ENGINE PERFORMANCE – Lexus IS 300 2001 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.0L

3.0L, Engine Performance Wiring Diagrams (1 of 5) for Lexus IS 300 2001

List of elements for 3.0L, Engine Performance Wiring Diagrams (1 of 5) for Lexus IS 300 2001:

• (on left side of engine compt, on strut tower) fuel pump resistor
• +b2
• +bm
• A/c control assembly
• A/c system
• A/t shift main switch (integral to combination switch)
• A12 snow
• Acmg
• Anti-theft system (engine immobilizer circuit)
• Batt
• Ccs
• Circuit opening relay
• Code
• Computer data lines system
• Cooling fans system
• Cruise control system
• Driver side j/b
• Ecc
• Efi fuse 25a
• Electronically controlled transmission pattern select switch
• Eng+
• Eng-
• Engine control module (ecm) (on left front of engine compt, in protective case)
• Engine room r/b 1 (on right rear of engine compt)
• Engine room r/b 3 (on left side of engine compt)
• Eom
• Etcs fuse 15a
• Fan
• Fpr
• Fuel pump & sender (beneath left side of vehicle)
• Fuel pump relay
• G104 (rear of left front fender)
• G203 (behind right kick panel)
• G414
• Hot at all times
• Hot in on or start
• Htl2
• Htr2
• Ign fuse 7.5a
• Igsw
• Imld
• J/c 15 (behind left rear fenderwell)
• Ksw
• Mpx-
• Mpx1
• Mpx2
• Mrel
• Neo
• Oxl2
• Oxr2
• Passenger side j/b (behind lower right end of dash)
• Pnk
• Pre
• Ptnk
• Pwr
• Rxck
• Sftd
• Sftu
• Sil
• Snow
• St1-
• Sta
• Stp
• Tam
• Tbp
• Trc+
• Trc-
• Txct
• Wfse

3.0L, Engine Performance Wiring Diagrams (2 of 5) for Lexus IS 300 2001

List of elements for 3.0L, Engine Performance Wiring Diagrams (2 of 5) for Lexus IS 300 2001:

• (behind left end of dash) abs & traction ecu
• (behind lower lower right end of dash) passenger side j/b
• (on left side of engine compt, near ecm) j/c 3
• A18
• A19
• B11
• Combination meter
• Data link connector 1 (on left front of engine compt, near engine room r/b 3)
• Data link connector 3 (behind lower left side of dash)
• Driver side j/b (behind lower left end of dash)
• E4 (engine harn, in ecu box)
• Efi relay
• Eng+
• Eng-
• Engine oil level sensor (on lower left front of engine)
• Engine oil pressure switch (on left front of engine)
• Engine room r/b 2 (on right rear of engine compt)
• G131 (on side of intake manifold)
• G203 (behind right kick panel)
• Hot at all times
• Hot in on or start
• Hot in start
• J/c 16 (above right rear fenderwell)
• Level
• Neo
• Park/neutral position switch (on right side of transmission)
• Passenger side j/b (behind lower right end of dash)
• Pnk
• Sil
• Sp1
• Starter fuse 7.5a
• Stop fuse 15a
• Stoplight switch (above brake pedal, on bracket)
• Temp
• Trc+
• Trc-
• Vsv (pressure switching valve) (beneath center rear of vehicle)
• Wfse

3.0L, Engine Performance Wiring Diagrams (3 of 5) for Lexus IS 300 2001

List of elements for 3.0L, Engine Performance Wiring Diagrams (3 of 5) for Lexus IS 300 2001:

• (engine harn, left side of engine)
• (on left side of engine compt, near ecm) j/c 1, j/c 2
• (on right side of transmission) a/t indicator light switch (integral to park/neutral position switch)
• Braided
• Driver side j/b (behind lower left end of dash)
• G131 (front side of intake manifold)
• Gauge fuse 10a
• Heated oxygen sensor (bank 1 sensor 1) (on right side of engine, on exhaust system)
• Heated oxygen sensor (bank 1 sensor 2) (on right side of engine, on exhaust system)
• Heated oxygen sensor (bank 2 sensor 1) (on right side of engine, on exhaust system)
• Heated oxygen sensor (bank 2 sensor 2) (beneath vehicle, on exhaust system)
• Hot in on or start
• J/c 1, j/c 2 (near ecm)
• J/c 7 (behind upper right side of dash)
• Mt3
• Nssd
• Pnk
• Transmission control switch (d-4) (integral to shift lock control ecu)
• Transmission control switch (l-2)
• Vsv (acis) (on left side of engine)
• Vsv (evap) (on top rear of engine)

3.0L, Engine Performance Wiring Diagrams (4 of 5) for Lexus IS 300 2001

List of elements for 3.0L, Engine Performance Wiring Diagrams (4 of 5) for Lexus IS 300 2001:

• (beneath center rear of vehicle) vapor pressure sensor
• (center rear of engine, on throttle body) accel position sensor
• (engine harn, left side of engine)
• (on left front of engine) engine coolant temperature sensor
• (on left front of engine) power steering oil pressure sensor
• (on left side of engine compt, near ecm) j/c 1, j/c 2
• (on right front of engine) vsv (canister closed valve)
• (on right side of engine compt, behind air box) mass airflow meter
• (on throttle body) throttle position sensor
• Braided
• Camshaft timing oil control valve (on left front of cyl head)
• E10
• E10 (engine harn, left side of engine)
• E8 (engine harn, left side of engine)
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• G131 (front side of intake manifold)
• G131 (on side of intake manifold)
• Gnd
• Igf
• Igniter (on left side of engine compt, on strut tower)
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• In1
• In2
• In3
• Noise filter (on left side of engine)
• Pnk
• Ptnk
• Red
• Tac
• Vcc
• Vout

3.0L, Engine Performance Wiring Diagrams (5 of 5) for Lexus IS 300 2001

List of elements for 3.0L, Engine Performance Wiring Diagrams (5 of 5) for Lexus IS 300 2001:

• (engine harn, left side of engine)
• (on left rear of transmission) vehicle speed sensor
• (on left side of transmission) o/d direct clutch speed sensor
• A/c system
• Acis
• Braided
• Camshaft position sensor (on left rear of cyl head)
• Ccv
• Charging system
• Cl+
• Cl-
• Crankshaft position sensor (on right side of engine)
• E01
• E02
• E03
• E11
• Electronically controlled transmission solenoid (on left side of transmission)
• Engine control module (ecm) (on left front of engine compt, in protective case)
• Evg
• G131 (front side of intake manifold)
• Ge01
• Htl
• Htr
• Igf
• Igt
• Igt2
• Igt3
• J/c 4 (on left side of engine compt, near ecm)
• Knk1
• Knk2
• Knock sensor 1 (on left front of engine block)
• Knock sensor 2 (on left rear of engine block)
• Lck1
• Me01
• Mol
• Mops
• Nco+
• Nco-
• Ne-
• Ocv+
• Ocv-
• Oil
• Oxl1
• Oxr1
• Pnk
• Prg
• Psp
• Red
• Sln+
• Sln-
• Slt+
• Slt-
• Slu+
• Slu-
• Sp2+
• Sp2-
• Tha
• Throttle control motor (on throttle body)
• Thw
• Vpa
• Vpa2
• Vta
• Vta2