1995 LAND ROVER DISCOVERY steering wheel

74WHEELS AND TYRES
2
REPAIR When the indicators appear in two or more adjacent
grooves, at three locations around the tyre, a new tyre
must be fitted.
NOTE: Do not attempt to interchange
tyres, e.g. from front to rear, as tyre wear
produces characteristic patterns
depending on their position. If tyre position is
changed after wear has occured, the performance
of the tyre will be adversely affected.
NOTE: Territorial vehicle regulations
governing tyre wear MUST be adhered to.
WHEELS INSPECTION
Regularly check the condition of the wheels. Replace
any wheel that is bent, cracked, dented or has
excessive runout.
VALVES INSPECTION
Check condition of inflation valve. Replace any valve
that is worn, cracked, loose, or leaking air.TYRE PRESSURES
Maximum tyre life and performance will be
obtained only if tyres are maintained at the correct
pressures.
Tyre pressures must be checked at least once a
month and at least once a week, preferably daily, if
the vehicle is used off road.
The tyre inflation pressure is calculated to give the
vehicle satisfactory ride and steering characteristics
without compromising tyre tread life. For
recommended tyre pressures in all conditions.
See
GENERAL SPECIFICATION DATA, Information,
Wheels and Tyres
American vehicles - A label attached to the inside
edge of the driver's door also provides tyre pressure
information.
Always check tyre inflation pressures using an
accurate gauge and inflate tyres to the
recommended pressures only.
Check and adjust tyre pressuresONLYwhen the
tyres are cold, vehicle parked for three hours or more,
or driven for less than 3.2 km (2 miles) at speeds
below 64 km/h (40 mph). Do not reduce inflation
pressures if the tyres are hot or the vehicle has been
driven for more than 3.2 km (2 miles) at speeds over
64 km/h (40 mph), as pressures can increase by 0.41
bars (6 p.s.i) over cold inflation pressures.
CheckALLtyre pressures including the spare. Refit
the valve caps as they form a positive seal and keep
dust out of the valve.

SUPPLEMENTARY RESTRAINT SYSTEM
3
FAULT DIAGNOSIS
4.Airbag modules
A- If defective, replace and dispose of the entire unit
as directed in the instructions. Under no
circumstances should a diagnosis be performed using
electrically powered test equipment or probing
devices.
B- Tampering or mishandling can result in personal
injury. For special handling instruction refer to the
Workshop manual. This airbag module cannot be
repaired. Use diagnostic instructions to determine if
the unit is defective.
C- ROVER Bar code - The code number must be
recorded if the airbag module is to be replaced.
5.Steering wheel
Refer to the Owner's Handbook for information
on the airbag system.

SUPPLEMENTARY RESTRAINT SYSTEM
1
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.

75SUPPLEMENTARY RESTRAINT SYSTEM
2
REPAIR
5.Disconnect airbag harness connector from
yellow airbag column harness.6.Use special socket, unscrew 2 tamper-proof
Resistorx screws securing airbag module to
steering wheel.
7.Release airbag module from steering wheel.
CAUTION: Do not allow the airbag module
to hang by the airbag harness.

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.

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.