1995 LAND ROVER DISCOVERY service

SUPPLEMENTARY RESTRAINT SYSTEM
3
REPAIR
8.Disconnect harness connector from airbag
module.
9.Remove airbag module.
CAUTION: Store the airbag module in
accordance with the storage procedures
outlined in Description and Operation.
NOTE: If airbag module is to be replaced
the serial numbers must be recorded in
the vehicle service record.
Refit
10.Reverse removal procedure.
11.Connect harness connector to airbag module
with harness downwards (as shown at 8).
12.Position airbag module on steering wheel and
engage retained screws. Use special socket to
tighten screws to
8Nm (6 lbf ft).
CAUTION: Take care not to cross thread
screws.
13.Check Supplementary Restraint System using
Testbook.STEERING WHEEL
Service repair no - 57.60.01
Remove
1.Remove driver's airbag module.
See driver's
airbag module.
2.Position steering wheel so the road wheels are
in the straight ahead position.
3.Disconnect cruise control switch connector
(where fitted) from rotary coupler harness.
4.Release harnesses from clip on steering wheel.
5.Remove steering wheel nut.
6.Release steering wheel from column.
7.Feed harnesses through hole in steering wheel.
8.Remove steering wheel.
CAUTION: Prevent rotation of rotary
coupler once steering wheel is removed.
Secure in position with adhesive tape.

75SUPPLEMENTARY RESTRAINT SYSTEM
4
REPAIR Refit
9.Reverse removal procedure.
CAUTION: Ensure road wheels are straight
ahead before fitting steering wheel.
10.Fit steering wheel ensuring the rotary coupler
lugs are correctly engaged.
11.Fit steering wheel nut. Tighten to
50 Nm (37 lbf
ft).
12.Refit driver's airbag module.See driver's
airbag module.
ROTARY COUPLER
Service repair no - 76.74.07
CAUTION: Ensure wheels are straight
ahead before removal and refitting. Store
in plastic bag. DO NOT rotate mechanism
whilst removing.
Remove
1.Remove driver's airbag module.
See driver's
airbag module.
2.Remove steering wheel.See steering wheel.
3.Release lever and lower steering column.
4.Release 2 turnbuckles and remove lower dash
panel.

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.