2010 JAGUAR XFR battery

Published: 11-May-2011
Anti-Lock Control - Stability Assist - Steering Wheel Rotation Sensor
Removal and Installation

Removal


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

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).

2. Refer to: Clockspring (501-20B Supplemental Restraint System, Removal and Installation).
3.
4.
Installation

1. To install, reverse the removal procedure.

Published: 11-May-2011
Anti-Lock Control - Stability Assist - Yaw Rate Sensor and Accelerometer
Removal and Installation

Removal


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

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).

2. Refer to: Parcel Shelf (501-05 Interior Trim and Ornamentation, Removal and Installation).







Installation

3. Torque: 6 Nm
















4. CAUTION: Make sure that all diagnostic trouble codes
(DTCs) have been removed after the road test.


NOTE: Make sure that this component is installed to
the noted removal position.

1. To install, reverse the removal procedure.

18 Pinion 19 Steering gear rack bar 20 Valve sleeve The valve unit is an integral part of the steering gear. The principle function of the valve unit is to provide power assistance
(i.e. when parking) to optimize the effort required to turn the steering wheel.

The pinion housing of the valve is an integral part of the main steering gear casting. The pinion housing has four machined
ports which provide connections for pressure feed from the power steering pump, return fluid to the reservoir and pressure
feeds to each side of the cylinder piston.

The valve unit comprises an outer sleeve, an input shaft, a torsion bar and a pinion shaft. The valve unit is co-axial with the
pinion shaft which is connected to the steering column via the input shaft. The valve unit components are located in the
steering gear pinion housing which is sealed with a cap.

The outer sleeve is located in the main bore of the pinion housing. Three annular grooves are machined on its outer diameter.
PTFE (polytetrafluoroethylene) rings are located between the grooves and seal against the bore of the pinion housing. Holes
are drilled radially in each annular groove through the wall of the sleeve. The bore of the outer sleeve is machined to accept
the input shaft. Six equally spaced slots are machined in the bore of the sleeve. The ends of the slots are closed and do not
continue to the end of the outer sleeve. The radial holes in the outer sleeve are drilled into each slot.

The input shaft has two machined flats at its outer end which allow for the attachment of the steering column intermediate
shaft yoke. The flats ensure that the intermediate shaft is fitted in the correct position. The inner end of the input shaft forms
a dog-tooth which mates with a slot in the pinion shaft. The fit of the dog-tooth in the slot allows a small amount of relative
rotation between the input shaft and the pinion shaft before the dog-tooth contacts the wall of the slot. This ensures that, if
the power assistance fails, the steering can be operated manually without over stressing the torsion bar. The central portion of
the input shaft has equally spaced longitudinal slots machined in its circumference. The slots are arranged alternately around
the input shaft.

The torsion bar is fitted inside the input shaft and is an interference fit in the pinion shaft. The torsion bar is connected to the
input shaft by a drive pin. The torsion bar is machined to a smaller diameter in its central section. The smaller diameter allows
the torsion bar to twist in response to torque applied from the steering wheel in relation to the grip of the tyres on the road
surface.

The pinion shaft has machined teeth on its central diameter which mate with teeth on the steering gear rack. A slot, machined
in the upper end of the pinion shaft mates with the dog-tooth on the input shaft. The pinion shaft locates in the pinion
housing and rotates on ball and roller bearings.

Servotronic Valve

The Servotronic transducer valve is located in a port in the side of the steering gear valve housing. The valve is sealed in the
housing with an O-ring seal and is secured with two long screws into threaded holes in the housing. The Servotronic valve is a
transducer controlled valve which responds to control signals supplied from Servotronic software in the instrument cluster.

The Servotronic valve determines the hydraulic reaction at the steering gear rotary valve and controls the input torque required
to turn the steering wheel. The Servotronic system allows the steering to be turned with the optimum effort when the vehicle
is stationary or manoeuvred at slow speed. The hydraulic reaction changes proportional to the vehicle speed, with the required
steering effort increasing as the vehicle moves faster. At high speeds, the Servotronic system provides the driver with a good
feedback through the steering providing precise steering and improved stability.

The instrument cluster receives road speed signals from the ABS module and calculates the correct controlling signal for the Servotronic valve. The Servotronic software within the instrument cluster has a diagnostic capability which allows a Jaguar
approved diagnostic system to check the tune of the steering and retrieve fault codes relating to the Servotronic valve. Two
fault codes are stored relating to the valve for positive connection short to ground or battery and negative connection short to
ground or battery.

The Servotronic software within the instrument cluster also contains a number of steering maps which are selected via the car
configuration file depending on the vehicle model and tire fitment.

If a failure of the Servotronic valve or software occurs, the system will suspend Servotronic assistance and only a default level
of assistance will be available. Fault codes relating to the fault are stored in the instrument cluster. No warning lamps are
illuminated and the driver may be aware of the steering being 'heavier' than usual.
www.JagDocs.com

Published: 11-May-2011
Power Steering - Power Steering Pump V8 5.0L Petrol/V8 S/C 5.0L Petrol
Removal and Installation

Removal

NOTES:


Removal steps in this procedure may contain installation details.


Some variation in the illustrations may occur, but the essential information is always correct.

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).


2. WARNING: Do not work on or under a vehicle supported only by a jack.
Always support the vehicle on safety stands.
Raise and support the vehicle.

3. Refer to: Power Steering System Bleeding (211-00 Steering System - General Information, General Procedures).

4. Refer to: Air Cleaner Outlet Pipe LH (303-12D Intake Air Distribution and Filtering - V8 S/C 5.0L Petrol, Removal and Installation).

5. Refer to: Air Cleaner LH (303-12D Intake Air Distribution and Filtering - V8 S/C 5.0L Petrol, Removal and Installation).

6. Torque: 25 Nm 7. NOTE: Do not loosen the bolts more than 2 turns.
Torque: 25 Nm

Published: 20-May-2014
Steering Column - Steering Column - System Operation and Component Description
Description and Operation

Control Diagram

NOTE: A = Hardwired; D = High speed CAN bus; N = Medium speed CAN bus



Item Description 1 Battery 2 BJB (battery junction box) - Megafuse (175A) 3 RJB (rear junction box) 4 Electric steering column lock 5 High Speed CAN (controller area network) bus to other vehicle systems 6 CJB (central junction box)

Steering Column - Steering Column
Removal and Installation

Removal


NOTE: Removal steps in this procedure may contain installation details. Published: 26-Jun-2014

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).

2. Refer to: Instrument Panel Lower Trim Panel (501-12 Instrument Panel and Console, Removal and Installation).

3. Refer to: Steering Wheel Rotation Sensor (206-09 Anti-Lock Control - Stability Assist, Removal and Installation).


4.




5.

Steering Column - Steering Column Flexible Coupling
Removal and Installation

Removal


NOTE: Removal steps in this procedure may contain installation details. Published: 11-May-2011

1. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).


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

3. Refer to: Air Deflector (501-02 Front End Body Panels, Removal and Installation).

4. Refer to: Instrument Panel Lower Trim Panel (501-12 Instrument Panel and Console, Removal and Installation).


5. WARNING: Make sure that a new steering column
flexible coupling bolt is installed.
Torque: 30 Nm




















6. Torque: 10 Nm

Steering Column - Steering Wheel
Removal and Installation Published: 24-Mar-2014



Removal

1. Make the SRS system safe.
For additional information, refer to: Standard Workshop Practices (100-00 General Information, Description and Operation).

2. Disconnect the battery ground cable.
For additional information, refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).

3. Remove the driver air bag module.
For additional information, refer to: Driver Air Bag Module (501-20B Supplemental Restraint System, Removal and Installation).


4. NOTE: Note the fitted position.
Remove the steering wheel.
Disconnect the electrical connector.
Loosen, but do not fully remove the bolt.
Release the steering wheel from the spline.
Remove the bolt.
Release the electrical harness.








5. CAUTIONS:


Failing to install the clockspring special tool, may result
in damage to vehicle.


Do not dismantle the clockspring, it has no serviceable
parts and must be replaced as a complete assembly.


Do not allow the clockspring to unwind.

Install the special tool to the clockspring. Clockspring locking tool
211-326 Special Tool(s) www.JagDocs.com