electrical LAND ROVER DISCOVERY 1995 Workshop Manual

ELECTRICAL
43
REPAIR ANTI-THEFT ALARM ECU (96 MODELS)
Service repair no - 86.55.85
Remove
1.Remove 4 studs securing fascia left hand
closing panel.
2.Remove closing panel.
3.Disconnect 2 multiplugs from ECU.
4.Remove nut securing ECU/relay bracket.
5.Lower bracket.
6.Remove 2 nuts securing ECU to bracket.
7.Remove ECU.
NOTE: A new ECU must be initialised
using TestBook.
Refit
8.Reverse removal procedure.HANDSET (96 MODELS)
If vehicle does not respond to handset immediately, it
may have lost synchronisation. To re-synchronise,
press either button, 4 times in quick succession. If
handset still fails to respond, check batteries, refer to
Owner's handbook. If batteries are okay, it may be
necessary to use emergency key access, refer to
Owner's handbook.
NOTE: New handsets must be initialised
using TestBook.
PASSIVE COIL (96 MODELS)
Service repair no - 86.77.35
Remove
1.Remove steering column shroud.
See
STEERING, Repair, Steering column shroud
2.Release multiplug from harness clip and
disconnect.
3.Release passive coil from starter switch.
4.Remove bulb holder/starter switch shroud.
5.Remove coil.
Refit
6.Fit coil, ensuring switch illumination bulb harness
passes through large cut-out.
7.Secure coil with cable tie.
8.Position bulb holder/starter switch shroud and
locate bulb.
9.Locate bulb holder/starter switch shroud,
ensuring cut-out in shroud aligns with lug on
starter switch.
10.Connect multiplug and secure to clip.
11.Fit column shroud.

86ELECTRICAL
44
REPAIR BONNET SWITCH
Service repair no - 86.55.89
Remove
1.Remove 2 bolts securing sounder, move
sounder aside.
2.Locate and disconnect bonnet switch multiplug.
3.Release and remove switch.
Refit
4.Reverse removal procedure.ULTRASONIC SENSOR
Service repair no - 86.77.32
Remove1.Release sensor from switch panel.
2.Disconnect multiplug and remove sensor.
Refit
3.Reverse removal procedure.
ANTI-THEFT ALARM INDICATOR LIGHT (96
MODELS)
Service repair no - 86.45.61
See Instrument illumination and warning light
bulbs
ENGINE IMMOBILISATION WARNING LIGHT (96
MODELS)
Service repair no - 86.45.61
See Instrument illumination and warning light
bulbs

ELECTRICAL
45
REPAIR SOUNDER (96 MODELS)
Service repair no - 86.55.87
Remove
NOTE: Failure to follow steps 1 and 2 will
result in sounder being activated.
1.Turn starter switch 'ON' then 'OFF'.
2.WITHIN 15 SECONDS, depress release clip on
multiplug and detach from sounder.
3.Remove 2 securing bolts and remove sounder
complete with bracket.
Refit
4.Reverse removal procedure.
NOTE: If sounder is accidentally activated,
it can be silenced, provided it is
reconnected, by turning starter switch to
position II.SWITCH - ELECTRIC SEAT
Service repair no - 86.75.03
Remove
1.Release switch panel from centre console.
2.Disconnect 2 switch multiplugs
3.Remove switch panel.
Refit
4.Reverse removal procedure.

86ELECTRICAL
46
REPAIR STARTER MOTOR - 4.0 V8
Service repair no - 86.60.01
Remove
1.Disconnect battery negative lead.
2.Raise vehicle on ramp.
3.Remove heated oxygen sensor from RH front
exhaust pipe.
See EMISSION CONTROL,
Repair, Heated Oxygen Sensor (HO2S) - 4.0
V8
4.Mark front propeller shaft and drive flanges for
assembly reference.
5.Remove 4 nuts and bolts securing propeller
shaft flange.
NOTE: Raise 1 front road wheel and rotate
propeller shaft to gain access to all
fixings.
6.Tie propeller shaft aside.
7.Position starter motor heat shield above motor.
See Starter Motor Heat Shield - 4.0 V8
8.Disconnect Lucar from solenoid.
9.Remove nut securing feed wires to starter
solenoid and disconnect from terminal.

ELECTRICAL
47
REPAIR
10.From above, remove top bolt securing starter
motor and position earth lead aside.
NOTE: To assist removal, use 230 mm
extension bar positioned between engine
mounting bracket and exhaust manifold.
11.Remove bottom bolt securing starter motor.
12.Remove starter motor.Refit
13.Ensure mating faces are clean.
14.Locate starter motor in fitted position and fit
bottom bolt finger tight.
15.Fit top bolt. Tighten to
42 Nm.
16.Bottom bolt. Tighten to42 Nm.
17.Connect feed wires to solenoid terminal. Secure
with nut.
18.Connect Lucar to starter solenoid.
19.Manoeuvre heat shield down and forward to
position bracket against engine mounting.
Engage clip on solenoid.
20.Align bracket to hole using suitable tool and fit
retaining bolt.
21.Clean flange mating surfaces, locate propeller
shaft and align reference marks.
22.Fit bolts and NEW nyloc nuts. Tighten to
48 Nm.
NOTE: Fit bolts with head towards transfer
box and away from differential.
23.Lower vehicle.
24.Reconnect battery negative lead.

86ELECTRICAL
48
REPAIR STARTER MOTOR HEAT SHIELD - 4.0 V8
Service repair no - 86.60.12
Remove
1.Disconnect battery negative lead.
2.Raise vehicle on ramp.
3.Remove heated oxygen sensor from RH exhaust
front pipe.
See EMISSION CONTROL, Repair,
Heated Oxygen Sensor (HO2S) - 4.0 V8
4.Remove bolt securing heat shield to RH engine
mounting bracket.
5.Release heat shield clip from starter solenoid.
6.Manoeuvre heat shield rearwards and around
starter motor.
Refit
7.Reverse removal procedure.BULB - FRONT FOG LAMP
Service repair no - 86.40.94
Remove
1.Remove front fog lamp.
See fog lamp - front
2.Remove 2 Torx screws securing fog lamp to
bracket and collect 2 spacers.
3.Release fog lamp adjustment ball joint from
bracket and remove lamp.
4.Release lamp lens from shroud.
5.Disconnect 2 Lucars from bulb.
6.Release bulb retaining clip.
7.Remove bulb from lens.

ELECTRICAL
49
REPAIR Refit
8.Fit bulb to lens.
9.Secure bulb retaining clip.
10.Connect 2 Lucars to bulb.
11.Position lamp lens to shroud.
12.Position lamp to bracket and secure fog lamp
adjustment ball joint to bracket.
13.Position spacers, align lamp to bracket and
secure with Torx screws.
14.Fit front fog lamp.
See fog lamp - front; Refit
CLOCK
Service repair no - 88.15.07
Remove
1.Remove drinks tray.
See CHASSIS AND
BODY, Repair, drinks tray
2.Release 4 clock panel securing tags.
3.Release clock panel from louvre panel.
4.Disconnect 2 multiplugs from clock.
5.Remove clock.
Refit
6.Position clock.
7.Connect multiplugs to clock and secure clock to
louvre panel.
8.Fit drinks tray.
See CHASSIS AND BODY,
Repair, drinks tray; Refit
REAR SPEAKER
Service repair no - 88.15.12
Remove
1.Remove 4 screws securing speaker.
2.Release speaker and disconnect 2 Lucars.
3.Remove speaker.
Refit
4.Position speaker, connect Lucars and secure
with screws.

86ELECTRICAL
50
REPAIR DIGITAL DIESEL SHUT-OFF VALVE (DDS) - 97 MY
Service repair no - 86.77.00
Remove
1.Remove fuel injection pump.
See FUEL
SYSTEM, Repair, fuel injection pump and
timing
2.Drill into 2 break-off screws to a depth of
approximately 5 mm using a 3.2 mm drill.
CAUTION: Use a drill bushing to guide the
drill during the above.
3.Using an 'Easy-out' remove 2 valve retaining
screws and discard.
4.Release DDS valve from fuel shut-off solenoid.
5.Remove protective cap from fuel shut-off
solenoid electrical connection.
6.Remove fuel shut-off solenoid terminal nut and
remove DDS valve.
Refit
7.Position DDS terminal lead to fuel shut-off
solenoid and secure with nut tightened to
2Nm.
8.Position DDS valve to fuel shut-off solenoid .
9.Position clamping plate to DDS valve and tighten
shear bolts simultaneously until heads shear.
10.Fit fuel injection pump.
See FUEL SYSTEM,
Repair, fuel injection pump and timing; Refit
ANTENNA AMPLIFIER - 97 MY
Service repair no - 86.50.29
Remove
1.Remove RH alpine light trim casing.
See
CHASSIS AND BODY, Repair, alpine light
trim casing
2.Release amplifier to sixth light connector and
seal finisher.
3.Remove screw securing amplifier to body and
release from location.
4.Disconnect co-axial cable from amplifier.
5.Disconnect Lucar from amplifier.
6.Remove amplifier.
Refit
7.Fit amplifier, connect co-axial cable and Lucar to
amplifier.
8.Position amplifier to location and secure with
screw.
9.Secure amplifier lead through seal finisher and
connect to sixth light.
10.Fit RH alpine light trim casing.
See CHASSIS
AND BODY, Repair, alpine light trim casing;
Refit

ELECTRICAL
1
OVERHAUL DISTRIBUTOR-LUCAS 35DLM8
Overhaul
DISTRIBUTOR CAP
Service repair no - 86.35.10
1.Unclip and remove cap
2.Fit a new cap if faulty.
3.Clean cap and HT brush with a lint free cloth.
ROTOR ARM
Service repair no - 86.35.16
1.Pull rotor arm from shaft.
2.Fit a new rotor arm if faulty.
INSULATION COVER (FLASH SHIELD)
Service repair no - 86.35.40
1.Remove cover secured by three screws.
2.Fit a new cover if faulty.
VACUUM UNIT
Service repair no - 86.35.21
1.Remove two screws from vacuum unit securing
bracket. Disengage vacuum unit connecting rod
from pick-up base plate connecting peg.
Withdraw vacuum unit from distributor body.AMPLIFIER MODULE
Service repair no - 86.35.30
1.Remove two screws and withdraw module.
2.Remove gasket.
3.Remove two screws and cast heatsink.
WARNING: Amplifier module is a sealed
unit containing Beryllia. This substance is
extremely dangerous if handled. DO NOT
attempt to open or crush module.
PICK-UP AND BASE PLATE ASSEMBLY
Service repair no - 86.35.42
1.Use circlip pliers to remove circlip retaining
reluctor on rotor shaft.
2.Remove flat washer, and 'O' ring recessed in top
of reluctor.
3.Gently withdraw reluctor from shaft, taking care
not to damage teeth.
NOTE: Coupling ring fitted beneath
reluctor.
4.Remove three support pillars and cable
grommet. Lift out pick-up and base plate
assembly.
NOTE: Do not disturb two barrel nuts
securing pick-up module, otherwise air
gap will need re-adjustment.
5.Fit a new pick-up and base plate assembly if
module is known to be faulty, otherwise check
pick-up winding resistance (2k-5k ohm).
Reassemble
6.This is mainly a reversal of dismantling
procedure, noting following points:

86ELECTRICAL
2
OVERHAUL
LUBRICATION
Apply clean engine oil:
a. A spot into rotor spindle before fitting rotor
arm.
Apply Omnilube 2 (or equivalent) grease.
b. Auto advance mechanism.
c. Pick-up plate centre bearing.
d. Pre tilt spring and its rubbing area (pick-up
and base plate assembly).
e. Vacuum unit connecting peg (pick-up and
base plate assembly).
f. Connecting peg hole in vacuum unit
connecting rod.
Fitting pick-up and base plate assembly
1.Pick-up leads must be prevented from fouling
rotating reluctor. Both leads should be located in
plastic guide as illustrated. Check during
re-assembly.
Fitting reluctor
2.Slide reluctor as far as it will go on rotor shaft,
rotate reluctor until it engages with coupling ring
beneath pick-up base plate. Distributor shaft,
coupling ring and reluctor are 'keyed' and rotate
together. Fit 'O' ring, flat washer and retaining
circlip.Pick-up air gap adjustment
1.Air gap between pick-up limb and reluctor teeth
must be set within specified limits, using a
non-ferrous feeler gauge.
2.If adjustment is necessary, loosen two barrel
nuts to set the air gap.
See ENGINE TUNING
DATA, Information, Engine 3.9 V8i
NOTE: When original pick-up and base
plate assembly has been refitted, air gap
should be checked, and adjusted if
necessary.
When fitting a new assembly air gap will require
adjusting to within specified limits.
Amplifier module
1.Before fitting module, apply MS4 Silicone grease
or equivalent heat-conducting compound to
amplifier module backplate, seating face on
distributor body and both faces of heatsink
casting.