All Wiring Diagrams for Lexus LS 400 1994 model

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:

(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

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List of elements for A/C Wiring Diagram (2 of 2) for Lexus LS 400 1994:

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

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List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control for Lexus LS 400 1994:

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

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List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control (1 of 2) for Lexus LS 400 1994:

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

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List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control (2 of 1) for Lexus LS 400 1994:

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

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List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control (2 of 2) for Lexus LS 400 1994:

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

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List of elements for Anti-lock Brake Wiring Diagrams, without Traction Control for Lexus LS 400 1994:

(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

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List of elements for Computer Data Lines for Lexus LS 400 1994:

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

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List of elements for Cooling Fan Wiring Diagram for Lexus LS 400 1994:

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

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List of elements for Cruise Control Wiring Diagram for Lexus LS 400 1994:

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

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List of elements for Defogger Wiring Diagram for Lexus LS 400 1994:

(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

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List of elements for Electronic Power Steering Wiring Diagram for Lexus LS 400 1994:

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

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List of elements for Power Tilt Steering Column Wiring Diagram for Lexus LS 400 1994:

(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

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List of elements for Electronic Suspension Wiring Diagram (1 of 2) for Lexus LS 400 1994:

-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

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List of elements for Electronic Suspension Wiring Diagram (2 of 2) for Lexus LS 400 1994:

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 (1 of 3) for Lexus LS 400 1994

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List of elements for 4.0L, Engine Performance Wiring Diagrams (1 of 3) for Lexus LS 400 1994:

#10
#20
#30
#40
(behind
(calif. only)
(front side of left fender)
(left
(on
(rear side
(rear side of left cylinder head)
(right rear of trunk)
(top center of engine)
(under right rear pillar)
+b1
+b2
A/d
A13
Acc
Acmg
Air conditioning system
Air pump valve (left rear of engine)
Airv
Am2
Anti- lock brakes system
Atrp
Batt
C2-
Conn a
Conn b
Cruise control system
Cylinder head)
Distri- butor
E02
Efi fuse 20a
Efi main relay
Egr valve
Egr1
Egr2
Egr3
Egr4
Electronic suspension system
Engine compt)
Engine control module (behind glove box)
Eo1
Eo3
Evap valve (left rear of engine)
Fpc
Fuel
Fuel pressure up valve (left side of engine)
Fuel pump
Fuel pump ecu
G100
G114
G117
G14
G203 (right kick panel)
G905
Hot at all times
Hot in on or start
Hot in start
Idl1
Idl2
Idle air control valve (top center of engine)
Ig2
Igf
Igf1
Igf2
Ign fuse 10a
Igniter no.1 (right side of engine compt)
Igniter no.2 (right side of engine compt)
Ignition coil no.1 (left front of engine)
Ignition coil no.2 (right front of engine)
Ignition switch
Igsw
Igt
Igt1
Igt2
Injectors
Isc1
Isc2
Isc3
Isc4
J/b 1
J/b 2
J/c 2 left i/p)
Kick down
Left side
Lock
M-rel
Neo
Nsw
Od1
Od2
Of i/p)
Of right
Oxl2
Oxr2
Pag
Park/neutral position switch (on transmission) (closed in park & neutral)
Pwr
R/b 4 (behind right side of i/p)
R/b 7
Red
Sln-
Slu-
Spd
St fuse 7.5a
Sta
Start
Starting
Stop fuse 25a
Stop light switch
Switch
System
Tac
Thg
Trans- mission)
Vf1
Vf2
Vto1
Vto2
W/ traction control
W/o traction control

4.0L, Engine Performance Wiring Diagrams (2 of 3) for Lexus LS 400 1994

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List of elements for 4.0L, Engine Performance Wiring Diagrams (2 of 3) for Lexus LS 400 1994:

(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

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List of elements for 4.0L, Engine Performance Wiring Diagrams (3 of 3) for Lexus LS 400 1994:

(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

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List of elements for Exterior Light Wiring Diagram (1 of 2) for Lexus LS 400 1994:

(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

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List of elements for Exterior Light Wiring Diagram (2 of 2) for Lexus LS 400 1994:

(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

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List of elements for Ground Distribution Wiring Diagram (1 of 5) for Lexus LS 400 1994:

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

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List of elements for Ground Distribution Wiring Diagram (2 of 5) for Lexus LS 400 1994:

(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

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List of elements for Ground Distribution Wiring Diagram (3 of 5) for Lexus LS 400 1994:

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

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List of elements for Ground Distribution Wiring Diagram (4 of 5) for Lexus LS 400 1994:

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

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List of elements for Ground Distribution Wiring Diagram (5 of 5) for Lexus LS 400 1994:

(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

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List of elements for Headlight Wiring Diagram, with DRL for Lexus LS 400 1994:

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

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List of elements for Headlight Wiring Diagram, without DRL for Lexus LS 400 1994:

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

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List of elements for Horn Wiring Diagram for Lexus LS 400 1994:

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

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List of elements for Instrument Cluster Wiring Diagram (1 of 2) for Lexus LS 400 1994:

(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

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List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Lexus LS 400 1994:

(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

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List of elements for Courtesy Lamp Wiring Diagram for Lexus LS 400 1994:

(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

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List of elements for Instrument Illumination Wiring Diagram for Lexus LS 400 1994:

(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

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List of elements for Memory Mirrors Wiring Diagram for Lexus LS 400 1994:

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

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List of elements for Memory Power Tilt & Power Telescopic Wiring Diagram for Lexus LS 400 1994:

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

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List of elements for Memory Seat Wiring Diagram (1 of 2) for Lexus LS 400 1994:

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

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List of elements for Memory Seat Wiring Diagram (2 of 2) for Lexus LS 400 1994:

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

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List of elements for Electric Tension Reducer Wiring Diagram for Lexus LS 400 1994:

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

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List of elements for Power Shoulder Belt Anchorage Wiring Diagram for Lexus LS 400 1994:

(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

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List of elements for Power Antenna Wiring Diagram for Lexus LS 400 1994:

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

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List of elements for Power Distribution Wiring Diagram (1 of 5) for Lexus LS 400 1994:

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

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List of elements for Power Distribution Wiring Diagram (2 of 5) for Lexus LS 400 1994:

(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

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List of elements for Power Distribution Wiring Diagram (3 of 5) for Lexus LS 400 1994:

(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

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List of elements for Power Distribution Wiring Diagram (4 of 5) for Lexus LS 400 1994:

(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

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List of elements for Power Distribution Wiring Diagram (5 of 5) for Lexus LS 400 1994:

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

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List of elements for Keyless Entry & Anti-Theft Wiring Diagram (1 of 2) for Lexus LS 400 1994:

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

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List of elements for Keyless Entry & Anti-Theft Wiring Diagram (2 of 2) for Lexus LS 400 1994:

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

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List of elements for Photochromic Mirror Wiring Diagram for Lexus LS 400 1994:

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

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List of elements for Power Mirror Wiring Diagram for Lexus LS 400 1994:

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

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List of elements for Power Seat Wiring Diagrams for Lexus LS 400 1994:

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

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List of elements for Moonroof Wiring Diagram for Lexus LS 400 1994:

(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

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List of elements for Power Window Wiring Diagram for Lexus LS 400 1994:

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

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List of elements for Radio Wiring Diagrams, Nakamichi for Lexus LS 400 1994:

(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

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List of elements for Radio Wiring Diagrams, Pioneer for Lexus LS 400 1994:

(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

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List of elements for Shift Interlock Wiring Diagram for Lexus LS 400 1994:

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

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List of elements for Charging Wiring Diagram for Lexus LS 400 1994:

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

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List of elements for Starting Wiring Diagram for Lexus LS 400 1994:

(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

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List of elements for Supplemental Restraint Wiring Diagram for Lexus LS 400 1994:

+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

Transmission Wiring Diagram for Lexus LS 400 1994

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List of elements for Transmission Wiring Diagram for Lexus LS 400 1994:

(behind left side of i/p)
(below left side of i/p)
(lock-up) no.3
(on throttle body)
+b1
1dl1
A/t oil temp. sensor
A13
Batt
Bf7
C 1995 vftc
Conn a
Conn b
Conn c
Conn d
Crankshaft position sensor (front of engine)
Cruise control ecu (left side of i/p, left of steering column)
Data link connector 1 (check connector) (left side of engine)
Data link connector 2 (tdcl) (behind left side of i/p)
Ect
Efi fuse 20a
Efi main relay
Electronic controlled transmission pattern select switch
Electronic controlled transmission solenoid (in transmission valve body)
Engine control module (engine & electronic controlled transmission ecu) (behind right side of i/p)
Engine controls system (igniters no.1 & no.2)
Engine coolant temp. sensor (top right front of engine)
Eo1
Eo2
G1+
G101 (front side of right fender)
G114 (rear of left cylinder head)
G117 (rear of right cylinder head)
G14
G2+
G200 (left kick panel)
Gauge fuse 10a
Hot at all times
Hot in on or start
Hot in start
Idl
Idl2
Igf1
Igf2
Ign fuse 10a
Igsw
Igt1
Igt2
Instru- ment cluster system (a/t indicator light) (combi- nation meter)
Interior lights system
J/b 1 (left side of steering column tube)
J/b 2 (left side of engine compt.)
J/b 4 (behind combi- nation meter)
J/b 4 (behind combination meter)
J/c 1 (behind right side of i/p)
J/c 2 (behind left side of i/p)
Kick down switch
Mrel
Nco+
Nco-
Ne-
No. 1
No. 2
No. 4
No.1 camshaft position sensor (on camshaft pulley)
No.2 camshaft position sensor (on camshaft pulley)
Norm.
Nsw
O/d direct clutch speed sensor (top of transmission)
O/d main switch
Od1
Od2
Oil
Park/neutral position switch (neutral start switch, back-up light switch & a/t indicator switch) (on left side of transmission)
Pin a9
Pin b1
Pin c10
Pin c11
Pin c12
Pin c13
Pin c14
Pin c15
Pin c4
Pin c7
Pwr
R/b 7 (right side of j/b 1)
Red
Sln-
Slu-
Sp2+
Sp2-
Spd
St fuse 7.5a
Sta
Starting/charging system (starter relay)
Stop fuse 25a
Stop light switch (brake pedal bracket)
Sub-throttle position sensor (w/traction control)
Te1
Te2
Throttle position sensor
Thw
Vehicle speed sensor no.2 (for e.c.t) (on trans. output shaft housing)
Vf1
Vf2
Vta
Vta1
Vta2
W/ trac. ctrl.
W/o trac. ctrl
W/o trac. ctrl.
W/trac. ctrl.