Jaguar X-Type Sedan and Estate (Wagon). Manual — part 575

Published: 11-May-2011

Anti-Theft - Active - Anti-Theft Alarm Horn

Removal and Installation

Removal

1. Remove the left-hand front fender splash shield.

For additional information, refer to:

Fender Splash Shield

(501-02 Front

End Body Panels, Removal and Installation).

2. Detach the anti-theft alarm horn electrical connector.

3. Disconnect the anti-theft alarm horn electrical connector.

4. Detach the front bumper electrical connector.

5. Remove the anti-theft alarm horn.

Installation

1. To install, reverse the removal procedure.

Published: 11-May-2011

Anti-Theft - Passive - Anti-Theft - Passive

Description and Operation

Item

Part Number

Description

1

—

PATS transceiver module

The passive anti theft system (PATS) is a feature to prevent the vehicle from being driven away by an unauthorized person. The PATS
system consists of electronically coded keys, a transceiver device and a control module. When the ignition is switched to position II, the
transceiver energizes the ignition key to read it's electronic code that is transmitted back. If the code read equals a code stored in the
control module, the engine control module (ECM) will let the engine start. Otherwise, starting of the engine is disabled (through the starter
disable relay and the ECM). Note a different code is used by the PATS system everytime.

Published: 11-May-2011

Anti-Theft - Passive - Anti-Theft - Passive

Diagnosis and Testing

Inspection and Verification

1. Verify the customer concern.

1.

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

2.

Visual Inspection Chart

Mechanical

Electrical

Ignition lock cylinder
PATS key
Two PATS keys on the same keyring
Uncoded PATS key

W iring harness for damage or corrosion
Electrical connector(s)
Relay(s)
Ignition switch
Range sensor (Auto transmission)

Engine control module (ECM)

Tansceiver

fuse(s)

3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next

step.

3.

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

4.

Published: 11-May-2011

Anti-Theft - Passive - Anti-Theft Security Access

General Procedures

1. The complexity of the electronics involved with the anti theft, of which

the security access is a part, and the multiplexed communication
network which are connected to it preclude the use of workshop general
electrical test equipment. Therefore, reference should be made to the
W DS User Guide for detailed instructions on security access . The WDS
systematically tests and analyses all functions and the various systems
affected by it. W here a fault is indicated, some basic diagnostic
methods may be necessary to confirm that connections are good and
that wiring is not damaged before installing a new component.