steering LAND ROVER DISCOVERY 1995 Workshop Manual

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.

SUPPLEMENTARY RESTRAINT SYSTEM
17
REPAIR
9.Press both operating buttons to deploy airbag
module.
10. DO NOTreturn to airbag module for 30 minutes.
11.Using gloves and face mask, remove airbag
module from steering wheel, place airbag
module in plastic bag and seal bag.
12.Transport deployed airbag module to designated
area for incineration.
NOTE: DO NOT transport airbag module in
the vehicle passenger compartment.
13.Scrap all remaining parts of airbag system.
DO NOTre-use or salvage any parts of the
airbag system including steering wheel.Deployment with module removed from vehicle.
Driver's Airbag Module
These guidelines are written to aid authorised
personnel to carry out the safe disposal of airbag
modules when removed from the vehicle.
WARNING: Only use the LAND ROVER
approved deployment equipment.
Deploy airbag modules in a well ventilated
designated area.
Ensure airbag module is not damaged or ruptured
before deploying.
1.Carry out deployment tool self test.
2.Remove airbag module from steering wheel.
See driver's airbag module.
3.Position toolSMD 4082/2in vice, ensuring that
vice jaws grip tool above bottom flange to
prevent possibility of tool being forced upwards
from vice. Tighten vice.

SUPPLEMENTARY RESTRAINT SYSTEM
19
REPAIR
9.Press both operating buttons to deploy airbag
module.
10. DO NOTreturn to airbag module for 30 minutes.
11.Using gloves and face mask, remove airbag
module from tool, place airbag module in plastic
bag and seal bag.
12.Wipe down tool with damp cloth.
13.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 including steering wheel or
steering column.Passenger's Airbag Module
1.Carry out deployment tool self test.
2.Remove airbag module from fascia.
See
passenger's airbag module.
3.Position toolSMD 4082/6in vice, ensuring that
vice jaws grip tool above bottom flange to
prevent possibility of tool being forced upwards
from vice. Tighten vice.
4.Position bracketsSMD 4082/7to tool; lightly
tighten bolts.

SUPPLEMENTARY RESTRAINT SYSTEM
1
SPECIFICATIONS, TORQUE TORQUE VALUES
NOTE: Torque wrenches should be regularly checked for accuracy to ensure that all fixings are
tightened to the correct torque.
Nm
Airbag module screws 8 (6 lbf ft)...........................................................................
Steering wheel nut 50 (37 lbf ft)..............................................................................
Crash sensor screws (Distributed SRS) 10 (7 lbf ft)..............................................
Control unit 10 (7 lbf ft)...........................................................................................

CHASSIS AND BODY
47
REPAIR
14.Remove 2 screws securing louvre panel.
15.Remove louvre panel from dash panel.
Refit
16.Position louvre panel, feed harness connectors
through their correct apertures,and align to dash
panel.
CAUTION: When refitting avoid trapping of
electrical wiring.
17.Fit and tighten screws securing louvre panel.
18.Fit panel retaining screw cover.
19.Position heater control unit to panel and secure
with screws.
20.Fit heater graphic display panel and secure with
screws.
21.Fit heater control and blower switch knobs.
22.Fit clock.
See ELECTRICAL, Repair, clock.
23.Position coin tray and secure to tags.
24.Position radio cage, feed electrical connectors
and aerial through cage, and position to panel.
25.Bend back radio cage retaining tags.
26.Fit radio.
See ELECTRICAL, Repair, radio.
27.Connect battery negative lead.DASH PANEL ASSEMBLY
Service repair no - 76.46.23
Remove
1.Move front seats to rearmost position.
2.Disconnect battery negative lead.
3.Disconnect air bag multiplugs under dash panel.
CAUTION: When air bags are fitted,
reference must be made to the Airbag
Supplementary Restraint System section.
4.Remove passenger glove box.
5.Remove driver's side access panel.
6.Remove centre console assembly.
See centre
console.
7.Remove airbag from steering wheel.See
SUPPLEMENTARY RESTRAINT SYSTEM,
Repair, driver's airbag module.
8.Remove passenger's airbag from dash panel.
See SUPPLEMENTARY RESTRAINT SYSTEM,
Repair, passenger's airbag module.
9.Release clamp and lower steering column.
10.Remove steering wheel.
See STEERING,
Repair, steering wheel.
11.Remove column switch.See
SUPPLEMENTARY RESTRAINT SYSTEM,
Repair, column switch assembly.
12.Remove instrument binnacle.See
ELECTRICAL, Repair, instrument binnacle.
13.Remove radio.See ELECTRICAL, Repair,
radio.
14.Remove exterior mirrors switch panel.
15.Remove coin tray.
16.Remove switch panel.
17.Remove clock.
18.Undo screw securing mounting bracket and
position passenger's side relay assembly aside.
19.Set heater controls fully clockwise.

76CHASSIS AND BODY
48
REPAIR 20.Note position of levers, disconnect heater control
cables from levers and outer cable from retaining
clips.
21.Remove 4 bolts securing dash panel to centre
lower mounting brackets.
22.Remove 4 bolts securing dash panel to side
lower mounting brackets.
23.Undo 4 screws and remove 2 driver's knee
bolster pads from below steering column.
24.Remove 4 nuts securing instrument mounting
bracket to dash panel.
25. With assistance:Manoeuvre dash panel
partially rearward.
26.Driver's side: Disconnect 6 multiplugs
connecting dash harness to main harness.
27.Disconnect 3 multiplugs connecting dash
harness to fusebox.
28. With assistance:Lift dash panel rearward to
clear fixings and remove from vehicle.

82AIR CONDITIONING
4
FAULT DIAGNOSISFAULT CAUSE REMEDY
E.
NOISY
EXPANSION
VALVE
(steady hissing)1. Low refrigerant charge; evident by
bubbles in sight glass.1. Leak test. Repair or replace
components as required.
F.1. Expansion valve not operating 1. Refer to C-2, C-3, D-1
INSUFFICIENTproperly. and E.
COOLING2. Low refrigerant charge-evident 2. Refer to B-1 and E.
by bubbles in sight glass.
3. Compressor not pumping. 3. Refer to B-2 and B-3
G.1. Belt tension. 1. Adjust belt tension.
COMPRESSOR2. Excessive head pressure. 2. Refer to A-1 through
BELTA-4 and C-6.
SLIPPING3. Incorrect alignment of pulleys 3. Repair as needed.
or worn belt not riding properly.
4. Nicked or broken pulley. 4. Replace as needed.
5. Seized compressor. 5. Replace compressor.
1. Loose or missing mounting bolts. 1. Repair as necessary.
2. Broken mounting bracket. 2. Replace bracket.
3. Loose flywheel or clutch 3. Repair as necessary.
retaining bolt.
H.4. Rough idler pulley bearing. 4. Replace bearing.
ENGINE5. Bent, loose, or improperly 5. Repair as necessary.
NOISEmounted engine drive pulley.
AND/OR6. Defective compressor bearing. 6. Replace bearing.
VIBRATION7. Insecure mountings of 7. Repair as necessary.
accessories; generator, power
steering, air filter, etc.
8. Excessive head pressure. 8. Refer to A-1, A-2, A-3
A-4 and C-6.
9. Incorrect compressor oil level. 9. Refer to compressor Oil
Level Check.
HEATER AND AIR CONDITIONING - CIRCUIT
DIAGRAMS
1.For details of heating and air conditioning
electrics
See Electrical Trouble Shooting
Manual.

WIPERS AND WASHERS
1
DESCRIPTION AND OPERATION WINDSCREEN WIPER AND WASHER OPERATION
The illustration below locates and identifies the main
components of the windscreen and washer system
which is operated by a multi-switch on the right hand
side of the steering column.
All functions of the system are described in the
following paragraphs.
1. Multi-switch
2. Wiper motor
3. Wiper arm/blade
4. Washer reservoir
5. Windscreen washer motor/pump
6. Non return valve
7. Washer jet
8. Rear window washer motor pump
9. Non return valve10. Headlamp power wash motor/pump
11. Headlamp power washer jet
12. Non return valve
13. Rear window wiper switch
14. Rear window washer switch
15. Rear window wiper motor, arm and blade
16. Washer jet

84WIPERS AND WASHERS
2
DESCRIPTION AND OPERATION Wash wipe function
With the ignition switched on, power is supplied via a
fuse to the multi-switch, a control unit and a park
switch which is driven by the wiper motor.
Single wipe A
Pull the lever down and release immediately.
NOTE: With the lever held down, the
wipers will continue operating at high
speed until it is released.
Intermittent wipe B
Turn switch to second position.
Normal speed wipe C
Turn switch to second position.
Fast speed wide D
Turn switch to third position.
Variable delay (intermittent wipe)
Rotate the switch to vary the delay between wipes.
Windscreen washer E
Pull the lever towards the steering wheel. The
windscreen washers will operate in conjunction with
the wipers for as long as the lever is held in this
position.
Headlamp washers
The headlamp washers operate automatically
whenever the windscreen washers are operated,
provided the headlamps are illuminated and switched
to dipped beam. For continuous washing, hold the
windscreen washer control in the washposition E.
REAR WINDOW WIPER AND WASHER
OPERATION
The illustration J5375 also locates and identifies the
main components of the rear window wiper and
washer system which is operated by two switches
mounted on the right hand side of the instrument
binnacle.
Rear window wipe A
Press the switch to operate: after continuously wiping
3 or 4 times, the wiper operates intermittently (approx
once every 6 seconds) until switched off.
Rear window washer B
Press and hold the switch for the required duration of
rear screen washing. The wiper operates
automatically during washing and continues for a
further 3 wipes after the switch is released.