2010 JAGUAR XFR power steering

DTC Description Possible Causes Action B1D37-11
Wiper Switch
Connection Circuit -
Circuit short to ground
Flick wipe switch circuit -
short to ground
Refer to the electrical circuit diagrams and check
flick wipe switch circuit for short to ground B1D37-15
Wiper Switch
Connection Circuit -
Circuit short to battery
or open
Flick wipe switch circuit -
short to power, open circuit
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Refer to the electrical circuit diagrams
and check flick wipe switch circuit for short to
power, open circuit C1110-64
Power steering
Calibration Data - Signal
plausibility failure
Invalid VAPS curve loaded
Re-configure the instrument cluster as new to
download VAPS curve data P0635-11
Power Steering Control
Circuit - Circuit short to
ground
VAPS ignition supply circuit
- short to ground
Refer to the electrical circuit diagrams and check
VAPS ignition supply circuit for short to ground P0635-12
Power Steering Control
Circuit - Circuit short to
battery
VAPS ignition supply circuit
- short to power
Refer to the electrical circuit diagrams and check
VAPS ignition supply circuit for short to power P0635-13
Power Steering Control
Circuit - Circuit open
VAPS ignition supply circuit
- open circuit
Refer to the electrical circuit diagrams and check
VAPS ignition supply circuit for open circuit P0635-22
Power Steering Control
Circuit - Signal
amplitude > maximum
First valid received speed
value above threshold
Check ABS module for DTCs and refer to relevant
DTC Index P0635-44
Power Steering Control
Circuit - Data memory
failure
Data memory failure
Re-configure the instrument cluster as new to
download VAPS curve data U0001-88
High Speed CAN
Communication Bus -
Bus off
Bus Off
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Carry out CAN network integrity test
using the manufacturer approved diagnostic
system. Refer to the electrical circuit diagrams
and check HS CAN network to instrument cluster U0010-88
Medium Speed CAN
Communication Bus -
Bus off
Bus Off
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Carry out CAN network integrity test
using the manufacturer approved diagnostic
system. Refer to the electrical circuit diagrams
and check MS CAN network to instrument cluster U0100-00
Lost Communication
With ECM/PCM “A” - No
sub type information
Loss of CAN communication
with ECM
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check ECM for DTCs and refer to the
relevant DTC Index U0101-00
Lost Communication
with TCM - No sub type
information
Loss of CAN communication
with TCM
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check TCM for DTCs and refer to the
relevant DTC Index U0103-00
Lost Communication
With Gear Shift Module
- No sub type
information
Loss of CAN communication
with transmission shift
module
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check transmission shift module for
DTCs and refer to the relevant DTC Index U0104-00
Lost Communication
With Cruise Control
Module - No sub type
information
Loss of CAN communication
with speed control module
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check speed control module for DTCs
and refer to the relevant DTC Index U0121-00
Lost Communication
With Anti-Lock Brake
System (ABS) Control
Module - No sub type
information
Loss of CAN communication
with ABS module
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check ABS module for DTCs and refer to
the relevant DTC Index

DTC Description Possible Causes Action B100A-51 Fuel Pump Authorisation
- Not programmed
RJB fault
Low speed CAN fault
Instrument cluster fault
Check power and ground supplies to RJB. Check CAN
communications between RJB and instrument
cluster. Check power and ground supplies to
instrument cluster B100A-62 Fuel Pump Authorisation
- Signal compare failure
Low speed CAN fault
RJB fault
Instrument cluster fault
Incorrect module
installed
(RJB/Instrument cluster)
Write target SID
synchronisation error
following
re-programming
Noise/EMC related error
Check CAN communications between RJB and
instrument cluster. Check power and ground supplies
to RJB and instrument cluster. Confirm correct
module installed. Re-synchronise ID by
re-configuring the RJB as a new module. Check CAN
network for interference/EMC related issues B100A-63 Fuel Pump Authorisation
- Circuit/component
protection time-out
RJB fault
Low speed CAN fault
Instrument cluster fault
Low battery voltage <9V
Check power and ground supplies to RJB and
instrument cluster. Check CAN communications
between RJB and instrument cluster. Check battery
is in fully charged and serviceable condition, refer to
the battery care manual B1026-12
Steering Column Lock -
Circuit short to battery
Steering column lock
ground circuit - short to
power
Refer to the electrical circuit diagrams and check
steering column lock ground circuit for short to
power B1087-83
LIN Bus "A" - Value of
signal protection
calculation incorrect
The checksum of the
received LIN frame is
incorrect
Check the battery monitoring system and rear
parking aid system for DTCs and refer to relevant
DTC Index B1087-86
LIN Bus "A" - Signal
invalid
The header of the LIN
message received is
incorrect
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Check the battery monitoring system and rear
parking aid system for DTCs and refer to relevant
DTC Index B1087-88 LIN Bus "A" - Bus off
Battery monitoring
system LIN circuit -
short to ground, power
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
battery monitoring system LIN circuit for short to
ground, power B108A-23
Start Button - Signal
stuck low
Start/Stop switch digital
input signal circuit -
stuck low
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
Start/Stop switch digital input signal circuit for short
to ground B10A1-11 Trailer Tow Detection -
Circuit short to ground
Trailer tow detection
digital input circuit -
short to ground
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
trailer tow detection digital input circuit for short to
ground B10AF-12
Blower Fan Relay -
Circuit short to battery
High Side output not
driven - Diagnosis
feedback indicates
output is short to power
Refer to the electrical circuit diagrams and check
blower motor supply circuit for short to power B10AF-14
Blower Fan Relay -
Circuit short to ground
or open
High Side output not
driven - Diagnosis
feedback indicates
output is short to
ground, open circuit
Refer to the electrical circuit diagrams and check
blower motor supply circuit for short to ground, open
circuit

DTC Description Possible Causes Action check CAN Network B100D-87
Column Lock
Authorisation -
Missing message
Missing message
CAN fault
No response from
electric steering column
lock control module,
instrument cluster,
central junction box
Battery voltage at
electric steering column
lock control module too
low
Electric steering column
lock control module,
instrument cluster,
central junction box fault
NOTE: Prior to clearing this DTC, carry out the Vehicle
Functional Reset application using the manufacturer approved
diagnostic system

Clear DTC, repeatedly lock and unlock car using the key
fob and retest. Check for related DTCs and refer to the
relevant DTC index
If the fault is cleared, notify the customer that the
steering column lock may fail to unlock if the vehicle is
parked with a high steering angle or with the road wheel
against a curb. If the column lock is failing to disengage,
the customer may be able to rectify this by rotating the
steering wheel while pressing the engine start button
If fault persists, complete a CAN network integrity test
using the manufacturers approved diagnostic system.
Alternatively, refer to the electrical circuit diagrams and
check CAN circuits between the central junction box, the
instrument cluster and the electronic steering column
lock. Refer to the electrical circuit diagrams and check the
central junction box, the instrument cluster and the
electronic steering column lock power and ground supply
circuits for short circuit to ground, short circuit to power,
open circuit, high resistance. Repair circuit(s) as required.
Clear DTC, perform an on demand self-test and retest
If fault persists, check that the vehicle battery supply
voltage is between 9-16 volts. Rectify as required U0001-88
High Speed CAN
Communication
Bus - Bus off
Bus off
Refer to the electrical circuit diagrams and check the
power and ground connections to the module. Using the
manufacturer approved diagnostic system, complete a
CAN network integrity test. Refer to the electrical circuit
diagrams and check the CAN network U0300-00
Internal Control
Module Software
Incompatibility -
No sub type
information
No sub type information
Refer to network communication section of the workshop
manual. Clear the DTC and ensure the vehicle battery
supply voltage is between 9-16Volts. Using the
manufacturers approved diagnostic system, complete a
CAN integrity test. Perform an on demand self-test and
retest U3000-49
Control Module -
Internal electronic
failure
Internal electronic
failure detected during
self test or lock/unlock
operation
Refer to network communication section of the workshop
manual. Clear the DTC and ensure the vehicle battery
supply voltage is between 9-16Volts. Perform an on
demand self-test and if the DTC returns suspect the
electric steering column lock, refer to the warranty policy
and procedures manual if a module/component is suspect U3000-87
Control Module -
Missing message
Configuration message
not received
Refer to the electrical circuit diagrams and check the
power and ground connections to the module. Using the
manufacturer approved diagnostic system, complete a
CAN network integrity test. Refer to the electrical circuit
diagrams and check the CAN network. Check modules are
configured correctly using the manufacturer approved
diagnostic system U3002-81
Vehicle
Identification
Number - Invalid
serial data
received
Invalid vehicle
identification number
Confirm the correct VIN details are stored in Steering
Column Lock Module using the approved diagnostic
system

and drive half shaft failure, which could cause serious personal injury and extensive vehicle damage. Failure to follow these
instructions may result in personal injury.


CAUTION: The suspension should not be allowed to hang free. When the CV joint is run at a very high angle, extra
vibration as well as damage to the seals and joints can occur.

The rear suspension lower arm should be supported as far outboard as possible. To bring the vehicle to its correct ride height,
the full weight of the vehicle should be supported in the rear by floor jacks. REFER to: (100-02 Jacking and Lifting)

Jacking (Description and Operation), Lifting (Description and Operation).
1. Raise and support the vehicle. REFER to: (100-02 Jacking and Lifting)
Jacking (Description and Operation), Lifting (Description and Operation).
2. Explore the speed range of interest using the Road Test Quick Checks as previously described.

3. Carry out a coast down in neutral. If the vehicle is free of vibration when operating at a steady indicated speed and
behaves very differently in drive and coast, a transmission concern is likely.

Note, however, that a test on the lift may produce different vibrations and noises than a road test because of the effect of the
lift. It is not unusual to find vibrations on the lift that were not found in the road test. If the condition found on the road can
be duplicated on the lift, carrying out experiments on the lift may save a great deal of time.

Exhaust Neutralization Procedure

1. Raise vehicle on lift and slacken all exhaust fixings.

2. With all fixings loose, neutralize the exhaust system.

3. Tighten all fixings to correct torque, starting at the rear-most point working towards the front of the vehicle.

Symptom Chart

Symptom Possible Cause Action High-speed shake
Wheel end vibration
Engine/transmission
Driveline GO to Pinpoint Test A. Tip-in moan
Air cleaner
Power steering
Powertrain
Engine mounts
Exhaust system GO to Pinpoint Test B. Idle boom/shake/vibration, or shudder
Cable(s)/hoses(s)
Intake air distribution and filtering system
Engine mounts
Exhaust system
Belt/pulleys GO to Pinpoint Test C. Wheel end vibration analysis
Suspension/rear drive halfshaft and CV joints
Tires/wheels
Wheel bearings
CV joint boots GO to Pinpoint Test D. Non-axle noise
Trim/mouldings
A/C system
Accessories GO to Pinpoint Test E. Pinpoint Tests


NOTE: These Pinpoint Tests are designed to take the technician through a step-by-step diagnosis procedure to determine
the cause of a condition. It may not always be necessary to follow the chart to its conclusion. Carry out only the Pinpoint Test
steps necessary to correct the condition. Then check operation of the system to make sure the condition is corrected.
After verifying that the condition has been corrected, make sure all components removed have been installed.

PINPOINT TEST A : HIGH-SPEED SHAKE TEST DETAILS/RESULTS/ACTIONS www.JagDocs.com

PINPOINT TEST B : TIP-IN MOAN TEST
CONDITIONS DETAILS/RESULTS/ACTIONS B1: CHECK THE AIR CLEANER 1 Check the air cleaner.
Check the air cleaner, inlet tube, outlet tube, resonators and all other components associated with
the air induction system for correct installation and tightness of all connections. Are the components OK? Yes
GO to B2. No
Correct the condition. Repeat the Road Test as outlined. B2: CHECK THE EXHAUST SYSTEM 1 Carry out the exhaust system neutralizing procedure in this section. Is the exhaust system OK? Yes
GO to B3. No
Repair as necessary. Restore vehicle. Repeat the Road Test as outlined. B3: CHECK THE POWER STEERING 1 Remove the auxiliary drive belt and test for tip-in moan. Is the tip-in moan OK? Yes
Repair the power steering as necessary. For additional information, refer to Section 211-00.
No
Check and install new engine/transmission mounts as necessary. Repeat Road Test as outlined.
PINPOINT TEST C : IDLE BOOM/SHAKE/VIBRATION/SHUDDER TEST
CONDITIONS DETAILS/RESULTS/ACTIONS C1: CHECK CABLE/HOSES 1 Check the engine compartment for any component that may be grounding between the engine and body or chassis. Example: air conditioning (A/C) hoses. Are the components OK? Yes
GO to C2. No
Correct the condition. Repeat the Road Test as outlined. C2: CHECK THE COOLING RADIATOR 1 Check the engine cooling radiator mountings and bushings for security and condition. Check the radiator installation for any component that may have a touch condition. Are the installation and bushings OK? Yes
GO to C3. No
Correct the condition. Repeat the Road Test as outlined. C3: CHECK THE EXHAUST SYSTEM 1 Carry out the exhaust system neutralizing procedure in this section. Is the exhaust system OK? Yes
Check and install new engine/transmission mounts as necessary. Repeat Road Test as outlined.
No
Repair as necessary. Repeat Road Test.
PINPOINT TEST D : WHEEL END VIBRATION ANALYSIS TEST CONDITIONS DETAILS/RESULTS/ACTIONS D1: INSPECT THE TIRES 1 Inspect the tires.
Raise and support the vehicle. REFER to: (100-02 Jacking and Lifting)
Jacking (Description and Operation), Lifting (Description and Operation).
Inspect the tires for:
Correct tire size
Tire/wheel compatibility
Wear or damage

7 Rear accelerometer 8 Instrument cluster 9 JaguarDrive selector module 10 ABS (anti-lock brake system) module 11 TCM (transmission control module) 12 ECM (engine control module) 13 RH (right-hand) rear damper 14 RH front damper 15 LH (left-hand) front damper 16 LH rear damper 17 LH rear suspension height sensor 18 RH rear suspension height sensor 19 LH front suspension height sensor 20 RH front accelerometer 21 RH front suspension height sensor 22 Adaptive damping module 23 LH front accelerometer


PRINCIPLES OF OPERATION System Operation

The adaptive damping module uses a combination of information from other system modules and data from the accelerometers
and suspension height sensors to measure the vehicle and suspension states and driver inputs. Using this information, the
adaptive damping module applies algorithms to control the dampers for the current driving conditions.
The adaptive damping module receives signals on the high speed CAN bus from the following system components: Brake Pressure - ABS module. Brake Pressure Quality Factor - ABS module. Car Configuration Parameters - AJB. Center Differential Range Actual - ECM. Engine Speed - ECM. Engine Speed Quality Factor - ECM. Engine Torque Flywheel Actual - ECM. Engine Torque Flywheel Actual Quality Factor - ECM. Gear Position Target - TCM. Lateral Acceleration - ABS module. Power Mode (Ignition Signal) - CJB. Power Mode Quality Factor - CJB. Roll Stability Control Mode - ABS module. Steering Wheel Angle - ABS module. Steering Wheel Angle Speed - ABS module. Steering Wheel Angle Status - ABS module. Terrain Mode Requested - JaguarDrive selector.
Torque Converter Slip - TCM. Vehicle Information Parameters HS - AJB Vehicle Speed - ABS module. Vehicle Speed Quality Factor - ABS module. Front Left Wheel Speed - ABS module. Front Left Wheel Speed Quality Factor - ABS module. Front Right Wheel Speed - ABS module. Front Right Wheel Speed Quality Factor - ABS module. Rear Left Wheel Speed - ABS module. Rear Left Wheel Speed Quality Factor - ABS module. Rear Right Wheel Speed Quality Factor - ABS module. Rear Right Wheel Speed - ABS module. The adaptive damping module also outputs information on the high speed CAN bus for use by other systems as follows: Fault Message - instrument cluster.
Terrain Mode Change Status - JaguarDrive selector.
Terrain Mode - JaguarDrive selector.

The adaptive damping module monitors the input signals and operates the damper solenoids. The input signals are used in
control modes and a force required for each damper for that mode is calculated. An arbitration mode monitors the force
requirements from each mode and apportions a force to a damper. The force is converted to the appropriate current and sent to
the damper.
The control modes are as follows:

each damper to the appropriate level to maintain a flat and level body.
Roll Rate Control – Uses CAN inputs. Predicts vehicle roll rate due to driver steering inputs 100 times a second and increases damping to reduce roll rate.
Pitch Rate Control – Uses CAN inputs. Predicts vehicle pitch rate due to driver throttle and braking inputs 100 times a second and increases damping to reduce pitch rate.
Bump Rebound Control – Uses suspension height sensor and CAN inputs. Monitors the position of the wheel 500 times a second and increases the damping rate as the damper approaches the end of its travel.
Wheel Hop Control – Uses suspension height sensor and CAN inputs. Monitors the position of the wheel 500 times a second and detects when the wheel is at its natural frequency and increases the dampingto reduce vertical wheel
motion.

Under normal road conditions when the vehicle is stationary with the engine running, the dampers are set to the firm condition
to reduce power consumption.

The adaptive damping module receives its power supply via a relay and fuse in the CJB. The relay remains energized for a period of time after the ignition is off. This allows the adaptive damping module to record and store any DTC (diagnostic
trouble code) relating to adaptive dynamics system faults.



DAMPERS Component Description



Item Description A Front spring and damper assembly B Rear spring and damper assembly The 'Adaptive Dynamics' dampers are monotube, nitrogen gas and oil filled units, manufactured by Bilstein. The dampers are
continuously variable, which allows the damping force to be electrically adjusted when the vehicle is being driven. The variable
dampers provide the optimum compromise between vehicle control and ride comfort.

The dampers have an electrical connector on the end of the piston rod, in the center of the top mount (the dampers look
identical to those on the Computer Active Technology Suspension (CATS) system of 4.2L supercharged vehicles, but have a
different part number).

In each damper, the continuous damping adjustment is achieved by a solenoid operated variable orifice, which opens up an
alternative path for oil flow within the damper. When de-energized the bypass is closed and all the oil flows through the main
(firm) piston. When energized, the solenoid moves an armature and control blade, which work against a spring. The control
blade incorporates an orifice which slides inside a sintered housing to open up the bypass as required. In compression, oil
flows from the lower portion of the damper through a hollow piston rod, a separate soft (comfort) valve, the slider housing and
orifice and into the upper portion of the damper, thereby bypassing the main (firm) valve. In rebound the oil flows in the www.JagDocs.com

Brake System - General Information - Brake System
Diagnosis and Testing

Principle of Operation Published: 11-May-2011

For a detailed description of the brake system, refer to the relevant Description and Operation sections in the workshop
manual. REFER to:

Front Disc Brake (206-03, Description and Operation),
Front Disc Brake (206-03, Description and Operation),
Front Disc Brake (206-03, Description and Operation),
Rear Disc Brake (206-04, Description and Operation),
Rear Disc Brake (206-04, Description and Operation),
Rear Disc Brake (206-04, Description and Operation),
Parking Brake (206-05 Parking Brake and Actuation, Description and Operation), Parking Brake (206-05 Parking Brake and Actuation, Description and Operation), Parking Brake (206-05 Parking Brake and Actuation, Description and Operation), Hydraulic Brake Actuation (206-06 Hydraulic Brake Actuation, Description and Operation), Hydraulic Brake Actuation (206-06 Hydraulic Brake Actuation, Description and Operation), Hydraulic Brake Actuation (206-06 Hydraulic Brake Actuation, Description and Operation), Brake Booster (206-07 Power Brake Actuation, Description and Operation), Brake Booster (206-07 Power Brake Actuation, Description and Operation), Brake Booster (206-07, Description and Operation).

Inspection and Verification

Visually examine the front and rear wheel and tire assemblies for damage such as uneven wear patterns, tread worn out or
sidewall damage. Verify the tires are the same size, type and, where possible, same manufacturer. Replace the damaged
wheel or excessively worn tire.
Wheels and tires must be cleared of any foreign matter and tire pressures adjusted to the correct specification.

If the tires exhibit uneven wear or feathering, the cause must be corrected. Check the steering and suspension components for
damage or wear and, if necessary, check and adjust front wheel alignment. REFER to: (204-00 Suspension System - General
Information)
Specifications (Specifications), Front Toe Adjustment (General Procedures).
Visual Inspection
Mechanical Electrical
Brake master cylinder
Brake caliper piston(s)
Brake discs
Wheel bearings
Brake pads
Power brake booster
Brake pedal linkage
Brake booster vacuum hose
Tires
Debris
Parking brake actuator
Parking brake module
Parking brake switch
Damaged or corroded wiring harness
Brake master cylinder fluid level switch Road Test

Carry out a road test to compare actual vehicle braking performance with the performance standards expected by the driver.
The ability of the test driver to make valid comparisons and detect performance deficiencies will depend on experience.

The driver should have a thorough knowledge of brake system operation and accepted general performance guidelines to make
good comparisons and detect performance concerns.

An experienced brake technician will always establish a route that will be used for all brake diagnosis road tests. The roads
selected will be reasonably smooth and level. Gravel or bumpy roads are not suitable because the surface does not allow the
tires to grip the road equally. Crowned roads should be avoided because of the large amount of weight shifted to the low set
of wheels on this type of road. Once the route is established and consistently used, the road surface variable can be
eliminated from the test results.

Before a road test, obtain a complete description of the customer concerns or suspected condition. From the description, the
technician's experience will allow the technician to match possible causes with symptoms. Certain components will be tagged
as possible suspects while others will be eliminated by the evidence. More importantly, the customer description can reveal
unsafe conditions which should be checked or corrected before the road test. The description will also help form the basic
approach to the road test by narrowing the concern to specific components, vehicle speed or conditions.

Begin the road test with a general brake performance check. Keeping the description of the concern in mind, test the brakes at
different vehicle speeds using both light and heavy pedal pressure. To determine if the concern is in the front or rear braking
system, use the brake pedal and then use the parking brake control. If the condition (pull, vibration, pulsation) occurs only
with the parking brake, the concern is in the rear brake system.