1995 LAND ROVER DISCOVERY ignition

STEERING
3
DESCRIPTION AND OPERATION Steering column components
1. Upper shroud
2. Column harness
3. Cruise control switch (if fitted)
4. Steering wheel and nut
5. Rotary coupler
6. Column switch
7. Shear bolts
8. Switch saddle
9. Upper steering column
10. Universal joint
11. Universal joint bolt
12. Steering column lock assembly13. Lower shroud
14. Column lock/ignition
15. Air bag mounting bracket (if fitted)
16. Air bag module
17. Steering pad (non-airbag)
18. Lower shaft
19. Rubber coupling
20. Compression joint
21. Universal joint
22. Universal joint bolt

57STEERING
12
REPAIR UPPER STEERING COLUMN
Service repair no - 57.40.01
NOTE: Steering column assembly is not a
serviceable component.
CAUTION: Before removing any parts of
steering linkage, it is imperative that road
wheels are positioned straight ahead. then
steering wheel removed to prevent rotary coupler
being wound up or damaged.
CAUTION: After refitting steering linkage
parts follow correct procedure to ensure
that road wheels, steering box and
steering wheel are correctly positioned relative to
each other when in straight ahead condition. if
steering wheel requires repositioning, ensure that
drive pegs on rotary coupler are correctly
positioned before steering wheel is replaced.
This ensures drive pegs locate in their holes in
rear of steering wheel.
After final alignment, connect rotary coupler
multiplug, tighten steering wheel securing nut and
fit airbag - if fitted or steering wheel trim pad and
horn push assembly.
Remove
1.Remove steering wheel.
See Steering Wheel
CAUTION: Prevent rotation of rotary
coupler once steering wheel is removed.
Secure in position with adhesive tape.
2.Remove driver's access panel.
3.Remove steering column shroud.
See Steering
Column Shroud
4.Remove rotary coupler.See
SUPPLEMENTARY RESTRAINT SYSTEM,
Repair, Rotary Coupler
5.If fitted - remove 4 screws securing knee bolster,
remove knee bolster.
6.Disconnect column switch multiplug.
7.Disconnect ignition switch multiplug from fuse
box.

STEERING
13
REPAIR
8.Disconnect ignition switch main feed multiplug.
9.Remove 4 nuts securing upper column to lower
mounting.
10.Remove 2 nuts securing lower mounting steady
bracket, remove bracket.
11.Remove pinch bolt securing upper column to
universal joint.
12.Remove 2 nuts and washes securing upper
column to upper mounting bracket.13.Carefully manoeuvre upper column out of
footwell, recover rubber boot.
NOTE: Do not carry out further
dismantling if upper column is removed
for access only.
14.Loosen but, do not remove screw securing
column switch assembly, withdraw assembly to
gain access to multiplugs.
15.Disconnect column switch multiplugs, remove
column switch assembly.
16.Disconnect ignition switch multiplug.
17.Remove shear bolts securing steering column
lock, remove lock and saddle; discard shear
bolts.
18.Withdraw bulb holder from column lock shroud.
19.Transfer components to new upper column,
connect multiplug.
NOTE: Do not shear column lock bolts at
this stage.

57STEERING
14
REPAIR Refit
20.Manoeuvre upper column to position in footwell,
ensure splines in column and universal joint are
correctly engaged and rubber boot is fitted.
21.Fit but do not tighten universal joint pinch bolt.
22.Position upper column to upper mounting, fit
washers and nuts, do not tighten nuts.
23.Fit but do not tighten nuts and bolts securing
upper column to lower mounting.
24.Fit lower mounting steady bracket, fit but do not
tighten nuts and bolts.
25.Ensure upper column is aligned to mountings.
26.Tighten all nuts and bolts to
22 Nm.
27.Tighten universal joint pinch bolt to25 Nm.
28.Connect column switch multiplug.
29.Connect ignition switch multiplugs.
30.Fit rotary coupler.
See SUPPLEMENTARY
RESTRAINT SYSTEM, Repair, Rotary
Coupler
31.Fit steering wheel.See Steering Wheel
32.Reconnect battery negative lead.
33.Check steering column lock for correct
operation, tighten shear bolts until heads shear
off.
34.If fitted - position knee bolster, fit and tighten
screws.
35.Fit steering column shroud.
See Steering
Column Shroud
36.Fit driver's access panel.

STEERING
15
REPAIR STEERING COLUMN LOCK ASSEMBLY
Service repair no - 57.40.31
Remove
CAUTION: Before removing any parts of
steering linkage, it is imperative that road
wheels are positioned straight ahead.
Then steering wheel removed to prevent rotary
coupler being wound up or damaged.
CAUTION: After refitting steering linkage
parts follow correct procedure to ensure
that road wheels, steering box and
steering wheel are correctly positioned relative to
each other when in straight ahead condition. If
steering wheel requires repositioning, ensure that
drive pegs on rotary coupler are correctly
positioned before steering wheel is replaced.
This ensures drive pegs locate in their holes in
rear of steering wheel.
After final alignment connect rotary coupler
multiplug, tighten steering wheel securing nut and
fit airbag module - if fitted.
1.Disconnect battery negative lead.
2.Remove steering column shroud.
See Steering
Column Shroud
3.Release turnbuckles, lower driver's access
panel.
4.If fitted, remove 4 screws securing knee pad,
remove bolster.
5.Disconnect ignition switch multiplug from fuse
box.
6.Disconnect ignition switch main feed multiplug.

BRAKES
19
REPAIR SENSORS - REAR
Service repair no - 70.65.31
CAUTION: If a sensor is removed for any
reason, a NEW sensor bush must be fitted.
Remove
1.Disconnect battery negative lead.
2.Disconnect sensor electrical connections,
located above rear axle.
3.Remove sensor from its locating clip.
4.Remove bolts securing mudshield.
5.Using a suitable lever, pry sensor from mounting
bush.
6.Release harness cable ties, remove sensor lead
from vehicle.
7.Remove sensor bush.
Refit
8.Fit new sensor bush.
9.Lightly grease new sensor using silicone grease.
See LUBRICANTS, FLUIDS AND
CAPACITIES, Information, Recommended
Lubricants and Fluids
10.Push sensor through bush until it touches exciter
ring. Sensor will be 'knocked back' to correct
position when vehicle is driven.
11.Secure harness in position.
12.Reconnect sensor electrical connection.
13.Drive vehicle to ensure ABS warning light is
extinguished.STOP LIGHT SWITCH ABS
Service repair no - 86.65.51
Remove
1.Turn ignition off. Disconnect battery negative
lead.
2.Remove lower trim panel.
3.Disconnect multiplug to switch.
4.Depress brake pedal access front of switch.
5.Pull sleeve and plunger of switch FULLY
forward.
6.Remove switch rearwards
NOTE: If switch is difficult to release,
check sleeve is FULLY forward.
Refit
7.Pull sleeve and plunger of switch fully forward.
8.Depress brake pedal, fit switch. Ensure retaining
clips are FULLY located.
9.Hold switch firmly in place, pull brake pedal back
fully to set switch.
10.Reconnect battery and turn ignition on.
11.Check switch operation by slowly depressing
brake pedal and checking that the switch clicks
twice.
12.Check stop lamps go off when pedal is released.
13.Recheck switch is securely fitted.
14.Operation may be checked using Testbook.

SUPPLEMENTARY RESTRAINT SYSTEM
5
DESCRIPTION AND OPERATION
7.Do not use electrical test equipment on the
airbag harness or connectors. Tampering with or
disconnecting the harness could result in
accidental firing of the airbag or make the
system inoperative, which may result in serious
injury.
8. An airbag system fault can only be
diagnosed using TestBook.
9.The airbag module contains Sodium Azide which
is poisonous and extremely flammable. Contact
with water, acid or heavy metals may produce
harmful or explosive compounds. Do not
dismantle, incinerate or bring into contact with
electricity.VEHICLE RECOVERY
Towing - airbag not deployed
Normal towing procedures are unlikely to cause an
airbag to deploy. However, as a precaution switch the
ignition off and then disconnect both battery leads.
Disconnect the negative '-' lead first.
Towing - airbag deployed
Once the driver's airbag has been deployed the
vehicle must have a front suspended tow. However,
as a precaution switch the ignition off and then
disconnect both battery leads. Disconnect the
negative '-' lead first.

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.