ENGINE PERFORMANCE – Lexus SC 430 2009 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.3L

4.3L, Engine Performance Wiring Diagram (1 of 6) for Lexus SC 430 2009

List of elements for 4.3L, Engine Performance Wiring Diagram (1 of 6) for Lexus SC 430 2009:

• (left kick panel) driver side j/b ecu
• (left side of dash) stop light switch
• +b1
• Accel pedal position sensor (left center of dash)
• Acmg
• Air conditioning system
• B13
• B16
• Bat
• Batt
• Canh
• Canl
• Center j/b (right center of dash)
• Combination meter
• Computer data lines system
• Cooling fans system
• D12
• Data link connector 3 (left side of dash)
• Ect pwr ind
• Ect snow ind
• Engine control module (ecm) (left side of engine compt)
• Epa
• Epa2
• Fpr
• Ht1b
• Ht2b
• Ig+
• Igsw
• Ih (under steering column)
• Imi
• Imo
• Mil ind
• Mpmp
• Mpx+b
• Mrel
• O1b-
• O2b-
• Ox1b
• Ox2b
• Pnk
• Ppmp
• Pr2
• Red
• Rfc
• S6 mpx1
• Skid control ecu (left end of dash)
• Sp1
• Spd
• Speedometer
• Sta
• Stp
• Stpi
• Stpo
• Tac
• Tach
• Tachometer
• Tam
• Vcp2
• Vcpa
• Vpa
• Vpa2
• Vpmp

4.3L, Engine Performance Wiring Diagram (2 of 6) for Lexus SC 430 2009

List of elements for 4.3L, Engine Performance Wiring Diagram (2 of 6) for Lexus SC 430 2009:

• (left side of dash) transponder key computer
• Cir opn relay
• D-ig fuse 10a
• Driver side j/b (left kick panel)
• Ed (rear of left fender)
• Efi fuse 25a
• Efi relay
• Efii
• Efio
• Engine room 1 r/b (right side of engine compt)
• Engine room 2 r/b (left side of engine compt)
• Etcs fuse 15a
• F/ pmp relay
• F16
• Fuel pump & sender (in fuel tank)
• Fuel pump resistor (left rear of engine compt)
• Hot at all times
• Hot in on or start
• Ign fuse 5a
• J/c j17 (left rear of luggage compt)
• J/c j2 (engine room 2 r/b)
• J/c j3 (engine room 2 r/b) a
• Obd fuse 7.5a
• Red
• Stop fuse 5a

4.3L, Engine Performance Wiring Diagram (3 of 6) for Lexus SC 430 2009

List of elements for 4.3L, Engine Performance Wiring Diagram (3 of 6) for Lexus SC 430 2009:

• (engine room 2 r/b) j/c j2
• (left side of engine compt) engine room 2 r/b
• Acc
• Efi 2 fuse 10a
• Ekn2
• Eknk
• Engine control module (ecm) (left side of engine compt)
• Hot at all times
• Ignition switch
• Knk1
• Knk2
• Knock sensor (bank 1)
• Knock sensor (bank 2)
• Lock
• Mol
• Mops
• Nca
• Nsw
• Oil pressure switch (left front side of engine)
• Red
• Short pin 1
• Short pin 2
• Sp2+
• Sp2-
• Start
• Starter fuse 7.5a
• Starter relay
• Vehicle speed sensor (electronically controlled transmission) (on transmission)

4.3L, Engine Performance Wiring Diagram (4 of 6) for Lexus SC 430 2009

List of elements for 4.3L, Engine Performance Wiring Diagram (4 of 6) for Lexus SC 430 2009:

• (left kick panel) driver side j/b
• (on transmission) park/neutral position switch
• (right front of engine) engine oil level sensor
• (right kick panel) passenger side j/b
• C14
• Canister pressure sensor
• Canister pump module (rear of vehicle chassis)
• Eb (right side of cylinder head)
• Ec (left side of cylinder head)
• F14
• F15
• Gnd
• Ih (under steering column)
• J/c j23
• J/c j24
• J/c j4 & j5 (in ecu box)
• J/c j4 (in ecu box)
• Leak detection pump
• Level
• Nca
• P/n
• Sgnd
• Temp
• Vcc
• Vent valve
• Vout

4.3L, Engine Performance Wiring Diagram (5 of 6) for Lexus SC 430 2009

List of elements for 4.3L, Engine Performance Wiring Diagram (5 of 6) for Lexus SC 430 2009:

• (injectors 1, 2, 4, 6 & 8: top right of engine) (injectors 3, 5 & 7: top left of engine) fuel injectors
• (top rear of engine)
• E2g
• Engine coolant temperature sensor (top right side of engine)
• Engine room 2 r/b (left side of engine compt)
• Heated oxygen sensor (bank 1 sensor 1) (left exhaust manifold)
• Heated oxygen sensor (bank 1 sensor 2) (exhaust system, near catalytic converter)
• Heated oxygen sensor (bank 2 sensor 1) (right exhaust manifold)
• Heated oxygen sensor (bank 2 sensor 2) (exhaust system, near catalytic converter)
• Hot in on or start
• Inj fuse 10a
• J/c j23
• Mass airflow (maf) meter (right side of engine compt)
• Nca
• Tha
• Vsv (acis) (top right rear of engine)
• Vsv (purge)

4.3L, Engine Performance Wiring Diagram (6 of 6) for Lexus SC 430 2009

List of elements for 4.3L, Engine Performance Wiring Diagram (6 of 6) for Lexus SC 430 2009:

• (right side of cylinder head) eb
• (top left side of engine)
• (top right side of engine)
• +bm
• Acis
• Air conditioning system
• Camshaft position sensor (left front of engine)
• Crankshaft position sensor (left front of engine)
• E01
• E02
• E03
• E2g
• Eb (right side of cylinder head)
• Engine control module (ecm) (left side of engine compt)
• G2-
• Ge01
• Ht1a
• Ht2a
• Igf
• 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
• Igt
• Igt1
• Igt2
• Igt3
• Igt4
• Igt5
• Igt6
• Igt7
• Igt8
• Inj 1
• Inj 2
• Inj 3
• Inj 4
• Inj 5
• Inj 6
• Inj 7
• Inj 8
• J/c j23
• J/c j23 & j24
• J23
• J24
• Lcki
• Left camshaft timing oil control valve (top left of engine)
• Left vvt sensor (top left side of engine)
• Me01
• Nca
• Ne+
• Ne-
• O1a-
• O2a-
• Oc1+
• Oc1-
• Ocr+
• Ocr-
• Ox1a
• Ox2a
• Prg
• Red
• Right camshaft timing oil control valve (top right of engine)
• Right vvt sensor (top right side of engine)
• Starting/charging system
• Tha
• Throttle body assembly (top center of engine)
• Thw
• Vta
• Vta1
• Vta2
• Vv1+
• Vv1-
• Vv2+
• Vv2-