XJ (X350) V8-4.2L (2005)
Cigarette Lighter: Diagram Information and Instructions
Introduction
Introduction
Vehicle Identification Numbers (VIN)
VIN ranges are presented in the following manner:
-> VIN 123456 indicates "up to VIN 123456"; VIN 123456 -> indicates "from VIN 123456 on".
Electrical System Architecture
Power Supplies
The electrical system is a supply-side switched system. The ignition switch directly carries much of the ignition switched power supply load.
Power supply is provided via three methods:
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Direct battery power supply;
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Ignition switched power supply;
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Switched system power supply.
The "Switched System Power Supply" circuit is controlled via the FEM (Front Electronic Module) and the REM (Rear Electronic Module).
Fuse Boxes
The electrical harness incorporates three serviceable power distribution fuse boxes:
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the Front Power Distribution Fuse Box, located in the engine compartment;
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the Rear Power Distribution Fuse Box, located in the trunk.
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the Primary Junction Fuse Box, located in the front right-hand foot well.
All fuses and relays (except the trailer towing accessory kit) are located in the three fuse boxes.
Vehicle Networks
Three different networks are employed:
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CAN (Controller Area Network) for high-speed power train communications;
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SCP (Standard Corporate Protocol) network for slower speed body systems communications;
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D2B (Optical) Network for very high-speed real-time audio data transfer.
NOTE: The D2B Network is a fiber optic network with a gateway to the remaining vehicle networks via the Audio Unit. Technician access to the three
networks and the Serial Data Link is via the Data Link Connector.
Ground Studs
Circuit ground connections are made at body studs located throughout the vehicle. There are no separate power and logic grounding systems; however,
there are a certain number of components that use unique ground points.
Abbreviations and Acronyms
Abbreviations and Acronyms
The following abbreviations and acronyms are used:
A/C
Air Conditioning
APP
SENSOR Accelerator Pedal Position Sensor
APP1
Accelerator Pedal Position Sensor Element 1
APP2
Accelerator Pedal Position Sensor Element 2
ASCM
Adaptive Speed Control Module
ASM
Air Suspension Module
AUDIO
Audio Unit
AUTO
Automatic Transmission
B+
Battery Voltage
BANK 1
RH Cylinder Bank
BANK 2
LH Cylinder Bank
CAN
Controller Area Network
CCM
Climate Control Module