ENGINE PERFORMANCE – Infiniti QX4 2003 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.5L

3.5L, Engine Performance Wiring Diagram (1 of 4) for Infiniti QX4 2003

List of elements for 3.5L, Engine Performance Wiring Diagram (1 of 4) for Infiniti QX4 2003:

• (left front of engine) f44
• (on left rear of engine) iacv-aac valve
• (on top front of engine) condenser (ignition)
• Acpdcut
• Acrly
• Air conditioning system
• Arcon
• Bstsw
• Cdcv
• Crtn
• Cvbv
• Cvtcl
• Cvtcr
• Defogger & headlights systems
• E101 (under fuse & fusible link box)
• Ecm (behind center of dash)
• Evap
• F20 (left front of engine)
• F43 (left front of engine)
• Fprly
• Gnd-a
• Gnd-c
• Idle
• Ign 1
• Ign 2
• Ign 3
• Ign 4
• Ign 5
• Ign 6
• Ignition coils
• Ignsw
• Intake valve timing control solenoid valve (b1) (on top right side of engine)
• Intake valve timing control solenoid valve (b2) (on top left side of engine)
• Isc 1
• Isc 2
• Isc 3
• Isc 4
• Led
• Load
• Neut
• O2hfl
• O2hfr
• O2hrl
• O2hrr
• Power steering oil pressure switch (lower right front of engine compt, on power steering high pressure tube)
• Pwst
• Red
• Scv
• Ssoff
• Stsw
• Swirl control valve control solenoid valve (on top front of engine)
• Swirl control valve control vacuum check switch (at left rear of engine compt)
• Tacho
• Vacuum cut valve by-pass valve (left rear underside of vehicle, near fuel tank)
• Vias
• Vias control solenoid valve (on top front of engine)

3.5L, Engine Performance Wiring Diagram (2 of 4) for Infiniti QX4 2003

List of elements for 3.5L, Engine Performance Wiring Diagram (2 of 4) for Infiniti QX4 2003:

• (left rear underside of vehicle, near fuel tank) evap canister vent control valve
• (on left rear of engine) evap canister purge volume control solenoid valve
• (on lower dash panel, left of steering column) data link connector
• (right kick panel) b55
• 10u
• 16u
• Ascd control unit (behind left kick panel)
• B22 (lower rear of left rear rear quarter panel)
• Fuel tank temperature sensor (on top of fuel tank)
• Full sw
• Fuse & fusible link box (in relay box 2)
• Fuse 10a
• Fuse 15a
• Fuse 7.5a
• Fuse block (left side of dash)
• Hot at all times
• Hot in on or start
• Hot in start
• Idle sw
• Lan
• P/n
• Park/ neutral position switch (on right rear of transmission)
• Pnk
• Red
• Sens gnd
• Sens pwr
• Tacho
• Tcm (transmission control module) (behind dash, left of steering column)
• Th sens

3.5L, Engine Performance Wiring Diagram (3 of 4) for Infiniti QX4 2003

List of elements for 3.5L, Engine Performance Wiring Diagram (3 of 4) for Infiniti QX4 2003:

• (in fuel tank) fuel pump
• (in relay box 1) fuel pump relay 1
• (in relay box 2) fuel pump relay 2
• (left side of dash) m4
• (on right side of engine compt) abs actuator & electric unit
• (right front of engine compt) e41
• 17u
• 26u
• 37u
• B22 (lower rear of left rear quarter panel)
• Closed
• Combination meter
• Crankshaft position sensor (ref) (on lower right front of engine, near oil filter)
• F20 (left front of engine)
• F43 (left front of engine)
• Fuse 10a
• Fuse 15a
• Fuse block (left side of dash)
• Gnd
• Heated oxygen sensor 1 (bank 1) (on right exhaust manifold)
• Heated oxygen sensor 1 (bank 2) (on left exhaust manifold)
• Heated oxygen sensor 2 (bank 1) (on right front exhaust tube, upstream of right converter)
• Heated oxygen sensor 2 (bank 2) (on left front exhaust tube, upstream of left converter)
• Hot in on or start
• Ign
• Knock sensor (on top rear of engine, below intake manifold)
• Malfunction indicator lamp
• Meter out
• Nca
• Pnk
• Red
• Tach
• Throttle position sensor (on throttle body)
• Vsp
• Vss
• Wide open

3.5L, Engine Performance Wiring Diagram (4 of 4) for Infiniti QX4 2003

List of elements for 3.5L, Engine Performance Wiring Diagram (4 of 4) for Infiniti QX4 2003:

• (left front of engine) f20
• (left front of engine) f43
• (left rear underside of vehicle, near fuel tank) evap control system pressure sensor
• (on engine front cover, facing camshaft sprocket) camshaft position sensor (phase)
• (on front of left cyl head) intake valve timing control position sensor (b2)
• (on front of right cyl head) intake valve timing control position sensor (b1)
• (on rear of engine oil pan) crankshaft position sensor (pos)
• Adj sw
• Air conditioning system
• Avcc
• Batt
• Check
• Ecm (behind center of dash)
• Ecm relay (in relay box 2)
• Engine coolant temperature sensor (at rear of engine, on water outlet)
• F20 (left front of engine)
• F25 (left front of engine)
• Fgage+
• Fgage-
• Ftpres
• Fuel injectors
• Fuse & fusible link box (in relay box 2)
• Fuse 10a
• Fuse 7.5a
• Gnd-e
• Hot at all times
• Imline
• Inj 1
• Inj 2
• Inj 3
• Inj 4
• Inj 5
• Inj 6
• Instrument cluster system
• Intake air temperature sensor (in air duct housing)
• Kline
• Knk
• Lan
• Mass air- flow sensor (on air intake assembly, near air cleaner box)
• Nats immu (on ignition key cylinder)
• Nca
• O2sfl
• O2sfr
• O2srl
• O2srr
• Pdpres
• Phase
• Pnk
• Pos
• Qa+
• Qa-
• Red
• Ref
• Tv00
• Tvo
• Vsp
• Vtcpusl
• Vtcpusr