ENGINE PERFORMANCE – Lexus SC 430 2010 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.3L

4.3L, Engine Performance Wiring Diagram (1 of 6) for Lexus SC 430 2010

List of elements for 4.3L, Engine Performance Wiring Diagram (1 of 6) for Lexus SC 430 2010:

• (left kick panel) driver side j/b ecu
• (right kick panel) passenger side j/b
• +b1
• Accel pedal position sensor (left center of dash)
• Acmg
• Air conditioning system
• Anti-theft system
• B13
• Batt
• Canh
• Canl
• Ccs
• Center j/b (right center of dash)
• Combination meter
• Computer data lines system
• Cooling fans system
• Cruise control system
• D12
• D20
• Ect pwr ind
• Ect snow ind
• Engine control module (ecm) (left side of engine compt)
• Epa
• Epa2
• F15
• F16
• Fpr
• Ht1b
• Ht2b
• Ig (center of dash)
• Ig+
• Igsw
• Ih (under steering column)
• Imi
• Imo
• Interior lights system
• J/c j2 (engine room 2 r/b)
• Mil ind
• Mpmp
• Mrel
• O1b-
• O2b-
• Ox1b
• Ox2b
• Pnk
• Ppmp
• Pr2
• Red
• Rfc
• Sftd
• Sftu
• Spd
• Speedometer
• St1-
• Sta
• Starting/charging system
• Stp
• Stpi
• Stpo
• Tach
• Tachometer
• Tam
• Transmission control switch
• Vcp2
• Vcpa
• Vpa
• Vpa2
• Vpmp

4.3L, Engine Performance Wiring Diagram (2 of 6) for Lexus SC 430 2010

List of elements for 4.3L, Engine Performance Wiring Diagram (2 of 6) for Lexus SC 430 2010:

• (engine room 2 r/b) j/c j3
• (in ecu box) j/c j5
• Cir opn relay
• D-ig fuse 10a
• Driver side j/b (left kick panel)
• Ed (rear of left fender)
• Efi fuse 25a
• Efi relay
• 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
• Fuel pump & sender (in fuel tank)
• Fuel pump resistor (left rear of engine compt)
• Hot at all times
• Hot in on or start
• I16
• Ign fuse 5a
• J/c j17 (left rear of luggage compt)
• Red
• Stop fuse 5a
• Stop light switch (left side of dash)

4.3L, Engine Performance Wiring Diagram (3 of 6) for Lexus SC 430 2010

List of elements for 4.3L, Engine Performance Wiring Diagram (3 of 6) for Lexus SC 430 2010:

• (engine room 2 r/b) j/c j2
• (in transmission) electronically controlled transmission solenoid
• Efi 2 fuse 10a
• Ekn2
• Eknk
• Engine control module (ecm) (left side of engine compt)
• Engine room 2 r/b (left side of engine compt)
• Eoil
• Knk1
• Knk2
• Knock sensor (bank 1)
• Knock sensor (bank 2)
• Mol
• Mops
• Nca
• Nsw
• Nt+
• Nt-
• Oil
• Oil pressure switch (left front side of engine)
• Red
• Sl1+
• Sl1-
• Sl2+
• Sl2-
• Slt+
• Slt-
• Slu+
• Slu-
• Sp2+
• Sp2-
• Turbine speed sensor (on transmission)
• Vehicle speed sensor (electronically controlled transmission) (on transmission)

4.3L, Engine Performance Wiring Diagram (4 of 6) for Lexus SC 430 2010

List of elements for 4.3L, Engine Performance Wiring Diagram (4 of 6) for Lexus SC 430 2010:

• (left kick panel) driver side j/b
• (on transmission) park/neutral position switch
• (right front of engine) engine oil level sensor
• C14
• Canister pressure sensor
• Canister pump module (rear of vehicle chassis)
• D n
• Eb (right side of cylinder head)
• Ec (left side of cylinder head)
• Engine room 2 r/b (left side of engine compt)
• F14
• Gnd
• Hot in on or start
• Inj fuse 10a
• J/c j23
• J/c j24
• J/c j4 & j5 (in ecu box)
• Leak detection pump
• Level
• N r
• Nca
• Red
• Sgnd
• Temp
• Vcc
• Vent valve
• Vout
• Vsv (acis) (top right rear of engine)

4.3L, Engine Performance Wiring Diagram (5 of 6) for Lexus SC 430 2010

List of elements for 4.3L, Engine Performance Wiring Diagram (5 of 6) for Lexus SC 430 2010:

• (2, 4, 6 & 8: top right of engine) (1, 3, 5 & 7: top left of engine) fuel injectors
• (top right side of engine)
• E2g
• Eb (right side of cylinder head)
• Engine coolant temperature sensor (top right side of engine)
• Gnd
• 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)
• Igf
• Ignition coil & igniter 2
• Ignition coil & igniter 4
• Ignition coil & igniter 6
• Ignition coil & igniter 8
• Igt
• Mass airflow (maf) meter (right side of engine compt)
• Nca
• Red
• Right bank ignition noise filter
• Tha
• Vsv (purge) (top rear of engine)

4.3L, Engine Performance Wiring Diagram (6 of 6) for Lexus SC 430 2010

List of elements for 4.3L, Engine Performance Wiring Diagram (6 of 6) for Lexus SC 430 2010:

• (right side of cylinder head) eb
• (top left 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)
• Ec (left side of cylinder head)
• Engine control module (ecm) (left side of engine compt)
• G2-
• Ge01
• Gnd
• Ht1a
• Ht2a
• Igf
• Igf1
• Igf2
• Ignition coil & igniter 1
• Ignition coil & igniter 3
• Ignition coil & igniter 5
• Ignition coil & igniter 7
• 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 j24
• Lcki
• Left bank ignition noise filter
• 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-