2010 JAGUAR XFR front brake

DTC Description Possible Causes Action U0423-00 Invalid Data Received
Invalid message from the
Check the Instrument Cluster for related DTCs From Instrument Panel Control Module - No sub instrument panel control and refer to the relevant DTC index type information module U0433-64
Invalid Data Received
From Cruise Control
Front Distance Range
Sensor - Signal
plausibility failure
Incorrect apply request
from the speed control
module when the
conditions were not correct
NOTE: The Park Brake Module has received a
request to apply the parkbrake from the Adaptive Speed
Control module but the conditions were not correct for
the apply to take place. E.g. the vehicle was moving. The
module will ignore the request but this DTC is logged for
safety reference

Check the Speed Control Module for related DTCs
and refer to the relevant DTC index U2001-68
Reduced System
Function - Event
information
Invalid or missing message
from Anti-Lock Braking
System with ignition OFF
and vehicle speed > 3Kph
NOTE: There has been invalid or missing data
detected from the Anti-Lock Brake System Control
Module. This DTC may be logged if the ignition is
switched off with the vehicle still moving. This DTC will
never be recorded as confirmed and is stored for
historical analysis only

Check the Speed Control Module for related DTCs
and refer to the relevant DTC index U2005-64
Vehicle Speed - Signal
implausibility failure
Implausible speed
message from the
Anti-Lock Braking System
control module
NOTE: Implausible speed is defined as passing
from high speed dynamic mode to static mode without
passing through low speed dynamic mode

Check the Anti-Lock Braking System Control
Module for related DTCs and refer to the relevant
DTC index U200D-4B
Control Module Output
Power A - Over
temperature
Actuator FET circuit over
current / over temperature
Refer to electrical wiring diagrams and check the
actuator circuit for low resistance. Repair circuit
faults or install a new actuator as required U2011-11
Motor - Circuit short to
ground
Electric park brake motor
output short to ground
Refer to electrical wiring diagrams and check the
actuator circuit for short to ground. Repair circuit
faults or install a new actuator as required U2011-12
Motor - Circuit short to
battery
Electric park brake motor
output short to power
Refer to electrical wiring diagrams and check the
actuator circuit for short to power. Repair circuit
faults or install a new actuator as required U2011-13 Motor - Circuit open
Electric park brake motor
output open circuit
Refer to electrical wiring diagrams and check the
actuator circuit for open circuit. Repair circuit
faults or install a new actuator as required U3000-47
Control Module -
Watchdog/safety micro
controller failure
Defective ECU
Lost communication with secondary micro
processor, check power and ground connections to
module. Clear DTC, perform battery reset and
retest system. If DTC reoccurs suspect the
Parking Brake control module
Refer to the Warranty Policy and Procedures
manual if a module/component is suspect U3002-81
Vehicle Identification
Number (VIN) - Invalid
serial number
The Park Brake Module has
previously been installed
to another vehicle
Check and install the original, or a new Park Brake
Module
Refer to the Warranty Policy and Procedures
manual if a module/component is suspect U3003-62
Battery Voltage - Signal
compare failure
Power distribution fault
Wiring harness fault
There is a difference of more than 2 volts
between the power supply to the parking brake
module and the battery voltage value broadcast
on CAN. Check other control modules for battery
voltage related DTCs. Refer to the electrical
circuit diagrams and check the power and ground

DTC Description Possible Causes Action B10AE-64
Headlamp Leveling
Motor - Signal
plausibility failure
Signal plausibility
failure voltage out of
range
Refer to the electrical circuit diagrams and check the
Headlamp Leveling Motor circuits for failure. Disconnect one
headlamp connector, clear DTC and re-test. If DTC cleared,
suspect Headlamp Leveling Module or circuits to the
disconnected side. If DTC remains, reconnect first
headlamp and disconnect second, clear DTC and re-test. If
DTC cleared, suspect Headlamp Leveling Module or circuits
to the disconnected side. If DTC remains, suspect common
circuits of the failure. Refer to the electrical circuit diagrams
and check as required B1A59-11
Sensor 5 Volt
Supply - Circuit
short to ground
Headlamp Leveling
Sensor 5 volt supply
circuit short to ground
Refer to electrical circuit diagrams and check Headlamp
Leveling Sensor 5 volt supply circuit for short to ground B1A59-12
Sensor 5 Volt
Supply - General
electrical failure
Headlamp Leveling
Sensor 5 volt supply
circuit short to power
Refer to electrical circuit diagrams and check Headlamp
Leveling Sensor 5 volt supply circuit for short to power C1A04-11
Right Front Height
Sensor - Circuit
short to ground
Right front Height
Sensor circuit short to
ground
Refer to the electrical circuit diagrams, and check Right
Front Height Sensor circuit for short to ground C1A04-15
Right Front Height
Sensor - Circuit
short to battery or
open
Right front Height
Sensor circuit short to
power or open circuit
Check Right Front Height Sensor connector for security.
Refer to the electrical circuit diagrams, and check Right
Front Height Sensor circuit for short to power or open circuit C1A04-64
Right Front Height
Sensor - Signal
plausibility failure
Sensor (PWM) Signal
out of range
NOTE: This DTC may be logged if the vehicles wheels have
been raised from the floor

Check the location, security and mechanical operation of
the Height Sensor. Refer to the electrical circuit diagrams,
and check Right Front Height Sensor signal circuit for fault C1A06-11
Right Rear Height
Sensor - Circuit
short to ground
Right rear Height
Sensor circuit short to
ground
Refer to the electrical circuit diagrams, and check Right
Rear Height Sensor circuit for short to ground C1A06-15
Right Rear Height
Sensor - Circuit
short to battery or
open
Right rear Height
Sensor circuit short to
power or open circuit
Check Right Rear Height Sensor connector for security. Refer
to the electrical circuit diagrams, and check Right Rear
Height Sensor circuit for short to power or open circuit C1A06-64
Right Rear Height
Sensor - Signal
plausibility failure
Sensor (PWM) Signal
out of range
NOTE: This DTC may be logged if the vehicles wheels have
been raised from the floor

Check the location, security and mechanical operation of
the Height Sensor. Refer to the electrical circuit diagrams,
and check Right Rear Height Sensor signal circuit for fault U0001-88
High Speed CAN
Communication Bus
- Bus off
CAN Bus Off
CAN Bus Circuit fault
Check other modules for stored DTCs. Carry out the CAN
Network Integrity test using the manufacturer approved
diagnostic system U0101-00
Lost Communication
with TCM - No sub
type information
Lost communication
with the Transmission
Control Module
CAN network fault
Check the Transmission Control Module for stored DTCs.
Using the manufacturer approved diagnostic system,
complete the CAN Network Integrity test. Refer to the
electrical circuit diagrams and check the CAN network
between the Headlamp Leveling Module and the
Transmission Control Module U0121-00
Lost Communication
With Anti-Lock
Brake System (ABS)
Control Module - No
sub type
information
Lost communication
with the Anti-lock
Brake System Module
CAN network fault
Check the Anti-lock Brake System Module for stored DTCs.
Using the manufacturer approved diagnostic system,
complete the CAN Network Integrity test. Refer to the
electrical circuit diagrams and check the CAN network
between the Headlamp Leveling Module and the Anti-lock
Brake System Module

DTC Description Possible Causes Action Battery voltage at electric
steering column lock control
module too low
Electric steering column lock
control module, instrument
cluster, central junction box
fault 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 B100D-96
Column Lock
Authorisation -
Component internal
failure
Battery voltage at electric
steering column lock control
module too low
Torque load on steering
column
CAN fault
Electric steering column lock
control module - Internal
failure
Clear DTC, repeatedly lock and unlock car using
the key fob and retest
If fault persists, check that the vehicle battery
supply voltage is between 9-16 volts. Rectify as
required
Ensure the column lock bolt movement is not
obstructed or restricted (the parked position of
the road wheels may be exerting a turning force
through the steering column, preventing the lock
from releasing. The steering wheel may need to
be held against the force to allow the column
lock to release). Clear DTC, repeatedly lock and
unlock car using the key fob and retest
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 and install a new electric
steering column lock control module as required B1024-87
Start Control Unit -
Missing message
Smart card docking station
failure - slave node not
responding
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Refer to the electrical circuit diagrams
and check the smart card docking station LIN
circuit for short, open circuit. Suspect the smart
card docking station, check and install a new
docking station as required, refer to the new
module/component installation note at the top
of the DTC Index B1046-11
Front Fog Lamp Control
Switch - Circuit short to
ground
Fog lamp switch circuit -
short to ground
Refer to the electrical circuit diagrams and check
fog lamp switch circuit for short to ground B1046-15
Front Fog Lamp Control
Switch - Circuit short to
battery or open
Fog lamp switch circuit -
short to power, open circuit
Refer to the electrical circuit diagrams and check
fog lamp switch circuit for short to power, open
circuit B1048-11 Brake Fluid Level Switch
- Circuit short to ground
Brake fluid level switch
circuit - short to ground
Refer to the electrical circuit diagrams and check
brake fluid level switch circuit for short to ground

DTC Description Possible Causes Action speed control sensor, check and install a new sensor
as required, refer to the new module/component
installation note at the top of the DTC Index C1A67-96 Forward Looking Sensor
- Component internal
Failure
Internal hardware failure
Suspect the speed control sensor. Check and install a
new sensor as required, refer to the new
module/component installation note at the top of
the DTC Index C1A67-97 Forward Looking Sensor
- Component or system
operation obstructed or
blocked
Sensor reduced visibility
Check for blockage in front of radar. Note: This DTC
will be cleared automatically when environmental
conditions allow C1A67-98 Forward Looking Sensor
- Component or system
over temperature
Speed control sensor
internal temperature
exceeded threshold
Allow system to cool. Note: This DTC will be cleared
automatically when environmental conditions allow P174E-81
Output Shaft
Speed/ABS Wheel
Speed Correlation -
Invalid serial data
received
Follow speed is
mis-calculated to too
high a value
Clear DTC and re-test U0001-88
High Speed CAN
Communication Bus -
Bus off
Vehicle CAN Bus off
condition
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Carry out CAN network integrity tests using
the manufacturer approved diagnostic system U0100-00
Lost Communications
With ECM/PCM "A" - No
sub type information
ECM missing message
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check ECM for related DTCs and refer to the
relevant DTC Index U0101-00
Lost Communications
With TCM - No sub
type information
TCM missing message
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check TCM for related DTCs and refer to the
relevant DTC Index U0103-00
Lost Communication
With Gear Shift Control
Module A - No sub type
information
No sub type information
Refer to the electrical circuit diagrams and check the
power and ground connections to the Transmission
Shift Module. Using the manufacturer approved
diagnostic system, complete a CAN network integrity
test. Refer to the electrical circuit diagrams and
check the CAN network between the Transmission
Shift Module and Speed Control Module U0103-87
Lost Communication
With Gear Shift Module
- Missing Message
Transmission shift
module missing message
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check transmission shift module for related
DTCs and refer to the relevant DTC Index U0121-00
Lost Communication
With Anti-lock Brake
System (ABS) Control
Module - No sub type
information
ABS missing message
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check ABS for related DTCs and refer to the
relevant DTC Index U0128-00
Lost Communications
With Park Brake Module
- No sub type
information
Parking brake missing
message
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check parking brake module for related
DTCs and refer to the relevant DTC Index U0155-00
Lost Communications
With Instrument Panel
Cluster (IPC) Control
Module - No sub type
information
Instrument cluster
missing message
Carry out any pinpoint tests associated with this
DTC using the manufacturer approved diagnostic
system. Check instrument cluster for related DTCs
and refer to the relevant DTC Index

Rear Suspended Tow


When the vehicle is being recovered by rear suspended tow:

The ignition key must be removed from the ignition switch to lock the steering.
The rear wheels must be correctly positioned in the lifting cradle and securely tied down.
Emergency Towing


WARNING: If the engine is not running, the steering will become heavy and the force necessary to effectively apply the
brakes will be greatly increased.


CAUTION: A vehicle with a defective transmission must be towed by rear suspended tow.
When the vehicle is being towed on its own wheels:

Local regulations for the towing of vehicles must be followed. In some countries the registration number of the towing
vehicle and an 'On Tow' sign or warning triangle must be displayed at the rear of the towed vehicle.
The gear selector lever must be in Neutral.
The ignition switch must be in position II to release the steering lock and make the direction indicators, horn and stop
lamps operate.
A distance of 0,8 km (0.5 mile) must not be exceeded.
A speed of 48 km/h (30 mph) must not be exceeded.
The tow rope must be attached to the front towing eye. www.JagDocs.com

Noise Conditions

Gear noise is typically a howling or whining due to gear damage or incorrect bearing preload. It can occur at various
speeds and driving conditions, or it can be continuous
Chuckle is a particular rattling noise that sounds like a stick against the spokes of a spinning bicycle wheel. It occurs
while decelerating from approximately 64 km/h (40 miles/h) and can usually be heard all the way to a stop. The
frequency varies with vehicle speed
Knock is very similar to chuckle, though it may be louder and occurs on acceleration or deceleration. The tear down will
disclose what has to be corrected
Check and rule out tires, exhaust and trim items before disassembling the transmission to diagnose and correct gear noise.

The noises described under Road Test usually have specific causes that can be diagnosed by observation as the unit is
disassembled. The initial clues are the type of noise heard on the road test and the driving conditions.

Vibration Conditions


wear. NOTE: New Constant Velocity (CV) joints should not be installed unless disassembly and inspection revealed unusual

Clicking, popping or grinding noises may be caused by the following:

Cut or damaged CV joint boots resulting in inadequate or contaminated lubricant in the outboard or inboard CV joint
bearing housings
Loose CV joint boot clamps
Another component contacting the rear drive half shaft
Worn, damaged or incorrectly installed wheel bearing, suspension or brake component
Vibration at highway speeds may be caused by the following:
Out-of-balance front or rear wheels
Out-of-round tires
Driveline imbalance
Driveline run-out (alignment)


NOTE: Rear drive half shafts are not balanced and are not likely to contribute to rotational vibration disturbance.
Shudder or vibration during acceleration (including from rest) may be caused by the following:
Driveline alignment
Excessively worn or damaged outboard or inboard CV joint bearing housing
Excessively high CV joint operating angles caused by incorrect ride height. Check ride height, verify correct spring rate
and check items under Inoperative Conditions
Excessively worn driveshaft components

Leakage Conditions

1. Inspect the CV joint boots for evidence of cracks, tears or splits.

2. Inspect the underbody for any indication of grease splatter in the vicinity of the rear drive half shaft, outboard and
inboard CV joint boot locations, which is an indication of CV joint boot or CV joint boot clamp damage.
3. Inspect the inboard CV joint bearing housing seal for leakage.

Inoperative Conditions

If a CV joint or rear drive half shaft pull-out occurs, check the following:

suspension components for correct location, damage or wear
bushings for wear
subframe for damage
bent or worn components
- Stabilizer bar link
- Left-hand rear suspension lower arm and bushing
- Right-hand rear suspension lower arm and bushing
- Rear wheel hub and rear drive half shaft

Road Test

A gear-driven unit will produce a certain amount of noise. Some noise is acceptable and may be audible at certain speeds or
under various driving conditions as on a newly paved blacktop road. The slight noise is in no way detrimental and must be
considered normal.

The road test and customer interview (if available) provide information needed to identify the condition and give direction to
the correct starting point for diagnosis.
1. Make notes throughout the diagnosis routine. Make sure to write down even the smallest piece of information, because

it may turn out to be the most important.

2. Do not touch anything until a road test and a thorough visual inspection of the vehicle have been carried out. Leave the
tire pressures and vehicle load just where they were when the condition was first observed. Adjusting tire pressures,
vehicle load or making other adjustments may reduce the conditions intensity to a point where it cannot be identified
clearly. It may also inject something new into the system, preventing correct diagnosis.

3. Make a visual inspection as part of the preliminary diagnosis routine, writing down anything that does not look right.
Note tire pressures, but do not adjust them yet. Note leaking fluids, loose nuts and bolts, or bright spots where
components may be rubbing against each other. Check the luggage compartment for unusual loads.
4. Road test the vehicle and define the condition by reproducing it several times during the road test.

5. Carry out the Road Test Quick Checks as soon as the condition is reproduced. This will identify the correct diagnostic
procedure. Carry out the Road Test Quick Checks more than once to verify they are providing a valid result. Remember,
the Road Test Quick Checks may not tell where the concern is, but they will tell where it is not.

Road Test Quick Checks

1. 24-80 km/h (15-50 miles/h): With light acceleration, a moaning noise is heard and possibly a vibration is felt in the
front floor pan. It is usually worse at a particular engine speed and at a particular throttle setting during acceleration at
that speed. It may also produce a moaning sound, depending on what component is causing it. Refer to Tip-In Moan in
the Symptom Chart.

2. Acceleration/deceleration: With slow acceleration and deceleration, a shake is sometimes noticed in the steering
wheel/column, seats, front floor pan, front door trim panel or front end sheet metal. It is a low frequency vibration
(around 9-15 cycles per second). It may or may not be increased by applying brakes lightly. Refer to Idle Boom/Shake
/Vibration in the Symptom Chart.

3. High speed: A vibration is felt in the front floor pan or seats with no visible shake, but with an accompanying sound or
rumble, buzz, hum, drone or booming noise. Coast with the clutch pedal depressed or shift control selector lever in
neutral and engine idling. If vibration is still evident, it may be related to wheels, tires, front brake discs, wheel hubs
or front wheel bearings. Refer to High Speed Shake in the Symptom Chart.

4. Engine rpm sensitive: A vibration is felt whenever the engine reaches a particular rpm. It will disappear in neutral
coasts. The vibration can be duplicated by operating the engine at the problem rpm while the vehicle is stationary. It
can be caused by any component, from the accessory drive belt to the torque converter which turns at engine speed
when the vehicle is stopped. Refer to High Speed Shake in the Symptom Chart.

5. Noise/vibration while turning: Clicking, popping, or grinding noises may be due to a worn, damaged, or incorrectly
installed front wheel bearing, rear drive half shaft or CV joint.

6. Noise/vibration that is road speed relative: This noise/vibration can be diagnosed independent of engine speed or gear
selected (engine speed varies but torque and road speed remain constant). The cause may be a rear drive
axle/differential whine.
Road Conditions

An experienced technician will always establish a route that will be used for all NVH diagnosis road tests. The road selected
should be reasonably smooth, level and free of undulations (unless a particular condition needs to be identified). A smooth
asphalt road that allows driving over a range of speeds is best. Gravel or bumpy roads are unsuitable because of the additional
road noise produced. Once the route is established and consistently used, the road noise variable is eliminated from the test
results.


NOTE: Some concerns may be apparent only on smooth asphalt roads.

If a customer complains of a noise or vibration on a particular road and only on a particular road, the source of the concern
may be the road surface. If possible, try to test the vehicle on the same type of road.

Vehicle Preparation

Carry out a thorough visual inspection of the vehicle before carrying out the road test. Note anything which is unusual. Do not
repair or adjust any condition until the road test is carried out, unless the vehicle is inoperative or the condition could pose a
hazard to the technician.
After verifying the condition has been corrected, make sure all components removed have been installed.

Lift Test

After a road test, it is sometimes useful to do a similar test on a lift.

When carrying out the high-speed shake diagnosis or engine accessory vibration diagnosis on a lift, observe the following
precautions:


WARNING: If only one drive wheel is allowed to rotate, speed must be limited to 55 km/h (35 miles/h) indicated on the
speedometer since actual wheel speed will be twice that indicated on the speedometer. Speed exceeding 55 km/h (35 miles/h)
or allowing the drive wheel to hang unsupported could result in tire disintegration, differential failure, constant velocity joint

Front Suspension (204-01 Front Suspension, Description and Operation), Front Suspension (204-01 Front Suspension, Description and Operation), Rear Suspension (204-02 Rear Suspension, Description and Operation), Rear Suspension (204-02 Rear Suspension, Description and Operation), Rear Suspension (204-02 Rear Suspension, Description and Operation).
Inspection and Verification

1. Verify the customer concern by carrying out a road test on a smooth road. If any vibrations are apparent, refer to
section 100-04 Noise, Vibration and Harshness.
2. Visually inspect for obvious signs of damage and system integrity.



3. If an obvious cause for an observed or reported condition is found, correct the cause (if possible) before proceeding to
the next step.
4. If the fault is not visually evident, verify the symptom and refer to the following Symptom Chart.

Symptom Chart

Symptom Possible Sources Action Crabbing * Incorrect rear thrust angle. * Check the rear toe adjustment.
REFER to: Rear Toe Adjustment (204-00 Suspension System - General Information, General Procedures). * Front or rear suspension components.
* Inspect the front and rear suspension systems. Repair or
install new suspension components as necessary. * Drive axle damaged. * Install a new rear drive axle/differential.
REFER to: Axle Assembly - V6 3.0L Petrol (205-02 Rear Drive Axle/Differential, Removal and Installation). Drift/Pull * Unequal tire pressure.
* Check and adjust the tire pressures. Inspect the tire for
excessive wear.
REFER to: Specifications (204-04 Wheels and Tires, Specifications). * Incorrect wheel alignment.
* Check and adjust the wheel alignment. REFER to:
(204-00 Suspension System - General Information)
Front Toe Adjustment (General Procedures), Rear Toe Adjustment (General Procedures), Camber and Caster Adjustment (General Procedures). * Tires.
* Check and adjust the tire pressures. Inspect the tire for
excessive wear.
REFER to: Specifications (204-04 Wheels and Tires, Specifications). * Unevenly loaded or overloaded vehicle. * Notify the customer of incorrect vehicle loading. * Damaged steering components. * Check the steering system. * Brake drag. * Check the brakes.
REFER to: Brake System (206-00 Brake System - General Information, Diagnosis and Testing). Mechanical

Damaged tires
Wheel bearing(s)
Loose or damaged front or rear suspension components
Loose, damaged or missing suspension fastener(s)
Incorrect spring usage
Damaged or sagging spring(s)
Damaged or leaking shock absorber(s)
Damaged or leaking strut(s)
Worn or damaged suspension bushing(s)
Loose, worn or damaged steering system components
Damaged axle components Visual Inspection Chart