ENGINE PERFORMANCE – Lexus GS 300 1999 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.0L

3.0L, Engine Performance Wiring Diagrams (1 of 4) for Lexus GS 300 1999

List of elements for 3.0L, Engine Performance Wiring Diagrams (1 of 4) for Lexus GS 300 1999:

• (behind left side of dash)
• (engine harn, in ecu box)
• (engine harn, left side of engine)
• (front of left front fender)
• (front side of intake manifold)
• (left front of engine) engine oil level sensor
• (rear side of intake manifold)
• (top left side of engine) camshaft timing oil control valve
• A braided
• Acis
• Air conditioning system
• Braided
• Camshaft position sensor (top center rear of engine)
• Canada
• Cl+
• Cl-
• Conn e2
• Conn e3
• Crankshaft position sensor (left front of engine)
• E01
• E02
• E03
• E2g
• Engine control module (left side of engine compt, in ecu box)
• Evg
• G100
• G131
• G131 (rear side of intake manifold)
• G202
• Ge01
• Generator
• Grd
• Ht1a
• Ht2a
• Igf
• Igniter (on left front shock tower)
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Igt
• Igt2
• Igt3
• In1
• In2
• In3
• Injector 1
• Injector 2
• Injector 3
• Injector 4
• Injector 5
• Injector 6
• Instrument cluster system (tachometer)
• J/c 2 (in ecu box)
• Knk1
• Knk2
• Knock sensor 1 (left front of engine)
• Knock sensor 2 (left side of engine)
• Lcki
• Mass airflow meter (in air intake duct)
• Me01
• Mol
• Mops
• Ne+
• Ne-
• Noise filter (top left front of engine)
• Ocv+
• Ocv-
• Oil level
• Oil pressure switch (left front side of engine)
• Oil temp
• Ox1a
• Ox2a
• Power steering oil pressure switch (left rear of engine compt)
• Prg
• Red
• Tac
• Tha
• Throttle control motor (on throttle body)
• Thw
• Usa
• Vpa
• Vpa2
• Vsv (acis) (left rear side of engine)
• Vsv (evap) (top rear of engine)
• Vta
• Vta2

3.0L, Engine Performance Wiring Diagrams (2 of 4) for Lexus GS 300 1999

List of elements for 3.0L, Engine Performance Wiring Diagrams (2 of 4) for Lexus GS 300 1999:

• (body harness, forward of left rear wheelwell)
• (engine harn, e2
• (left side of dash)
• A j/c 4
• Acc
• Accel position sensor (rear left side of engine)
• Am2
• Braided
• Driver side junction block
• Efi fuse 25a
• Efi relay
• Engine coolant temperature sensor (top left front of engine)
• Engine room relay block 1
• F10
• Fp+
• Fp-
• Fpc
• Fuel pump (in fuel tank)
• Fuel pump control ecu (left side of luggage compartment)
• G104 (left rear corner of engine compt)
• G131 (rear side of intake manifold)
• Heated oxygen sensor (bank 1 sensor 1) (on left side of engine, in exhaust manifold)
• Heated oxygen sensor (bank 2 sensor 1) (on right side of engine, in exhaust manifold)
• Hot at all times
• Ig2
• Ign fuse 5a
• Ignition switch
• J/c 14 (behind left side of dash)
• J/c 15 (behind left side of dash)
• J/c 2 (behind right side of dash)
• J/c 20 (left quarter panel)
• J/c 3
• J/c 5 (in engine room relay block 2)
• Left side of engine)
• Lock
• P/n
• Park/neutral position switch (on transaxle)
• Red
• St2
• Start
• Starter fuse 5a
• Starting/ charging system
• Throttle position sensor (on throttle body)

3.0L, Engine Performance Wiring Diagrams (3 of 4) for Lexus GS 300 1999

List of elements for 3.0L, Engine Performance Wiring Diagrams (3 of 4) for Lexus GS 300 1999:

• (behind center of dash) a/c control assembly
• (behind left side of dash)
• (behind right side of dash)
• (in ecu box)
• (under center console) shift lock control ecu
• A/t indicator light switch (integral to park/neutral position switch) (on transmission)
• A/t p
• At4
• Atl
• B j/c 4
• Body ecu 1 (in passenger side junction block)
• Braided
• Braided f
• C12
• Combination meter
• Cpu
• Driver side junction block
• E braided
• E j/c 4
• E2 (engine harn, left side of engine)
• Ect pwr
• Ect snow
• Electronically controlled transmission pattern select switch
• Except navigation
• G131 (front side of intake manifold)
• G201
• Gauge fuse 10a
• H12
• Heated oxygen sensor (bank 1 sensor 2) (on exhaust system, near catalytic converter)
• Heated oxygen sensor (bank 2 sensor 2) (on exhaust system, near catalytic converter)
• Hot at all times
• Hot in on or start
• J/c 1 (in ecu box)
• J/c 11 (behind left side of dash)
• J/c 17 (behind right side of dash)
• J/c 3
• J/c 3 (in ecu box)
• J/c 4
• J/c 6 (left kick panel)
• J/c 7 (behind left kick panel)
• J/c 9 (behind left side of dash)
• Malfunction indicator light
• Mpx+
• Mpx-
• Mpx1
• Mpx2
• Multi- display
• Navigation
• Nssd
• Nssl
• Obd fuse 7.5a
• Ptnk
• Pwr
• Red
• Snow
• Stop fuse 15a
• Stoplight switch (on brake pedal bracket)
• Tilt & telescopic ecu (left side of dash)
• Vapor pressure sensor (under left rear of vehicle)
• Vcc

3.0L, Engine Performance Wiring Diagrams (4 of 4) for Lexus GS 300 1999

List of elements for 3.0L, Engine Performance Wiring Diagrams (4 of 4) for Lexus GS 300 1999:

• (behind ecu box) data link connector 1
• (behind left side of dash) data link connector 3
• (behind right side of dash)
• (on transmission) o/d direct clutch speed sensor
• (or pnk) (or pnk) (or pnk)
• (unused pins not shown)
• Abs & trac & vsc ecu (behind left side of dash)
• Acmg
• Air conditioning system
• Anti-theft system (security indicator)
• Bat
• Batt
• Braided
• Ccs
• Code
• Conn e4
• Conn e5
• Conn e6
• Conn e7
• Cruise control system
• Electronically controlled transmission solenoid (in transmission)
• Eng+
• Eng-
• Engine control module (left side of engine compt, in ecu box)
• Engine room relay block 1
• Eng_
• Eom
• Etcs fuse 15a
• F13
• Fpc
• G100 (front of left front fender)
• G131 (rear side of intake manifold)
• G201
• G201 (behind right side of dash)
• Grd
• Hot at all times
• Ht1b
• Ht2b
• Igsw
• Imld
• J/c 10 (behind left side of dash)
• J/c 2 (in ecu box)
• J/c 6 (left kick panel)
• J/c 9 (behind left side of dash)
• Ksw
• Mpx1
• Mpx2
• Mrel
• Nco+
• Nco-
• Neo
• Oil
• Ox1b
• Ox2b
• Passenger side junction block
• Pnk
• Pre
• Ptnk
• Red
• Rxck
• Sil
• Sln+
• Sln-
• Slt+
• Slt-
• Slu+
• Slu-
• Sp2+
• Sp2-
• Sta
• Sti-
• Stp
• Tam
• Tpc
• Transponder key amplifier (behind left side of dash)
• Trc+
• Trc-
• Txct
• Unlock warning switch (behind left side of dash)
• Vehicle speed sensor (on transmission)
• Vsv (vapor pressure sensor) (under left rear of vehicle)