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SUPPLEMENTARY RESTRAINT SYSTEM
3
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.
Page 652 of 873

SUPPLEMENTARY RESTRAINT SYSTEM
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REPAIR ROTARY COUPLER CENTRALISE
Fitting a rotary coupler which has not been centralised
could result in tape breakage. If the tape is broken, a
new rotary coupler must be fitted.
Providing the removal procedure has been correctly
followed this operation should not be necessary. If
however there is evidence of tampering, it is
imperative that the coupler is centralised.
CAUTION: Ensure wheels are positioned
straight ahead before fitting the rotary
coupler.
1.Correctly fit rotary coupler to column switch
assembly but do not fit steering wheel or make
any electrical connections.
See rotary coupler.
2.Depress rotary coupler locking peg and without
using undue force, rotate coupler anti-clockwise
as far as inner tape will allow. Releasing peg will
lock coupler in its current position.
NOTE: Do not apply excessive force when
limit is reached as this may result in tape
breakage. If no limit can be found, tape
has already broken and rotary coupler must be
replaced.
3.Having turned rotary coupler fully anti-clockwise
to limit position, proceed to turn coupler 2.5 turns
clockwise to obtain central position. (Coupler will
normally rotate a full five turns from
anti-clockwise limit to clockwise limit).
4.Make necessary electrical connections and refit
steering wheel.
See steering wheel.
5.Refit driver's airbag module.See driver's
airbag module.
COLUMN SWITCH ASSEMBLY
Service repair no - Indicator/lighting - 86.65.55
Service repair no - Wash/wipe - 84.15.34
Remove
1.Remove steering wheel.
See steering wheel.
2.Release 2 turnbuckles and remove lower dash
panel.
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75SUPPLEMENTARY RESTRAINT SYSTEM
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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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SUPPLEMENTARY RESTRAINT SYSTEM
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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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SUPPLEMENTARY RESTRAINT SYSTEM
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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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SUPPLEMENTARY RESTRAINT SYSTEM
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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 tool, place airbag module in plastic
bag and seal bag.
12.Wipe down tool with damp cloth.
13.Transport deployed airbag module to designated
area for incineration.
NOTE: DO NOT transport airbag module in
the vehicle passenger compartment. DO
NOT re-use or salvage any parts of the
airbag system including steering wheel or
steering column.Passenger's Airbag Module
1.Carry out deployment tool self test.
2.Remove airbag module from fascia.
See
passenger's airbag module.
3.Position toolSMD 4082/6in vice, ensuring that
vice jaws grip tool above bottom flange to
prevent possibility of tool being forced upwards
from vice. Tighten vice.
4.Position bracketsSMD 4082/7to tool; lightly
tighten bolts.
Page 680 of 873

CHASSIS AND BODY
13
REPAIR 8.Remove the screws securing the lock control
mechanism pivot bracket and the door pull
mounting bracket, ease the bracket from the lock
barrel stem and remove from the door.
9.Remove the two screws and withdraw the
childproof lock actuator.
10.Disconnect the adjustable lock rod from the
outer 'Y' lever.
11.Remove the centre pin from the outer 'Y' lever
pivot and release the pivot from the door.
12.Remove the three lock securing screws and
manoeuvre the lock and 'Y' lever out of the door
panels.
13.Disconnect the number plate light leads from the
door harness.
14.Remove the 'E' clip securing the fulcrum to the
barrel stem and withdraw the fulcrum and lock
rod.
15.From inside the door panel remove the nuts and
washers securing the lock barrel and number
plate light housing.
16.Remove the logo from the housing and working
through the logo aperture, remove the single bolt
securing the housing.
17.Partially withdraw the housing and its rubber
seal from the door, displace the rubber grommet
from the door panel, withdraw the number plate
light leads and complete the removal of the
housing and seal from the door.
18.Remove the connecting rod from the outer door
handle lever.
19.Remove the two nuts and washers securing the
outer handle from inside the door panels and
detach the handle and seal.
Page 681 of 873

76CHASSIS AND BODY
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REPAIR Lock barrel and number plate light housing
Disassemble
NOTE: The lock barrel can only be
removed from its housing when the lock
barrel and number plate light housing is
removed from the door.
20.Remove the bolt securing the lock barrel
mounting bracket to the housing and withdraw
the assembled barrel and bracket.
21.Remove the 'O' ring seal from inside the
housing.
22.Remove the spring clip securing the barrel to the
bracket and withdraw the barrel and stem
assembly from the bracket complete with seal.
23.Remove the 'U' clip securing the stem to the
barrel and detach the seal from the inner face of
the barrel.
24.If the lock barrel and number plate light housing
is being renewed, remove the number plate
lights, harness and the housing mounting
bracket, from the existing housing and fit them to
the new housing.
Reassemble
25.Fit the stem to the barrel and secure with the 'U'
clip.
26.Position a new seal on the inner face of the
barrel, insert the stem and barrel into the
mounting bracket and secure with the spring clip.
27.Place a new 'O' ring seal on the inner face of the
barrel aperture in the housing.
28.Insert the assembled bracket and barrel into its
location in the housing, taking care not to disturb
the seal, and secure with the bolt.Refit
29.Fit the outer handle to the door and secure from
the inside with the two nuts and washers.
30.Fit the lock barrel and number plate light housing
by inserting the number plate light leads through
the aperture in the door panel and locating the
rubber grommet in the aperture. Insert the barrel
stem through the door, locate the housing on the
door panel, ensure that the seal seats correctly,
and secure with the single bolt and washer
through the logo aperture.
31.Connect the number plate light leads to the door
harness.
32.Fit the logo to the aperture in the housing.
33.Fit the fulcrum and connecting rod to the barrel
stem and secure with secure with the 'E' clip.
34.Fit the lock and assembled outer 'Y' lever,
secure the lock with the three screws, locate the
'Y' lever pivot and secure with the pin.
35.Fit the connecting rod from the outer handle
lever to the outer 'Y' lever.
36.Fit the childproof lock actuator and check that it
is functioning.
37.Insert the remote button and rod to the location
in the door.
38.Offer up the assembled inner 'Y' lever and
bracket, attach the barrel connecting rod to the
top clip of the upper leg and the rod from the
lock to the lower clip of the upper leg.
39.Locate the barrel stem in the insert on the
bracket.
40.Secure the bracket with the four screws; fitting
the door pull mounting bracket under the heads
of the top two screws.
41.Attach the remote button and the actuator
connecting rods to the 'Y' lever.
42.Fit the inner release handle and attach the
connecting rod to the lock.
43.Refit the vapour protective sheet, door trim panel
and door pull.