1995 LAND ROVER DISCOVERY steering

SUPPLEMENTARY RESTRAINT SYSTEM
5
REPAIR
5.Remove 3 screws securing lower half of nacelle
to steering column.
6.Separate the 2 halves of the nacelle and remove
from steering column.
7.Release airbag harness connector from bracket
and disconnect.
8.Disconnect rotary coupler connector from
steering column harness.
9.Release 2 clips securing rotary coupler to
column switch assembly.
10.Remove rotary coupler from column switch
assembly.

75SUPPLEMENTARY RESTRAINT SYSTEM
6
REPAIR
11.If rotary coupler is being re-used, place a piece
of adhesive tape around moulding in positionA
to prevent rotation.
Refit
12.Reverse removal procedure.
CAUTION: Ensure indicator cancellation
pegs correctly engage into back of
steering wheel.13.Align direction indicator cancellation bush. If
original rotary coupler is being fitted remove
adhesive tape and then fit rotary coupler to
column switch assembly.
NOTE: If original rotary coupler is to be
fitted and there is evidence of tampering, it
is imperative that the coupler is
centralised.
See rotary coupler centralise.
14.If a new rotary coupler is being fitted and the
sealing tape at positionBis broken it MUST
NOT be used.
15.Refit steering wheel.
See steering wheel.
16.Turn steering wheel to both LH and RH lock 5
times. If adverse noises can be heard, check
alignment of indicator cancellation pegs.
17.Refit driver's airbag module.
See driver's
airbag module.

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.

75SUPPLEMENTARY RESTRAINT SYSTEM
8
REPAIR
3.Remove 3 screws securing lower half of nacelle
to steering column.
4.Separate the halves of the nacelle and remove
from steering column.
5.Release 2 clips securing rotary coupler to
column switch assembly.
6.Release rotary coupler.
CAUTION: Do not allow rotary coupler to
hang on its harness.
7.Disconnect 4 connectors from column switch
assembly.
8.Remove column switch assembly from steering
column.
Refit
9.Reverse removal procedure.

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.

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
15
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.

75SUPPLEMENTARY RESTRAINT SYSTEM
16
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.