Jaguar XJ (X350). Manual — part 1372

Diagnosis and testing

Cellular Phone

Principles of Operation

For a detailed description of the Cellular Phone, refer to the relevant Description and Operation

sections in the workshop manual.

Cellular Phone - VIN Range: G00442->G45703

Inspection and Verification

1 . Verify the customer concern.

2 . Visually inspect for obvious signs of mechanical or electrical damage.

Visual Inspection Chart

Electrical

•

Fuses/relays

•

Wiring Harness For Damage And Corrosion

•

Electrical Connector(s) Loose, Damaged Or Corrosion

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, check for Diagnostic Trouble Codes (DTCs) and refer to the DTC

Index.

DTC Index

Telephone 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.

NOTE:

When performing voltage or resistance tests, always use a digital multimeter (DMM) accurate to

three decimal places and with a current calibration certificate. When testing resistance, always

take the resistance of the DMM leads into account.

NOTE:

Check and rectify basic faults before beginning diagnostic routines that involve pinpoint tests.

NOTE:

Inspect connectors for signs of water ingress, and pins for damage and/or corrosion.

NOTE:

If DTCs are recorded and, after performing the pinpoint tests, a fault is not present, an

intermittent concern may be the cause. Always check for loose connections and corroded

terminals.

DTC

Description

Possible Causes

Action

B1342

Module Internal

failure

•

Telephone control
module - internal failure

Suspect telephone control module

replace as required, refer to the new

module installation note at the top of

the DTC Index

B2103

Antenna Not

Connected

•

Telephone control
module - antenna not
connected

Refer to electrical circuit diagrams,

notes and check telephone control

module to antenna circuit

B2633

Driver-Front

Microphone

Circuit Failure

•

Telephone control
module - microphone
circuit open

Refer to electrical circuit diagrams,

notes and check telephone control

module to microphone for open circuit

B2638

Phone

rechargeable

battery fault

Incorrect battery fitted or poor

charging

Suspect handset battery fault or poor

circuit connection between handset and

holder. Refer to electrical circuit

diagrams, notes and check circuit

between holder and telephone control

module for fault, if no fault if present

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advise a new phone battery is required.

U2601

D2B (wake up

line short to

ground)

•

Telephone control
module - wake-up line
short to ground

Refer to electrical circuit diagrams,

notes and check telephone control

module (D2B) wake-up Line for short to

ground

U2609

D2B (wake-up

line pulse width

out of spec)

•

Telephone control
module - wake-up line
fault (pulse< 50mS, pulse
> 110mS)

Refer to electrical circuit diagrams,

notes and check telephone control

module - (D2B) wake-up Line circuit for

fault

U2610

D2B (Slave ECU

fails to receive a

report position)

•

During initialization no
position status report is
received from one or
more slave modules

Refer to electrical circuit diagrams,

notes and check (D2B) slave modules

and circuit for fault, replace as required,

refer to the new module installation

note at the top of the DTC Index

U2611

D2B (Slave ECU

fails to receive an

alarm clear

command)

•

Telephone control
module - on entering
alarm state, slave ECU
has failed to receive
alarm clear command

Refer to electrical circuit diagrams,

notes and check (D2B) slave modules

and circuit for fault, replace as required,

refer to the new module installation

note at the top of the DTC Index

Cellular Phone - Vehicles With: Bluetooth

Overview

This section covers the components of the Bluetooth cellular phone system.

For information on the description and operation of the Bluetooth cellular phone system :

Cellular Phone - VIN Range: G45704->H18679

For additional information on the Bluetooth cellular phone system : REFER to owner information -

Bluetooth telephone system handbook.

Inspection and Verification

NOTE:

Only cellular phones and software versions featured in the Jaguar Bluetooth approved phones

and software list can be guaranteed to operate correctly. Check the D2B ring order and circuit

integrity. Before pairing a handset to the Bluetooth phone system make sure that the

handbook for the specific handset is available.

1 . Verify the customer concern by operating the system using the customers cellular phone.

2 . Visually inspect for obvious signs of electrical damage.

Visual Inspection Chart

Electrical

•

Fuse(s)

•

Wiring harness

•

Electrical connector(s)

•

Bluetooth cellular phone

•

Microphone

•

Steering wheel control

•

Bluetooth upgrade module

•

Portable support electronics (PSE) module

•

Voice module

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 . Use the approved diagnostic system or a scan tool to retrieve any DTCs before moving onto the

symptom chart.

Make sure that all DTCs are cleared following rectification.

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