ENGINE PERFORMANCE – Lexus LS 400 1994 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.0L

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

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

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

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