Position sensor (lower Position sensor 1 Position sensor 2 Power ind. Pwr R/b 5 (left engine compt) Red Right of i/p) Select switch (on console) Sensor 1 (top left of engine) Sensor 2 Solid state Speedometer Sub oxygen sensor (left) (under left side of vehicle) Sub oxygen sensor (right) (under right side of vehicle) Sub throttle position sensor Switch Transmission Vehicle speed sensor (on trans- mission) Vss in Vss out Vta 4.0L, Engine Performance Wiring Diagrams (3 of 3) for Lexus LS 400 1994 List of elements for 4.0L, Engine Performance Wiring Diagrams (3 of 3) for Lexus LS 400 1994: 50 (center top of engine) (calif. only) (rear side of left cylinder head) (top center of engine) Air Aml+ Aml- Amtt Conn c Conn d Data link connector 1 (top center of engine) Data link connector 2 (behind left side of i/p) Engine control module (behind glove box) Fpc G1- G114 G117 (rear side of right cylinder head) G2- Htl1 Htr1 Idl Instrument cluster system (tachometer) Knk1 Knk2 Main heated oxygen sensor (left) (center left of engine) Main heated oxygen sensor (right) (center right of engine) Nco+ Nco- Ne- O/d direct clutch speed sensor (on transmission) Oil Oxl1 Oxr1 Pump Red Solid state Sp2+ Sp2- Te1 Tha Throttle position sensor Thw Vcc Vehicle speed sensor no.2 (on transmission) Volume air flow meter (right side of engine compt) Vta Vta1 Vta2 W/ traction control W/o traction control W/traction control
EXTERIOR LIGHTS Exterior Light Wiring Diagram (1 of 2) for Lexus LS 400 1994 List of elements for Exterior Light Wiring Diagram (1 of 2) for Lexus LS 400 1994: 43 (back right panel) 10a 15a 25a 7.5a B10 B11 B14 Back- up light Back-up light switch (park/neutral position switch) (on transmission) Combination meter Combination switch G200 (left kick panel) G401 Gauge fuse Haz-horn fuse Hazard switch Hot at all times Hot in run J 2 junction connector (left side of i/p) J/b 1 (left side of steering column) J/b 2 (left side of eng compt) J/b 4 (behind combi- nation meter) Left Left rear combination light Left turn Light failure sensor (left rear side of trunk) Off R/b 7 (left side of steering column, near j/b 1) Rear lts Right Right rear combination light Right turn Stop fuse Stop light Stop light switch (on brake pedal support) Tail- light Taillight Turn fuse Turn signal flasher Turn signal light Turn signal switch Warning & indicator light (combination meter) Exterior Light Wiring Diagram (2 of 2) for Lexus LS 400 1994 List of elements for Exterior Light Wiring Diagram (2 of 2) for Lexus LS 400 1994: 27 (front side of right fender) 11b 120a Alt fusible link Fusible link box (left side of engine) G101 G101 (front side of right fender) G905 (under right rear pillar) Head High mount stop light Hot at all times Integra- tion relay J 2 junction connector (behind left side of i/p) J/b 1 (left side of steering column) Left front clearance light Left front side marker light Left front turn signal light Left license plate light Light control switch (combination switch) Off Right front clearance light Right front side marker light Right front turn signal light Right license plate light Tail Tail fuse 15a Taillight relay
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 5) for Lexus LS 400 1994 List of elements for Ground Distribution Wiring Diagram (1 of 5) for Lexus LS 400 1994: 52 A/c dual pressure switch A/c pressure switch A20 A21 Air pump (california) B33 B34 Combination meter Coolant level warning switch Cooling fan motor no. 2 Cooling fan relay no. 3 Crankshaft position sensor shield D16 Data link connector 1 Data link connector 2 Data link connector shield Daytime running light resistor (canada) Efi main relay Engine control module Engine control module shield Engine hood courtesy switch Engine main relay Engine oil level warning switch G100 (front side of left fender) G101 (front side of right fender) G114 (rear of left cylinder head) G117 (right rear of cylinder head) Heater relay J 1 juncton conector J/b 2 Left camshaft position sensor shield Left fog light Left front clearance light Left front side marker light Left front turn signal light Left knock sensor shield Left main heated oxygen sensor Left main heated oxygen sensor shield Left sub oxygen sensor Nca Right camshaft position sensor shield nca Right fog light Right front clearance light Right front side marker light Right front turn signal light Right knock sensor shield Right main heated oxygen sensor Right main heated oxygen sensor shield Right sub oxygen sensor Traction control ecu Volume air flow meter Water temperature switch Ground Distribution Wiring Diagram (2 of 5) for Lexus LS 400 1994 List of elements for Ground Distribution Wiring Diagram (2 of 5) for Lexus LS 400 1994: 34 (w/o memory) A/c control assembly A14 Air vent mode control servo servo motor Brake fluid level switch C14 Canada Center airbag sensor assembly Combination meter From splice for g203 Front cigarette lighter G200 (left kick panel) Glove box light switch Headlight cleaner motor Headlight cleaner relay Integration relay J/b 1 J/b 3 Keyless buzzer Left front suspension control actuator Luggage compartment door opener switch Power main relay Power shoulder belt anchor relay Remote control mirror switch Rheostat Seat heater switch Theft deterrent indicator light To splice for g203 Traction cut switch Traction pump and motor Usa w/ traction control Usa w/o traction control Washer level switch Wiper motor Ground Distribution Wiring Diagram (3 of 5) for Lexus LS 400 1994 List of elements for Ground Distribution Wiring Diagram (3 of 5) for Lexus LS 400 1994: 45 A/c power transistor A11 A16 A18 Automatic light control relay Blower resistor (low speed) Daytime running light relay (canada) Daytime running light relay no. 2 (canada) Driver's power seat reclining motor control Driving position memory/ return switch Extra high speed relay From j 2 junction connector From splice to j/b 1 Front personal light Front vertical position sensor G201 (right i/p brace) G203 (right kick panel) Head rest position sensor Heater Left door key lock/ unlock switch Left front door lock motor, door unlock/ open detection switch Left remote mirror Left vanity light Master power window/ left door lock control switch Moon roof control relay Moon roof control switch Moon roof motor/ limit switch Nca Power seat ecu Power seat ecu shield Radio and player Radio and player shield Rear vertical position sensor Remote control mirror ecu shield Right door key lock/ unlock switch Right door lock control switch Right front door lock motor, door unlock/ open detection switch Right remote mirror Right shoulder belt anchorage adjusting switch Right vanity light Slide position sensor Theft deterrent/ door lock ecu Tilt and power telescopic ecu Tilt ecu To splice for g200 Ground Distribution Wiring Diagram (4 of 5) for Lexus LS 400 1994 List of elements for Ground Distribution Wiring Diagram (4 of 5) for Lexus LS 400 1994: 45 A11 A14 Abs actuator Abs and traction ecu Abs ecu Abs soleniod relay Air pump relay B11 B13 B22 Center airbag sensor assembly Combination switch Cruise control actuator Cruise control ecu Cruise control switch Dimmer switch E13 Fog light switch G202 (left i/p brace) G203 (right kick panel) Height control compressor Height control valve no.1 Ignition switch J 2 junction connector J 4 junction connector Key interlock solenoid Kick down switch Light control switch Nca O/d main switch Progressive power steering ecu Remote control mirror ecu Seat belt warning relay Shift lock ecu Steering sensor Sub throttle actuator shield Suspension control switch Suspension front suspension control Tilt ecu To splice for g203 Traction control ecu Turn signal flasher Unlock warning switch Wiper control relay Wiper washer switch Ground Distribution Wiring Diagram (5 of 5) for Lexus LS 400 1994 List of elements for Ground Distribution Wiring Diagram (5 of 5) for Lexus LS 400 1994: 49 (back right panel) A14 Air suspension ecu Air suspension on/off switch Auto antenna motor and relay Driver's power seat control switch Driver's seat buckle illumination Driver's seat heater Driver's seat heater relay Fuel lid opener solenoid Fuel pump Fuel pump ecu G401 G904 (under left rear pillar) G905 (under right rear pillar) Height control connector Height control relay no. 2 Height control valve no. 2 High mount stop light Left buckle switch Left license plate light Left rear combination light Left rear door ashtray illumination Left rear door lock motor Left rear personal light Left rear suspension control actuator Light failure sensor Luggage compartment key unlock switch Mobile phone Nca Passenger's power seat control switch Passenger's seat buckle illumination Passenger's seat heater Passenger's seat heater relay Power seat ecu (w/ memory) Rear cigarette lighter Rear cigarette lighter illumination Rear personal light Rear window defogger Right buckle switch Right license plate light Right rear abs speed and pad sensor Right rear combination light Right rear door ashtray illumination Right rear door lock motor Right rear suspension control actuator Stereo component amplifier Wireless door lock ecu Woofer speaker amplifier shield
HEADLIGHTS Headlight Wiring Diagram, with DRL for Lexus LS 400 1994 List of elements for Headlight Wiring Diagram, with DRL for Lexus LS 400 1994: 67 2a b10 A/t indicator switch A11 Auto Automatic light control relay (behind left side of i/p) Automatic light control sensor (left side of dash) B10 B11 B13 B14 B8 2b C17 C18 Combination meter Combination switch Daytime running light relay 4 (behind glove box) Daytime running light resistor (behind right headlight) Dimmer relay Dimmer switch Diode (left side of dash) Dome fuse 15a Drl fuse 10a Ecu-b fuse 15a Ecu-ig fuse 15a F2 1b Flash Fog fuse 15a Fog light relay Fog light switch a6 Fog lights G101 (right front fender) G200 (left kick panel) G202 (left i/p brace) G203 (right kick panel) Gauge fuse 10a Generator Head Head lh-lwr fuse 15a Head lh-upr fuse 15a Head rh-lwr fuse 15a Head rh-upr fuse 15a Headlight relay High High beam Hot at all times Hot at all times Hot in run Indicator Integration relay J 2 junction connector (behind left side of i/p) J/b 2 (left side of engine compartment) J/b 1 (left side of steering column) J/b 4 (behind i/p) Left front door courtesy switch (near left front door latch) Left head- light Light control switch Main daytime running light relay (below i/p) Nca Off Parking brake switch (on bracket) Pnk Red Relay box 5 (near jb 2) Relay box 7 (right side of j/b 1) Right head- light Tail b2 Taillight relay Headlight Wiring Diagram, without DRL for Lexus LS 400 1994 List of elements for Headlight Wiring Diagram, without DRL for Lexus LS 400 1994: 54 2a b10 A10 A11 A12 Auto Automatic light control relay (behind left side of i/p) Automatic light control sensor (left side of dash) B11 B13 B14 B8 2b C17 C18 Combination meter Combination switch Dimmer switch Dome fuse 15a Ecu-ig fuse 15a F2 1b Flash Fog fuse 15a Fog light relay Fog light switch Fog lights G101 (right front fender) G200 (left kick panel) G202 (left i/p brace) G203 (right kick panel) Gauge fuse 10a Head Headlight relay High High beam indicator Hot at all times Hot in run Integration relay J 2 junction connector (behind left side of i/p) J/b 2 (left side of engine compartment) J/b 1 (left side of steering column) J/b 4 (behind i/p) Left front door courtesy switch Left head fuse 15a Left head- light Light control switch Nca Off Pnk Red Relay box 5 (near jb 2) Relay box 7 (right side of j/b 1) Right head fuse 15a Right head- light Tail Taillight relay
HORN Horn Wiring Diagram for Lexus LS 400 1994 List of elements for Horn Wiring Diagram for Lexus LS 400 1994: 9 A11 Haz-horn fuse 15a Horn relay Horn switch (combination switch) Hot at all times J/b 2 (left side of engine compartment) Left horn Right horn Theft deterrent and door lock ecu
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram (1 of 2) for Lexus LS 400 1994 List of elements for Instrument Cluster Wiring Diagram (1 of 2) for Lexus LS 400 1994: 90 (left side of steering column) (rear of left cylinder head) 1b 1g A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 Abs Air conditioning system Anti-lock brakes system Automatic light sensor (left side of i/p) B10 B11 B12 B13 B14 Brake C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 Combination meter Control circuit Control level Cruise control Cruise control system (cruise control ecu) Data link connector 1 (top center of engine) Dome fuse 10a Ect power Ecu-ig fuse 15a Electronic suspension system Engine controls system Engine controls system (transmission pattern select switch) Exterior lights system Fuel gauge Fuel sender (inside fuel tank) G114 G200 (left kick panel) Gauge fuse 10a Generator (right front of engine) Head- lights system Height Hi beam Hot at all times Hot in run Hot with taillight relay energized Igniter (right side of engine compartment) Illum lts Interior lights system (rheostat & rheostat volume) J/b 1 (left side of steering column) J/b 2 2b J/b 3 (behind left side of i/p) J/b 4 (behind i/p) Left turn Low fuel O/d off Oil level Outside temp Panel fuse 7.5a Park/neutral position switch (on transmission) Pnk Red Right turn Speedometer Sport Tachometer Trac off Usa Vehicle speed sensor 1 (on transmission) Washer Water temper- ature sender (left side of engine) Water temper- ture gauge Instrument Cluster Wiring Diagram (2 of 2) for Lexus LS 400 1994 List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Lexus LS 400 1994: 58 (behind left side of i/p) (check engine) (front side of left fender) A18 Air suspen- sion ecu (right rear of trunk) Airbag Anti-lock brakes system B12 Brake Brake fluid level switch (on brake fluid reservoir) Charge Coolant level warning switch (left side of engine) Door locks system Ecu-b fuse 15a Engine control module (behind glove box) Engine oil level warning switch (right front of engine) Exterior lights system (light failure sensor) G100 G101 (front side of right fender) G200 (left kick panel) G904 (corner left rear pillar) Hot at all times Hot in start or run Ign fuse 10a Interior lights system J/b 1 (left side of steering column) J/b 4 (behind combination meter) J/b 4 (behind i/p) J/c 2 Left front abs speed sensor & pad sensor (behind left front wheel disk) Left front door courtesy switch Left rear abs speed sensor & pad sensor (behind left rear wheel disk) Left rear door courtesy switch Multi- function ind lt Oil Oil level Oil pressure switch (left front of engine) Oil temp. Open door Parking brake switch (left side of i/p) Pps ecu (on j/b 1) R/b 7 (left side of steering column, near j/b 1) Rear lts Red Right front abs speed sensor & pad sensor (behind right front wheel disk) Right front door courtesy switch Right rear abs speed sensor & pad sensor (behind right rear wheel disk) Right rear door courtesy switch Seat belt St fuse 7.5a Starting/ charging system Trac Trip a/b Trip odo Trip reset Warning & indicator light Warning system Washer level switch (on washer fluid reservoir)
INTERIOR LIGHTS Courtesy Lamp Wiring Diagram for Lexus LS 400 1994 List of elements for Courtesy Lamp Wiring Diagram for Lexus LS 400 1994: 47 (under left rear pillar) (under right rear pillar) 10a 15a Cig fuse Dome fuse Door Front personal light G200 (left kick panel) G203 (right kick panel) G904 G904 (under left rear pillar) G905 G905 (under right rear pillar) Gauge fuse Hot at all times Hot in accy or run Hot in run Ignition key cylinder light Integra- tion relay Interior J/b 1 (left side of steering column) J/b 2 (left side of eng compt) J/b 3 (behind center of i/p) Left buckle light Left door key lock and unlock switch Left front door courtesy light Left front door courtesy switch Left rear door courtesy light Left rear door courtesy switch Left rear personal light Left step light Left vanity light Luggage compartment light Luggage compartment light switch (center rear of trunk) Map Off Red Right buckle light Right front door courtesy light Right front door courtesy switch Right rear door courtesy light Right rear door courtesy switch Right rear personal light Right step light Right vanity light Warning & indicator light (combination meter) Instrument Illumination Wiring Diagram for Lexus LS 400 1994 List of elements for Instrument Illumination Wiring Diagram for Lexus LS 400 1994: 53 (nakamichi) a2 b10 (pioneer) (under left rear pillar) (under right rear pillar) 11b 120a A/c control assembly A10 A12 A13 A9 (nakamichi) (pioneer) Alt fusible link B14 Combination meter Control circuit Down Electronic control transmission pattern select switch (usa w/ elec- tronic suspen- sion only) Front cigarette lighter Fusible link box (left side of engine) G200 (left kick panel) G203 (right kick panel) G904 G905 Glove box light Glove box light switch (behind glove box) Hazard switch Head Hot at all times Ill+ Integration relay J 2 junction connector (behind left side of i/p) J/b 1 (left side of steering column) J/b 3 (behind combination meter) Left rear door ashtray illumi- nation Light control switch (combination switch) Meter illum O/d main switch Off Panel fuse 7.5a Radio and player Rear cigarette lighter illumi- nation Reos Rheostat (left side of i/p) Rheostat volume (right side of i/p) Right rear door ashtray illumi- nation Seat heater switch Suspen- sion control switch Tail Taillight relay Traction cut switch (with traction control only) Usa only W/ power telescopic W/o power telescopic
MEMORY SYSTEMS Memory Mirrors Wiring Diagram for Lexus LS 400 1994 List of elements for Memory Mirrors Wiring Diagram for Lexus LS 400 1994: 48 10a A10 A11 A12 A13 A14 A15 A16 Acc Defogger system Dome fuse Down G203 (right kick panel) Gnd Hot at all times Hsrl Hsrr J/b 1 (left side of steering column) J/b 2 (left side of engine compartment) J/b 4 (behind combination meter) Left Left remote control mirror M+l M+r Mhl Mhr Mvl Mvr Nca Operation switch Power seat ecu (under driver's seat) Radio 2 fuse 7.5a Red Remote control mirror ecu (right side of dash) Remote control mirror switch Right Right remote control mirror Select switch Shield Swb Swe Swlh Swlv Swrh Swrv Tilt/power telescopic ecu (behind left side of dash) Vsrl Vsrr Memory Power Tilt & Power Telescopic Wiring Diagram for Lexus LS 400 1994 List of elements for Memory Power Tilt & Power Telescopic Wiring Diagram for Lexus LS 400 1994: 77 10a 15a A10 A11 A12 A16 Asw Auto sw B. dw B. up B10 B11 B12 B13 B14 B15 B16 B17 B18 Bem+ Bem- Bes Dome fuse Down Driving position memory and return switch Dsw Ecu-ig fuse Ecu. b Ecu. e G200 (left kick panel) G203 (right kick panel) Gauge fuse Gnd Hot at all times Hot in run Interior lights system J 2 junction connector (behind left side of dash) J/b 1 (left side of steering column) J/b 2 (left side of engine compartment) J/b 4 (behind combination meter) Left front door courtesy switch Manual sw Mry Msw N0. 1 N0. 2 Nca Park/neutral position switch (on transmission) Pnk Power circuit breaker 30a Power seat ecu (under driver's seat) Red Remote control mirror ecu (right side of dash) Set Shield Shoulder belt anchor motor Shoulder belt anchor sensor Telesco long Telesco short Telescopic control motor Telescopic position sensor Telescopic position sensor (left side of dash) Tem+ Tem- Tes Tilt and power telescopic ecu (left side of dash) Tilt and power telescopic unit (combination switch) Tilt control motor Tilt down Tilt position sensor Tilt up Tim+ Tim- Tis U.w. sw Unlock warning switch (ignition switch) Warning systems (seat belt warning relay) Memory Seat Wiring Diagram (1 of 2) for Lexus LS 400 1994 List of elements for Memory Seat Wiring Diagram (1 of 2) for Lexus LS 400 1994: 39 A/t indicator switch Antenna motor B11 B12 Door circuit breaker 30a Down Driver's front vertical motor Driver's head rest motor Driver's power seat control switch Driver's rear vertical motor Driver's slide control motor Driving position memory/ return switch Ecu-ig fuse 15a Front Front vertical G203 (right kick panel) G904 (lower left "c" pillar) Hot at all times Hot in run Interior light system J/b 1 (left side of dash) J/b 4 (behind left side of dash) Left front door courtesy switch (near left front door latch) Luggage compt light Lumbar support motor (under left seat) Lumbar support switch Nca Pnk Power seat ecu (under driver's seat) Rear Reclining Red Rest up head Set Slide Stop fuse 25a Stop light switch (on brake support) Tilt/power telescopic ecu (behind left side of dash) Vertical rear Memory Seat Wiring Diagram (2 of 2) for Lexus LS 400 1994 List of elements for Memory Seat Wiring Diagram (2 of 2) for Lexus LS 400 1994: 28 2b b8 Dome fuse 10a Down Driver's power seat reclining motor control (under driver's seat) Front Front vertical position sensor (under driver's seat) G905 (under right "c" pillar) Head rest position sensor (driver's seat back) Hot at all times J/b 1 (left side of dash) J/b 2 (left side engine compt) Lumbar support Passenger's front vertical motor Passenger's head rest motor Passenger's lumbar support motor Passenger's power seat control switch Passenger's rear vertical motor Passenger's reclining motor Passenger's slide motor Rear Rear vertical position sensor (under driver's seat) Reclining Red Rest head Slide Slide position sensor (under driver's seat) Vertical front Vertical rear
PASSIVE RESTRAINTS Electric Tension Reducer Wiring Diagram for Lexus LS 400 1994 List of elements for Electric Tension Reducer Wiring Diagram for Lexus LS 400 1994: 12 C 1995 vftc G904 (under left rear pillar) G905 (under right rear pillar) Gauge fuse 10a Hot in run J/b 1 (left side of steering column) J/b 4 (behind combi- nation meter) Left buckle switch (inside driver's seat belt buckle head) Left tension reducer solenoid (below left "b" pillar) Right buckle switch (inside passenger's seat belt buckle head) Right tension reducer solenoid (below right "b" pillar) Warning systems (seat belt warning relay) Power Shoulder Belt Anchorage Wiring Diagram for Lexus LS 400 1994 List of elements for Power Shoulder Belt Anchorage Wiring Diagram for Lexus LS 400 1994: 60 (below right "b" pillar) 10a 15a A10 A11 A12 Asw B. dw B. up B10 B11 B12 B13 B14 B15 B16 B17 B18 Bem+ Bem- Bes C 1995 vftc Dome fuse Down Driving position memory/ return switch (left side of i/p) Dsw Ecu-ig fuse Ecu. b Ecu. e Electronic power steering (power tilt circuit w/ power telescopic) G200 (left kick panel) G203 (right kick panel) Gnd Hot at all times Hot in run Interior lights system (rheostat) J/b 1 (left side of steering column) J/b 2 (left side of eng compt) J/b 4 (behind combination meter) Left shoulder belt anchor motor (below left "b" pillar) Mry Msw N0. 1 N0. 2 Pnk Power circuit breaker 30a Power shoulder belt anchor relay (left side of i/p) Red Right shoulder belt anchor motor Right shoulder belt anchorage adjusting switch Set Shoulder belt anchor sensor (below left "b"pillar) Tem+ Tem- Tes Tilt and power telescopic ecu (left side of i/p) Tim+ Tim- Tis U.w. sw
POWER ANTENNA Power Antenna Wiring Diagram for Lexus LS 400 1994 List of elements for Power Antenna Wiring Diagram for Lexus LS 400 1994: 30 Acc Amp+ Ant+b Anta Antb Auto antenna control relay Auto antenna motor Auto antenna motor and relay (left side of trunk) Down Ecu-ig fuse 15a G904 (under left rear pillar) Gnd Hot at all times Hot in accy or run Hot in run J/b 1 (left side of steering column) J/b 4 (behind combi- nation meter) Nakamichi Pioneer Pioneer only R/b 2 (left side of eng compt) Radio 1 fuse 20a Radio 2 fuse 7.5a Radio and player Red Sensor Sgnd Sig Svcc Woofer speaker amplifier (left rear side of trunk)
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 5) for Lexus LS 400 1994 List of elements for Power Distribution Wiring Diagram (1 of 5) for Lexus LS 400 1994: 64 A/c magnetic clutch relay Abs fusible link 60a Abs motor relay Abs soleniod relay Air pump (california) Air sus fuse 20a Air suspension ecu Alt fusible link 120a Alternator Am1 fusible link 40a Am2 fusible link 30a B14 Battery Blower motor Cooling fan motor no. 1 Cooling fan relay Door circuit breaker 30a Driver's power seat control switch Driver's seat heater relay Engine main relay Fl air pump fusible link 40a Fl air sus fusible link 40a Fl heater fusible link 60a From heater fuse Fuel lid opener switch Fusible link box G100 (front side of left fender) Heater relay Height control connector Height control relay no. 1 J/b 1 J/b 2 Left rear power window control switch Moon roof control relay Nca No. 1 No. 2 No. 3 Passenger's power seat control switch Passenger's seat heater relay Power circuit breaker 30a Power main relay Power seat ecu ecu (w/ memory) Power shoulder belt anchor relay Power window master switch/ left door lock control switch R/b 5 R/b 6 Rdi fan fusible link 30a Red Right front power window control switch Right rear power window control switch Seat heater switch Seat-htr fuse 20a Starter Theft deterrent and door lock ecu Tilt and power telescopic ecu Tilt ecu To ignition switch To j/b 1 fog fuse To j/b 1 taillight relay To main fusible link Traction soleniod relay W/ power telescopic W/o power telescopic Power Distribution Wiring Diagram (2 of 5) for Lexus LS 400 1994 List of elements for Power Distribution Wiring Diagram (2 of 5) for Lexus LS 400 1994: 55 (not used) A/c control assembly A13 A14 Abs and traction ecu Abs ecu Acc Air suspension ecu Amplifier Auto antenna motor and relay B14 B21 Center airbag sensor assembly Cig fuse 15a Cruise control ecu E22 Ecu-b fuse 15a Engine control module Fog fuse 15a Fog light relay From fusible link box am1 fusible link From fusible link box am2 fusible link From r/b 5 pin 5 Front cigarette lighter G200 (left kick panel) G905 (right "c" pillar) Height control relay no. 2 Ign fuse 10a Ignition switch J/b 1 J/b 4 Lock Main daytime running light relay (canada) Park/ neutral position switch R/b 7 Radio and player Radio no. 2 fuse 7.5a Rear cigarette lighter Red Remote control mirror ecu Remote control mirror switch Run Shift lock ecu St fuse 7.5a Start Stop fuse 25a Stop light switch Theft deterrent and door lock control ecu To fuel injectors To j/b 1 defog circuit breaker To j/b 1 pin 3 Traction control ecu W/ traction control W/o traction control Warning and indicator light Power Distribution Wiring Diagram (3 of 5) for Lexus LS 400 1994 List of elements for Power Distribution Wiring Diagram (3 of 5) for Lexus LS 400 1994: 73 (w/ memory) (w/ traction control) A15 A24 Abs and traction ecu Abs ecu Air suspension ecu Air vent mode control servo motor Auto antenna motor and relay Automatic light control relay Back-up light switch Choke coil Combination meter Cruise control ecu Defog circuit breaker 40a Defogger relay E11 Ecu-ig fuse 15a Electronic controlled transmission pattern select switch Engine fuse 7.5a Exterior lights: taillights Extra high speed relay From fusible link box am2 fusible link From ignition switch From j/b 1 pin 1 Gauge fuse 10a Hazard switch Headlight cleaner relay Heater Heater fuse 15a Integration relay Interior lights J/b 1 J/b 3 J/b 4 Left remote mirror Left tension reducer solenoid Light failure sensor Main daytime running light relay (canada) Mir-htr fuse 10a Mobilephone Noise filter Panel fuse 7.5a Park/ neutral position switch Power seat ecu Progressive power steering ecu R/b 7 Right remote mirror Right tension reducer solenoid Seat belt warning relay Shift lock ecu Steering sensor (combination switch) Tail fuse 15a Taillight relay Telephone transceiver and speaker relay Theft deterrent and door lock ecu Tilt and power telescopic ecu Tilt ecu To engine main relay j/b 2 Trac fuse 15a Traction control ecu Turn fuse 7.5a Vehicle speed sensor 1 W/ power telescopic W/ traction control W/o power telescopic W/o traction control Warning and indicator light Washer motor Wiper control relay Wiper fuse 20a Wiper motor Wiper/ washer switch (combination switch) Power Distribution Wiring Diagram (4 of 5) for Lexus LS 400 1994 List of elements for Power Distribution Wiring Diagram (4 of 5) for Lexus LS 400 1994: 72 (canada) (usa) A/c control assembly A10 A14 A20 Amplifier Auto antenna motor and relay Automatic light control relay B10 B11 B18 Combination meter Day/ night shift switch Dimmer relay Dome fuse 10a Door key cylinder light and outside handle switch Efi fuse 20a Efi main relay Engine control module From fusible link box pin 8 Front personal light Haz-horn fuse 15a Hazard switch Head lh-lwr fuse 10a Head lh-upr fuse 15a Head rh-lwr fuse 10a Head rh-upr fuse 15a Headlight relay Headlights system Headlights system (canada) Headlights system (usa) Horn relay Ignition key cylinder light Integration relay J/b 1 J/b 2 J/b 3 J/b 4 Left front door courtesy light Left head fuse 15a Left rear personal light Left step light Left vanity light Luggage compartment light Main daytime running light relay Moon moon roof roof control control relay relay Moon roof control relay relay Nca Power seat ecu R/b 5 Radio and player Radio no. 1 fuse 20a Red Remote control mirror ecu (w/ memory) Right front door courtesy light Right head fuse 15a Right rear door courtesy light Right rear personal light Right step light Right vanity light Starter relay Tel fuse 15a Telephone transceiver and speaker relay Theft deterrent and door lock ecu Theft deterrent horn Tilt and power telescopic ecu Tilt ecu W/ power telescopic W/o power telescopic Warning and indicator light Wireless door lock main switch Power Distribution Wiring Diagram (5 of 5) for Lexus LS 400 1994 List of elements for Power Distribution Wiring Diagram (5 of 5) for Lexus LS 400 1994: 14 From ignition switch Fuel injector no. 1 Fuel injector no. 2 Fuel injector no. 3 Fuel injector no. 4 Fuel injector no. 5 Fuel injector no. 6 Fuel injector no. 7 Fuel injector no. 8 Igniter no. 1 Igniter no. 2 Ignition coil no. 1 Ignition coil no. 2 Noise filter
POWER DOOR LOCKS Keyless Entry & Anti-Theft Wiring Diagram (1 of 2) for Lexus LS 400 1994 List of elements for Keyless Entry & Anti-Theft Wiring Diagram (1 of 2) for Lexus LS 400 1994: 66 1b d8 1b e7 1b e9 2b b8 30a Acc Bcty Bkul Bzr Cig fuse 15a Cty Dome Dome fuse 10a Door circuit breaker Dul Ecu-ig fuse 15a Engine hood courtesy switch (center front of engine compartment) Fssr G101 (right front fender) G200 (left kick panel) G203 (right kick panel) G904 (left "c" pillar) Head Headlight relay Hood Horn Horn relay Hot at all times Hot in run Hot in run or accy Ind J/b 1 (left side of dash) J/b 2 (left side of engine compt) J/b 4 (left side of dash) Keyless buzzer (left rear of engine compt) Keyless buzzer volume switch Left front door key lock/unlock switch Lock Lsr2 Lssr Luggage compartment light Luggage compartment light switch (center rear of trunk) Master power window/door lock control switch Pcty Power circuit breaker 30a Power main relay Red Right front door key lock/unlock switch Right front door lock control switch Rly Rrl Rssr Sol Starter relay Sul Swl Swul Tail Taillight relay Theft deterrent and door lock ecu (right side of dash) Trk Ul- Ulsw Unlock Wireless door lock ecu (left rear of trunk) Wireless door lock main switch Keyless Entry & Anti-Theft Wiring Diagram (2 of 2) for Lexus LS 400 1994 List of elements for Keyless Entry & Anti-Theft Wiring Diagram (2 of 2) for Lexus LS 400 1994: 28 B11 G200 (left kick panel) G203 (right kick panel) G407 (center rear of trunk) G904 (left "c" pillar) G905 (right "c" pillar) Haz-horn fuse 15a Hot at all times Ignition/ unlock warning switch (ignition switch) J 2 junction connector (behind left side of dash) J/b 2 (left side of engine comp) J/b 3 (behind center of dash) J/b 4 (left side of dash) Left front door courtesy switch (near left front door latch) Left front door lock motor, unlock/ open detection switch Left rear door courtesy switch (near left rear door latch) Left rear door lock motor Luggage comparment door opener motor (center rear of trunk) Luggage compartment door opener switch Luggage compartment key unlock switch (right rear of trunk) Main Rheostat volume/ theft indicator light Right front door courtesy switch (near right front door latch) Right front door lock motor, unlock/ open detection switch Right rear door courtesy switch (near right rear door latch) Right rear door lock motor Theft Theft deterrent horn (right rear of engine compt)
POWER MIRRORS Photochromic Mirror Wiring Diagram for Lexus LS 400 1994 List of elements for Photochromic Mirror Wiring Diagram for Lexus LS 400 1994: 13 Day/night shift switch (center front of roof) Dome fuse 10a G200 (left kick panel) Hot at all times Ignition switch Inner mirror Interior lights system J/b 1 (left side of steering column) J/b 2 (left side of engine compt) J/b 4 (behind combi- nation meter) J/c 2 junction connector (behind left side of dash) Red Unlock warning switch Power Mirror Wiring Diagram for Lexus LS 400 1994 List of elements for Power Mirror Wiring Diagram for Lexus LS 400 1994: 17 Defogger system Down G200 (left kick panel) Hot in accy or run J/b 1 (left side of steering column) Left Left remote mirror Left up Operation Radio 2 fuse 7.5a Red Remote control mirror switch Right Right down Right remote mirror Select switch Switch
POWER SEATS Power Seat Wiring Diagrams for Lexus LS 400 1994 List of elements for Power Seat Wiring Diagrams for Lexus LS 400 1994: 42 1b e9 2b a5 Control Door circuit breaker 30a Down Driver's front vertical motor Driver's lumbar support motor Driver's power seat control switch Driver's rear vertical motor Driver's reclining motor Driver's seat heater Driver's seat heater relay (below passenger's seat) Driver's slide motor Front Front vertical G200 (left kick panel) G904 (under left "c" pillar) G905 (under right "c" pillar) Hot at all times Hot in run J/b 1 (left side of dash) J/b 2 (left side of engine compt) J/b 3 (behind center of dash) Left Lumbar Lumbar support Motor Passenger's Passenger's seat heater relay (below passenger's seat) Passengers's seat heater Power Rear Rear vertical Reclining Right Seat Seat heater switch Seat/ htr fuse 20a Slide Support Switch Vertical
POWER TOP/SUNROOF Moonroof Wiring Diagram for Lexus LS 400 1994 List of elements for Moonroof Wiring Diagram for Lexus LS 400 1994: 35 (center front of roof) (right kick panel) 10a 15a 30a Close Cls Dome fuse Down Dwn Ecu-ig fuse G203 Gnd Hot at all times Hot in run Is1 Is2 J/b 1 (left side of steering column) J/b 2 (left side of eng compt) J/b 4 (behind combi- nation meter) Moon roof control relay (center front of roof) Moon roof control switch Moon roof motor Moon roof motor & limit switch (center front of roof) Mtr+ Mtr- No. 1 No. 2 Open Opn Power circuit breaker Power main relay Power windows system (rear power window control switch) Red Theft deterrent and door lock ecu (left side of i/p)
POWER WINDOWS Power Window Wiring Diagram for Lexus LS 400 1994 List of elements for Power Window Wiring Diagram for Lexus LS 400 1994: 30 Door lock Down Ecu-ig fuse 15a G200 (left kick panel) G203 (right kick panel) Hot at all times Hot in run or start J/b 1 (left side of steering column) J/b 4 (left side of dash) Left front Left front power window motor Left rear Left rear power window control switch Left rear power window motor Lock Lock switch Master power window switch/ left door lock control switch Nca Norm Power circuit breaker 30a Power main relay Power window master switch Red Right front Right front power window control switch Right front power window motor Right rear Right rear power window control switch Right rear power window motor Theft deterrent ecu (behind left side of dash)
RADIO Radio Wiring Diagrams, Nakamichi for Lexus LS 400 1994 List of elements for Radio Wiring Diagrams, Nakamichi for Lexus LS 400 1994: 86 (dash harness, lower center of dash) (floor 1 harness, right front of luggage compartment) b80 (floor 1 harness, under center console) b21 (under right rear pillar) g905 +b2 A10 A11 A12 A13 A14 A15 Acc Acc or on All times Amp Ant Anta Antb Automatic cd changer (right side of luggage compartment) B10 B12 B23 B81 (floor 1 harness, right front of luggage compartment) Ba9 Bb8 Bc8 Bd9 Beep Cd player Cdl+ Cdl- Cdr+ Cdr- Dome fuse 10a Door speaker Engine compartment fuse/relay block 2 (on left front of engine compartment, near battery) Fl+ Fl- Floor 1 harness, under center console Fr+ Fr- G206 (right dash brace) Gnd Hot at Hot in I74 I75 (dash harness, lower center shield Illum Interior lights system J/b 3 (behind top center of dash) Left front door speaker Left rear door speaker Luggage compartment light switch Mute Nca Of dash) Passenger compartment fuse/relay block (under left side of dash) Pnk Power antenna system Radio & cd player Radio 1 fuse 20a Radio 2 fuse 7.5a Red Right front door speaker Right rear door speaker Rl+ Rl- Rli+ Rli- Rlo+ Rlo- Rr+ Rr- Sgnd Shield Stereo component amplifier & woofer speaker amplifier (right side of luggage compartment) Telephone transceiver & speaker relay (left rear corner of engine compartment) Tlmt Tsw Tweeter Txm+ Txm- Txs+ Txs- Vi0 Woofer speaker (center of rear shelf) Radio Wiring Diagrams, Pioneer for Lexus LS 400 1994 List of elements for Radio Wiring Diagrams, Pioneer for Lexus LS 400 1994: 86 (under left rear pillar) g904 +b2 A10 A12 Acc Acc or on All times Amp Ant Anta Antb Automatic cd changer (right side of luggage compartment) B10 B12 B23 B42 (floor 2 harness, behind left rear seat) B43 (floor 2 harness, behind left rear seat) B48 (floor 2 harness, left front of trunk) Ba9 Bb8 Bc8 Bd9 Cd player Cdl+ Cdl- Cdr+ Cdr- Cowl harness, upper left side of dash Dash harness, lower right center of dash Dome fuse 10a Door speaker Engine compartment fuse/relay block 2 (on left front of engine compartment, near battery) Fl+ Fl- Floor 1 harness, below center console Fr+ Fr- G206 (right dash brace) Gnd Hot at Hot in I139 I74 I76 (dash harness, lower right center of dash) Illum Interior lights system J/b 3 (behind top center of dash) Left front door speaker Left rear door speaker Luggage compartment light switch Mute Nca Passenger compartment fuse/relay block (under left side of dash) Pnk Pnk a6 Pnk b1 Power antenna system Radio & cd player Radio 1 fuse 20a Radio 2 fuse 7.5a Red Red b4 Right front door speaker Right rear door speaker Rl+ Rl- Rli+ Rli- Rlo+ Rlo- Rr+ Rr- Sgnd Shield Telephone transceiver & speaker relay (left rear corner of luggage compartment) Tlmt Tweeter Txm+ Txm- Txs+ Txs- Vi0 a2 Woofer speaker (center of rear shelf) Woofer speaker amplifier (under left side of rear shelf) Wp+ Wp-
SHIFT INTERLOCKS Shift Interlock Wiring Diagram for Lexus LS 400 1994 List of elements for Shift Interlock Wiring Diagram for Lexus LS 400 1994: 24 15a 25a Acc Cig fuse Ecu-ig fuse G200 (left kick panel) G202 (left i/p brace) Hot at all times Hot in accy or run Hot in run J 2 junction connector (behind left side of i/p) J/b 1 (left side of steering column) J/b 4 (behind combi- nation meter) Key interlock solenoid (ignition switch) Kls+ Shift lock control switch Shift lock ecu (below console, near shift selector) Shift lock solenoid Sl+ Sl- Solid state Stop fuse Stop light switch (on brake pedal support) Stp
STARTING/CHARGING Charging Wiring Diagram for Lexus LS 400 1994 List of elements for Charging Wiring Diagram for Lexus LS 400 1994: 13 Alt fusible link 120a Alternator Am1 fusible link 40a Battery Charging warning light Engine fuse 7.5a Fusible link box (left side of engine compartment) Hot in run or start Ign fuse 10a J/b 1 (left side of steering column) Nca Starter motor Warning and indicator light Starting Wiring Diagram for Lexus LS 400 1994 List of elements for Starting Wiring Diagram for Lexus LS 400 1994: 25 (on transaxle) Acc Am2 fusible link 30a B10 B13 Battery Engine control module (behind glove box) Fusible link box (left side of engine compt) Hot at all times Ignition switch J/b 2 (left side of engine compartment) J/b 4 (behind i/p) Lock Nca Park/ neutral position switch Red Relay box 7 (right side of j/b 1) Run St fuse 7.5a St2 Sta Start Starter motor (rear of engine) Starter relay Theft deterrent and door lock control ecu (behind left side of i/p)
SUPPLEMENTAL RESTRAINTS Supplemental Restraint Wiring Diagram for Lexus LS 400 1994 List of elements for Supplemental Restraint Wiring Diagram for Lexus LS 400 1994: 33 +sl +sr -sl -sr Acc Airbag Airbag squib (front passenger's airbag assembly) Airbag squib (steering wheel pad) Center airbag sensor assembly (in rear end of console) Cig fuse 15a Data link connector 1 (top of engine) Data link connector 2 (behind left side of i/p) Ecu-b fuse 15a G200 (left kick panel) G202 (left i/p brace) Hot at all times Hot in run or accy Hot in run or start Ig2 Ign fuse 10a J 3 srs junction connector (behind glove box) J/b 1 (left side of i/p) Left front airbag sensor (front of right strut tower) Left seat belt pretensioner Pl+ Pl- Pr+ Pr- Red Right front airbag sensor (front of left strut tower) Right seat belt pretensioner Seat belt pretensioner check connector (under right rear seat) Warning and indicator light
TRANSMISSION
TRUNK, TAILGATE, FUEL DOOR Trunk & Fuel Door Release for Lexus LS 400 1994 List of elements for Trunk & Fuel Door Release for Lexus LS 400 1994: 24 (1990) (1991-92) (1993-94) theft deterrent & door lock ecu (behind left side of dash) (1993-94) (1991-92) (1990) Be7 Cig fuse 15a Door circuit breaker 30a Ecu-ig fuse 15a Fb1 Fuel lid opener switch Fuel lid opener solenoid (right side of luggage compartment) G200 (left kick panel) G905 (below right rear "c" pillar) Hot at all times Hot in acc or run Hot in run or start J/b 1 (under left side of dash) J/b 4 (behind combination meter) Luggage compartment door opener motor (center rear of luggage compartment) Luggage compartment door opener switch T10 T10 t11 t11 T10 t9 T11 T11 t10
WARNING SYSTEMS Warning System Wiring Diagrams for Lexus LS 400 1994 List of elements for Warning System Wiring Diagrams for Lexus LS 400 1994: 22 (left kick panel) (under left rear pillar) Buckle switch (inside driver's buckle head) Dome fuse 10a G200 G904 Gauge fuse 10a Hot at all times Hot in run Interior lights system J 2 junction connector (behind left side of i/p) J/b 1 (left side of steering column) J/b 4 (behind combi- nation meter) Left front door courtesy switch Passive restraint system (left tension reducer solenoid) R/b 2 (left side of eng compt) Red Seat belt warning light Seat belt warning relay (left side of i/p) Time/ buzzer Unlock warning switch (in ignition switch) Warning and indi- cator light (combi- nation meter)
WIPER/WASHER Front Wiper/Washer Wiring Diagram for Lexus LS 400 1994 List of elements for Front Wiper/Washer Wiring Diagram for Lexus LS 400 1994: 18 (left rear of eng compt) G200 (left kick panel) G202 (left i/p brace) G203 (right kick panel) Hot in run Int Int time J 2 junction connector (behind left side of i/p) J/b 1 (left side of steering column) Lo/ mist Lo/mist Off Washer motor (left front of eng compt) Washer switch Wiper control relay (behind left side of i/p) Wiper fuse 20a Wiper motor Wiper/ washer switch Headlamp Washer Wiring Diagram for Lexus LS 400 1994 List of elements for Headlamp Washer Wiring Diagram for Lexus LS 400 1994: 43 headlight cleaner relay (left front of eng compt) (left i/p brace) (left kick panel) (right kick panel) 10a 20a 40a 7.5a A11 Am1 fusible link B10 B11 B13 Combination switch Daytime running light relay (left side of i/p) Dimmer switch Flash Fusible link box (left side of eng) G200 G202 G203 Gauge fuse Head Headlight cleaner motor (left front of eng compt) Headlight cleaner switch (center of i/p) Headlight relay Headlights system High Hot at all times Hot in run Hot with taillight relay energized Integration relay (in j/b 1, left side of i/p) J 2 junction connector (behind left side of i/p) J/b 1 (left side of steering column) J/b 2 (left side of eng compt) J/b 4 (behind combi- nation meter) Light control switch Off Panel fuse Red Tail Timer Wiper fuse
