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Jaguar X-Type Sedan and Estate (Wagon). Manual - part 560

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Measure the resistance between the diagnostic connector, pin 07 (W) and:

Vehicles with low-line console -

RC23, pin 08 (W ).

Vehicles with high-line console -

RC33, pin 03 (W ).

Is the resistance greater than 5 ohms?
Yes

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC, test
the system for normal operation.

INSTALL a new roof console module. CLEAR the DTC, test the system for normal operation.

PINPOINT TEST AS : REVERSE PARK AID ISO CIRCUIT MALFUNCTION

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

AS1: CHECK THE REVERSE PARK AID MODULE FOR DAMAGE

Inspect the reverse park aid module for damage.

Does the reverse park aid module indicate signs of damage?
Yes

INSTALL a new reverse park aid module.
REFER to:

Parking Aid Module - 4-Door

(413-13 Parking Aid, Removal and Installation).

CLEAR the DTC, test the system for normal operation.

GO to AS2

AS2: CHECK K-LINE FOR SHORT CIRCUIT TO GROUND

Measure the resistance between diagnostic connector, pin 07 (W) and GROUND.

Is the resistance less than 10,000 ohms?
Yes

REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC, test the system
for normal operation.

GO to AS3

AS3: CHECK K-LINE FOR SHORT CIRCUIT TO BATTERY

Measure the resistance between diagnostic connector, pin 07 (W) and pin 16 (OY).

Is the resistance less than 10,000 ohms?
Yes

REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC, test the system
for normal operation.

GO to AS4

AS4: CHECK FOR OPEN CIRCUIT ON K-LINE BETWEEN THE DIAGNOSTIC CONNECTOR AND THE REVERSE PARK AID MODULE

Turn the ignition switch to the OFF position.
Disconnect the battery negative terminal.
Disconnect the reverse park aid module connector, RB07.
Measure the resistance between diagnostic connector, pin 07 (W) and RB07, pin 05 (W ).

Is the resistance greater than 5 ohms?
Yes

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC, test the
system for normal operation.

INSTALL a new reverse park aid module.
REFER to:

Parking Aid Module - 4-Door

(413-13 Parking Aid, Removal and Installation).

CLEAR the DTC, test the system for normal operation.

PINPOINT TEST AT : ECM ISO CIRCUIT MALFUNCTION

• NOTE: These pinpoint tests apply only to OBD2 diagnostics. The ECM does most of it's diagnostics via CAN.

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

AT1: CHECK ECM FOR DAMAGE

Inspect the ECM for damage.

Does the ECM indicate signs of damage?
Yes

Please check part is not on any form of prior authorisation before replacement.

GO to AT2

AT2: CHECK K-LINE FOR SHORT CIRCUIT TO GROUND

Measure the resistance between the diagnostic connector, pin 07 (W) and GROUND.

Is the resistance less than 10,000 ohms?
Yes

REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC, test the system
for normal operation.

GO to AT3

AT3: CHECK K-LINE FOR SHORT CIRCUIT TO BATTERY

Measure the resistance between the diagnostic connector, pins 07 (W ) and 16 (OY).

Is the resistance less than 10,000 ohms?
Yes

REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC, test the system
for normal operation.

GO to AT4

AT4: CHECK FOR OPEN CIRCUIT ON K-LINE BETWEEN THE DIAGNOSTIC CONNECTOR AND THE ECM

• NOTE: The diesel ECM is not part of the ISO network.

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Turn the ignition switch to the OFF position.
Disconnect the battery negative terminal.

Vehicles with 2.5 and 3.0L engine -

Disconnect the ECM connector, EN16.
Measure the resistance between the diagnostic connector, pin 07 (W) and EN16, pin 105 (W).

Vehicles with 2.0L petrol engine -

Disconnect the ECM connector, EN65.
Measure the resistance between the diagnostic connector, pin 07 (W) and EN65, pin 39 (W).

Is the resistance greater than 5 ohms?
Yes

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC, test the
system for normal operation.

Please check part is not on any form of prior authorisation before replacement.

PINPOINT TEST AU : FUEL FIRED HEATER (FFH) MODULE ISO CIRCUIT MALFUNCTION

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

AU1: CHECK THE FFH MODULE FOR DAMAGE

Inspect the FFH module for damage.

Does the FFH module indicate signs of damage?
Yes

Please check part is not on any form of prior authorisation before replacement.

GO to AU2

AU2: CHECK K-LINE FOR SHORT CIRCUIT TO GROUND

Measure the resistance between the diagnostic connector, pin 07 (W) and GROUND.

Is the resistance less than 10,000 ohms?
Yes

REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC, test the system
for normal operation.

GO to AU3

AU3: CHECK K-LINE FOR SHORT CIRCUIT TO BATTERY

Measure the resistance between the diagnostic connector, pins 07 (W ) and 16 (OY).

Is the resistance less than 10,000 ohms?
Yes

REPAIR the short circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC, test the system
for normal operation.

GO to AU4

AU4: CHECK FOR OPEN CIRCUIT ON K-LINE BETWEEN THE DIAGNOSTIC CONNECTOR AND THE FFH MODULE

Turn the ignition switch to the OFF position.
Disconnect the battery negative terminal.
Disconnect the FFH module connector, JB232.
Measure the resistance between the diagnostic connector, pin 07 (W) and JB232, pin 03 (W).

Is the resistance greater than 5 ohms?
Yes

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams. CLEAR the DTC, test the
system for normal operation.

Please check part is not on any form of prior authorisation before replacement.

PINPOINT TEST AV : AMPLIFIER SUPPLY OR GROUND FAULT

TEST

CONDITIONS

DETAILS/RESULTS/ACTIONS

AV1: CHECK THE B+ SUPPLY TO THE AMPLIFIER

Turn the ignition switch to the OFF position.
Disconnect the amplifier connector, CA425.
Measure the voltage between CA425, pin 03 (NR) and GROUND.
Measure the voltage between CA425, pin 09 (NR) and GROUND.

Is either voltage less than 10 volts?
Yes

REPAIR the circuit between CA425, pins 03/09 and battery. This circuit includes the primary junction box, fuse 20.
For additional information, refer to the wiring diagrams.

GO to AV2

AV2: CHECK THE GROUND TO THE AMPLIFIER

Turn the ignition switch to the OFF position.
Measure the resistance between CA425, pin 02 (B) and GROUND.
Measure the resistance between CA425, pin 08 (B) and GROUND.

Is either resistance greater than 5 ohms?
Yes

REPAIR the high resistance circuit. For additional information, refer to the wiring diagrams.

No fault found with power or ground supplies. Check for DTCs indicating a module fault.

Published: 11-May-2011

Module Communications Network - Communications NetworkVIN Range:
J28493->V99999

Diagnosis and Testing

Principles of Operation

The vehicle has four module communication networks. Only three of which are connected to the diagnostic connector. The standard
corporate protocol (SCP) and controller area network (CAN), which are an unshielded twisted pair cable: data bus + and data bus - and
the International Standard Organization (ISO) 9141 communication network, which is a single wire network.

The domestic data bus (D2B), which is a fibre optic ring network, can be diagnosed through the SCP network, and with the optical bus
tester.

The SCP, CAN and ISO networks can be connected to the Jaguar approved diagnostic system by one diagnostic connector. This makes
troubleshooting these systems easier by allowing one smart tester to be able to diagnose any module on the three networks from one
connector. On-board diagnosis of the D2B network is through the in car entertainment (ICE) head.

The diagnostic connector is located under the instrument panel.

The ISO 9141 communications network does not permit inter-module communications. When the Jaguar approved diagnostic system
communicates with modules on the ISO 9141 communication network, the diagnostic system must ask for all information, the modules will
not initiate communications.

The SCP communication network remains operational even with severing of one of the bus wires. Communications will also continue if one
of the bus wires is shorted to ground or battery positive voltage (B+), or if some (but not all) termination resistors are lost.

Unlike the SCP communication network, the ISO 9141 communication network will not function if the wire is shorted to ground or battery
positive voltage (B+). Also, if one of the modules on the ISO 9141 network loses power or shorts internally, communication to that module
will fail.

The anti-lock brake control module is connected to the CAN communication network. The module comes in two forms. The first type is the
standard equipped anti-lock brake system (ABS) with traction control. It controls the brake pressure to the four wheels to keep the vehicle
under control while braking. The second type of ABS is optional and is called dynamic stability control (DSC). This module adds yaw and
steering wheel angle sensors to the package to help in sensing a loss of vehicle control. For additional information,
REFER to:

Anti-Lock Control - Stability Assist

(206-09 Anti-Lock Control - Stability Assist, Description and Operation).

The in car entertainment (ICE) head is connected to the SCP communication network and also to the D2B network. The D2B communicates
with the compact disc player, cellular phone transceiver, navigation system, amplifier, and the voice control module. For additional
information on the compact disc,
REFER to:

Audio System

(415-00 Information and Entertainment System - General Information, Diagnosis and Testing).

For additional information on the cellular phone,
REFER to:

Cellular Phone

(419-08 Cellular Phone, Diagnosis and Testing).

For additional information on the navigation system,
REFER to:

Navigation System

(419-07 Navigation System, Diagnosis and Testing).

For additional information on the amplifier,
REFER to:

Audio System

(415-01 Audio Unit, Description and Operation).

For additional information on the voice activated control system,
REFER to:

Multifunction Electronic Module

(419-10 Multifunction Electronic Modules, Diagnosis and Testing).

The electronic automatic temperature control (EATC) module is connected to the CAN communication network. The EATC module controls
automatic climate functions that maintain the vehicle at a constant temperature setting. For additional information,
REFER to:

Climate Control System

(412-00 Climate Control System - General Information, Diagnosis and Testing).

The instrument cluster (also known as an instrument cluster module ICM) is connected to the CAN and SCP communication networks. The
instrument cluster displays information received on the SCP including speedometer, odometer, fuel, and message center warnings. The
instrument cluster displays information received on the CAN including ABS, air conditioning, transmission and engine condition. The
instrument cluster also controls the passive anti-theft system (PATS). For additional information;
REFER to:

Instrument Cluster and Panel Illumination

(413-00 Instrument Cluster and Panel Illumination, Diagnosis and Testing).

For instrument cluster operation and
REFER to:

Anti-Theft - Passive

(419-01B Anti-Theft - Passive, Diagnosis and Testing).

for PATS.

The general electronic module (GEM) is connected to the SCP communication network. The GEM controls both interior and exterior lighting,
active anti-theft functions and warning chimes. For additional information on interior lamps,
REFER to:

Interior Lighting

(417-02 Interior Lighting, Diagnosis and Testing).

For additional information on exterior lighting,
REFER to:

Headlamps

(417-01 Exterior Lighting, Diagnosis and Testing).

For additional information on active anti-theft,
REFER to:

Anti-Theft - Active

(419-01A Anti-Theft - Active, Diagnosis and Testing).

For additional information on warning chimes,
REFER to:

W arning Devices

(413-09 Warning Devices, Diagnosis and Testing).

The engine control module (ECM) is connected to both the CAN and ISO 9141 communication networks. The ECM controls the engine
performance, electronic ignition, emission controls, speed control, and on board diagnostics. For additional information;
REFER to:

Electronic Engine Controls - 2.5L NA V6 - AJV6/3.0L NA V6 - AJ27, VIN Range: E96603->J28492

(303-14A Electronic Engine

Controls - 2.0L NA V6 - AJV6/2.5L NA V6 - AJV6/3.0L NA V6 - AJ27, Diagnosis and Testing).
,
REFER to:

Electronic Engine Controls - 2.0L NA V6 - AJV6

(303-14A Electronic Engine Controls - 2.0L NA V6 - AJV6/2.5L NA V6 - AJV6/3.0L NA

V6 - AJ27, Diagnosis and Testing).
or
REFER to:

Electronic Engine Controls

(303-14B Electronic Engine Controls - 2.0L Duratorq-TDCi/2.2L Duratorq-TDCi (110kW/150PS) - Puma,

Diagnosis and Testing).

The 'phone module is connected to the D2B communication network, and incorporates the VEMS, or Vehicle Emergency Messaging System.
The module allows a user to request emergency assistance (police, ambulance, fire, recovery) or directions to a desired location at the
touch of a button. Also, if any of the vehicle's airbags are deployed while the VEMS system is powered ON, the system automatically issues
a call for emergency assistance. For additional information,
REFER to:

Compact Disc (CD) Changer - 4-Door

(415-01 Audio Unit, Removal and Installation).

The airbag restraints module is connected to the ISO 9141 communication network. The airbag control module controls the deployment of
the air bags based on sensor input. For additional information;

REFER to:

Air Bag Supplemental Restraint System (SRS)

(501-20B Supplemental Restraint System, Diagnosis and Testing).

The voice activated control module (VACM) is connected to the D2B communication network. This allows the user to select functions by
giving a voice command. The VACM sends the command information by D2B to the correct module or audio unit.

The navigation system (NAV) is connected to the D2B communication network, and performs it's diagnostics via the SCP network. The NAV
receives inputs from the GPS antenna and various other sensors. For additional information,
REFER to:

Navigation System

(419-07 Navigation System, Diagnosis and Testing).

Inspection and Verification

1. Verify the customer concern.

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

Electrical

Fuses
W iring harness
Loose or corroded connections
Correct engagement of electrical connectors
Controller area network (CAN)
Instrument cluster (IC)
Steering wheel rotation sensor (SW RS)
Gear selector module (GSI)
Headlight levelling module (HID)
Yaw rate sensor
Electronic air temperature control module (EATCM)
Memory seat control module
Transmission control module (TCM)
Anti-lock brake control module with or without dynamic stability control (ABS/DSC)
Engine control module (ECM)
Standard corporate protocol (SCP)
Generic electronic module (GEM)
Instrument cluster (IC)
In-car entertainment (ICE)
Navigation system (NAV)
Engine control module (ECM)
International standards organization (ISO)
Fuel fired heater module
Reverse park aid module
Restraints control module (RCM)
Headlight levelling module (HID)
Roof console scanner
Domestic data bus (D2B)
ICE head unit (HU)
Compact disc changer (CD)
Cellular phone module (CPM)
Voice module (VACM)
Navigation system module (NSM)
Amplifier (AMP)

Visual Inspection Chart

Optical

Routing of fibre optic harnesses
Correct engagement of optical connectors
Correct placement of optical connectors (ring order)
Damage to fibre (chafing, abrasion, kinking, cuts, etc)
Correct assembly of optical connectors (backout, etc)

Default Modes

Possible TCM default

Fixed 4th gear
Erratic gear shifts

Possible ECM default

Throttle motor and relay disabled
Throttle valve opening set to default value
Idle speed controlled by fuel injection intervention
Idle speed adaptation inhibited
Throttle opening limited to 30%
Vehicle speed limited
Speed (cruise) control limited
Maximum throttle opening for N range inhibited
Maximum engine speed reduced
HO2 sensor control circuit inhibited
Maximum ignition retard

Symptom Chart

• NOTE: Network DTCs may be set by an error or communications failure in the network. Individual DTCs are in the table, alongside their
respective modules, but may also be set by a combination of factors affecting the network, which would result in multiple DTCs being set
for one error, or, as in the case of an open circuit, no DTC being set.

DTC

Description

Possible Source

Action

P0860

CAN ECM / JGM network
malfunction

Module power supply or
ground interruption
CAN open circuit fault; JGM
to ECM

Refer to power and ground test for suspect module. For JGM CAN
circuit tests, GO to Pinpoint Test

AW.

Please check part is not on

any form of prior authorization before replacement.

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