abs module JAGUAR XFR 2010 1.G Workshop Manual
Page 2146 of 3039
Check the Starter Relay circuit. 
 
 
NOTE: On petrol engine variants, due to Smart Start, both sides of Relay Coil are switched directly from ECM (If 
conditions correct). On diesel engine variants the low side only is switched directly from the ECM. 
Check that the Steering Column Lock correctly operates and the steering wheel can turn freely. 
 
Check that the High Speed CAN network is not malfunctioning, i.e. the CAN circuit is open or short circuit. This would mean 
that the instrument cluster and ECM would be unable to communicate resulting in no Challenge being performed to enable the 
ECM. This would be supported by LED Flash Code 24, see PATS Fault Code Table. 
 
Also check the CAN network between the ABS module and the CJB. The CJB uses the CAN_BrakePressureTMC signal to 
determine if the brake pedal has been pressed in order to allow an engine crank. The CJB uses a value of 0x05, if the CJB sees 
a value less than this, it will not enable the Crank Request Output. 
Engine cranks but will not start 
 
If the Engine is cranking it means that the ECM has passed the authorisation required with the Instrument Cluster. If this 
authorisation failed, the ECM would not engage the starter relay. This could be confirmed by verifying the PATS LED prove out 
(illuminated solid for 3 seconds) or by reading DTCs from the instrument cluster and ECM. 
 
In this case, the fuel pump circuit should be verified. The Fuel Pump Delivery Module (FPDM), which is supplied via the RJB 
(authentication required with the instrument cluster) and controlled by the ECM, supplies the fuel pump. 
In all cases of suspected non-start issues, the most logical failure modes should be eliminated first. i.e. 
 
1. Check all relevant supplies and grounds to the relevant modules listed herein. 
2. Note any unusual behaviour from other systems/functionality. 
3. Note any functions that are not operating as expected. 
PATS Fault Codes 
 
For the various PATS modes/faults listed in the table , the instrument cluster will store a DTC and indicate this to the customer 
during the detection period defined in the 'when logged' column, by illuminating the indicator as described for 60 seconds and 
then flashing the LED 10 times as appropriate. The indication will stop immediately the ignition status is set to OFF any time 
during the fault indication sequence. Up to 4 DTCs could be stored per key read sequence (1-10 read attempts). No DTCs will be 
stored until all retry attempts are complete. Only the highest priority fault code will be flashed. 
 
To determine the fault code from the LED: The LED will flash initially ten times with 1.5 seconds between. The LED will remain 
OFF for 2.5 seconds then flash a number of times with 0.5 seconds between (the number of times the LED flashes represents 
the first digit of the code), the LED will remain OFF for 1.5 seconds then flash a number of times with 1.5 seconds between 
(the number of times the LED flashes represents the second digit of the code). 
 
The PATS LED will be commanded on as shown under 'indication'. Normal PATS operations are complete within 400ms of the 
ignition switch transition from OFF to ON or START, worst case for ECM communication problems will be less than 2 seconds. If 
PATS is not complete during the 2 seconds the ECM will terminate PATS and await the next ignition ON or START event. PATS 
faults will be indicated via the LED as soon as possible and will terminate the LED prove out. At ignition OFF all previous 
flashing will cease and the perimeter anti-theft system will control the LED when the vehicle is locked and armed. 
 
PATS Fault Code Table 
 
 
Mode of Operation/Fault  
 
When Logged  
Ignition 
Status  
 
DTC LED 
Fault 
Code  
 
Indication Prove out N/A Transition 
from OFF to 
ON N/A N/A 
3 Seconds of steady 
illumination Perimeter Anti-theft Control N/A OFF - 
Vehicle 
locked and 
armed N/A N/A 
Off or 0.5Hz flashing 
at 5% duty cycle ± 
20% until Off Start Control Unit already programmed Key Insert Any B1B0105 N/A No Indication Start Control Unit status = invalid response Key Insert Any B1B0167 N/A No Indication Start Control Unit programming error Key Insert Any B1B0151 N/A No Indication Start Control Unit challenge response error Key Insert OFF B1B0162 N/A No Indication Key Programming timer expired or Key Auth Timer expired Key Insert Any B1B0187 N/A No Indication Transponder challenge response error Key Insert Any B1B0164 N/A No Indication Transponder keys stored below minimum number required B&A/Dealer Any B1B0100 N/A No Indication Transponder not programmed B&A/Dealer Any B1B0155 N/A No Indication If the instrument cluster sends a 'theft' key status 
to the ECM or the ECM returns a status message 
containing the data 'Disabled/Theft', the instrument 
cluster will set this DTC EMS CAN 
communication OFF to ON B1B3364 16 
60 seconds of 4Hz 
flashing at 50% duty 
cycle followed by fault 
code 16 flashing 10 
times  
Page 2149 of 3039
 
Navigation System - Navigation System 
Diagnosis and Testing 
 
Inspection and Verification Published: 15-Jul-2014 
 
CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not 
guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle. 
NOTES: 
 
 
If a control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the Warranty 
Policy and Procedures manual, or determine if any prior approval programme is in operation, prior to the installation of a new 
module/component. 
 
 
When performing voltage or resistance tests, always use a digital multimeter accurate to three decimal places, and with 
an up-to-date calibration certificate. When testing resistance always take the resistance of the digital multimeter leads into 
account. 
 
 
Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests. 
1. Verify the customer concern. 
 
2. Visually inspect for obvious signs of damage, water ingress and system integrity. 
 
Visual Inspection 
Mechanical Electrical  
Navigation system DVD player Mechanism  
Navigation system display 
Navigation system module 
GPS antenna 
Wiring harness for damage and corrosion 
ABS Module 
Electrical connector(s) 
Audio unit  
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to 
the next step. 
4. If the cause is not visually evident, check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index. 
 
Symptom Chart 
 
Symptom Possible Cause Action Poor satellite reception  
Electrical harness open/short 
circuit, dis-connected 
Component failure 
No reception from satellite GO to Pinpoint Test A. Map disc will not insert/eject  
Electrical harness open/short 
circuit, dis-connected 
Component failure 
Map disc failure GO to Pinpoint Test B. Black screen (navigation map 
screen does not display)  
Electrical harness open/short 
circuit, dis-connected 
Component failure 
GVIF cable GO to Pinpoint Test C. Navigation map screen color 
is abnormal  
Electrical harness open/short 
circuit, dis-connected 
Component failure 
GVIF cable GO to Pinpoint Test D.  
Page 2167 of 3039
10 Diagnostic socket 11 Pedestrian protection control module 12 Electric steering column lock 13 TCM 14 ABS (anti-lock brake system) module COMPONENT LOCATION - MOST 
 
 
 
Item Description NOTE: LHD vehicle shown 1 Touch Screen Display (TSD) 2 Integrated audio module 3 Entertainment system control module 4 Digital Audio Broadcast (DAB)/Satellite Digital Audio Radio System (SDARS) 5 Multimedia module  
Page 2170 of 3039
Instrument cluster 
High speed CAN 
(controller area network) bus Receives data from other vehicle systems to provide 
information to the driver. Also functions as the gateway for the bus systems. Instrument panel. Steering column 
High speed CAN bus Controls the locking and unlocking of the steering 
column. Upper steering column. Diagnostic socket 
High speed CAN bus Allows the transfer of vehicle information using a 
Jaguar approved diagnostic system or other diagnostic tool. In the lower instrument panel 
on the driver's side, adjacent 
to the start control module. RCM (restraints control module) High speed CAN bus Controls the deployment of the supplementary 
restraint components. At rear of floor console. TCM (transmission 
control module) High speed CAN bus Controls automatic transmission operation. 
Inside the transmission and 
accessible via the fluid pan. ECM (engine control 
module) High speed CAN bus Controls engine management and fuel system 
operation. Rear of the engine 
compartment on the 
bulkhead. ABS (anti-lock brake 
system) High speed CAN bus Controls all aspects of the braking system 
Rear of the engine 
compartment on the 
bulkhead. Headlamp leveling 
module High speed CAN bus Controls the static dynamic headlamp leveling 
function. In the lower instrument panel, behind the glovebox. Occupant classification 
system control module (NAS only) High speed CAN bus Detects when a passenger is in the front passenger 
seat and can determine their size and weight. Below the front passenger 
seat. Adaptive damping 
control module High speed CAN bus Controls the adjustment of the dampers. 
Below the front passenger 
seat. Electronic Parking Brake 
(EPB) module High speed CAN bus Controls the application and release of the electronic 
parking brake. In the luggage compartment, 
above the RH (right-hand) 
wheel arch. Pedestrian protection 
module High speed CAN bus Controls and monitors the pedestrian protection system. LH (left-hand) 'A' pillar. Adaptive speed control 
module High speed CAN bus Controls the vehicle's road speed in relation to other 
vehicles when in speed control mode. Behind the instrument panel 
on the driver's side. Electronic transmission 
selector High speed CAN bus Allows the driver to electronically select the required 
automatic transmission mode. Transmits driver 
selections to the TCM. In the floor console. Jaguar Drive control 
module High speed CAN bus Controls the Jaguar Drive function and communicates 
with other system modules. Integral with the electronic 
transmission selector 
software in the floor console. CJB 
Medium speed CAN bus Controls body functions and power distribution. On RH 'A' pillar.   Diagnostic socket 
Medium speed CAN bus Allows the transfer of vehicle information using a 
Jaguar approved diagnostic system or other diagnostic tool. In the lower instrument panel 
on the driver's side, adjacent 
to the start control module. Passenger door module 
Medium speed CAN bus Controls window and locking functions. In the front passenger door. Parking aid module 
Medium speed CAN bus Controls the parking aid system. 
In the LH side of the luggage compartment, adjacent to 
the keyless vehicle module. www.JagDocs.com 
Page 2317 of 3039
memory positions to be stored and 'set' button with integral LED (light emitting diode). The seat, door mirror and steering 
column motors have position sensors which provide feedback to driver's seat module. 
 
Once the driver's seat, steering column and exterior mirrors have been adjusted, the vehicle is able to memorize these 
settings for future use by using the following procedure: 
Push the memory 'SET' button, the LED in the switch will illuminate Press the memory button 1 or 2 to memorize the current settings. The LED will extinguish, and a chime will sound to confirm that the settings have been memorized. If the ignition is on, power mode 6, the message center will display a 
confirmation message. 
The positions can be recalled by pressing the applicable button 1 or 2. 
Stall Detection 
 
Seat, steering column and mirror motors are deemed to have stalled if there is no change in the inputs that are received from 
the corresponding feedback sensors for 200 ms (seat). 
 
If a stall condition is detected then the drive to that motor is cancelled for the remainder of that memory operation (memory 
recall) or until the switch is re-selected (manual movement). 
 
If the motor movement has stopped due to loss of sensor feedback, either stall or sensor failure, then that motor may be 
activated again, to move past the stall position, by re-selecting the appropriate switch and pressing for longer than 2 seconds. 
This allows control of the motor to be maintained if sensor feedback is lost. 
 
Upon re-selection of movement, if sensor pulses are detected then the motor will continue to be driven until the switch is 
released or another stall condition is detected. If sensor feedback is not detected then the motor is only driven for 0.5 second 
and then stops until the switch is released and then pressed again, when a further 0.5 second of activation is permitted, and 
so on, this is known as inch mode. 
 
For all seat motor manual movements, whenever a motor is driven and a stall occurs, the memory control module records the 
position at which the stall occurred. If movement occurs beyond a stall position, then that position is erased from the control 
modules memory. This will always allow movement past a previously recorded stall position once movement has been 
registered beyond that position. This is the case for both manual and memory movement. 
Initialization 
 
When a replacement driver's seat module is fitted, it should be calibrated a Jaguar approved diagnostic system so that the 
module can learn the seats absolute position. 
Battery Monitor 
 
If the battery voltage drops below 10.5 Volts, then the driver's seat module ignores all requests for a memory recall until the 
battery voltage has reached 11.5 Volts. This will conserve as much power in the vehicle battery as possible to enable engine 
cranking. 
 
REAR SEATS - DESCRIPTION 
 
The rear seat features a single piece cushion and a 60/40 split squab. Two latches are secured to the rear bulkhead by a pair 
of M8 bolts to retain the seat squabs in the upright position. The latches can be released to fold down the individual cushions 
by pulling a cable release located below the rear window parcel shelf in the luggage compartment. 
ISOFIX fastening points are attached to the vehicle floor to provide secure fastening for compatible child seats. 
 
A centrally mounted center arm rest can be folded down from the 60% squab. The arm rest contains two drinks holders.  
Page 2559 of 3039
Published: 11-May-2011 
Roof Opening Panel - Roof Opening Panel - Component Location 
Description and Operation 
Component Location 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Item Description 1 CJB (central junction box) 2 Roof opening panel, rocker switch 3 Rear window sunblind, switch 4 Roof opening panel, motor 5 Roof opening panel, control module 6 Roof opening panel 7 Rear window sunblind 8 Rear window sunblind, motor assembly 9 Drain tubes (4 off) 10 ABS (anti-lock brake system) module www.JagDocs.com 
Page 2561 of 3039
Published: 11-May-2011 
Roof Opening Panel - Roof Opening Panel - System Operation and 
Component Description 
Description and Operation 
 
Control Diagram 
 
NOTE: A = Hardwired 
 
 
 
Item Description 1 Battery 2 Megafuse (250 A) 3 Rear window sunblind, switch 4 Rear window sunblind, motor 5 ABS (anti-lock brake system) module 6 Roof opening panel, control module 7 Roof opening panel, rocker switch 8 CJB (central junction box)  
Page 2562 of 3039
 
Roof opening panel System Operation 
 
Operation of the roof opening panel is controlled by the roof opening panel control module, which is integral with the motor. 
The control module receives inputs from the CJB, which provides an 'open' or 'close' signal for remote handset operation, and 
an 'enable' signal when the vehicle enters power mode 6. 
 
The control module also receives a vehicle speed signal from the ABS module. The vehicle speed signal is used by the control 
module to calibrate the anti-trap feature. 
 
If the battery is disconnected, or the power supply is interrupted while the roof opening panel is in a partially open position, 
the motor and control module will need to be calibrated to restore full functionality. To recalibrate: 
1. Switch ignition on. 
2. Press the front of the switch, so the roof opening panel is the tilt position, and then release the switch. 
3. Press the front of the switch and hold for thirty seconds. 
4. After thirty seconds the roof opening panel will begin to move. Keep the front of the switch pressed until the roof 
opening panel has fully opened and then closed. 
5. Once the open/close cycle has completed and the roof opening panel has stopped moving, release the switch. 
6. The roof opening panel can now be operated as normal. 
 
Drain hoses are connected to the front and rear corners of the roof opening panel frame. The drain hoses are located inside of 
the cabin on the 'A' and 'D' post pillars to allow water, which has collected in the frame, to escape. One-way valves fitted to 
the end of each drain hose, prevent the ingress of dirt and moisture. 
 
Rear window sunblind 
 
The powered rear window sunblind is operated through a switch in the roof console. Power to the sunblind motor is provided by 
a pair of relays located in the CJB when the vehicle enters power mode 4. The sunblind motor is located beneath the rear parcel 
shelf and is supplied as a sealed unit with the sunblind mechanism. 
 
If the battery is disconnected or a replacement sunblind is fitted, the motor will require re-calibrating. To re-calibrate the 
motor the sunblind should be powered through two-full cycles of movement. 
 
 
 
Roof opening panel, motor Component Description 
 
The roof opening panel motor has a worm drive which drives a gear in the cast housing attached to the end of the motor. The 
gear has a small pinion gear attached to the outer part of its spindle. The pinion engages with two cables to form a rack and 
pinion drive. Rotation of the motor turns the pinion which in turn drives the cables in the required direction. 
 
The two cables are attached either side of the pinion. One end of each cable is attached to the guide; the opposite end of 
each cable is held in position on the pinion by a metal insert in the frame. The cables run in channels, in the panel frame to 
the guides. As the panel is closed the cables are pushed through channels in the front of the frame. The displaced cable is 
guided into a further two channels in the frame, which protect the cable and prevent it from snagging. The cables 
manufactured from rigid spring steel can pull as well as push the panel along the guides. 
 
The motor contains a micro-switch and Hall effect sensor. Signals received from these components enable the control module 
to calculate the exact position of the roof opening panel. The Hall effect sensor is also responsible for the operation of the 
anti-trap function. 
 
If the anti-trap feature is activated while the roof opening panel is closing, the panel is reversed for 200mm or as far as 
possible. The Hall effect sensor, located in the motor, monitors the speed of the motor and if the speed decreases below a set 
threshold, indicating an obstruction, the power feed to the motor is reversed so the panel goes back. In an emergency the 
anti-trap function can be overridden by holding the switch in the closed position. 
 
Roof opening panel, control module 
 
The roof opening panel control module is integrated within the motor. The control module receives inputs from the CJB, which 
provides an 'open' or 'close' signal for remote handset operation, and an 'enable' signal when the vehicle enters power mode 6. 
 
The control module also contains the algorithm for the anti-trap system and receives a vehicle speed signal from the ABS 
module. The vehicle speed signal is used by the control module to calibrate the anti-trap feature.