Electrical JAGUAR XFR 2010 1.G Workshop Manual

Published: 16-Sep-2013
Noise, Vibration and Harshness - Noise, Vibration and Harshness (NVH)
Diagnosis and Testing

Principle of Operation

For a detailed description of Noise, Vibration and Harshness issues, refer to the Description and Operation section of the
workshop manual.
REFER to: Noise, Vibration and Harshness (NVH) (100-04 Noise, Vibration and Harshness, Description and Operation).
Inspection and Verification

1. Verify the customer's concerns by operating the vehicle to duplicate the condition.

2. Visually inspect the vehicle to determine any obvious cause(s) of the concern(s).

3. If the inspection reveals obvious causes that can be readily identified, repair as necessary.
4. If the concern(s) remains after the inspection, determine the symptom(s) and refer to the Symptom Chart.

How To Use This Diagnostic Procedure Section

Noise, vibration and harshness (NVH) concerns have become more important as vehicles have become more sensitive to
these vibrations. This section is designed as an aid to identifying these situations
The section provides diagnostic procedures based on symptoms. If the condition occurs at high speed, for instance, the
most likely place to start is under High Speed Shake
The road test procedure will tell how to sort the conditions into categories and how to tell a vibration from a shake
A series of Road Test Quick Checks is provided to make sure that a cause is either pinpointed or eliminated
Name the condition, proceed to the appropriate section and locate the correct diagnosis. When the condition is
identified, the job is partly done
Follow the diagnostic procedure as outlined
Quick Checks are described within the step, while more involved tests and adjustments are outlined in General
Procedures
Always follow each step exactly and make notes to recall important findings later

Customer Interview

The road test and customer interview (if available) provide information that will help identify the concerns and will provide
direction to the correct starting point for diagnosis.

Identify the Condition
NVH problems usually occur in a number of areas:
tires
engine accessories
suspension
driveline
air leakage (wind noise)
squeaks and rattles
heating ventilation and air conditioning (HVAC)
electrical (e.g. motor noise)
transmission
engine

It is important, therefore, that an NVH concern be isolated into its specific area(s) as soon as possible. The easiest and
quickest way to do this is to carry out the Road Test as outlined.

Noise Diagnostic Procedure

Non-Axle Noise

The five most important sources of non-axle noise are exhaust, tires, roof racks, trim and mouldings, and transmission.

Therefore, make sure that none of the following conditions are the cause of the noise before proceeding with a driveline tear
down and diagnosis.

Under certain conditions, the pitch of the exhaust may sound very much like gear noise. At other times, it can be
mistaken for a wheel bearing rumble
Tires, especially snow tires, can have a high pitched tread whine or roar, similar to gear noise. Radial tires, to some
degree, have this characteristic. Also, any non-standard tire with an unusual tread construction may emit a roar or
whine type noise
Trim and mouldings can also cause whistling or a whining noise
Clunk may be a metallic noise heard when the automatic transmission is engaged in reverse or drive, or it may occur
when the throttle is applied or released. It is caused by backlash somewhere in the driveline
Bearing rumble sounds like marbles being tumbled. This condition is usually caused by a damaged wheel bearing

Upper Control Arm
The forged-aluminum upper control arm is a wishbone design and connects to the vehicle body through two plain bushes, and
links to the swan neck wheel knuckle by an integral ball joint. The upper control arm is inclined to provide anti-dive
characteristics under heavy braking, while also controlling geometry for vehicle straight-line stability.

Lower Control Arm

The forged aluminum lower control arms are of the wishbone design; the arms separate to allow for optimum bush tuning:

The rear lateral control arm is fitted with a bush at its inner end which locates between brackets on the subframe. The
arm is secured with an eccentric bolt which provides the adjustment of the suspension camber geometry. The outer end
of the control arm has a tapered hole which locates on a ball joint fitted to the wheel knuckle. An integral clevis bracket
on the forward face of the lateral control arm allows for the attachment of the forward control arm. A bush is fitted
below the clevis bracket to provide for the attachment of the stabilizer bar link. A cross-axis joint is fitted to a
cross-hole in the control arm to provide the location for the clevis attachment of the spring and damper assembly.
The forward control arm is fitted with a fluid-block rubber bush at its inner end which locates between brackets on the
subframe. The arm is secured with an eccentric bolt which provides adjustment of the castor and camber geometry. The
outer end of the control arm is fitted with a cross-axis joint and locates in the integral clevis bracket on the lateral
control arm.

Wheel Knuckle

The cast aluminum wheel knuckle is a swan neck design and attaches to the upper control arm and lower lateral control arm.
The lower lateral control arm locates on a non serviceable ball-joint integral with the wheel knuckle. The lower boss on the
rear of the knuckle provides for the attachment of the steering gear tie-rod ball joint.
The wheel knuckle also provides the mounting locations for the:
wheel hub and bearing assembly
the wheel speed sensor (integral to the wheel hub and bearing assembly)
brake caliper and disc shield.

Stabilizer Bar

The stabilizer bar is attached to the front of the subframe with bushes and mounting brackets. The pressed steel mounting
brackets locate over the bushes and are attached to the cross member with bolts screwed into threaded locations in the
subframe. The stabilizer bar has crimped, 'anti-shuffle' collars pressed in position on the inside edges of the bushes. The
collars prevent sideways movement of the stabilizer bar.

The stabilizer bar is manufactured from 32mm diameter tubular steel on supercharged models and 31mm diameter tubular
steel on diesel and normally aspirated models and has been designed to provide particular characteristics in maintaining roll
rates, specifically in primary ride comfort.

Each end of the stabilizer bar curves rearwards to attach to a ball joint on a stabilizer link. Each stabilizer link is secured to a
bush in the lower lateral arm with a bolt and locknut. The links allow the stabilizer bar to move with the wheel travel providing
maximum effectiveness.

The only difference between the front stabilizer bars, in addition to the diameter, is in the shape to accommodate engine
variant:

a slightly curved bar, between bush centers, for V6 diesel (31 mm dia) and V8 gasoline supercharged (32 mm dia),
a straight bar, between bush centers, for V6 and V8 normally aspirated gasoline engines (31 mm dia).
Spring and Damper Assembly

The spring and damper assemblies are located between the lower lateral arm and the front suspension housing in the inner
wing. Dependant on vehicle model there are three types of coil spring and damper available:
a standard oil passive damper (All models except supercharged),
an adaptive damper, also known as Computer Active Technology Suspension (CATS) on 4.2L supercharged vehicles up to
2010MY, For additional information refer to Vehicle Dynamic Suspension 4.2L.
a continuously variable adaptive damper, also known as Adaptive Dynamics System on 5.0L supercharged vehicles from
2010MY. For additional information refer to Vehicle Dynamic Suspension 5.0L.

The dampers are a monotube design with a spring seat secured by a circlip onto the damper tube. The damper's lower
spherical joint is an integral part of the lateral lower control-arm, and the damper takes the form of a clevis-end, which
straddles the spherical joint.

The damper piston is connected to a damper rod which is sealed at its exit point from the damper body. The threaded outer
end of the damper rod locates through a hole in the top mount. A self locking nut secures the top mount to the damper rod.
The damper rod on the adaptive damper has an electrical connector on the outer end of the damper rod.

Supercharged 4.2L vehicles up to 2010MY: The adaptive damper functions by restricting the flow of hydraulic fluid through
internal galleries in the damper's piston. The adaptive damper has a solenoid operated valve, which when switched allows a
greater flow of hydraulic fluid through the damper's piston. This provides a softer damping characteristic from the damper. The
adaptive damper defaults to a firmer setting when not activated. The solenoid is computer controlled and can switch between
soft and hard damping settings depending on road wheel inputs and vehicle speed.

Supercharged 5.0L vehicles from 2010MY: The variable damper functions by adjustment of 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

4. Connect the front shock absorber electrical connector.













All vehicles

5. Secure the fuse box.
6. Secure the coolant expansion tank.
Tighten to 10 Nm.



















7. Raise the vehicle.

the aluminum wheel knuckle via an integral ball-joint.

Lower Control Arm

The aluminum lower arm locates to the subframe via one cross-axis joint and one plain rubber bush, and to the wheel knuckle
via a second plain rubber bush.
The rear of the control arm has mounting points for the damper and the stabilizer link.

Toe-Link

The toe-link is located between the wheel knuckle and brackets on the subframe.

The toe-link comprises an inner rod with integral axial ball joint. The inner ball joint has a threaded spigot which locates in a
bracket on the subframe and is secured with a locknut. The rod has an internal thread which accepts the outer rod.

The outer rod has a cross-axis joint at its outer end which is located in a clevis on the wheel knuckle, and is secured with a
bolt and locknut.

The length of the toe-link can be adjusted by rotating the inner rod. This allows for adjustment of the toe angle for the rear
wheel. Once set the inner rod can be locked in position by tightening a locknut on the outer rod against the inner rod.

Wheel Knuckle

The cast aluminum wheel knuckle attaches to:
the upper control arm via a ball-joint located in the arm,
the lower control arm via a plain rubber bush located in the arm,
the toe-link via a cross-axis joint located in the toe link.
The wheel knuckle also provides the mounting locations for the:
wheel hub assembly,
wheel bearing,
wheel speed sensor,
brake caliper,
and disc shield.

Stabilizer Bar

The solid construction stabilizer bar and bushes have been designed to provide particular characteristics in maintaining roll
rates, specifically in primary ride comfort. There are six derivatives of rear stabilizer bar, with different diameters, to support
the various powertrains:
V6 gasoline - 12.7 mm solid bar
V8 4.2L and 5.0L gasoline - 13.6 mm solid bar
V6 2.7L diesel -14.5 mm solid bar
V6 3.0L diesel - 14.5 mm solid bar
V6 3.0L diesel with Adaptive Damping – 16mm tubular
V8 4.2L gasoline supercharged – 16mm tubular
V8 5.0L gasoline supercharged
- SV8 - 17mm tubular
- XFR - 18mm tubular

The stabilizer bar is attached to the top of the subframe with two bushes and mounting brackets. The stabilizer bar has
crimped, 'anti-shuffle' collars pressed in position on the inside edges of the bushes. The collars prevent sideways movement of
the stabilizer bar.

Each end of the stabilizer bar curves rearward to attach to a ball joint on each stabilizer link. Each link is attached via a
second ball joint to a cast bracket on the lower control arm. The links allow the stabilizer bar to move with the wheel travel
providing maximum effectiveness.

Spring and Damper Assembly

The spring and damper assembly are attached to cast brackets on the lower control arms and to the vehicle body by four studs
secured by locking nuts. Dependant on vehicle model there are three types of coil spring and damper available:
a standard oil passive damper (All models except supercharged),
an adaptive damper, also known as Computer Active Technology Suspension (CATS) on 4.2L supercharged vehicles up to
2010MY, For additional information refer to Vehicle Dynamic Suspension 4.2L.
a continuously variable adaptive damper, also known as Adaptive Dynamics System on 5.0L supercharged vehicles from
2010MY. For additional information refer to Vehicle Dynamic Suspension 5.0L.

The dampers are a monotube design with a spring located by a circlip onto the damper tube. The lower end of the damper has
a spherical joint which locates in the lower control arm and is secured with a bolt.

The damper piston is connected to a damper rod which is sealed at its exit point from the damper body. The threaded outer
end of the damper rod locates through a hole in the top mount. A self locking nut secures the top mount to the damper rod.
The damper rod on the adaptive damper has an electrical connector on the outer end of the damper rod. www.JagDocs.com

Interior Trim and Ornamentation, Removal and Installation).

Vehicles with active damping

2. Disconnect the active suspension damper electrical connector.













All vehicles

3. Remove the shock absorber and spring assembly top mount
nuts. TORQUE: 28 Nm













4. WARNING: Make sure to support the vehicle with axle stands.
Raise the vehicle.

5. Remove the wheel and tire.
For additional information, refer to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation).

7. NOTE: Left-hand shown, right-hand similar.

Release the brake caliper.
Remove and discard the 2 bolts.
Tie the brake caliper aside.












8. NOTE: Left-hand shown, right-hand similar.
Disconnect the rear wheel speed sensor.











9. Disconnect the electronic parking brake actuator electrical
connector.













10. NOTE: Left-hand shown, right-hand similar.

Disconnect both parking brake cables from the rear brake
calipers.

Wheels and Tires - Wheels and Tires
Diagnosis and Testing

Principle of Operation Published: 11-May-2011

For a detailed description of the wheels and tires, refer to the relevant Description and Operation section in the workshop
manual. REFER to: (204-04 Wheels and Tires)

Wheels and Tires (Description and Operation), Wheels and Tires (Description and Operation), Wheels and Tires (Description and Operation).
Inspection and Verification


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.

1. Verify the customer complaint. As much information as possible should be gathered from the driver to assist in
diagnosing the cause(s). Confirm which of the following two warning types (A or B) exist for the Tire Pressure
Monitoring System when the ignition status is switched from 'OFF' to 'ON'
(A) Check Tire Pressure Warnings. A low tire pressure warning will continuously illuminate the low tire
pressure warning lamp. This warning may be accompanied by a text message such as CHECK TIRE PRESSURE
(refer to owner literature). The manufacturer approved diagnostic system does NOT need to be used. Diagnostic
Trouble Codes (DTCs) are not generated with this type of warning. To extinguish this warning it is essential that,
with the ignition 'ON', all vehicle tires (including the spare) are to be set to the correct pressure as stated in the
vehicle handbook or as indicated on the placard label in the passenger/driver door aperture. It is not necessary
to drive the vehicle to clear 'check tire pressure' warnings - just changing the tire pressure causes the tire
low pressure sensor to transmit new data.
NOTES:

The tire pressures should be set by:
Using a calibrated tire pressure gauge
With 'cold' tires (vehicle parked in the ambient temperature for at least one hour, not in a garage with an
artificial ambient temperature)

If the tire pressure warning does not clear within two minutes, it is likely that the gauge is not correctly
calibrated or the tires are 'warm'. Carry out the following steps until the warning has cleared:

Increase the tire pressures by 3psi
Wait a further two minutes
When the tires are at ambient temperature and a calibrated gauge is available, reset the tire pressures
to the correct pressure.

Tire pressure adjustments are part of routine owner maintenance. Tire pressure adjustments that are
required due to a lack of owner maintenance are not to be claimed under vehicle warranty.

(B) System Fault Warnings. When a system fault is detected, the low tire pressure warning lamp will flash for
approximately 75 seconds prior to being continuously illuminated. Visually inspect for obvious signs of damage
and system integrity. Check for the presence of tire low pressure sensors on all four wheels (note: a tire low
pressure sensor has a metal valve stem rather than a rubber one).
2. Check for Diagnostic Trouble Codes (DTCs) and refer to the DTC Index.

NOTE: If the tester fails to communicate with the Tire Pressure Monitoring System module, the following actions are
recommended:

Remove the Tire Pressure Monitoring System power supply fuse, inspect and re-install (if intact). Test to see if
communications have been re-established.

Remove the Tire Pressure Monitoring System ignition fuse (if applicable), inspect and re-install (if intact). Test to see if
communications have been re-established.
With ignition status set to 'ON', refer to the electrical circuit diagrams and check Tire Pressure Monitoring System
module for power, ignition and ground supplies .
Carry out CAN network integrity test using the manufacturer approved diagnostic system.

DTC Index


CAUTION: When probing connectors to take measurements in the course of the pinpoint tests, use the adaptor kit, part
number 3548-1358-00

DTC Description Possible Cause Action C1A62-91
Right Rear Tire Pressure
Sensor and Transmitter
Assembly-parametric
Tire low pressure sensor
has reported out of range
information for pressure,
temperature or acceleration Replace defective tire low pressure sensor, refer to
the relevant section of the workshop manual. C1A62-93
Right Rear Tire Pressure
Sensor and Transmitter
Assembly-no operation
No tire low pressure sensor
can be localized at this
position due to an initiator
or tire low pressure sensor
malfunction GO to Pinpoint Test G. C1A63-11
Right Rear Initiator-circuit
short to ground
Right rear initiator circuit
short to ground GO to Pinpoint Test E. Go to Pinpoint test E1 C1A63-12
Right Rear Initiator-circuit
short to battery
Right rear initiator circuit
short to power GO to Pinpoint Test E. Go to Pinpoint test E2 C1A63-13
Right Rear Initiator-circuit
open
Right rear initiator circuit
open GO to Pinpoint Test E. Go to Pinpoint test E9 C1A64-68
Spare Wheel Tire Pressure
Sensor and Transmitter
Assembly-event information
Information only - vehicle
exposed to extreme
temperature environment
and/or tire low pressure
sensor low battery voltage
event No action required. C1A64-91
Spare Wheel Tire Pressure
Sensor and Transmitter
Assembly-parametric
Tire low pressure sensor
has reported out of range
information for pressure,
temperature or acceleration Replace defective tire low pressure sensor, refer to
the relevant section of the workshop manual. C1A64-93
Spare Wheel Tire Pressure
Sensor and Transmitter
Assembly-no operation
Missing, incompatible or
defective tire low pressure
sensor or radio frequency
receiver GO to Pinpoint Test H. C1D19-11
External Receiver Data
Line-circuit short to ground
Tire pressure monitoring
system radio frequency
receiver or data line circuit
is short to ground GO to Pinpoint Test A. C1D19-12
External Receiver Data
Line-circuit short to battery
Tire pressure monitoring
system radio frequency
receiver or data line circuit
is short to power GO to Pinpoint Test I. C1D19-87
External Receiver Data
Line-missing message
Radio Frequency reception
blocked
Tire pressure monitoring
system radio frequency
receiver faulty
Tire pressure monitoring
system radio frequency
receiver or data line
circuits open circuit
Missing, incompatible or
defective tire low pressure
sensors GO to Pinpoint Test J. U0010-88
Medium Speed CAN
Communication Bus-bus off
CAN bus fault Carry out CAN network integrity tests. Refer to the
electrical wiring diagrams and check CAN network for
short, open circuit. U0140-00
Lost communication with
body control module-no sub
type information
CAN bus fault
Central Junction Box fault Refer to the electrical wiring diagrams and check
Central Junction Box power and ground supplies for
short, open circuit. Carry out CAN network integrity
tests.

DTC Description Possible Cause Action U0142-00
Lost Communication With
Body Control Module "B"
-no sub type information
CAN bus fault
Auxiliary Junction Box fault Refer to the electrical wiring diagrams and check
Auxiliary Junction Box power and ground supplies for
short, open circuit. Carry out CAN network integrity
tests. U0155-00
Lost Communications With
Instrument Panel Cluster
(IPC) Control Module-no
sub type information
CAN bus fault
Instrument cluster fault Refer to the electrical wiring diagrams and check
instrument cluster power and ground supplies for
short, open circuit. Carry out CAN network integrity
tests. U0164-00
Lost Communication With
HVAC Control Module-no
sub type information
CAN bus fault
Climate control module
fault Refer to the electrical wiring diagrams and check
climate control module power and ground supplies for
short, open circuit. Carry out CAN network integrity
tests. U0300-00
Internal Control Module
Software Incompatibility-no
sub type information
Incompatible tire pressure
monitoring system module
for vehicle CAN network Check correct tire pressure monitoring system module
is installed to vehicle specification, otherwise
suspect the Auxiliary Junction Box. U0415-00
Invalid Data Received From
Anti-Lock Brake System
(ABS) Control Module-no
subtype information
Invalid data received from
the Anti-Lock Braking
System Control Module
CAN bus fault
Anti-Lock Braking System
fault Check Anti-Lock Braking System control module and
Instrument Cluster for related DTCs and refer to the
relevant DTC Index. Carry out CAN network integrity
tests. U0424-00
Invalid Data Received From
HVAC Control Module-no
sub type information
HVAC control module fault Check climate control module for related DTCs and
refer to relevant DTC Index. U1A14-49
CAN Initialisation Failure-
internal electronic failure
Tire pressure monitoring
system module fault Install a new tire pressure monitoring module. Refer
to the new module/component installation note at
the top of the DTC Index. U3000-55
Control Module-not
configured
Tire pressure monitoring
system configuration data
is invalid Check and amend the car configuration file. U3000-87
Control Module-missing
message
Tire pressure monitoring
system configuration data
not received Check the Auxiliary Junction Box for related DTCs and
refer to the relevant DTC Index. Carry out CAN
network integrity test. U3002-81
Vehicle Identification
Number - invalid serial data
received
Tire pressure monitoring
system module and vehicle
VIN mis-match
NOTE: This DTC indicates that the tire pressure
monitoring system module is not the original part
installed to the vehicle at the factory/dealer and
could have been substituted. Refer to the note above
the DTC index about replacing components which may
remain under manufacturer warranty.

Re-install the original or a new tire pressure monitoring system control module.
Component Tests

Wheels and Tires

For wheel and tire specification information (pressures, torques, etc).

When replacing wheels or tires, local legislation regarding health and safety must be complied with.

If the vehicle has a Tire Pressure Monitoring System installed, only Jaguar approved wheels and tires should be used. If the
wheel and tire size is changed (for example from R18 to R20) the Tire Pressure Monitoring System module should be updated
with the correct pressure information appropriate to the new wheel and tire set. Update the Tire Pressure Monitoring System
module using the Jaguar approved diagnostic system.
As a general guideline, only replace tires in pairs or as a set, and only with tires of equivalent size and specification.
Confirm the symptoms of the customer complaint.
As much information as possible should be gathered from the driver to assist in diagnosing the cause(s).

1. Before a road test, carry out a basic inspection to make sure the vehicle is safe and legal to drive.

Basic inspection

Correct tire inflation
Legal tire tread depth

TEST CONDITIONS DETAILS/RESULTS/ACTIONS A1: C1D1911 VERIFY EXTERNAL RECEIVER DATA LINE CIRCUIT SHORT TO GROUND 1 Ignition off. 2 Disconnect the Tire Pressure Monitoring System Receiver electrical connector, C3MC45. 3 Measure the resistance between C3MC45, harness side Battery Pin 1 Negative terminal Is the resistance less than 5 Ohms?
Yes
GO to A2.GO to A2. No
GO to A3.GO to A3. A2: C1D1911 CHECK THE EXTERNAL RECEIVER DATA LINE CIRCUIT FOR SHORT CIRCUIT TO GROUND 1 Disconnect the Tire Pressure Monitoring System Control Module electrical connector, C3MC39B. 2 Measure the resistance between C3MC45, harness side Battery Pin 1 Negative terminal Is the resistance less than 5 Ohms?
Yes
REPAIR the short circuit in wiring harness.
No
GO to A4.GO to A4. A3: C1D1911 CHECK THE TIRE PRESSURE MONITORING SYSTEM EXTERNAL RECEIVER FOR SHORT CIRCUIT TO
GROUND 1 Reconnect the Tire Pressure Monitoring System Receiver electrical connector, C3MC45. 2 Using manufacturer approved diagnostic system run On Demand Self Test (0x0202). Is the DTC C1D1911 set?
Yes
Replace Tire Pressure Monitoring Receiver.
No
Investigate possible cause of intermittent failure. A4: C1D1911 CHECK THE TIRE PRESSURE MONITORING SYSTEM CONTROL MODULE FOR SHORT CIRCUIT TO
GROUND 1 Reconnect the Tire Pressure Monitoring System Control Module electrical connector, C3MC39B. 2 Reconnect the Tire Pressure Monitoring System Receiver electrical connector, C3MC45.