Jaguar XJ (X350). Service manual — part 1371

MICROPHONE

The microphone is located in the overhead console which surrounds the front interior lamp. The

microphone is hardwired to the IAM.

CONTROL SWITCHES

Item

Part Number

Description

1

Answer call or dial switch

2

Volume up/down

3

Mode select button

4

Menu previous/next button

The steering wheel mounted telephone control switches are located on the RH side of the steering

wheel. The switches are a resistive ladder type which return a different voltage to the ICM in

response to different switches being pressed.

BLUETOOTH ANTENNA

The bluetooth antenna is located on the LH (left-hand) side of the rear parcel shelf. The antenna is

used to connect the telephone control module to a Bluetooth compatible phone.

TELEPHONE VOICE CONTROL

The vehicle system is able to use any voice tags which are stored in the mobile telephone. There is no

voice dialing feature of the cellular telephone system.

Voice dialing is accessed via a long press of the RH rotary ENTER button. The ICM displays that Voice

tag dialing is in progress and an audible prompt is generated from th e telephone control module.

After the prompt the handset waits several seconds for the voice command.

PRINCIPLES OF OPERATION

The phone system is controlled from the ICM and/or the steering wheel mounted switches. Control

signals from the steering wheel switches are sent via the clock spring and the steering wheel module

to the ICM. The ICM sends control signals on the D2B ring to the telephone control module. Audio is

sent on the D2B ring to the audio amplifier and is output on the vehicle speaker system.

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Item

Part Number

Description

1

Steering wheel mounted control switches

2

CJB (central junction box)

3

Ignition switch

4

BJB (battery junction box)

5

Speakers

6

Audio amplifier

7

Voice recognition control module

CONTROL DIAGRAM

NOTE:

A = Hardwired; Z = D2B

8

Microphone

9

Bluetooth antenna

10

Integrated audio module (IAM)

11

Clockspring

12

Telephone control module

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