airbag JAGUAR XFR 2010 1.G Workshop Manual

Supplementary Restraint System (SRS) Precautions

WARNING: Do not install rear facing child seats in the front passenger seat.

The SRS contains components which are potentially hazardous to service personnel if not handled correctly. The following
guidelines and precautions are intended to alert personnel to potential sources of danger and emphasise the importance of
ensuring the integrity of the SRS components installed to the vehicle.


WARNING: The following precautions MUST be adhered to when working on the SRS system:
The correct procedures must always be used when working on SRS components.
Persons working on the SRS system must be fully trained and have been issued with the safety guidelines.
The airbag modules contain extremely flammable and hazardous compounds. Contact with water, acids or heavy
metals may produce harmful or explosive results. Do not dismantle, incinerate or bring into contact with electricity
before the unit has been deployed.
Always replace a seat belt assembly that has withstood the strain of a severe vehicle impact or if the webbing
shows signs of fraying.
Always disconnect the vehicle battery before carrying out any electric welding on a vehicle installed with an SRS
system.


CAUTION: Do not expose airbag modules or seat belt pre-tensioners to temperatures exceeding 85° C (185° F).

It should be noted that these precautions are not restricted to operations performed when servicing the SRS system. The same
care should be exercised when working on ancillary systems and components located in the vicinity of SRS components; these
include but are not limited to:

Steering wheel airbag, rotary coupler.
Passenger front airbag.
Head airbag modules - front and rear.
Seat belt pre-tensioners.
SRS harnesses, link leads and connectors.
Side (thorax) air bags.
Making the system safe

Before working on or in the vicinity of SRS components, make sure the system is rendered safe by performing the following
operations:

Remove the ignition key.
Disconnect battery, earth lead first.
Wait 2 minutes for the SRS power circuit to discharge before commencing work.


NOTE: The SRS uses energy reserve capacitors to keep the system active in the event of electrical supply failure under
crash conditions. It is necessary to allow the capacitors sufficient time to discharge (2 minutes) in order to avoid the risk of
accidental deployment.
Installation

In order to make sure system integrity, it is essential that the SRS system is regularly checked and maintained so that it is
ready for effective operation in the event of a collision. Carefully inspect SRS components before installation. Do not install a
part that shows signs of being dropped or improperly handled, such as dents, cracks or deformation.


WARNING: The integrity of the SRS systems is critical for safety reasons. Make sure the following precautions are always
adhered to:
Do not install accessories or other objects to trim panels which cover ITS airbags.
Never install used SRS components from another vehicle or attempt to repair an SRS component.
When repairing an SRS system, only use genuine new parts.
Never apply electrical power to an SRS component unless instructed to do so as part of an approved test
procedure.
Special fixings are necessary for installing an airbag module – do not use other fixings and make sure that all
fixings are tightened to the correct torque.
Always use new fixings when replacing an SRS component.

CAUTIONS:
Take care not to trap airbag modules when installing interior trim components.
Make sure SRS components are not contaminated by oil or grease.
NOTES:


Following seat belt pre-tensioner deployment, the seat belts can still be used as conventional seat belts but will need to

be replaced as soon as possible to make sure full SRS protection.


If the SRS components are to be replaced, the part number/bar code of the new unit must be recorded.

SRS component testing precautions

The SRS components are triggered using relatively low operating currents, always adhere to the following :


WARNING: Never use a multimeter or other general purpose equipment on SRS components. Use only approved JLR
diagnostic equipment to diagnose system faults.




WARNING: Do not use electrical test equipment on the SRS harness while it is connected to any of the SRS components,
it may cause accidental deployment and injury.
Handling and storage

Always observe the following precautions when handling SRS components:



Never drop an SRS component. The airbag diagnostic control unit is a particularly shock sensitive device and must be
handled with extreme care. Airbag modules and seat belt pre-tensioners could deploy if subjected to a strong shock.
Never wrap your arms around an airbag module. If a module has to be carried, hold it by the cover with the cover
uppermost and the base away from your body.
Never transport airbag modules or seat belt pre-tensioners in the passenger compartment of a vehicle. Always use the
luggage compartment of the vehicle for carrying airbag modules and seat belt pre-tensioner units.
Never attach anything to an airbag cover or any trim component covering an airbag module. Do not allow anything to
rest on top of an airbag module.
Always keep components cool, dry and free from contamination.
Never apply grease or cleaning solvents to seat belt pre-tensioner units, component failure could result.
Always store an airbag module with the deployment side uppermost. If it is stored deployment side down, accidental
deployment will propel the airbag module with sufficient force to cause serious injury.
Keep new airbag modules in their original packaging until just prior to installing. Place the old module in the empty
packaging for carriage.

WARNINGS:


When handling an inflatable tubular structure (ITS) airbag module, hold by the gas generator housing, DO NOT hold by
the airbag. Do not wrap the thumb around the gas generator while holding. Do not drape airbag over shoulder or around neck.
For seat buckle type pre-tensioners, hold by the piston tube, with the open end of the piston tube pointing towards the ground
and the buckle facing away from your body. Do not cover the end of the piston tube. DO NOT hold buckle type pre-tensioners
by the bracket assembly or cable. Never point the piston tube towards your body or other people.


Airbag modules and seat belt pre-tensioners are classed as explosive devices. For overnight and longer term storage,
they must be stored in a secure steel cabinet which has been approved as suitable for the purpose and has been registered
with the local authority.


Store airbag modules or seat belt pre-tensioners in a designated storage area. If there is no designated storage area
available, store in the locked luggage compartment of the vehicle and inform the workshop supervisor.


CAUTION: Improper handling or storage can internally damage the airbag module making it inoperative. If you suspect
the airbag module has been damaged, install a new module and refer to the deployment/disposal procedures for disposal of
the damaged module.
SRS harness and connectors

Always observe the following precautions with regards to SRS system electrical wiring:



Never attempt to modify, splice or repair SRS wiring.
Never install electrical equipment such as a mobile telephone, two-way radio or in-car entertainment system in such a
way that it could generate electrical interference in the airbag harness. Seek specialist advice when installing such
equipment.


NOTE: SRS wiring can be identified by a special yellow outer sleeve protecting the wires (black with yellow stripe
protective coverings are sometimes used). www.JagDocs.com

WARNING: Always make sure SRS wiring is routed correctly. Be careful to avoid trapping or pinching the SRS wiring.




WARNING: Do not leave the connectors hanging loose or allow SRS components to hang from their harnesses. Look for
possible chafing points.
Side impact crash sensor inspection

After any degree of side body damage, inspect the side impact crash sensors. Replace a crash sensor if there is any sign of
damage.


CAUTION: Take extra care when painting or carrying out bodywork repairs in the vicinity of the crash sensors. Avoid direct
exposure of the crash sensors or link harnesses to heat guns, welding or spraying equipment. Take care not to damage sensor
or harness when reinstalling components.
Rotary coupler


CAUTION: Always follow the procedure for installing and checking the rotary coupler as instructed in the SRS repairs
section. Comply with all safety and installation procedures to make sure the system functions correctly. Observe the following
precautions:

Do not unlock and rotate the rotary coupler when it is removed from the vehicle.
Do not turn the road wheels when the rotary coupler is removed from the vehicle.
Always make sure the rotary coupler is removed and installed in its central position and with the front road wheels in
the straight ahead position - refer to SRS repair section for the correct removal and installation procedure.
If a new rotary coupler is being installed, make sure the locking tab holding the coupler's rotational position is not
broken; units with a broken locking tab must not be used.
Airbag location labels

WAITING AIRBAG LOCATION AND DESIGN LABELS - DUE MARCH - NEIL HARRISON 46404

Airbag and pre-tensioner deployment


WARNING: During deployment parts of the airbag module become hot enough to burn you. Wait 30 minutes after
deployment before touching the airbag module.

Deployment procedures and precautions as detailed in this manual should be strictly adhered to. Only personnel who have
undergone the appropriate training should undertake deployment of airbag and pre-tensioner modules. The following
precautions must be complied with:
Only use deployment equipment approved for the intended purpose.
Deployment of airbag / pre-tensioner modules must be performed in a well ventilated area which has been designated
for the purpose.
Make sure airbag / pre-tensioner modules are not damaged or ruptured before attempting to deploy.
Where local legislation exists, notify the relevant authorities of intention to deploy airbag and pretensioner units.
When deploying airbag pre-tensioner units, make sure that all personnel are at least 15 metres (45 feet) away from the
deployment zone.
Make sure deployment tool is connected correctly, in compliance with the instructions detailed in the SRS section of this
manual. In particular, make sure deployment tool is NOT connected to battery supply before connecting to airbag
module connector.
When deploying seat belt pre-tensioners, make sure pre-tensioner unit is secured correctly to the seat.
When removing deployed airbag modules and pre-tensioner units, wear protective clothing. Use gloves and seal
deployed units in a plastic bag.
Following deployment of any component of the SRS system within the vehicle, all SRS components must be replaced.
DO NOT reuse or salvage any parts of the SRS system.
Do not lean over an airbag module when connecting deployment equipment.

If a vehicle is to be scrapped, undeployed airbag modules and pre-tensioner units must be manually deployed. In this case
airbags can be deployed in the vehicle. Before deployment, make sure the airbag module is secure within its correct mounting
position. Deployment of the driver's airbag in the vehicle may damage the steering wheel; if the vehicle is not being scrapped,
deploy the module outside of the vehicle.

SRS Component Replacement Policy

CAUTIONS:


The Restraints Control Module (RCM) will log a crash fault after every impact which is severe enough to cause airbag
deployment. It is possible to have three crashes/impacts logged after one event where, for example, a front, side and
rollover has occurred. After the third fault is logged, the SRS warning lamp will be illuminated and the RCM must be
installed. After any airbag deployment a new RCM must be installed.


The SRS side impact sensor must be replaced if there are any signs of physical damage or if the restraints control module
(RCM) is registering a fault.
The following information details the policy for replacement of SRS components as a result of a vehicle accident.

Impacts which do not deploy the airbags or pre-tensioners

Check for structural damage in the area of the impact paying particular attention to bumper armatures, longitudinals and
bracketry.
Impacts which deploy the airbags or pre-tensioners

The replacement and inspection policy is dependent on the type and severity of the crash condition. The following guidelines
are the minimum that should be exercised as a result of the deployment of specific SRS components.

Check for structural damage in the area of impact paying particular attention to bumper armatures, longitudinals and
bracketry.

Front Airbag Deployment - Driver and Passenger

CAUTION: If the front airbags are deployed, the following components must be replaced:
Driver airbag module
Passenger airbag module
Fly leads (where applicable) connecting front airbag modules to SRS harness
Front seat belt buckle pre-tensioner
Rear seat belt pre-tensioners - if installed
Driver's seat belt retractor - if installed
Rotary coupler
Any front impact sensors that have been physically damaged or if a fault is being registered
Restraints control module (RCM) if the three crashes/impacts have been stored
Additionally, the following items must be inspected for damage and replaced as necessary:

Front passenger's seat belt retractor and webbing, tongue latching function, 'D' loop and body anchorage point
Rear seat belt buckles, webbing, buckle covers, body anchorage points and tongue latching function
Fascia moulding adjacent to passenger airbag module
Steering wheel
Front seat frames and head restraints
Steering column - if adjustment is lost or if there are signs of collapse
Seat belt height adjusters

Rear seat belts

Side Air Bags


CAUTION: If the side (thorax) air bags are deployed, the following components must be replaced on the side of the
vehicle on which the deployment occurred:
Side (thorax) airbag
Any side impact sensors that have been physically damaged or if a fault is being registered
Restraints Control Module (RCM) if the three crashes/impacts have been stored
Additionally, the following items must be inspected for damage and replaced as necessary:

Front seat belts, retractors and webbing, tongue latching function, 'D' loop and body anchorage points
Rear seat belt buckles, webbing, buckle covers, tongue latching function, and body anchorage points
Front seat frame and head restraints
Door trim casing
Seat belt height adjusters
Rear seat belts
Head airbag modules


CAUTION: If the head airbag modules are deployed, the following components must be replaced on the side of the
vehicle on which the deployment occurred:
Head airbag modules
Link lead between airbag gas generator and restraints control module (RCM) harness
Airbag retaining clips
Internal trim finisher
Front seat belt buckle pre-tensioners
Any side impact sensors that have been physically damaged or if a fault is being registered
Restraints Control Module (RCM) if the three crashes/impacts have been stored
Additionally, the following items must be inspected for damage and replaced as necessary:

Headlining
Component mounting brackets
Front seat belts, retractors and webbing, tongue latching function, 'D' loop and body anchorage points
Rear seat belt buckles, webbing, buckle covers, tongue latching function, and body anchorage points
Adjacent trim components
Seat belt height adjusters

Rear impacts

CAUTION: If the seat belt pre-tensioners are deployed during a rear impact, the following components must be replaced:
Seat belt pre-tensioners
Front and rear seat belt retractors used during the impact
Restraints Control Module (RCM) if the three crashes/impacts have been stored

Additionally, the following items must be inspected for damage and replaced as necessary:
Seat belt height adjusters
Front seat belts, retractors and webbing, tongue latching function, 'D' loop and body anchorage points
Rear seat belt buckles, webbing, buckle covers, tongue latching function, and body anchorage points

DTC Description Possible Causes Action B10AF-93
Blower Fan Relay - No
operation
High Side output not
driven - Diagnosis
feedback indicates
output is at open load
or short to power
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
blower motor supply circuit for short to power, open
circuit B10DD-11
Airbag Deployed -
Circuit short to ground
Airbag deployed digital
input signal circuit -
short to ground
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
airbag deployed digital input signal circuit for short
to ground B10DD-15
Airbag Deployed -
Circuit short to battery
or open
Airbag deployed digital
input signal circuit -
short to power, open
circuit
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
airbag deployed digital input signal circuit for short
to power, open circuit B10DD-38
Airbag Deployed - Signal
frequency incorrect
Signal frequency
incorrect
Check the RCM for related DTCs and refer to the
relevant DTC Index B10DE-11
Low Fuel Warning
Switch - Circuit short to
ground
Diesel run-dry switch
analogue input circuit -
short to ground
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
diesel run-dry switch analogue input circuit for short
to ground B10DE-15
Low Fuel Warning
Switch - Circuit short to
battery or open
Diesel run-dry switch
analogue input circuit -
short to power, open
circuit
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
diesel run-dry switch analogue input circuit for short
to power, open circuit B1112-11
Park Aid Ignition -
Circuit short to ground
Parking aid ignition
supply circuit - short to
ground
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
parking aid ignition supply circuit for short to ground B1112-12
Park Aid Ignition -
Circuit short to battery
Parking aid ignition
supply circuit - short to
power
Refer to the electrical circuit diagrams and check
parking aid ignition supply circuit for short to power B1115-11
High Mounted Stop
Lamp Control - Circuit
short to ground
High mounted stop lamp
control circuit - short to
ground
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
high mounted stop lamp control circuit for short to
ground B1116-11
Left Tail Lamp - Circuit
short to ground
Left hand tail lamp
control circuit - short to
ground
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check left
hand tail lamp control circuit for short to ground B1117-11
Right Tail Lamp - Circuit
short to ground
Right hand tail lamp
control circuit - short to
ground
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
right hand tail lamp control circuit for short to
ground B111A-11
Number Plate Lamps -
Circuit short to ground
Right hand or left hand
number plate lamp
control circuits - short to
ground
Carry out any pinpoint test associated with this DTC
using the manufacturer approved diagnostic system.
Refer to the electrical circuit diagrams and check
right hand and left hand number plate lamp control
circuits for short to ground www.JagDocs.com

Published: 12-May-2014
General Information - Diagnostic Trouble Code (DTC) Index DTC: Restraints
Control Module (RCM)
Description and Operation

Restraints Control Module (RCM)

WARNINGS:


TO AVOID ACCIDENTAL DEPLOYMENT AND POSSIBLE PERSONAL INJURY, THE BACKUP POWER SUPPLY MUST BE DEPLETED
BEFORE REPAIRING OR REPLACING ANY AIR BAG SUPPLEMENTAL RESTRAINT SYSTEM (SRS) COMPONENTS. TO DEPLETE THE
BACKUP POWER SUPPLY ENERGY, DISCONNECT THE BATTERY GROUND CABLE AND WAIT ONE MINUTE. FAILURE TO FOLLOW
THIS INSTRUCTION MAY RESULT IN PERSONAL INJURY


Do not use a multimeter to probe the restraints control module. It is possible for the power from the meter battery to
trigger the activation of the airbags. Failure to follow this instruction may result in personal injury


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 a 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
an up-to-date 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 DTCs 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.


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 required.


It is advisable not to use a cellular phone or to have a cellular phone in close proximity when working on the restraints
control module or associated systems.


Given the legal implications of a restraints system failure, harness repairs to air bag module circuits are not acceptable.
Where the text refers to "REPAIR the circuit", this will normally mean the replacement of a harness.

The table below lists all Diagnostic Trouble Codes (DTCs) that could be logged in the Restraints Control Module (RCM). For
additional diagnosis and testing information, refer to the relevant Diagnosis and Testing section in the workshop manual.
For additional information, refer to: Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) (501-20B Supplemental Restraint System, Diagnosis and Testing).

DTC Description Possible Causes Action B0001-09
Driver Frontal Stage 1
Deployment Control -
Component failures
Driver front stage 1 air bag -
internal driver failure
Carry out any pinpoint tests associated
with this DTC using the manufacturer
approved diagnostic system www.JagDocs.com

16 Ball (12 off) 17 Distance keeper 18 Crash tube The column comprises a cast magnesium mounting bracket which provides the attachment to the cross-beam. Attached to the
mounting bracket is a rake lever which is attached to the mounting bracket at the lower end with two pivot bearings. The
bearings allow the rake lever to rotate upwards or downward to adjust the column rake.

The rake lever also provides for the attachment of the rake housing which can slide within the lever to provide the reach
adjustment. Within the rake housing is the axial housing which is supported on each side with 6 ball bearings which allow the
rake housing to move forward or backwards. The bearings on each side are arranged in groups of 3 bearings and are separated
by a distance keeper which allows the housing to supported on bearings along its length. Within the axial housing is a tube
which is supported at the upper end of the column on the upper bearing. The tube has a central splined hole which provides for
the fitment of the splined shaft. The splined shaft can slide within the tube on the splines when the column reach is adjusted
or the column collapses in a crash condition. The splined shaft also passes rotary motion from the steering wheel through the
length of the column to the outer clamping yoke which is supported on the lower bearing.

The electric steering column lock is attached to the top of the rake lever. A lock bolt within the steering column lock engages in
one of 8 slots in the locking sleeve located at the lower end of the column preventing rotation of the steering wheel. The
locking sleeve is retained by a tolerance ring which in turn is located on the outer diameter of the tube yoke. The tolerance
ring allows a specified amount of torque to be applied to the splined shaft before it slips, preventing damage to the column
lock due to excessive force being applied to the steering wheel when the lock is engaged. The tolerance ring is designed to
slip on the splined shaft when the applied torque exceeds the fitted slip load of 200 Nm minimum. Repeated rotation of the
lock collar will reduce its slipping torque to 100 Nm minimum. The lock is controlled by the CJB.
A steering angle sensor is located at the upper end of the steering column and is attached to the crash adaptor. The sensor
measures steering rotation via a toothed wheel located on the splined tube at the upper end of the column. The sensor
receives a power supply from the CJB and supplies 2 signals (A and B) relating to the steering rotation to the ABS (anti-lock brake system) module. The module transmits this data on the high speed CAN bus for use by other vehicle systems. Refer to: Anti-Lock Control - Stability Assist (206-09 Anti-Lock Control - Stability Assist, Description and Operation).
The steering column is adjustable electrically, for reach and rake. The adjustment mechanism comprises an electric adjustment
motor, a lead screw, a rake solenoid, a reach solenoid, a reach clutch and a rake clutch. The column adjustment is controlled
manually using a joystick switch located on the LH (left-hand) side of the column lower cowl. The joystick can be moved
forward and backward to adjust the column reach in and out and moved up and down to adjust the rake. The switch selection
energizes the adjustment motor in the applicable direction and also engages the applicable solenoid and clutch.

When the joystick switch is rotated to the 'auto' position, the steering column will adjust to the uppermost rake position when
the ignition is switched off. It will re-adjust to the position corresponding to the memory position for the remote handset when
the ignition is switched on.

The memory function of the electric column is linked to and controlled by the driver's seat module. The module provides for the
storage of three separate memory positions which are stored against 3 individual remote handsets.
Refer to: Seats (501-10 Seating, Description and Operation).
The steering wheel locates on a splined shaft in the upper column assembly and is secured with a bolt. The steering wheel
houses the driver's airbag and switches for the audio system, gear change and speed control. A clockspring is used to connect
the steering wheel electrical components to the vehicle harness.

Two plastic shrouds are fitted to the upper column assembly. The lower shroud is fitted with an energy absorbing foam pad to
minimize leg injury in the event of an accident.
www.JagDocs.com

Published: 11-May-2011
Steering Column Switches - Steering Column Switches - Overview
Description and Operation

OVERVIEW

The steering column multifunction switch is situated on the steering column and consists of the wiper switch, the turn signal
indicator/lighting switch and the trip computer switch.
The RH (right-hand) multifunction switch controls the following windshield wiper functions:
Flick wipe
Intermittent wipe
Slow speed wipe
High speed wipe
Wash/Wipe
Headlamp powerwash
Rain sensing / variable wipe selection.
The LH (left-hand) multifunction switch controls the following functions:
Turn signal indicators
Side lamps
Headlamps
Auto lamps
High/low beam
Headlamp flash
Headlamp timer
Trip computer.

The steering column adjustment switch is located in the steering column lower shroud on the LH side. The switch is a 4 position 'joystick' which controls reach and rake adjustment.

The trip button allows the driver to cycle though an option menu and also reset trip cycle mileage calculations. The trip
computer information is displayed in the instrument cluster message centre.

Steering wheel mounted switches on the LH side of the driver's airbag, control the audio and telephone functions. Switches on the RH side of the driver's airbag, control the speed control functions. The steering wheel has an internal heating element. This is controlled by the driver via the Touch Screen Display (TSD). www.JagDocs.com