warning LAND ROVER DISCOVERY 1995 Owners Manual

SUPPLEMENTARY RESTRAINT SYSTEM
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DESCRIPTION AND OPERATION SRS warning light (airbag)
Distributed SRS
The warning light in the instrument pack illuminates
after the electrical circuits are switched on whilst a
system check is carried out. After about 8 seconds the
warning light will go out. The system checks airbag
diagnostic control unit, airbag crash sensors, airbag
harness, driver and passenger modules.
SPS SRS
The warning light in the instrument pack illuminates
after the electrical circuits are switched on whilst a
system check is carried out. After about 5 seconds the
warning light will go out. The system checks airbag
diagnostic control unit, airbag harness, driver and
passenger modules.
All Models
In the event of a fault in the system the warning light
will illuminate. The airbag diagnostic control unit logs
the fault which can only be accessed using TestBook.

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DESCRIPTION AND OPERATION AIRBAG STORAGE
Temporary storage
For temporary storage of the airbag module during
service, observe the following precautions:
Store the airbag module with the pad surface up.
Place the airbag module in designated storage area.
If no designated storage area is available, the module
may be stored in the boot of the vehicle from which it
was removed. Always lock the boot when module is
stored in it and inform workshop supervisor.
WARNING: If the airbag is improperly
stored face down, accidental deployment
could propel the unit with enough force to
cause serious injury.
Store the removed airbag module on a secure flat
surface away from heat, oil, grease, detergent or
water.
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
unit.
Overnight storage
Airbag modules are classed as an explosive article
and as such they must be stored in a secure steel
cabinet which has been approved by the local
authority.

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FAULT DIAGNOSIS WARNING LABELS
1.Bonnet locking platform
Refer to the Owner's Handbook for information on the
airbag system.
2.Rotary coupler
CAUTION: Ensure wheels are straight
ahead before removal and installation.
3.Driver's sun visor
Refer to the Owner's Handbook for information on the
airbag system.

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REPAIR SYSTEM PRECAUTIONS
CAUTION: Before and during any removal
operations within the SRS section, note
routing and position of all harnesses to aid
correct refitting and to avoid accidentally trapping
cables.
CAUTION: During refitting of any item
within the SRS section, always ensure
connectors are fully engaged and latched
before proceeding to the next stage of the
operation.DRIVER'S AIRBAG MODULE
Service repair no - 76.74.01
WARNING: All the airbag system
components, including the wiring harness,
MUST be renewed after the airbags have
deployed.
Remove
1.Turn steering wheel 90Ê from horizontal.
2.Switch off ignition.
3.Disconnect battery negative '-' and then the
positive '+' lead.
CAUTION: Always disconnect both leads.
4.Release 2 turnbuckles and remove dash lower
panel.

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REPAIR PASSENGER'S AIRBAG MODULE
Service repair no - 76.74.02
WARNING: All the airbag system
components, including the wiring harness,
MUST be renewed after the airbags have
deployed.
Remove
1.Switch off ignition.
2.Disconnect battery negative lead and then
positive lead.
3.Open glovebox and disconnect harness
connector from airbag module.
4.Use special socket and long extension, remove
2 torx head screws securing front of airbag
module to fascia panel.
5.Use special socket, remove 2 torx head screws
securing rear of airbag module to fascia panel.
6.Release airbag module from fascia panel.
CAUTION: Do not allow the airbag module
to hang by the airbag harness.
7.Carefully and without pulling on connector
remove airbag module.
CAUTION: Store the airbag module in
accordance with the storage procedures
described in Description and Operation.
NOTE: If airbag module is to be replaced
the serial number must be recorded in the
vehicle service record.
Refit
8.Reverse removal procedure.
9.Tighten airbag module securing screws to
8Nm
(6 lbf ft).
CAUTION: Take care not to cross thread
screws.
10.Check Supplementary Restraint System using
Testbook.

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REPAIR SRS WARNING LIGHT BULBS
Service repair no - 76.73.74
Remove
1.Remove instrument binnacle.
See
ELECTRICAL, Repair, instrument binnacle.
2.Remove window and face plate from instrument
panel.
3.Remove 3 screws securing ECU to instrument
panel.
4.Release and remove small cover from ECU.
5.Disconnect multiplug from ECU.
6.Remove ECU
7.Remove 4 screws securing tachometer.
8.Remove tachometer.

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REPAIR
9.Carefully remove 2 screws securing face plate to
tachometer.
10.Release warning light housing from tachometer
circuit board.
11.Carefully (to avoid damage to tachometer needle
and spindle), tilt and remove warning light
housing.
12.Remove 2 warning light bulbs.Refit
13.Reverse removal procedure.
14.Fit new warning light bulbs.
15.Carefully fit warning light housing, ensuring that
locating pegs engage correctly and that retaining
clips lock housing into position.
16.Ensure that tachometer needle is on the correct
side of its stop.
17.Fit instrument binnacle.
See ELECTRICAL,
Repair, instrument binnacle.

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REPAIR AIRBAG MANUAL DEPLOYMENT
CAUTION: Deployment in the vehicle will
damage the steering wheel; if the vehicle
is not being scrapped deploy the module
away from the vehicle in accordance with the
separate procedure.
If a vehicle is to be scrapped and contains an
undeployed airbag module, the module must be
manually deployed. This operation should only be
carried out using the following recommended manual
deployment procedure.
Before deployment is started the deployment tool self
test procedure should be carried out.
Deployment tool SMD 4082/1 self test procedure
1.Insert BLUE and YELLOW connectors of tool
lead into corresponding sockets on face of tool.
2.Connect crocodile clips of second tool lead to
battery, RED to positive and BLACK to negative.
3.RED "READY" light should illuminate.
4.Press and hold both operating buttons.5.GREEN "DEFECTIVE" light should illuminate.
6.Release both operating buttons.
7.RED "READY" light should illuminate.
8.Disconnect tool from battery.
9.Disconnect blue and yellow connectors from tool
face sockets.
10.Self test now complete.
Deployment with module fitted to vehicle
These guidelines are written to aid authorised
personnel to carry out the safe disposal of the airbag
module when fitted to the vehicle.
WARNING: Only use the LAND ROVER
approved deployment equipment. Deploy
airbag module in a well ventilated
designated area. Ensure airbag module is not
damaged or ruptured before deploying.
1.Carry out deployment tool self test.
2.Release 2 turnbuckles securing lower panel to
dash, remove lower panel.

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REPAIR
3.Knee bolster (where fitted); Remove 4 screws
and withdraw kneebolster.
4.Release airbag harness to column harness
connector from bracket.
5.Disconnect airbag harness connector from
column harness.
WARNING: Ensure tool is not connected to
battery.
6.Connect flyleadSMD 4082/5to column harness
connector.
7.Connect flyleadSMD 4082/5to toolSMD
4082/1.
WARNING: Ensure airbag module is
secure within steering wheel.
8.Connect toolSMD 4082/1to battery.
WARNING: Ensure all personnel are
standing at least 15 metres (50 ft) away
from vehicle.

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REPAIR
9.Press both operating buttons to deploy airbag
module.
10. DO NOTreturn to airbag module for 30 minutes.
11.Using gloves and face mask, remove airbag
module from steering wheel, place airbag
module in plastic bag and seal bag.
12.Transport deployed airbag module to designated
area for incineration.
NOTE: DO NOT transport airbag module in
the vehicle passenger compartment.
13.Scrap all remaining parts of airbag system.
DO NOTre-use or salvage any parts of the
airbag system including steering wheel.Deployment with module removed from vehicle.
Driver's Airbag Module
These guidelines are written to aid authorised
personnel to carry out the safe disposal of airbag
modules when removed from the vehicle.
WARNING: Only use the LAND ROVER
approved deployment equipment.
Deploy airbag modules in a well ventilated
designated area.
Ensure airbag module is not damaged or ruptured
before deploying.
1.Carry out deployment tool self test.
2.Remove airbag module from steering wheel.
See driver's airbag module.
3.Position toolSMD 4082/2in vice, ensuring that
vice jaws grip tool above bottom flange to
prevent possibility of tool being forced upwards
from vice. Tighten vice.