Jaguar XJ (X350). Manual — part 1328

Exterior Lighting - VIN Range: H18680-
>H99999

COMPONENT LOCATION

Item

Part Number

Description

1

Direction indicator repeaters

OVERVIEW

Vehicles built from June 2007 feature direction indicator repeaters located in the exterior rear view

mirrors. The functionality and operation of the direction indicator repeaters remains the same as the

previous fender mounted items. For additional information, refer to Exterior Lighting (417-01 )

In the event of a direction indicator repeater bulb failure, the mirror glass will need to be removed.

For additional information, refer to the Owners Handbook.

Vehicles built from June 2007 also feature revised side marker lamps. The revised side marker lamps

also incorporate a reflector.

Item

Part Number

Description

1

Battery

2

Battery junction box

3

Rear power distribution box

4

LH (left-hand) rear direction indicator

CONTROL DIAGRAM

NOTE:

A = Hardwired; Y = SCP (standard corporate protocol) network.

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5

RH (right-hand) rear direction indicator

6

REM (rear electronic module)

7

FEM (front electronic module)

8

Lighting switch

9

Hazard warning switch

10

Ignition switch

11

Instrument cluster

12

RH (right-hand) front direction indicator

13

RH (right-hand) direction indicator repeater

14

LH (left-hand) front direction indicator

15

LH (left-hand) direction indicator repeater

16

Passenger junction box

PRINCIPLES OF OPERATION

The direction indicator lamps will only operate when the ignition switch is in position II. An ignition

switch status signal is transmitted to the FEM (front electronic module) from the instrument cluster

on the SCP (standard corporate protocol) network. The hazard warning lamps will operate with the

ignition switch in any position, including off.

Direction Indicators - Front

A battery feed is provided to passenger junction box relays R1A and R1B from a 100 Amp megafuse

located in the BJB (battery junction box) . Relay R1A controls operation of the RH (right-hand)

direction indicators; relay R1B controls operation of the LH (left-hand) direction indicators.

The ground path for both relays coils is controlled by the FEM (front electronic module) . The FEM

(front electronic module) switches the ground path on and off when a request for direction indicator

operation is received from the column switch or the hazard warning switch. The FEM (front

electronic module) receives this request from the instrument cluster over the SCP (standard

corporate protocol) network. When the request for direction indicator operation is withdrawn, the

FEM (front electronic module) removes the ground path from both relay coils.

Direction Indicators - Rear

A battery feed is provided to rear power distribution box relays R8B and R7A. Relay R8B controls

operation of the RH (right-hand) direction indicators; relay R7A controls operation of the LH (left-

hand) direction indicators.

The ground path for both relay coils is controlled by the REM (rear electronic module) . The REM

(rear electronic module) switches the ground path on and off when a request for direction indicator

operation is received from the column switch or the hazard warning switch. The REM (rear electronic

module) receives this request from the instrument cluster over the SCP (standard corporate

protocol) network. When the request for direction indicator operation is withdrawn, the FEM (front

electronic module) removes the ground path from both relay coils.

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