service LAND ROVER DISCOVERY 1995 Workshop Manual

SUPPLEMENTARY RESTRAINT SYSTEM
7
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.

SUPPLEMENTARY RESTRAINT SYSTEM
9
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.

75SUPPLEMENTARY RESTRAINT SYSTEM
10
REPAIR CRASH SENSOR - DISTRIBUTED SRS
Service repair no - 76.74.04
Remove
1.Disconnect battery negative lead.
2. LH sensor only:Slacken power steering
reservoir clamp and lift reservoir to provide
access.
Diesel model only:Remove jack and mounting
bracket.
3.Disconnect multiplug from sensor
CAUTION: Ensure airbag harness
connector seal and anti-backout DO NOT
come adrift when disconnecting sensor.
4.Use special socket, remove 2 screws securing
crash sensor to body.
5.Remove crash sensor.Refit
6.Reverse removal procedure.
7.Tighten crash sensor securing screws to
10 Nm
(7 lbf ft).
Ensure multiplug is fully engaged on
sensor and retained by its latch.
8.Check Supplementary Restraint System using
Testbook.

SUPPLEMENTARY RESTRAINT SYSTEM
11
REPAIR AIRBAG DIAGNOSTIC CONTROL UNIT -
DISTRIBUTED SRS
Service repair no - 76.74.03
Remove
1.Disconnect battery negative lead.
2.Remove centre console assembly.
See
CHASSIS AND BODY, Repair, centre
console.
3.Remove 4 screws and release the 2 rear
passenger air ducts from their fitted position and
remove centre console mounting bracket.
4.Use flat ended screwdriver and release
YELLOW retainer, pull retainer 30mm (1 1/8 in)
from multiplug and disconnect airbag harness
multiplug from airbag control unit.
5.Use special socket, remove 2 screws securing
airbag control unit to body bracket.
6.Remove airbag diagnostic control unit.
Refit
7.Reverse removal procedure.
8.Tighten control unit securing screws to
10Nm (7
lbf ft).
9.Check Supplementary Restraint System using
Testbook.

75SUPPLEMENTARY RESTRAINT SYSTEM
12
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.

75SUPPLEMENTARY RESTRAINT SYSTEM
14
REPAIR AIRBAG HARNESS
Service repair no - 86.70.63
Remove
1.Remove driver's airbag.
See driver's airbag
module.
2.Remove passenger's airbag.See passenger's
airbag module.
3.Remove dash panel assembly.See CHASSIS
AND BODY, Repair, dash panel assembly
4.Remove heater blower unit.See HEATING
AND VENTILATION, Repair, blower motor
unit - heater and air conditioning.
5.Remove heater and cooler unit.See AIR
CONDITIONING, Repair, heater and cooler
unit
Pre 97 MY
6.Remove 3 screws securing expansion tank and
position expansion tank aside.
7.Disconnect multiplug from each crash sensor.
8.Release airbag harness from clips and ties along
the bulkhead and each valance.
9.Displace airbag harness grommet to inside of
bulkhead and feed harness through bulkhead.
All Models
10.Disconnect multiplug from airbag control unit.
11.Release airbag harness from under carpet.
12.Release ties securing harness along toeboard.
13.Disconnect steering wheel airbag multiplug.
14.Release airbag harness from driver's side and
remove.
Refit
15.Reverse removal procedure.
CAUTION: Ensure harness is correctly
routed in harness protector and that all
securing clips and ties are correctly
engaged and harness is undamaged. Ensure all
connections are fully engaged and retained by
their latches.

SUPPLEMENTARY RESTRAINT SYSTEM
21
REPAIR
10.Press both operating buttons to deploy airbag
module.
11. DO NOTreturn to airbag module for 30 minutes.
12.Using gloves and face mask, remove airbag
module from tool, place airbag module in plastic
bag and seal bag.
13.Wipe down tool with damp cloth.
14.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.AIRBAG DIAGNOSTIC CONTROL UNIT - SPS SRS
Service repair no - 76.74.03
Remove
1.Remove centre console.
See CHASSIS AND
BODY, Repair, centre console.
2.Disconnect connector from control unit.
3.Remove 2 Torx bolts securing control unit to
body.
4.Remove control unit.
Refit
5.Position control unit to body, fit Torx bolts and
tighten to
10 Nm (7 lbf ft).
6.Connect control unit connector and secure.
7.Fit centre console.
See CHASSIS AND BODY,
Repair, centre console.
8.Check supplementary restraint system using
TestBook.

CHASSIS AND BODY
1
REPAIR FRONT DOOR
Service repair no - 76.28.01
Remove
1.Disconnect battery negative lead.
2.Detach the door seal at the lower section of the
'A' post.
3.Carefully remove the two retaining buttons from
the trim panel on the side of the footwell and
ease out the panel.
4.Disconnect the three multiplugs connecting the
door harness and speaker leads.
5.Detach the convoluted grommet from the 'A' post
and withdraw the door harness and speaker
leads.
6.Set the door in the open position without
engaging the check stay; then remove the roll
pin securing the check stay at the 'A' post.
WARNING: Instruction 7 MUST BE carried
out with assistance.
7.Remove the door hinge 'C' clips from the hinge
posts and with assistance carefully lift the door
from the vehicle.
Refit
8.Refit the door and secure the hinge posts with
the 'C' clips.
9.Locate the check stay to the bracket on the 'A'
post and secure with a new roll pin.
10.Feed the door harness and speaker leads
through the aperture in the 'A' post, fully open
the door and reconnect the multiplugs in the
footwell, take up the slack and refit the
convoluted grommet to the 'A' post.
11.Refit the footwell side panel.
12.Check the location of the door and the operation
of the door lock. If necessary, adjust the door
and striker.
13.The door can be adjusted up and down or in and
out of the opening by loosening the six screws
securing the hinges to the door, and by the
addition or removal of shims between the hinge
and door.
14.The door lock striker can be adjusted by
loosening the striker and moving it in the
appropriate direction or by adding and removing
spacing washers between the striker and 'B'
post.

76CHASSIS AND BODY
2
REPAIR FRONT DOOR TRIM PANEL
Service repair no - 76.34.01
Remove
1.Remove the two securing screws and detach the
door pull from its mounting brackets on the inner
door panel.
2.Remove the interior door handle finisher button
to reveal the screw retaining the handle
surround.
3.Remove the screw and detach the handle
surround from the trim panel.
4.Where applicable remove the window winder.
5.Detach the trim panel by inserting a trim panel
removing tool between the trim panel and the
inner door panel, gently prise out the fourteen
plastic securing clips from their respective holes
in the inner door panel.
6.Disconnect the two speaker connections from
inside the door and remove the trim panel
complete with speaker, and door bin.
7.If a new trim panel is to be fitted, remove the
speaker, door bin and remote button finisher
from the existing trim panel and fit them to the
new panel.
Refit
8.Reverse removal procedure.FRONT DOOR GLASS AND REGULATOR
Service repair no - 76.31.45
Remove
1.Ensure the window is in the fully closed position
and secure with adhesive tape to prevent the
window from dropping down.
2.Disconnect battery negative lead.
3.Remove the door trim panel.
See front door
trim panel.
4.Remove the plastic vapour barrier.
5.Where applicable remove the window lift motor.
See ELECTRICAL, Repair, window lift motor
- front.
6.Remove the four window regulator retaining
screws and shakeproof washers from the inner
door panel.
7.Remove the two screws and shakeproof
washers retaining the lower window lift channel,
and slide the channel off the stud.

76CHASSIS AND BODY
4
REPAIR FRONT DOOR LOCK, OUTSIDE AND INSIDE
DOOR RELEASE HANDLES
Service repair no - 76.37.12/31
Remove
1.Disconnect battery negative lead.
2.Remove the door trim panel.
See front door
trim panel.
3.Remove the door glass and regulator.See
front door glass and regulator.
4.Where applicable remove the door actuator unit.
See ELECTRICAL, Repair, front door
actuator unit.
5.Disconnect the lock barrel control rod from the
lock by releasing the metal clip at the bottom of
the rod.6.Disconnect the control rod from the outside door
release handle by pulling it out of the plastic
ferrule.
7.Disconnect the remote button control rod from
the lock by releasing the metal clip at the bottom
of the rod and withdraw the rod from the door.
8.Disconnect the control rod connector between
the inside door release handle and the door lock
by releasing the metal clip and pulling one of the
control rods out of the plastic connecting block.
This is accessible through the small centre
cut-out in the door panel. The control rod also
passes through a guide bracket in the inside of
the inner door panel.
9.From inside the door panel push out the small
pin that secures the quadrant to the inner door
panel. Push the quadrant out of the panel.
10.Release the door lock by removing the two
counter-sunk screws from the door edge and the
single screw and shakeproof washer on the
inner door panel.