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Jaguar S
-
TYPE 2002.5
5
DATE OF ISSUE: March 2002 (PROVISIONAL)
Introduction
Provisional Electrical Guide Format
This Provisional Electrical Guide is an abridged version made up of two sections. The first section provides general information for and about
the use of the book and information and illustrations to aid in the location of components.
The Figure section illustrates detailed electrical circuit information for each system on the vehicle. Each Figure is identified by a Figure Number
(i.e. Fig. 01.1) and Title. The data that normally accompanies each Figure is not included in this Provisional version.
It is recommended that the user read through the front section of the book to develop a familiarity with the layout of the book and with the
system of symbols and abbreviations used. The Table of Contents should help to guide the user.
Jaguar S-TYPE Electrical System Architecture
Power Supplies
The Jaguar S-TYPE 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: direct battery power supply, ignition switched power supply, and “Switched System
Power Supply”. The “Switched System Power Supply” circuit is controlled via the GECM (General Electronic Control Module) and the RECM
(Rear Electronic Control Module). Refer to Figure 01.6 for circuit activation details.
Fuse Boxes
The electrical harness incorporates two hard-wired power distribution fuse boxes: the Front Power Distribution Fuse Box located in the engine
compartment and the Rear Power Distribution Fuse Box located in the trunk. A serviceable Primary Junction Fuse Box is located in the front
right-hand foot well. All fuses and relays (except the trailer towing accessory kit) are located in the two fuse boxes.
Vehicle Networks
The New Jaguar S-TYPE employs three different networks: a CAN (Controller Area Network) for high-speed power train communications,
an SCP (Standard Corporate Protocol) network for slower speed body systems communications, and a D2B (Optical) Network for very high-
speed “real-time” audio data transfer. 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.
S-TYPE INSTRUMENT PANEL