2010 JAGUAR XFR sensor

Published: 17-Apr-2014
General Information - Diagnostic Trouble Code (DTC) Index Vehicles With:
6HP28 6-Speed Automatic Transmission, DTC: Transmission Control Module
(TCM)
Description and Operation

Transmission Control Module (TCM) 6 speed (6HP28 Applications)


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 the 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


Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to
the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the
manufacturer-approved diagnostic system)


When performing voltage or resistance tests, always use a digital multimeter accurate to three decimal places and with a
current 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


Inspect connectors for signs of water ingress, and pins for damage and/or corrosion


If diagnostic trouble codes are recorded and, after performing the pinpoint tests, a fault is not present, an intermittent
concern may be the cause. Always check for loose connections and corroded terminals


Where an 'on demand self-test' is referred to, this can be accessed via the 'diagnostic trouble code monitor' tab on the
manufacturers approved diagnostic system


Check DDW for open campaigns. Refer to the corresponding bulletins and SSMs which may be valid for the specific
customer complaint and carry out the recommendations as needed

The table below lists all diagnostic trouble codes (DTCs) that could be logged in the transmission control module, for
additional diagnosis and testing information refer to the relevant diagnosis and testing section
For additional information, refer to: Diagnostics (307-01 Automatic Transmission/Transaxle - V8 5.0L Petrol/V8 S/C 5.0L Petrol,
Diagnosis and Testing).

DTC Description Possible Causes Action P0121-86 Throttle/Pedal Position
Sensor A Circuit
Range/Performance -
Signal invalid
Throttle/Pedal Position
Sensor Fault (Data
received over CAN Bus)
Check Engine Control Module for stored DTCs P0219-86
Engine Overspeed
Condition - Signal invalid
Engine speed too low or
too high (Data received
over CAN Bus)
Check Engine Control Module for stored DTCs P0500-81
Vehicle Speed Sensor A -
Invalid serial data
received
Vehicle Speed Sensor
fault (Data received over
CAN Bus)
Check Dynamic Stability Control module for stored
DTCs P0501-81 Vehicle Speed Sensor A
Vehicle Speed receive
Check Dynamic Stability Control module for stored Range/Performance - Invalid serial data over CAN Bus does not DTCs. Check correct Differential is installed to the received match Transmission vehicle Output-Shaft speed

DTC Description Possible Causes Action P0613-13 TCM Processor - Circuit
Open
Watchdog fault
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0613-14 TCM Processor - Circuit
Short to Ground or Open
Watchdog fault
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0613-21 TCM Processor - Signal
amplitude < minimum
Watchdog fault
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0613-22 TCM Processor - Signal
amplitude > maximum
Watchdog fault
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0613-47 TCM Processor -
Watchdog / safety Micro
controller failure
Watchdog fault
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0613-49 TCM Processor - Internal
electronic failure
Micro controller
component faults
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0613-68 TCM Processor - Event
Information
Watchdog fault
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P061B-02
Internal Control Module Torque Calculation
Performance - General
signal failure
Transmission Control
Module - positive torque
signal not valid
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P061B-26
Internal Control Module Torque Calculation
Performance - Signal rate
of change below
threshold
Transmission Control
Module positive torque
signal not valid
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P062F-04
Internal Control Module
EEPROM Error - System
Internal Failures
EEPROM communication
error
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0642-21
Sensor Reference Voltage
A Circuit Low - Signal
amplitude < minimum
Sensor supply voltage
fault low
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0643-22
Sensor Reference Voltage
A Circuit High - Signal
amplitude > maximum
Sensor supply voltage
fault high
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0657-13
Actuator Supply Voltage
A Circuit / Open - Circuit
Open
Actuator supply (pressure
control valves etc) Open
Circuit
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. www.JagDocs.com

DTC Description Possible Causes Action P0657-1C
Actuator Supply Voltage
A Circuit / Open - Circuit
voltage out of range
Actuator supply (pressure
control valves etc)
voltage plausibility fault
Refer to electrical Circuit diagrams and check
Transmission Control Module connector for signs of
water ingress or damage, check pin 7 for Short to
Power or Ground (should NOT be connected and
harness terminal should have a bung installed). If
no fault identified, suspect the Transmission
Control Module. Check and install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0658-11
Actuator Supply Voltage
A Circuit Low - Circuit
Short to Ground
Actuator supply (pressure
control valves etc)
voltage Short to Ground
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0659-12
Actuator Supply Voltage
A Circuit High - Circuit
Short to Battery
Actuator supply (pressure
control valves etc)
voltage Short to Power
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0667-01
PCM / ECM / TCM Internal Temperature Sensor A
Range/Performance -
General Electrical Failure
General electrical failure
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0667-04
PCM / ECM / TCM Internal Temperature Sensor A
Range/Performance -
System Internal Failures
Internal Electronic Failure
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0667-49
PCM / ECM / TCM Internal Temperature Sensor A
Range/Performance -
Internal electronic failure
Internal electronic failure
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0700-02 Transmission Control
System (MIL Request) -
General signal failure
General Signal failure
Clear DTC, Road test and re-test, Read DTCs and
Investigate as required P0700-22 Transmission Control
System (MIL Request) -
Signal amplitude >
maximum
Double fault from
monitoring of internal
power supply and
pressure
regulator/solenoid control
software
If any of the following DTCs are also present;
P074013, P096712, P273912, P273012, P272112,
P096312, P276312, P097112, suspect the
Transmission Control Module, check and install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0700-75 Transmission Control
System (MIL Request) -
Emergency Position Not
Reachable
Emergency Position Not
Reachable
Clear DTC, Road test and re-test, Read DTCs and
investigate as required P0710-13 Transmission Fluid Temperature Sensor A
Circuit - Circuit Open
Transmission fluid
temperature sensor
Circuit Open Circuit
Clear DTC and test. If code re-detects suspect the
Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0711-01 Transmission Fluid Temperature Sensor A
Circuit
Range/Performance -
General Electrical Failure
General electrical failure
Clear DTC and test. If code re-detects suspect the
Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0711-22 Transmission Fluid Temperature Sensor A
Circuit
Range/Performance -
Signal amplitude >
maximum
Signal amplitude >
maximum. Excessive
jump in temperature
Clear DTC. Carry out cold start road test, continue
driving vehicle until normal operating temperature
is achieved. Reads DTCs, if DTC returns, suspect
the Transmission Control Module. Install a new
Transmission Control Module as required, refer to

DTC Description Possible Causes Action the warranty policy and procedures manual if a
module/component is suspect. P0712-11 Transmission Fluid Temperature Sensor A
Circuit Low - Circuit Short
to Ground
Transmission fluid
temperature sensor
Circuit Short to Ground
Clear DTC and test. If code re-detects suspect the
Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0713-01 Transmission Fluid Temperature Sensor A
Circuit High - General
Electrical Failure
General electrical failure
Clear DTC and test. If code re-detects suspect the
Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0713-12 Transmission Fluid Temperature Sensor A
Circuit High - Circuit
Short to Battery
Transmission fluid
temperature sensor
Circuit Short to Power
Clear DTC and test. If code re-detects suspect the
Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0716-14 Turbine/Input Shaft
Speed Sensor A Circuit
Range/Performance -
Circuit Short to Ground or
Open
Turbine/Input Shaft
Speed Sensor Circuit
Short to Ground or Open
Circuit
Clear DTC and test. If code re-detects suspect the
Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0716-21 Turbine/Input Shaft
Speed Sensor A Circuit
Range/Performance -
Signal amplitude <
minimum
Turbine/Input Shaft
Speed Sensor signal too
small
Clear DTC and road test, if DTC returns suspect
the Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0716-22 Turbine/Input Shaft
Speed Sensor A Circuit
Range/Performance -
Signal amplitude >
maximum
Turbine/Input Shaft
Speed Sensor signal
above maximum
Clear DTC and road test, if DTC returns suspect
the Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0717-12 Turbine/Input Shaft
Speed Sensor A Circuit
No Signal - Circuit Short
to Battery
Turbine/input shaft speed
sensor A Circuit Short to
Power
Clear DTC and test. If code re-detects suspect the
Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0720-12
Output Shaft Speed
Sensor Circuit - Circuit
Short to Battery
Transmission output
shaft speed sensor
Circuit Short to Power
Clear DTC and test. If code re-detects suspect the
Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0720-14
Output Shaft Speed
Sensor Circuit - Circuit
Short to Ground or Open
Transmission output
shaft speed sensor
Circuit Short to Ground or
Open Circuit
Clear DTC and test. If code re-detects suspect the
Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0721-22
Output Shaft Speed
Sensor Circuit
Range/Performance -
Signal amplitude >
maximum
Transmission output
shaft speed sensor signal
above maximum
Clear DTC and road test, if DTC returns suspect
the Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0721-27
Output Shaft Speed
Sensor Circuit
Range/Performance -
Signal rate of change
above threshold
Output shaft speed
negative gradient too
high
Clear DTC and road test, if DTC returns suspect
the Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect.

DTC Description Possible Causes Action P0721-64
Output Shaft Speed
Sensor Circuit
Range/Performance -
Signal plausibility failure
Signal plausibility failure
Clear DTC and test. If code re-detects suspect the
Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0729-07
Gear 6 Incorrect Ratio -
Mechanical Failures
Gear Ratio Monitoring.
Mechanical Failures
Check and correct oil level. Clear DTC. If code
re-detects suspect Transmission (mechanical)
internal fault. Install a new Transmission as
required, refer to the warranty policy and
procedures manual if a module/component is
suspect. P0731-07
Gear 1 Incorrect Ratio -
Mechanical Failures
Gear Ratio Monitoring.
Mechanical Failures
Check and correct oil level. Clear DTC. If code
re-detects suspect Transmission (mechanical)
internal fault. Install a new Transmission as
required, refer to the warranty policy and
procedures manual if a module/component is
suspect. P0732-07
Gear 2 Incorrect Ratio -
Mechanical Failures
Gear Ratio Monitoring.
Mechanical Failures
Check and correct oil level. Clear DTC. If code
re-detects suspect Transmission (mechanical)
internal fault. Install a new Transmission as
required, refer to the warranty policy and
procedures manual if a module/component is
suspect. P0733-07
Gear 3 Incorrect Ratio -
Mechanical Failures
Gear Ratio Monitoring.
Mechanical Failures
Check and correct oil level. Clear DTC. If code
re-detects suspect Transmission (mechanical)
internal fault. Install a new Transmission as
required, refer to the warranty policy and
procedures manual if a module/component is
suspect. P0734-07
Gear 4 Incorrect Ratio -
Mechanical Failures
Gear Ratio Monitoring.
Mechanical Failures
Check and correct oil level. Clear DTC. If code
re-detects suspect Transmission (mechanical)
internal fault. Install a new Transmission as
required, refer to the warranty policy and
procedures manual if a module/component is
suspect. P0735-07
Gear 5 Incorrect Ratio -
Mechanical Failures
Gear Ratio Monitoring.
Mechanical Failures
Check and correct oil level. Clear DTC. If code
re-detects suspect Transmission (mechanical)
internal fault. Install a new Transmission as
required, refer to the warranty policy and
procedures manual if a module/component is
suspect. P0736-07
Reverse Incorrect Ratio -
Mechanical Failures
Gear Ratio Monitoring.
Mechanical Failures
Check and correct oil level. Clear DTC. If code
re-detects suspect Transmission (mechanical)
internal fault. Install a new Transmission as
required, refer to the warranty policy and
procedures manual if a module/component is
suspect. P0740-13 Torque Converter Clutch
Solenoid Circuit / Open -
Circuit Open
Pressure control solenoid
2 Circuit Open Circuit
Clear DTC and test. If code re-detects suspect the
Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0741-07 Torque Converter Clutch
Solenoid Circuit
Performance/Stuck Off -
Mechanical Failures
Too high slip at torque
converter clutch.
Mechanical Failures
Suspect torque converter lockup clutch. Install a
new torque converter, refer to the warranty policy
and procedures manual if a module/component is
suspect. If transmission fluid is in very poor
condition and dirty, install a new transmission,
refer to the warranty policy and procedures manual
if a module/component is suspect.

DTC Description Possible Causes Action P0829-77
6-5 Shift - Commanded
Position Not Reachable
Gear Ratio Monitoring.
Mechanical Failures
Check and correct oil level. Clear DTC. If code
re-detects suspect Transmission (mechanical)
internal fault. Install a new Transmission as
required, refer to the warranty policy and
procedures manual if a module/component is
suspect. P084F-01
Park / Neutral Switch
Input Circuit - General
Electrical Failure
Wrong voltage level
detected on Park/No Park
signal
Check for correct output at Transmission Control
Module park signal pin (check in all positions) 12
volts in Park, 0 volts in all other positions. If fault
identified, suspect the Transmission Control
Module. Install a new Transmission Control Module
as required, refer to the warranty policy and
procedures manual if a module/component is
suspect. If no fault identified, check Park signal
circuit to Transmission Shift Module for short, open
circuit P0850-01
Park / Neutral Switch
Input Circuit - General
Electrical Failure
General electrical failure
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0850-02
Park / Neutral Switch
Input Circuit - General
signal failure
General signal failure
Check Parklock mechanism, If Parklock operation
correct suspect the Transmission Control Module.
Install a new Transmission Control Module as
required, refer to the warranty policy and
procedures manual if a module/component is
suspect. P0850-29
Park / Neutral Switch
Input Circuit - Signal
invalid
Signal Invalid
Check Parklock mechanism, If Parklock operation
correct suspect the Transmission Control Module.
Install a new Transmission Control Module as
required, refer to the warranty policy and
procedures manual if a module/component is
suspect. P0850-1C
Park / Neutral Switch
Input Circuit - Circuit
voltage out of range
Circuit voltage out of
range
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0919-93
Gear Shift Position
Control Error - No
operation
No shifting despite driver
request
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0919-94
Gear Shift Position
Control Error -
Unexpected operation
Shifting without driver
request
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0938-29
Hydraulic Oil Temperature
Sensor
Range/Performance -
Signal invalid
Transmission fluid
temperature compared
with module temperature
fault
Clear DTC. Carry out cold start road test, continue
driving vehicle until normal operating temperature
is achieved. Read DTCs, if DTC returns, suspect
the Transmission Control Module. Install a new
Transmission Control Module as required, refer to
the warranty policy and procedures manual if a
module/component is suspect. P0963-12
Pressure Control Solenoid
A Control Circuit High -
Circuit Short to Battery
Pressure control solenoid
1 Circuit Short to Power
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual
if a module/component is suspect. P0964-13
Pressure Control Solenoid
B Control Circuit / Open -
Circuit Open
Pressure Control Solenoid
B Control Circuit Open
Suspect the Transmission Control Module. Install a
new Transmission Control Module as required,
refer to the warranty policy and procedures manual

DTC Description Possible Causes Action U0100-82
Lost Communication With
ECM/PCM "A" - Alive /
sequence counter
incorrect / not updated
Alive counter fault
Check Engine Control Module for stored DTCs U0100-83
Lost Communication With
ECM/PCM "A" - Value of
signal protection
calculation incorrect
Checksum fault
Check Engine Control Module for stored DTCs U0100-87
Lost Communication With
ECM/PCM "A" - Missing
message
CAN Timeout
NOTE: Do NOT install a new Engine Control Module
if an Engine Control Module Timeout DTC is only logged in
the Transmission Control Module, the failure is NOT with
the Engine Control Module

Check Engine Control Module for stored DTCs.
Check CAN Bus Circuit for fault U0103-82
Lost Communication With
Gear Shift Control Module
A - Alive / sequence
counter incorrect / not updated
Alive counter fault
Check Transmission Shift Module for stored DTCs.
Check CAN Bus Circuit for fault U0103-83
Lost Communication With
Gear Shift Control Module
A - Value of signal
protection calculation
incorrect
Checksum fault
Check Transmission Shift Module for stored DTCs.
Check CAN Bus Circuit for fault U0103-87
Lost Communication With
Gear Shift Control Module
A - Missing message
CAN Timeout
Check Transmission Shift Module for stored DTCs.
Check CAN Bus Circuit for fault U0122-82
Lost Communication With
Vehicle Dynamics Control
Module - Alive /
sequence counter
incorrect / not updated
Alive counter fault
Check Dynamic Stability Control (ABS) for stored
DTCs. Check CAN Bus Circuit for fault U0122-83
Lost Communication With
Vehicle Dynamics Control
Module - Value of signal
protection calculation
incorrect
Checksum fault
Check Dynamic Stability Control (ABS) for stored
DTCs. Check CAN Bus Circuit for fault U0122-87
Lost Communication With
Vehicle Dynamics Control
Module - Missing message
CAN Timeout
Check Dynamic Stability Control (ABS) for stored
DTCs. Check CAN Bus Circuit for fault U0126-00
Lost Communication With
Steering Angle Sensor
Module - No sub type
information
Lost Communication With
Steering Angle Sensor
Module
Check SAS for stored DTCs. Check CAN Bus Circuit
for fault U0128-87
Lost Communication With
Park Brake Control
Module - Missing message
CAN timeout electronic
parking brake module
Check Electronic Parking Brake Module (EPB) for
stored DTCs. Check CAN Bus Circuit for fault U0140-82
Lost Communication With
Body Control Module -
Alive / sequence counter
incorrect / not updated
Alive counter fault
Check Central Junction Box for stored DTCs. Check
CAN Bus Circuit for fault U0140-83
Lost Communication With
Body Control Module -
Value of signal protection
calculation incorrect
Checksum fault
Check Central Junction Box for stored DTCs. Check
CAN Bus Circuit for fault U0140-87
Lost Communication With
Body Control Module -
Missing message
CAN Timeout
Check Central Junction Box for stored DTCs. Check
CAN Bus Circuit for fault U0155-87
Lost Communication With
Instrument Panel Cluster
(IPC) Control Module - Missing message
CAN timeout instrument
cluster
Check Instrument Cluster for stored DTCs. Check
CAN Bus Circuit for fault U0300-68
Control Module - Event
information
Transmission software
does not match vehicle
network
Check Central Junction Box software level, Check
Transmission Control Module Software level,
Update software as required using the
manufacturer approved process

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