ENGINE PERFORMANCE – Lexus LX 470 2002 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.7L

4.7L, Engine Performance Wiring Diagrams (1 of 4) for Lexus LX 470 2002

List of elements for 4.7L, Engine Performance Wiring Diagrams (1 of 4) for Lexus LX 470 2002:

• (behind right side of dash) engine control module
• (engine harn, left side of engine)
• (engine harn, rear of engine)
• Anti-lock brakes system
• Braided
• Braided a
• Camshaft position sensor (on top left side of engine)
• Cl+
• Cl-
• Crankshaft position sensor (on left front of engine)
• E01
• E02
• E03
• E4 (engine harn, rear of engine)
• Ec (rear side of right cyl head)
• Ec (rear side of right cylinder head)
• Ed (rear side of left cyl head)
• Els4
• Evg
• Ge01
• Htl
• Htl2
• Htr
• Htr2
• Igf1
• Igf2
• Ignition coil & igniter 1
• Ignition coil & igniter 2
• Ignition coil & igniter 3
• Ignition coil & igniter 4
• Ignition coil & igniter 5
• Ignition coil & igniter 6
• Ignition coil & igniter 7
• Ignition coil & igniter 8
• Igt1
• Igt2
• Igt3
• Igt4
• Igt5
• Igt6
• Igt7
• Igt8
• J/c 27 (behind glove box)
• Knkl
• Knkr
• Knock sensor 1 (on top left of engine block)
• Knock sensor 2 (on top right of engine block)
• Mass airflow meter (on air intake, next to air cleaner box)
• Me01
• Ne+
• Ne-
• Noise filter (ignition) (on upper left side of engine)
• Oxl1
• Oxl2
• Oxr1
• Oxr2
• Prg
• Red
• Tha
• Throttle control motor (on top left front of engine)
• Thw
• Vpa
• Vpa2
• Vsv (evap) (on left side of engine)
• Vta
• Vta2

4.7L, Engine Performance Wiring Diagrams (2 of 4) for Lexus LX 470 2002

List of elements for 4.7L, Engine Performance Wiring Diagrams (2 of 4) for Lexus LX 470 2002:

• (engine harn, left side of engine)
• (engine harn, rear of engine)
• (on left side of transmission) vehicle speed sensor (combination meter)
• A/t oil temperature sensor (on top of transmission)
• Acc
• Accel position sensor (on top front of engine)
• Am2
• B12
• Bm (rear of left quarter panel)
• Braided
• C13
• D13
• D21
• E2 (engine harn, right rear of engine compt)
• Ec (rear side of right cylinder head)
• Efi or ecd fuse 20a
• Efi or ecd relay
• Engine coolant temperature sensor (on top front of engine)
• Engine room j/b (on left inner fender panel)
• Fp+
• Fp-
• Fpc
• Fuel control switch (behind center of dash)
• Fuel pump & sender (in fuel tank)
• Fuel pump control ecu (left rear of cargo area)
• Heated oxygen sensor (bank 1, sensor 1) (on exhaust pipe, left rear of engine)
• Heated oxygen sensor (bank 2, sensor 1) (on exhaust pipe, right side of engine)
• Hot at all times
• Ig2
• Ign fuse 10a
• Ignition switch
• Injector 1
• Injector 2
• Injector 3
• Injector 4
• Injector 5
• Injector 6
• Injector 7
• Injector 8
• J/c 17 (behind right center of dash, near wind- shield)
• J/c 28 (behind glove box)
• J/c 43 (behind left side of dash)
• Left kick panel j/b
• Lock
• P/n
• P56
• Park/neutral position switch (on right side of trans)
• Red
• Right side of dash)
• Start
• Starting/charging system, instrument cluster system
• Throttle position sensor (on throttle body assembly)

4.7L, Engine Performance Wiring Diagrams (3 of 4) for Lexus LX 470 2002

List of elements for 4.7L, Engine Performance Wiring Diagrams (3 of 4) for Lexus LX 470 2002:

• (behind left center of dash)
• (behind upper right side of dash)
• (dash harn, upper right end of dash)
• (engine harn, top of transmission)
• 2nd strt ind
• A/t indicator light switch (integral to park/ neutral position switch) (on right side of trans)
• A/t oil temp ind
• A/t p
• B10
• Braided
• C14
• C15
• C16
• C17
• Combination meter
• Ec (rear side of right cylinder head)
• Ect pwr ind
• Gauge fuse 15a
• Heated oxygen sensor (bank 1, sensor 2) (on exhaust pipe, left underside of vehicle)
• Heated oxygen sensor (bank 2, sensor 2) (on exhaust pipe, right underside of vehicle)
• Hot at all times
• Hot in on or start
• J/c 14
• J/c 17 (behind right center of dash, near windshield)
• J/c 18 (behind right center of dash, near windshield)
• J/c 19 (behind right side of dash, near windshield)
• J/c 23
• J/c 28 (behind glove box)
• J/c 43 (behind left side of dash)
• Left kick panel j/b
• Malfunction indicator lamp
• O/d main switch (below center console)
• O/d off ind
• P83
• Ptnk
• Speedometer
• Stop fuse 15a
• Stoplight switch (on bracket, above brake pedal)
• Transfer l position detection switch (on right side of trans)
• Vapor pressure sensor (left rear corner of engine compt)
• Vcc

4.7L, Engine Performance Wiring Diagrams (4 of 4) for Lexus LX 470 2002

List of elements for 4.7L, Engine Performance Wiring Diagrams (4 of 4) for Lexus LX 470 2002:

• (behind left side of dash) data link connector 3
• (dash harn, left end of dash)
• (dash harn, upper right side of dash)
• (left side of transmission) o/d direct clutch speed sensor
• (left side of transmission) vehicle speed sensor
• (on right inner fender panel) data link connector 1
• (unused pins not shown)
• +b1
• +bm
• 2nd
• A/c
• A/c system (center ecu)
• Act
• Anti-lock brakes system (abs & ba & trac & vsc ecu)
• Batt
• Ccs
• Code
• Cruise control system
• D12
• Defogger system (idle-up diode)
• E10
• Ec (rear side of right cylinder head)
• Electronic suspension system
• Electronically controlled transmission pattern select switch
• Electronically controlled transmission solenoid (on left side of transmission)
• Els
• Els2
• Els3
• Eng+
• Eng-
• Engine control module (behind right side of dash)
• Engine room j/b (on left inner fender panel)
• Eom
• Fpc
• Hot at all times
• I10
• I5 (dash harn, behind combin- ation meter)
• Igsw
• Imld
• Instrument cluster system (tachometer)
• J/c 11 (behind upper left center of dash)
• J/c 17 (behind right center of dash, near windshield)
• J/c 21 (behind upper right side of dash)
• J/c 22 (behind upper right side of dash)
• Ksw
• Left kick panel j/b
• Mrel
• Nco+
• Nco-
• Neo
• Nsw
• Odlp
• Odms
• Oil
• Oilw
• Ptnk
• Pwr
• Red
• Rxck
• Sil
• Slt+
• Slt-
• Snwi
• Snwl
• Sp2+
• Sp2-
• Spd
• St1-
• Sta
• Stp
• Tach
• Tfn
• Throttle fuse 15a
• Thwo
• Tpc
• Transfer neutral position detection switch (on right side of trans)
• Transponder key amplifier (in steering column)
• Trc+
• Trc-
• Txct
• Unlock warning switch
• Vsv (vapor pressure sensor) (in left rear corner of engine compt)
• Wfse