electrical LAND ROVER DISCOVERY 1995 Manual Online

76CHASSIS AND BODY
46
REPAIR DASH PANEL CENTRAL LOUVRE PANEL
Service repair no - 76.46.42
Remove
1.Disconnect battery negative lead.
2.Remove radio.
See ELECTRICAL, Repair,
radio.
3.Release tags securing radio cage to louvre
panel and remove cage.
4.Remove clock.
See ELECTRICAL, Repair,
clock.
5.Release 4 coin tray securing tags.
6.Remove coin tray.
7.Remove 3 heater control and blower switch
knob.
8.Remove 2 screws securing heater graphic
display panel and remove panel.
9.Remove 4 screws securing heater control unit to
panel.
10.Working through coin tray aperture, remove
screw securing panel.
11.Working through clock aperture, remove screw
securing panel.
12.Loosen 2 uppermost panel retaining screws.
NOTE: On some models the panel is fitted
with an LED. In this case, manoeuvre LED
from panel and disconnect.
13.Remove panel retaining screw cover.

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.

CHASSIS AND BODY
49
REPAIR Refit
CAUTION: When refitting avoid trapping
electrical wiring.
29.Reverse removal procedure.
30.With assistance: Position dash panel and
connect dash harness multiplugs to fusebox and
main harness.
31.Reverse removal procedure. Ensure dash panel
upper bracket studs are located before the 4
lower brackets.
32.Reverse removal procedure. Disconnect
glovebox switch Lucars to ease fitting of relay
bracket.WINDSCREEN GLASS
Service repair no - 76.81.01
Information
The following equipment is required:
·Cutting wire and handles
·Windscreen repair kit (see Technical
Bulletin).
See Electrical Trouble Shooting
Manual.Windscreen Glass Replacement.
·Sealant applicator gun.
·Suction cup lifters.
The following materials are included in the windscreen
repair kit:
·Glass cleaning solvent - 'Betawipe' Glass
activator (yellow cap).
·Cotton buds.
·Glass primer - 'Betaprime'(green cap).
·Body primer - 'Betaprime' paint/plastic
primer (red cap).
·Betaseal Adhesive sealant.
NOTE: The adhesive sealant cures in 6 to 8
hours
CAUTION: Once existing sealant is cut, the
exposed surfaces oxidises in
approximately 90 minutes. The refit
procedure must be completed within this time
span to prevent the sealant oxidising, to effect a
satisfactory joint.
CAUTION: If the windscreen aperture body
flange shows signs of corrosion it must be
treated with anti corrosion primer and
repainted. Newly painted areas must then be left
for 8 hours or more before applying adhesive
sealant.

76CHASSIS AND BODY
50
REPAIR
NOTE: If heated front screen: 2 electrical
multiplug connectors are located under
the decker [cowl] panel. To access release
decker panel.
Remove
1.Remove windscreen wiper arms.
See WIPERS
AND WASHERS, Repair, wiper arms -
windscreen.
2.Remove rear view mirror and stickers from
glass.
3.Remove'A'post finishers.
4.Fit protective cover over dash panel and apply
masking tape to protect'A'posts.
5.Ease one end of bottom finisher away from
glass, pull to disengage finisher flange and
remove.
6.Lift lip of LH'A'post finisher and release sealing
strip along its length, pull to disengage finisher
flange from glass and remove.7.Remove RH'A'post finisher.
8.Remove header finisher.
9.Apply masking tape to protect paint finish around
glass.
10.Prepare cutting wire in handle'A'.Bend end of
wire to handle and tape over end.
11.Force cutting wire through sealer from inside and
100mm (3 7/8 in) from a top corner. Use a
needle if necessary to make a pilot hole.
12.Attach handle'B'.Allow 200mm (7 7/8 in) of wire
between handles, tape over end of wire.
13. With an assistant on the inside:Wedge the
tube of the handle'A'between glass and body
flange 100mm (3 7/8 in) ahead of hole in sealer.
14. From the outside:Carefully cut sealer from
flange using a straight pull away from the glass.
Continue in 100mm (3 7/8 in) steps around the
glass, use a sawing action at the corners.
CAUTION: Along the bottom edge, great
care must be taken to cut up to the 2
supports, positions indicated on the
obscuration band (See item 18).
15.Remove handle'B', withdraw the cutting wire
and insert it through the sealer between the
supports. Refit handle'B'.

CHASSIS AND BODY
59
REPAIR
9.Remove 5 trim studs securing trim panel.
10.Remove trim panel.
Refit
11.Fit and align trim panel.
12.Fit trim panel retaining studs.
13.Position load space cover mounting bracket and
secure with screws.
14.Fold rear seat squab back and secure to latch.
15.Position load space cover to mounting brackets
and secure.
16.Fit 'E' post trim casing.
See 'E' post trim
casing - lh - with rear air conditioning fitted.
17.Fit fold down rear seat belts.See rear fold
down seat belts - lh - with rear air
conditioning fitted.
18.Fit rear fold down seat.See rear fold down
seats.
'E' POST TRIM CASING - RH
Service repair no - 76.13.13/03
Remove
1.Remove rear speaker.
See ELECTRICAL,
Repair, rear speaker.
2.Release 2 'E' post finisher retaining studs from
alpine light trim.
3.Release 2 'E' post finisher retaining clips from
lower trim panel.
4.Remove 'E' post finisher.
Refit
5.Position 'E' post finisher clips to lower trim panel.
6.Secure 'E' post finisher studs to alpine light trim.
7.Fit rear speaker.
See ELECTRICAL, Repair,
rear speaker.

76CHASSIS AND BODY
60
REPAIR 'E' POST TRIM CASING - LH - WITH REAR AIR
CONDITIONING FITTED
Service repair no - 76.13.13/20
Remove
1.Remove rear speaker.
See ELECTRICAL,
Repair, rear speaker.
2.Release 2 trim casing retaining screw covers.
3.Remove 2 screws securing trim casing.
4.Remove trim casing.
Refit
5.Fit and align trim casing.
6.Fit and tighten screws securing trim casing and
fit covers.
7.Fit rear speaker.
See ELECTRICAL, Repair,
rear speaker.
ALPINE LIGHT TRIM CASING - LH - WITH REAR
AIR CONDITIONING FITTED
Service repair no - 76.13.20/20
Remove
1.Remove 'E' post trim casing.
See 'E' post trim
casing - lh - with rear air conditioning fitted.
2.Remove rear seat belt anchorage retaining bolt
cover.
3.Remove bolt securing rear seat belt anchorage.
4.Remove 2 trim studs securing trim casing.
5.Release trim casing from 2 retaining studs.
6.Remove trim casing.
Refit
7.Fit and align trim casing and secure with studs.
8.Fit 2 trim studs securing trim casing.
9.Position seat belt anchorage, fit bolt and tighten
to
20 Nm (15 lbf ft).
10.Fit cover to seat belt anchorage bolt.
11.Fit 'E' post trim casing.
See 'E' post trim
casing - lh - with rear air conditioning fitted.

HEATING AND VENTILATION
3
DESCRIPTION AND OPERATION
Controls set for unheated air to footwells and face level vents
Heater and ventilation operation
The heating and ventilation system contains a heater
matrix, which is connected to the engine cooling
system, and a 4 speed fan for air distribution. Engine
coolant is circulated through the heater matrix
continuously, except when the temperature controls
are set to COLD.
Recirculated air
When the recirculation switch is pressed, an electrical
servo operates and fully closes the fresh air intake
flap.
Fresh air
When the recirculation switch is returned to the OFF
position, the electrical servo returns and fully opens
the fresh air intake flap.Heated air
Temperature output is controlled by the temperature
controls which move the air direction and temperature
flaps independently to increase or decrease the
volume of air flow through the heater matrix.
V8 Engine:When both controls are in the cold
position, the coolant valve is turned off.
Face level vent flap
Control at face level, flap fully open. All other vents
closed.
Control at face and foot level, flaps half open.
Unless an air conditioning unit is fitted, only fresh or
re-circulated air is available from the face level vents.
Demist vent flap
Control at demist, flap fully open. All other vents
closed.
Control at demist and foot level, flaps half open.

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.

AIR CONDITIONING
5
REPAIR COMPRESSOR
Service repair no - 82.10.20
Remove
1.Disconnect battery negative lead.
2.Recover refrigerant from air conditioning system.
See Adjustment, Refrigerant Recovery
Recycling Recharging
3.Remove screws retaining centre panel to fan
cowl
4.Remove centre panel.
V8i engine illustrated
5.Remove 2 bolts securing hose flanges to
compressor.
WARNING: Wear eye and hand protection
when disconnecting components
containing refrigerant. Plug all exposed
connections immediately.6.Disconnect high pressure hose from
compressor.
7.Disconnect low pressure hose from compressor.
8.Remove 'O' ring from each flange.
9.Disconnect electrical lead from compressor
clutch.
10.Release drive belt from compressor pulley.
See
ENGINE, Repair, Drive Belt
11.Remove 4 bolts securing compressor to
mounting bracket.
12.Remove compressor from mounting bracket.
Refit
13.New compressor to be fitted: Drain oil from new
compressor outlet port. Drain and measure oil
from old compressor. Measure new oil equal to
amount drained from old compressor, add 30 ml
extra to this amount and refill new compressor
through outlet port.
14.Locate compressor in mounting bracket, fit bolts.
Tighten to
25 Nm.
15.Connect electrical lead to compressor clutch.
16.Fit new 'O' rings to high and low pressure hose
flanges, lubricate with refrigerant oil.
17.Engage hose flanges, fit bolts. Tighten to
10
Nm.
18.Fit compressor drive belt.See ENGINE, Repair,
Drive Belt
19.Fit centre panel to fan cowl.
20.Evacuate and recharge air conditioning system.
See Adjustment, Refrigerant Recovery
Recycling Recharging
21.Perform a leak test on disturbed joints.
22.Carry out a functional check.

82AIR CONDITIONING
6
REPAIR CONDENSER
Service repair no - 82.15.07
Remove
1.Disconnect battery negative lead.
WARNING: Wear eye and hand protection
when disconnecting components
containing refrigerant. Plug all exposed
connections immediately.
2.Recover refrigerant from system.
See
Adjustment, Refrigerant Recovery Recycling
Recharging
3.Remove front grille panel.
4.Remove battery.
See ELECTRICAL, Repair,
Battery
5.Remove radiator and oil coolers assembly.See
COOLING SYSTEM, Repair, Radiator
6.Disconnect high and low pressure pipes at
condenser unions.
7.Discard 'O' ring seal from each union.
8.Remove 2 bolts securing condenser to body.
9.Pull condenser into radiator area.
10.Disconnect multiplug from each fan lead.
11.Remove condenser assembly.
Do not carry out
further dismantling if component is removed
for access only.
Blank off inlet and outlet ports.