ENGINE PERFORMANCE – Jaguar XJ8 2003 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.0L

4.0L, Engine Performance Wiring Diagram (1 of 4) for Jaguar XJ8 2003

List of elements for 4.0L, Engine Performance Wiring Diagram (1 of 4) for Jaguar XJ8 2003:

• (13-14 not used)
• (center of dash, on firewall)
• (early production vehicles
• (front of left front fender) em8l
• Acc
• Air assist close valve
• Air conditioning system
• Braided
• Cooling fans system
• Cruise cntrl system
• Cruise control system
• Data link connector (dlc) (on transmission tunnel)
• Ecm & tcm cooling fan
• Em16r (center of firewall)
• Em19
• Em20
• Em80
• Em81
• Em82
• Em8l (front of left front fender)
• Ems control relay
• Engine control module (right rear side of eng compt, in control module enclosure)
• Engine coolant temperature sensor (rear of eng, in top hose)
• Engine management fuse box
• Fc17l
• Fuse 10a
• Fuse 30a
• Fuse 5a
• Have wire color codes that are different from that shown. use connector pin numbers for wire identification)
• Hot at all times
• Ignition switch
• Inertia switch (behind right kick panel)
• Mass airflow sensor (rear of air cleaner)
• Nca
• Off
• P129
• P133
• P142
• P16
• Parking brake switch (in center console, assembly)
• Pedal position sensor
• Red
• Run
• Start
• Starting/ charging system
• Throttle assembly
• Throttle motor
• Throttle position sensor

4.0L, Engine Performance Wiring Diagram (2 of 4) for Jaguar XJ8 2003

List of elements for 4.0L, Engine Performance Wiring Diagram (2 of 4) for Jaguar XJ8 2003:

• (right rear of eng compt, in control module enclosure) ignition coil relay
• Brake switch (near brake pedal mounting assembly)
• Bt11
• Cc14
• Computer data lines system
• Em16r (center of firewall)
• Em8l (front of left front fender)
• Evap canister purge valve (on firewall)
• Fc17l (center of dash, on firewall)
• Fc24
• Fc29r
• Fuel pump
• Fuel pump relay 4
• Fuel tank
• Fuel tank pressure sensor (in top of fuel tank)
• Fuse 10a
• Fuse 20a
• Gear selector illumination module (in center console assembly)
• Gnd
• High power protection module
• Hot at all times
• Ignition positive relay
• Instrument pack
• Left heelboard fuse box
• Malfunction indicator lamp
• Nca
• P/n
• Power fuse 250a
• Red
• Red bt63
• Transmission rotary switch (near bracket, on top of transmission)
• Trunk fuse box
• Variable valve timing solenoid "a" bank (front of bank "a", cylinder head)
• Variable valve timing solenoid "b" bank (front of bank "b", cylinder head)

4.0L, Engine Performance Wiring Diagram (3 of 4) for Jaguar XJ8 2003

List of elements for 4.0L, Engine Performance Wiring Diagram (3 of 4) for Jaguar XJ8 2003:

• (right rear of eng compt, in control module enclosure) fuel injection relay
• (right rear of eng compt, in control module enclosure) oxygen sensor heaters relay
• (right rear of eng compt, in control module enclosure) throttle motor power relay
• Canister closed valve (under right rear of vehicle)
• Em16l (center of firewall)
• Em17 (center of firewall)
• Em8r (front of left front fender)
• Engine compartment fuse box
• Engine oil temperature sensor (on eng block, below generator)
• Fuse 10a
• Hot at all times
• Ignition coils
• Ignition positive relay
• Lf6
• Lf7
• Red

4.0L, Engine Performance Wiring Diagram (4 of 4) for Jaguar XJ8 2003

List of elements for 4.0L, Engine Performance Wiring Diagram (4 of 4) for Jaguar XJ8 2003:

• (1-2 not used)
• (3-4 not used)
• (9-12 not used)
• (early production vehicles
• (on eng, rear of bed plate) crankshaft position sensor
• (on exhaust system, near bracket on top of transmission) downstream oxygen sensor "a"
• (on exhaust system, near bracket on top of transmission) downstream oxygen sensor "b"
• (on exhaust system, near bracket on top of transmission) upstream heated oxygen sensor "a"
• (on exhaust system, near bracket on top of transmission) upstream heated oxygen sensor "b"
• (on rear "a" bank cylinder head) camshaft position sensor "a" bank
• (on rear "b" bank cylinder head) camshaft position sensor "b" bank
• (top of eng, under intake manifold)
• Braided
• Computer data lines system
• Em16l (center of firewall)
• Em83
• Em84
• Em85
• Engine control module (right rear side of eng compt, in control module enclosure)
• Fuel injectors
• Have wire color codes that are different from that shown. use connector pin numbers for wire identification)
• Knock sensor "a" bank
• Knock sensor "b" bank
• Nca
• Red