2010 JAGUAR XFR wheel torque

1 Sprags 2 Inner race 3 Outer race 4 Sprag and cage assembly 5 Sprag outer race 6 Sprag inner race 7 Retaining ring The free wheel clutch can perform three functions; hold the stator stationary, drive the stator and free wheel allowing the
stator to rotate without a drive output. The free wheel clutch used in the ZF 6HP28 transmission is of the sprag type and
comprises an inner and outer race and a sprag and cage assembly. The inner and outer races are pressed into their related
components with which they rotate. The sprag and cage assembly is located between the inner and outer races.

The sprags are located in a cage which is a spring which holds the sprags in the 'wedge' direction and maintains them in
contact with the inner and outer races.

Referring to the illustration, the sprags are designed so that the dimension 'B' is larger than the distance between the inner
and outer race bearing surfaces. When the outer race rotates in a clockwise direction, the sprags twist and the edges across
the dimension 'B' wedge between the races, providing a positive drive through each sprag to the inner race. The dimension 'A'
is smaller than the distance between the inner and outer race bearing surfaces. When the outer race rotates in an
anti-clockwise direction, the dimension 'A' is too small to allow the sprags to wedge between the races, allowing the outer
race to rotate freely.

On the illustration shown, when the outer race is rotated in a clockwise direction, the sprags twist and are 'wedged' between
the inner and outer races. The sprags then transfer the rotation of the outer race to the inner race, which rotates at the same
speed.

Lock-Up Clutch Mechanism

The TCC (torque converter clutch) is hydraulically controlled by an EPRS, which is controlled by the TCM. This allows the torque converter to have three states of operation as follows:
• Fully engaged
• Controlled slip variable engagement
• Fully disengaged.

The TCC is controlled by two hydraulic spool valves located in the valve block. These valves are actuated by pilot pressure supplied via a solenoid valve which is also located in the valve block. The solenoid valve is operated by PWM (pulse width One Way Free Wheel Clutch – Typical

1 Cylinder 2 Baffle plate 3 Ring gear 4 Sun gear 5 Planetary gear spider 6 Torque converter input shaft Torque Converter Input Shaft



Item Description 1 Planetary gear spider 2 Planetary gears (short) 3 Ring gear 4 Output shaft 5 Planetary gear carrier 6 Sunwheel 7 Double planetary gears (long) 8 Sunwheel

bus. Temperature control for the heater element is provided by the steering wheel heater control module which receives a
temperature feedback signal from a NTC (negative temperature coefficient) thermistor located within the steering wheel.



ATC Module Component Description



The ATC module is mounted on the outboard end of the air inlet duct, behind the front passenger side of the instrument panel. The ATC module processes inputs from the TSD, the switches on the integrated control panel and the system sensors. In response to these inputs, the ATC module outputs control signals to the A/C system and the heating and ventilation system.
Two electrical connectors provide the interface between the ATC module and the vehicle wiring. The ATC module uses hardwired inputs from the system sensors, the LIN bus to communicate with the stepper motors and the medium speed CAN bus to communicate with other control modules on the vehicle.

A/C Compressor Solenoid Valve

The A/C compressor solenoid valve is integral with the A/C compressor. Operation of the solenoid valve is controlled by the ATC module using a hardwired drive current of differing values. By controlling the flow of refrigerant through the compressor, the
solenoid valve can control the A/C system pressure and the evaporator operating temperature.
Refrigerant Pressure Sensor



The refrigerant pressure sensor provides the ATC module with a pressure input from the high pressure side of the refrigerant system. The refrigerant pressure sensor is located in the refrigerant line between the condenser and the thermostatic
expansion valve.

The ATC module supplies a 5 V reference voltage to the refrigerant pressure sensor and receives a return signal voltage, between 0 V and 5 V, related to system pressure.

The ATC module uses the signal from the pressure sensor to protect the refrigerant system from extremes of pressure. The ATC module transmits the A/C pressure, along with the compressor drive current value, to the instrument cluster on the medium speed CAN bus. These signals are broadcast to the ECM on the high speed CAN bus to allow it to calculate the torque being applied to the engine by the compressor. www.JagDocs.com

6. Adaptive Speed Control Indicator
The adaptive speed control system is controlled by the adaptive speed control module. Operation of the SET +/- switches on
the steering wheel will activate the system. Operation of the switches is detected by the adaptive speed control module. The
module issues a high speed CAN message to the instrument cluster which illuminates the adaptive speed control indicator, when the system is in 'follow mode', in an amber color and displays a 'SETSPEED XXX MPH / KM/H' message in the message
center. The indicator is illuminated in an amber color for a 3 second indicator check when the ignition is switched on.
7. Anti-lock Braking System (ABS) Warning Indicator

The ABS warning indicator is controlled by the ABS module. If a fault in the ABS system is detected by the ABS module, the module issues a high speed CAN message to the instrument cluster to illuminate the ABS warning indicator in an amber color and display the message 'ABS FAULT' in the instrument cluster. The indicator is illuminated in an amber color for a 3 second
indicator check when the ignition is switched on. If a fault is present when the ignition is on, the bulb will remain illuminated
after the 3 second indicator check period.
NOTES:


The 'ABS FAULT' message is not displayed in NAS markets).


If both the ABS warning indicator and the brake warning indicator illuminate simultaneously, a major fault in the brake system will have occurred.

On NAS vehicles, the ABS warning indicator is also used for parking brake operation. The NAS warning indicator does not have 'ABS' on the icon and will function as described previously for the parking brake operation of the brake warning indicator.
8. Engine Malfunction Indicator Lamp (MIL)

The MIL warning indicator is controlled by the ECM and illuminated by the instrument cluster on receipt of a message on the high speed CAN bus from the ECM. The indicator is illuminated in an amber color for a 3 second indicator check when the ignition is switched on.

If the MIL remains illuminated after the engine is started or illuminates when driving, a fault is present and must be
investigated at the earliest opportunity. Illumination of the MIL warning indicator alerts the driver to an OBD (on-board
diagnostic) fault which will cause excessive emissions output. This may relate to either an engine management system fault or
a transmission.
9. Tire Pressure Monitoring System (TPMS) Warning Indicator

The TPMS warning indicator is illuminated by the instrument cluster on receipt of a medium speed CAN message from the TPMS module. The indicator is illuminated in an amber color for a 3 second indicator check when the ignition is switched on.

If the indicator illuminates and is accompanied by the message 'TYRE PRESSURE SYSTEM FAULT' in the message center, then a
TPMS fault has occurred. If the indicator illuminates and accompanied by a different message, then a low tire pressure has
been detected, a spare wheel has been fitted or a TPMS sensor has failed.
10. Airbag Warning Indicator

The airbag warning indicator is controlled by the instrument cluster. The indicator is illuminated in an amber color for the 3
second indicator check when the ignition is switched on. The indicator remains illuminated after the 3 second period has
expired until the instrument cluster receives a turn off message on the high speed CAN bus from the RCM (restraints control module).
11. Front Fog Lamp Indicator

The green colored front fog lamp indicator is controlled by the CJB and illuminated by the instrument cluster on receipt of a front fog lamp on message on the medium speed CAN bus from the CJB. The indicator is illuminated for as long as the front fog lamps are active. The front fog lamp indicator is not subject to the 3 second indicator check when the ignition is switched
on.
12. Dynamic Stability Control (DSC) Indicator

The DSC warning lamp is controlled by the ABS module and illuminated by the instrument cluster in response to messages received on the high speed CAN bus. The indicator is illuminated in an amber color for the 3 second indicator check when the ignition is switched on. The DSC warning indicator, are permanently illuminated in an amber color if the instrument cluster
receives a high speed CAN message from the ABS module relating to one of the following faults:
Traction control fault
Yaw control fault
Engine drag torque control fault
Panic Brake Assist (PBA) fault
Signal missing relating to either traction control active, yaw control active or DSC switch input.

The above faults will also generate an applicable DSC and ABS warning message in the message center. The DSC warning
indicator will flash at 2 Hz for if the traction control or yaw control is active when the DSC system is enabled. If the DSC
system is switched off, the warning indicator will be permanently illuminated until the DSC system is subsequently
re-activated.

13. Safety Belt Warning Indicator

The safety belt warning indicator operates for both the driver and passenger safety belts. The warning indicator is controlled by

DTC Description Possible Cause Action B100D96
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 B102487 Start Control Unit
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 B104611
Front Fog Lamp
Control Switch
Fog lamp switch circuit - short
to ground Refer to the electrical circuit diagrams and check fog lamp
switch circuit for short to ground B104615
Front Fog Lamp
Control Switch
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 B104811
Brake Fluid Level
Switch
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 B10A011
Wiper/ Washer
Switch
Wash/wipe circuit - short to
ground Refer to the electrical circuit diagrams and check wash/wipe
circuit for short to ground B10A015
Wiper/ Washer
Switch
Wash/wipe 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 wash/wipe circuit for
short to power, open circuit B10A611 Main Light Switch
Master lighting switch circuit -
short to ground Refer to the electrical circuit diagrams and check master
lighting switch circuit for short to ground B10A615 Main Light Switch
Master lighting 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 master lighting switch
circuit for short to power, open circuit B112B87
Steering Wheel
Module
Steering wheel module 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 clockspring LIN
circuit for short, open circuit. Suspect the clockspring, check
and install a new clockspring as required, refer to the new
module/component installation note at the top of the DTC
Index B115C7A
Transfer Fuel
Pump
Fuel pump system fault Check for fuel system jet pump or jet pump fuel level sensor
fault B1A8515
Ambient Light
Sensor
Autolamp sensor 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 autolamp sensor circuit
for short to power, open circuit

Published: 11-May-2011
Information and Entertainment System - Steering Wheel Audio Controls
Removal and Installation

Removal


NOTE: Removal steps in this procedure may contain installation details.

1. Make the SRS system safe.

Refer to: Standard Workshop Practices (100-00 General Information, Description and Operation).

2. Refer to: Driver Air Bag Module (501-20B Supplemental Restraint System, Removal and Installation).

3. Refer to: Upshift Paddle Switch (307-05A Automatic Transmission/Transaxle External Controls - V6 3.0L Petrol, Removal and
Installation).

4. Refer to: Downshift Paddle Switch (307-05A Automatic Transmission/Transaxle External Controls - V6 3.0L Petrol, Removal and
Installation).

5. Torque: 3 Nm 6. Torque: 3 Nm