ENGINE PERFORMANCE – Lexus SC 400 1996 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.0L

4.0L, Engine Performance Wiring Diagrams (1 of 3) for Lexus SC 400 1996

List of elements for 4.0L, Engine Performance Wiring Diagrams (1 of 3) for Lexus SC 400 1996:

• center of i/p)
• #10
• #20
• #30
• #40
• #50
• #60
• #70
• (eng harn, top right front of eng)
• (eng harn, top right front of engine) e25
• (i/p harn behind glove box)
• (i/p harn, behind glove box)
• (i/p harn, behind top right dash)
• (left
• (left cyl head)
• (left cylinder head)
• (left side of engine compt)
• (left side of front fender) g100
• (on
• (on trans-
• (right
• (top left on eng)
• +b2
• Acc
• Am1
• Am2
• Bk/or
• Bu/rd
• Camshaft position sensor 1 (left front of engine)
• Camshaft position sensor 2 (right front of engine)
• Conn e12
• Crankshaft position sensor (lower left of engine)
• Cylinder
• Distributor
• E01
• E02
• E11
• E11 (engine harness, top left center of engine)
• E12
• E12 (engine harness, top center of firewall)
• E13
• E13 (engine harness, top right center of engine)
• E16
• E25
• Efi fuse 30a
• Efi main relay
• Egr1
• Egr2
• Egr3
• Engine control module (behind
• Evg
• Fuel injectors
• G1-
• G115
• G117
• G2-
• Head)
• Hot at all times
• Htl1
• Htl4
• Htr1
• Htr2
• Htl2
• I13
• I21
• I25
• I26
• I28
• I28 (i/p harn, behind center console)
• Idl1
• Idl2
• Idle air control valve (top center of engine)
• Igf
• Igf1
• Igf2
• Ign fuse 7.5a
• Igniter 1
• Igniter 2
• Ignition coil 1 (left front of eng)
• Ignition coil 2 (right front of engine)
• Ignition switch
• Igt
• Igt1
• Igt2
• Instrument cluster
• Instrument cluster system
• Isc1
• Isc2
• Isc3
• Isc4
• J/b 1 (left kick panel)
• Knk1
• Knk2
• Knock sensor 1 (left top of engine)
• Knock sensor 2 (right top of engine)
• Lock
• Mission)
• Nco
• Nco-
• Ne-
• Noise filter
• Note: splice locations e8 (engine harness, top of left front fender)
• Nsw
• O/d direct clutch speed sensor
• Oil
• On ig2
• Oxl1
• Oxl2
• Oxr1
• Oxr2
• P/n
• Park/neutral position switch transmission)
• Pnk
• Prg
• R/b 2 engine compt)
• Red
• Short connector (center rear of engine compt)
• Sln+
• Sln-
• Slu+
• Slu-
• Sp2
• Sp2-
• St fuse 7.5a
• St1
• Sta
• Start
• Starter relay
• Starting system
• Stj
• Tach
• Tha
• Thg
• Thw
• Vehicle speed sensor 2
• Vf1
• Vf2
• Vta1
• Vta2
• W/o trac

4.0L, Engine Performance Wiring Diagrams (2 of 3) for Lexus SC 400 1996

List of elements for 4.0L, Engine Performance Wiring Diagrams (2 of 3) for Lexus SC 400 1996:

• (behind
• (eng harn, front of fuse box)
• (eng harn, top left center of eng)
• (eng harn, top left rear of eng)
• (eng harn, top right center of dash)
• (i/p harn, bottom right of dash)
• (i/p harn, top center of dash) i17
• (i/p harn, top right of dash)
• (i/p harness, top right of dash)
• (left
• (on
• (on transmission)
• (right side of engine)
• (under
• (under left center pillar)
• A/t indicator lights
• A10
• A13
• A14
• A15
• Ashtray)
• C16
• D13
• E11
• E12
• E12 (eng harn, top center fire- wall)
• E13
• E14
• E15
• E16
• Egr valve (center rear of engine)
• Electronic controlled
• Electronic controlled transmission pattern select switch (on console)
• Engine compt)
• Evap valve (right side of engine compt)
• Fpc
• Fuel pressure up valve (center top of engine)
• Fuel pump
• Fuel pump ecu (under console)
• Fuse block
• G302
• Gauge fuse 10a
• H12
• Hot at all times
• Hot in on or start
• I17
• I19
• I19 (i/p harness, top right of dash)
• I25
• I26
• I28
• I29
• I29 (i/p harness, bottom center of dash)
• I9 (i/p harness, top center of dash)
• Instrument cluster
• Interior
• J/b 1 (left
• J/b 3 center of i/p)
• Kick panel)
• Left
• Lights system
• Lock-up
• Main fuse 60a
• Malf. ind. lamp
• Norm
• O/d off ind.
• Oil temp. sensor
• Out
• Park/ neutral position switch (on trans- mission)
• Pnk
• Power ind.
• Pwr
• Red
• Solenoids
• Solid state
• Speedometer
• Sub throttle position sensor
• Throttle position sensor
• Transmission
• Transmission)
• Vehicle speed sensor 1
• Vss
• W/ traction control

4.0L, Engine Performance Wiring Diagrams (3 of 3) for Lexus SC 400 1996

List of elements for 4.0L, Engine Performance Wiring Diagrams (3 of 3) for Lexus SC 400 1996:

• (behind
• (center rear
• (left
• (right front of engine compt)
• A/c
• A/d
• Acmg
• Air
• Air conditioning system
• Anti-lock brakes system (traction ecu)
• Batt
• Compt)
• Conditioning
• Conn e11
• Control
• Cruise
• Cylinder
• D10
• Data link connector 1 (center top of engine)
• Data link connector 3 (center top of engine)
• E15
• E16
• Egr gas
• Engine control module (behind center of i/p)
• Engine coolant temperature sensor (right front of engine)
• Fpc
• G115 left
• G117 (right
• G200
• Head)
• Hot at all times
• Ht1
• Ht2
• Htl2
• Htr2
• I10
• I18
• I25
• I28
• Igsw
• J/b 1 (left
• J/b 3 instrument cluster)
• Kick
• Kick panel)
• M-rel
• Main heated oxygen sensor (left bank) (left side of engine)
• Main heated oxygen sensor (right bank) (right side of engine)
• Mass air flow meter
• Neo
• O/d main switch
• Od1
• Od2
• Of engine
• Oxl1
• Oxl2
• Oxr1
• Oxr2
• Panel
• Pnk
• Red
• Sdl
• Sensor
• Sp2
• Stop fuse 15a
• Stop light switch (on brake pedal support)
• Stp
• Sub heated oxygen sensor (left bank) (bottom left of vehicle)
• Sub heated oxygen sensor (right bank) (bottom right of vehicle)
• System
• Te1
• Temperature
• Vto1
• Vto2