Jaguar XJ (X350). Manual — part 1390

Description and operation

Module Controlled Functions

Item

Part Number

Description

1

—

Front electronic module (FEM)

2

—

Driver door module (DDM)

3

—

Driver seat module (DSM)

4

—

Rear electronic module (REM)

5

—

Rear seat module

6

—

Multifunction voice activated module

Driver Seat Module (DSM)

The DSM is located under the driver seat.

The DSM controls the seat memory recall positions and seat functionality. <<501-10>>

Driver Door Module (DDM)

The DDM is located in the driver door behind the trim panel.

The DDM is involved with the following operations:

•

door window motor and regulator

•

exterior rear view mirror movement

•

keyless entry

•

global closing

•

drivers door locking/unlocking

Front Electronic Module (FEM)

The FEM is located behind the left-hand cowl side trim panel.

The FEM is involved with the following operations:

•

front exterior lighting

•

direction indicators

•

adjustable pedals

•

daytime running lamps

•

courtesy lighting

•

low brake fluid reservoir level

•

low windshield washer reservoir fluid level

•

low oil pressure

•

windshield wipers

•

rear view mirror electro-cromic function

Rear Electronic Module (REM)

The REM is located in the luggage compartment behind the right-hand luggage compartment side

trim panel.

The REM is involved with the following operations:

•

fuel pump

•

heated rear windshield

•

rear exterior lighting

•

luggage compartment lid release

•

inertia fuel cut off switch

•

passenger door locks

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Rear Seat Module

The rear seat module is fitted behind the rear seat, or on the ski hatch blanking plate when the rear

entertainment module is fitted.

The rear seat module is involved with the following operation:

•

manual and memory movement of electric rear seats

Multifunction Voice Activated Module

The multifunction voice activated module is located in the luggage compartment behind the left-

hand luggage compartment side trim panel. The multifunction voice activated module controls and

processes all the voice commands given by the driver, then delivers this information to the audio

unit, cellular phone, navigation and the climate control modules which then carry out these

commands.

Microphone

The microphone is used for the cellular phone and to receive voice commands for the audio unit and

climate control functions. The microphone supplies the information to the multifunction voice

control module which processes the commands and supplies the necessary information to the

correct modules.

Visual Feedback Message Center Display

This display keeps the driver informed of the function which is being selected or processed.

Audible Feedback Instrument Cluster

This audible tone informs the driver when the system is able to receive commands for processing.

Verbal Feedback Speakers

These speakers are utilized to confirm to the driver that his verbal command has been accepted and

is being processed.

Steering Wheel Control VOICE/PHONE Button

This button is automatically configured by the audio unit depending on which systems are equipped

on the vehicle. For additional information, refer to the Owner Guide.

Diagnosis and testing

Multifunction Electronic Module

Principles of Operation

For a detailed description of the Multifunction Electronic Module's, refer to the relevant Description

and Operation sections in the workshop manual.

Module Controlled Functions

Inspection and Verification

1 . Verify the customer concern.

2 . Visually inspect for obvious signs of electrical damage.

Visual Inspection Chart

Electrical

•

Fuses/Relays

•

Damaged, Loose or Corroded Connector(s)

•

Damage to Wiring Loom/Incorrect Location, Stretched or Taught

1 . If an obvious cause for an observed or reported concern is found, correct the cause (if possible)

before proceeding to the next step.

2 . If the cause is not visually evident, verify the symptom and refer to the Jaguar Approved

Diagnostic System.

DTC Index

Voice Activated Control Module

CAUTION: When probing connectors to take measurements in the course of the pinpoint

tests, use the adaptor kit, part number 3548-1358-00

NOTE:

If the control module/component is suspect and the vehicle remains under manufacturer

warranty, refer to the Warranty Policy and Procedures manual (section B1.2), or determine if

any prior approval program is in operation, prior to the installation of a new

module/component.

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