ENGINE PERFORMANCE – Lexus GS 300 2005 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.0L

3.0L, Engine Performance Wiring Diagram (1 of 6) for Lexus GS 300 2005

List of elements for 3.0L, Engine Performance Wiring Diagram (1 of 6) for Lexus GS 300 2005:

• (engine harn, at left rear top of engine)
• (in steering column) transponder key amplifier
• (middle of left inner fender panel)
• (right side of dash)
• +bm
• A/c system
• A/t shift main switch (integral to combination switch)
• Abs & trac & vsc ecu (behind left side of dash)
• Accelerator pedal position sensor (on right rear side of engine)
• Acmg
• Anti-theft system
• Anti-theft system (security indicator)
• Batt
• Braided
• C12
• C13
• Ccs
• Code
• Combination meter
• Computer data lines system
• Cpu
• Cruise control system
• Data link connector 3 (below left side of dash)
• Ect pwr
• Ect snow
• Eng+
• Eng-
• Engine control module (ecm) (at left side of engine compt, in ecu box)
• Eom
• Fpc
• Ht1b
• Ht2b
• Igsw
• Imld
• J/c 9 (behind left side of dash)
• Ksw
• Mil ind
• Mpx1
• Mpx2
• Mrel
• Neo
• Ox1b
• Ox2b
• Pnk
• Pre
• Ptnk
• Red
• Rxck
• Sftd
• Sftu
• Sil
• Sta
• Sti-
• Stp
• Tachometer
• Tam
• Tbp
• Trc+
• Trc-
• Txct
• Vapor pressure sensor (under left rear of vehicle)
• Vcc
• Vpa
• Vpa1
• Vpa2
• Wfse
• Wsfe

3.0L, Engine Performance Wiring Diagram (2 of 6) for Lexus GS 300 2005

List of elements for 3.0L, Engine Performance Wiring Diagram (2 of 6) for Lexus GS 300 2005:

• (behind left kick panel) j/c 7
• (behind upper right side of dash) j/c 17
• B3 (body harn, in front of left rear wheelwell)
• Braided
• Data link connector 1 (behind ecu box)
• Driver side j/b (behind left kick panel)
• Ee (under abs & trac & vsc actuator)
• Efi fuse 25a
• Efi relay
• Engine room r/b 1 (on right side of engine compt, behind strut tower)
• Etcs fuse 15a
• Fp+
• Fp-
• Fpc
• Fuel pump & sender (in fuel tank)
• Fuel pump control ecu (at left side of luggage compt)
• Gauge fuse 10a
• Hot at all times
• Hot in on or start
• Ig-
• J/c 11 (behind left side of dash)
• J/c 14 (behind left side of dash)
• J/c 20 (above left rear wheelwell)
• J/c 3, j/c 4 (in ecu box)
• Red
• Stop fuse 15a
• Stoplight switch
• Vsv (vapor pressure sensor) (under left rear of vehicle)

3.0L, Engine Performance Wiring Diagram (3 of 6) for Lexus GS 300 2005

List of elements for 3.0L, Engine Performance Wiring Diagram (3 of 6) for Lexus GS 300 2005:

• (behind left side of dash) j/c 15
• (generator) charging system
• (in ecu box) j/c 3, j/c 4
• (on transmission) park/neutral position switch
• Acc
• Braided
• Driver side j/b (behind left kick panel)
• Ed (at rear of intake manifold)
• Engine control module (ecm) (at left side of engine compt, in ecu box)
• F10
• Hot at all times
• Ht1a
• Ign fuse 5a
• Ignition switch
• Knk1
• Knk2
• Knock sensor 1 (on left front of engine)
• Knock sensor 2 (on left side of engine)
• Lock
• Mol
• Nco+
• Nco-
• O/d direct clutch speed sensor (on transmission)
• Oil
• Ox1a
• P/n
• Pnk
• Red
• Sln+
• Sln-
• Slt+
• Slt-
• Slu+
• Slu-
• Sp2+
• Sp2-
• Start
• Starter fuse 5a
• Starting system (starter relay)
• Vehicle speed sensor (on transmission)

3.0L, Engine Performance Wiring Diagram (4 of 6) for Lexus GS 300 2005

List of elements for 3.0L, Engine Performance Wiring Diagram (4 of 6) for Lexus GS 300 2005:

• (in ecu box) j/c 1
• (in ecu box) j/c 3, j/c 4
• (on left front of engine) engine oil level sensor
• (on transmission) a/t indicator light switch (integral to park/neutral position switch)
• (under center console, near selector lever) shift lock control ecu
• At4
• Atl
• Braided
• Ec (at front of intake manifold)
• Ed (at rear of intake manifold)
• Electronically controlled transmission solenoid (in transmission)
• J/c 2 (in ecu box)
• J/c 3, j/c 4 (in ecu box)
• J/c 9 (behind left side of dash)
• Level
• Nssd
• Nssl
• Oil
• Pnk
• Red
• Sln+
• Sln-
• Slt+
• Slt-
• Slu+
• Slu-
• Temp

3.0L, Engine Performance Wiring Diagram (5 of 6) for Lexus GS 300 2005

List of elements for 3.0L, Engine Performance Wiring Diagram (5 of 6) for Lexus GS 300 2005:

• (in passenger side j/b) body ecu 1
• Braided
• E2 (engine harn, left rear top of engine)
• E2g
• Ed (at rear of intake manifold)
• Electronically controlled transmission pattern select switch
• Engine coolant temperature sensor (on top left front of engine)
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• Heated oxygen sensor (bank 1 sensor 1) (on right side of engine, in exhaust manifold)
• Heated oxygen sensor (bank 1 sensor 2) (on right side of engine, in exhaust manifold)
• Heated oxygen sensor (bank 2 sensor 1) (on exhaust system, near catalytic conv)
• Heated oxygen sensor (bank 2 sensor 2) (on exhaust system, near catalytic conv)
• Ii (at right side of dash)
• Mass airflow (maf) meter (on right side of engine compt, in air intake duct)
• Mpx1
• Pwr
• Red
• Snow
• Tha
• Vsv (acis) (on left rear side of engine)
• Vsv (canister closed valve) (on right side of engine)
• Vsv (evap) (on top rear of engine)

3.0L, Engine Performance Wiring Diagram (6 of 6) for Lexus GS 300 2005

List of elements for 3.0L, Engine Performance Wiring Diagram (6 of 6) for Lexus GS 300 2005:

• (at rear of intake manifold)
• (at top left front of engine) noise filter (ignition)
• (in ecu box) j/c 1
• (on left rear of engine compt) igniter
• A/c system
• Acis
• Braided
• Camshaft position sensor (on top center rear of engine)
• Camshaft timing oil control valve (on top left side of engine)
• Ccv
• Cl+
• Cl-
• Crankshaft position sensor (on right front of engine)
• E01
• E02
• E03
• E2 (engine harn, at left rear top of engine)
• E3 (engine harn, in ecu box)
• Ec (at front of intake manifold)
• Ed (at rear of intake manifold)
• Engine control module (ecm) (at left side of engine compt, in ecu box)
• Evg
• Ge01
• Gnd
• Ht2a
• Igf
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Igt
• Igt2
• Igt3
• In1
• In2
• In3
• Instrument cluster system
• Lcki
• Me01
• Mops
• Ne+
• Ne-
• Ocv+
• Ocv-
• Oil pressure switch (on left front side of engine)
• Ox2a
• Power steering oil pressure sensor (at left front of engine)
• Prg
• Psp
• Red
• Tac
• Tha
• Throttle control motor (on throttle body)
• Throttle position sensor (on throttle body)
• Thw
• Vta
• Vta2