2010 JAGUAR XFR ECU

On vehicles with headlamp powerwash, each headlamp assembly is fitted with a headlamp powerwasher. The powerwasher is
located on the underside of the headlamp assembly. The powerwasher is located in a clip at the front of the headlamp and
secured with 2 self tapping screws to the headlamp body.

The powerwasher is a telescopic unit which extends forwards from the headlamp assembly under washer fluid pressure
supplied by the headlamp powerwash pump. When the pump pressure decreases the powerwasher is automatically retracted
back into the housing. The outer end of the powerwasher is fitted with a trim which blends the powerwasher into the headlamp
when it is not operating. The powerwasher has two washer jets which direct washer fluid under high pressure onto the
headlamp lens when the powerwasher is extended.

RAIN/LIGHT SENSOR



The rain/light sensor is located at the upper edge of the windshield, behind the interior rear view mirror. Contact between the
rain sensor and windscreen is provided via a silicon pad which is compressed during the assembly process by two locking
retaining clips either side of the sensor.
The rain/light sensor unit attaches to the windshield via two clips, which latch onto formed tags on the windshield bracket.

The sensor provides information to the CJB for the optimum wiper operation for the prevailing conditions to maintain the shield in a clear condition at all times. The rain/light sensor is an optical unit, which operates on an infrared waveband. The sensor
uses the principle of the laws of reflection on interfacing surfaces between materials with differing refraction properties.

The rain/light sensor is connected to the CJB via a LIN bus. The sensor also receives a hardwired power and ground from the CJB. The 'auto' wipers are activated when the column stalk is moved to position 1 (first position from off in the upward direction). The sensitivity of the sensor can be adjusted by rotating the sensitivity collar on the wiper column stalk in the
clockwise or counterclockwise direction. Clockwise rotation will decrease sensitivity, while counterclockwise adjustment will
increase sensitivity. An increase in sensitivity adjustment results in a single wipe of the front wiper motor.


NOTE: The rain sensor also contains a light sensor. The light sensor is used to control operation of the automatic
headlamps function.
Refer to: Exterior Lighting (417-01 Exterior Lighting, Description and Operation).
WIPER CONTROL SWITCH

The wiper control switch is located on the RH steering column multifunction switch. The switch allows selection of the following functions:

Slow wipe
Fast wipe
Auto
Flick wipe
Windshield wash and headlamp powerwash (if fitted).

All wiper functions are connected to the instrument cluster by a resistor or series of resistors within the switch. The instrument
cluster uses the returned current to determine the selected function.

WIPER SERVICE POSITION

The wiper service position allows the wipers to be parked in a position to allow easy access to the wiper blades for
replacement. The service position is initiated by pulling the RH steering column multifunction switch towards the steering wheel and pressing the start/stop button to switch on the ignition. The wipers will move and stop in a vertical position on the
windshield. The RH steering column multifunction switch can be released and the ignition switched off. The service position is terminated at the next ignition on cycle and the wipers return to their normal park position.

Wipers and Washers - Rain Sensor
Removal and Installation

Removal


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

1. Refer to: Interior Rear View Mirror (501-09 Rear View Mirrors, Removal and Installation).
2.
3.
Installation

1. CAUTIONS:


Make sure that the component is secured in the
retainer.


Make sure that the clips are correctly located.

To install, reverse the removal procedure. www.JagDocs.com

Carline Market Seat position Automatic Locking Retractor Installed From Model Year XK (X150) All Driver No 2007 XK (X150) ROW Passenger No 2007 XK (X150) US Passenger Yes 2007 XK (X150) ROW Row 2 Yes 2007 XK (X150) US Row 2 Yes 2007 XF (X250) All Driver No 2009 XF (X250) ROW Passenger No 2009 XF (X250) US Passenger Yes 2009 XF (X250) ROW Row 2 No 2009 XF (X250) US Row 2 Yes 2009 XJ (X351) All Driver No 2010 XJ (X351) ROW Passenger No 2010 XJ (X351) US Passenger Yes 2010 XJ (X351) ROW Row 2 No 2010 XJ (X351) US Row 2 Yes 2010 The automatic locking retractor function is a feature to secure a child seat or heavy load to the seat

Activation Deactivation
NOTE: When automatic locking retractor is activated, no further webbing
can be drawn from the seatbelt retractor, prior to disengagement of the
automatic locking. This can be mistaken as a jammed seatbelt retractor
Activated by total extraction of the webbing Automatic locking retractor is deactivated by
allowing the webbing to retract until the
clicking stops (close to park position) When activated the automatic locking retractor is identified by a clicking noise
during webbing retraction When deactivated the automatic locking
retractor seatbelt changes state, from a static
seatbelt to an automatic seatbelt Seatbelt Locking Test

With the vehicle stationary and on level ground take firm hold of the seatbelt webbing (on the tongue side of the upper
seatbelt anchor) and withdraw sharply, the retractor should lock. Preventing further webbing release (repeat this test 3
times). Any seatbelt retractor which fails to lock must not be used and a new seatbelt must be installed.

DTC Index

For a list of diagnostic trouble codes that could be logged on this vehicle, please refer to Section 100-00 or for removal and
installation/description and operation see Section 501-20.

Diagnostic Guide Inertia Reel Seatbelts

PINPOINT TEST A : BACKLOCK TEST
CONDITIONS DETAILS/RESULTS/ACTIONS A1: BACKLOCK 1 Visually inspect the condition of the suspect seatbelt 2 Draw a maximum of 20mm of the webbing from the seatbelt retractor with moderate force. Then release the webbing 3 Check for correct operation twice Does the webbing move freely then retract correctly?
Yes
No further action required
No
For first row seatbelt GO to Pinpoint Test C. For second and third row seatbelts GO to Pinpoint Test B.
PINPOINT TEST B : WEBBING-TRAPPED IN SEAT TEST
CONDITIONS DETAILS/RESULTS/ACTIONS B1: WEBBING-TRAPPED IN SEAT 1 Visually inspect the condition of the suspect seatbelt 2 Lift the seat base or release the seat backrest as required 3 Free the trapped webbing, allow the webbing to retract Note: If the automatic locking retractor is activated, allow the webbing to retract until the clicking stops 4 Check for correct operation twice Does the webbing move freely then retract correctly?
Yes
No further action required
No
GO to Pinpoint Test C.

and the safety belt buckle sensor. Based on this data, the RCM decides which level of airbag module deployment is required and forwards the information to the second area, the deployment handler.

The deployment handler evaluates the status of the seat track position sensor and safety belt buckle sensors before a decision
is made about which restraints should finally be deployed.

Data from the side crash sensors is used by the RCM in conjunction with acceleration data from the RCM internal accelerometer to make a deployment decision. The RCM processes the acceleration data and subject to an impact being of high enough severity, decides whether the side airbag module should be deployed.

On board testing of the airbag modules, front safety belt pretensioner firing circuits, warning indicator circuits and module
status (the crash and side impact sensors perform basic self-tests) is performed by the RCM together with the storing of fault codes.

The RCM drives the SRS indicator on the instrument pack via a CAN signal. If the warning lamp fails, a fault code is recorded and a warning tone is sounded in place of the lamp if a further fault occurs. It also provides a temporary back-up power supply
to operate the airbag modules in the event that in crash conditions, the battery supply is lost. In the event of a crash, it
records certain data which can be accessed via the diagnostic connector.

A safing sensor in the RCM provides confirmation of an impact to verify if airbag and pretensioner activation is necessary. A roll-over sensor monitors the lateral attitude of the vehicle. Various firing strategies are employed by the RCM to ensure that during an accident only the appropriate airbags and pretensioners are fired. The firing strategy used also depends on the
inputs from the safety belt switches and the occupant monitoring system.

An energy reserve in the RCM ensures there is always a minimum of 150 milliseconds of stored energy available if the power supply from the ignition switch is disrupted during a crash. The stored energy is sufficient to produce firing signals for the
driver airbag, the passenger airbag and the safety belt pretensioners.

When the ignition is switched on, the RCM performs a self-test and then performs cyclical monitoring of the system. If a fault is detected the RCM stores a related fault code and illuminates the airbag warning indicator. The faults can be retrieved by the recommended Jaguar diagnostic tool over the CAN bus. If a fault that could cause a false fire signal is detected, the RCM disables the respective firing circuit, and keeps it disabled during a crash event.

Clock Spring



The clockspring is installed on the steering column to provide the electrical interface between the fixed wiring harness of the
steering column and the components that rotate with the steering wheel, i.e. the driver airbag, the horn and the steering
wheel switch packs.

The clockspring consists of a plastic cassette which incorporates an outer cover fixed to the steering column and an inner rotor
which turns with the steering wheel. Four securing lugs attach the cover to the multifunction switch on the steering column.
The rotor is keyed to the steering wheel by a drive peg. A lug on the underside of the rotor operates the self-cancelling feature
of the turn signal indicator switch. A ribbon lead, threaded on rollers in the rotor, links two connectors on the cover to two
connectors on the rotor. Link leads for the driver airbag are installed in one of the connectors on the rotor.

To prevent damage to the ribbon lead, both the steering and the clockspring must be centralized when removing and installing
the clockspring or the steering wheel. The clockspring is centralized when the drive peg is at six o'clock and 50 - 100% of a
yellow wheel is visible in the viewing window.

Replacement clocksprings are fitted with a stopper, which locks the cover to the rotor, in the central position. The stopper must
be broken off when the replacement clockspring is installed.

position sensor consists of a Hall effect sensor attached to the driver seat frame. While the ignition is on, the RCM supplies the sensor with power, and monitors the return current. When the seat frame moves forwards, the sensor moves over the edge
of the seat track, which changes the reluctance of the sensor. The change of current is detected by the RCM and used as a switching point. The switching point is when the center of the sensor is 3 ± 4 mm from the leading edge of the seat track.

When the driver seat is forward of the switching point, the RCM increases the time delay between firing the two stages of the inflator in the driver airbag. When the driver seat is rearward of the switching point, the RCM uses the normal time delay between firing the two stages.

Safety Belt Sensor

A safety belt switch is installed in the buckle of each front safety belt to provide the RCM with a status signal of the related safety belt(s). When the safety belt is unfastened the switch outputs a low current to the RCM. When the safety belt is fastened the switch outputs a high current to the RCM.
Pretensioners



Item Description 1 Front seat safety belt switch 2 Front seat safety belt pretensioner 3 Electrical connector The pretensioners are used to tighten the front safety belts during a collision to ensure the occupants are securely held in
their seats. A pretensioner is integrated into each front safety belt buckle and attached to a bracket on the inboard side of the
seat.

Each pretensioner has a tube containing propellant and a piston. The piston is attached to a steel cable, the opposite end of
which is attached to the safety belt buckle. A squib in the base of the tube provides an ignition source when triggered by a fire
signal from the RCM.
On receipt of a fire signal from the RCM, the squib ignites the propellant. The propellant produces nitrogen gas that rapidly expands to drive the piston along the tube, pulling the cable and drawing the buckle downwards.

Do not place the driver or passenger air bag module with the trim
cover or deployment door facing down, as the forces of the deploying air
bag can cause it to ricochet and cause personal injury. Failure to follow
this instruction may result in personal injury.

Equipment required: Universal deployment tool-Part N° 418-135 and 12V
Battery.

2. The deployment procedure should be carried out outdoors away from
other personnel.

3. Remove any loose debris from around air bag. Make sure that no
flammable liquids are present.

4. Disconnect the battery ground and positive cables.

5. Disconnect the relevant air bag module electrical connector.

6. Connect the appropriate adaptor lead to the restraint device.

7. Connect the deployment lead to the adaptor lead. Pass wire of the
deployment tool through window, close all doors, leave window with lead
for deployment tool open.


8. WARNING: Before proceeding, make sure precautions have been taken
to warn personnel of a possible loud noise upon activation. Do not allow
anybody to approach closer to restraint device than six meters. Failure
to follow this instruction may result in personal injury.

Move as far from restraint device as possible and connect the tool clips
to a 12V vehicle battery.


9. WARNING: Do not handle the deployed device immediately after
activation - it may be hot. Allow the unit to cool for at least 20 minutes.
Cooling modules should be continuously monitored to make sure heat
does not create a fire with spilled liquids or other debris. Failure to
follow this instruction may result in personal injury.

Deploy the module by depressing both switches on the tool. If activation
does not occur, disconnect battery from tool and seek advise from Jaguar
Engineering and wait for further instructions.

10. Repeat procedure for all air bags in vehicle.

11. The vehicle is now to be scrapped in the normal manner with modules
installed.

Disposal of live air bag modules for all air bags, using tyres

1. Equipment required: Deployment tool 418-S135, Battery (12V), Safety
goggles to BS2092 grade 2, Rubber gloves to PrEN 374 class 2, Ear
protectors that have been measured to BS.EN 24869, Particulate
respirator to EN 149 grade FFP2S

2. The deployment procedure should be carried out outdoors, away from
other personnel.

3. Stack four scrap tyres, securing together with heavy gauge wire or cable.

4.
5. NOTES:


An audible click is heard when the clips are fully
latched.


Make sure the electrical connector is securely
connected.









6. www.JagDocs.com

12.
















13.
14. CAUTION: Make sure that the wiring harness is routed
above the drive bar as shown, to avoid damage to the
wiring harness during movement of the front seat.














NOTES:


An audible click is heard when the clips are fully
latched.


Make sure the electrical connector is securely
connected.









Torque: 1.3 Nm