lock LAND ROVER DEFENDER 1996 Workshop Manual

82AIR CONDITIONING
14
REPAIR Refit
19.Coat unions, threads and new 'O' rings with
refrigerant oil prior to reassembly.
20.Position heater/cooler unit in engine
compartment and locate with air duct seal.
21.Secure unit top and bottom mounting brackets to
bulkhead and support bracket to front of unit
casing. Fully tighten fixing bolts when unit is
correctly positioned.
22.If applicable, fit blower motor resistor block to
vehicle wing.
23.Connect blower motor wiring plugs.
24.Fit footwell insulation and carpet.
25.Fit control cable to evaporator flap operating rod
using new clip. Secure outer cable.
26.Connect water valve vacuum switch pipe and
thermostat leads.
27.Fit air control flap solenoid to side of
heater/cooler unit.
28.Reconnect heater matrix hoses.
29.Connect high pressure pipe to evaporator.
30.Connect low pressure pipe and fit insulation
cover.
31.Evacuate and recharge air conditioning system
See Adjustment, Refrigerant recovery,
recycling, recharging.
32.Reconnect battery.

82AIR CONDITIONING
18
REPAIR RESISTOR, BLOWER MOTOR - LH DRIVE
Service repair no - 82.20.26
Remove
1.Remove multi-plug from resistor.
2.Remove blower motor relay from connecting
block to gain access to fixing screw.
3.Remove screw and release relay connector
block. Retain relay in connector block.
4.Remove screw and detach air conditioning 30
amp fuse bracket from resistor.
5.Lift resistor unit from top cover.
Refit
6.Locate resistor unit in top cover.
7.Fit fuse bracket.
8.Fit blower motor relay connector block and relay.
9.Fit resistor multi-plug.RESISTOR, BLOWER MOTOR - RH DRIVE
Service repair no - 82.20.26
Remove
1.Remove multi-plugs from resistor.
2.Remove 2 screws securing resistor to wing
mounted block.
3.Withdraw resistor unit.
Refit
4.Secure resistor to mounting block.
5.Fit resistor multi-plugs.

ELECTRICAL
5
DESCRIPTION AND OPERATION REV: 05/99 ALARM SYSTEM OPERATION
Arming alarm
To arm the alarm, aim handset at vehicle and press
the RH button (Padlock symbol). Provided all doors
and or apertures are closed, the direction indicator
lamps will flash three times to confirm that the alarm is
armed. All security features previously described will
be active.
Once armed, the alarm will sound if a door or the
bonnet is opened, or if movement is detected inside
the vehicle.
Disarming alarm
Within range of the vehicle, briefly press the LH
(Plain) button on the handset; the direction indicator
lamps will flash once to indicate that the alarm has
been disarmed and the engine re-mobilised.
NOTE: In some territories, the interior
lamps will illuminate when the alarm is
disarmed.
If the direction indicators fail to flash when the
alarm is armed:
This indicates that a door or the bonnet is not fully
closed, in which case the alarm will be partially armed
and engine immobilised, but interior protection will not
be active.
Once the open door or bonnet is closed, the direction
indicators will flash three times and the alarm will fully
arm as described previously.
If the alarm sounds:
The vehicle horn and alarm sounder will operate
continuously for 30 seconds when the alarm is
triggered. The horn and alarm sounder can be
triggered up to three times.
To silence the alarm, press either handset button. If
the handset is inoperative, the alarm can only be
disarmed by entering the emergency key access
code, seeEngine immobilisation override.Anti-theft alarm indicator light
A RED indicator light on the instrument panel
indicates the status of the alarm system. When the
alarm is armed successfully, the light flashes rapidly.
After 10 seconds, the light adjusts to a slower
frequency and continues flashing as an anti-theft
deterrent.
If the light fails to illuminate during the rapid flash
phase, this indicates a 'mislock' (door or the bonnet
not fully closed or key in starter switch). If this occurs,
the indicator light will still flash at slower frequency as
an anti-theft deterrent.
The indicator light will illuminate continuously under
the following conditions:
1.Alarm system armed and immobilised with
ignition 'on' or driver's door open.
2.Engine immobilised with ignition 'on' or driver's
door open.
Interior protection
Interior protection is activated automatically when the
alarm system is armed; twin sensors inside the
vehicle monitor interior space and will activate the
alarm if an intrusion is detected.
However, if passengers or animals are to be left inside
the vehicle, or if a window or sunroof is to be left
open, the alarm must be armed with the interior
protection DISABLED as follows:
To disable interior protection:
1.Open the driver's door.
2.Use the handset to arm the alarm in normal way.
3.Close the driver's door (the direction indicator
lamps will flash three times and the anti-theft
indicator light commences flashing rapidly). The
alarm system is now armed with the interior
protection disabled.
NOTE: Interior protection will not operate
until 15 seconds after the alarm is set.

86ELECTRICAL
12
DESCRIPTION AND OPERATION VEHICLE ALARM SYSTEM BUILT-IN TEST
NOTE: The handset should be detached
from the key to allow perimetric testing of
the alarm system. The system will
automatically switch to volumetric testing if the
handset is in close proximity to the starter switch.
The built-in test procedure can be accessed providing
the following conditions exist:
Alarm disarmed.
Ignition 'off'.
Doors unlocked.
Bonnet closed.
With assistance, the test mode can be entered by
completing the following instructions within 5 seconds:
1.Open bonnet.
2.Turn starter switch 'on'.
3.Open driver's door (far enough to activate door
switch).
4.Turn starter switch 'off'.
5.Turn starter switch 'on'.
If the test mode has been correctly accessed, the
alarm sounder/horn will operate briefly and the
anti-theft alarm indicator and direction indicator lamps
will flash.
Perimetric tests
The anti-theft alarm indicator light and direction
indicator lamps will flash when:
1.Door switches are activated.
2.The bonnet is opened.
3.Key switches are activated.Volumetric tests
Press the LH (unlock) button or move the handset
close to the starter switch to disable perimetric testing
and enable volumetric testing. If movement is
detected within the vehicle by the ultrasonic sensor
the anti-theft alarm indicator and direction indicator
lamps will illuminate.
NOTE: Exit the anti-theft alarm built-in test
by turning the starter switch to the 'off'
position.
If the previously described conditions are not achieved
during the built-in test procedure, this would indicate a
fault in the alarm system. Before undertaking detailed
fault diagnosis procedures, first make visual checks of
components such as a faulty door switch or blown
alarm system fuse.

ELECTRICAL
1
REPAIR ELECTRICAL PRECAUTIONS
The following guidelines are intended to ensure the
safety of the operator whilst preventing damage to
electrical and electronic components fitted to the
vehicle.
Polarity
Never reverse connect the vehicle battery and always
observe the correct polarity when connecting test
equipment.
High voltage circuits
WARNING: Before commencing work on
an ignition system, all high tension
terminals, adaptors and diagnostic
equipment for testing should be inspected to
ensure that they are adequately insulated and
shielded to prevent accidental personal contacts
and minimize the risk of shock. Wearers of
surgically implanted pacemaker devices should
not be in close proximity to ignition circuits or
diagnostic equipment.
Whenever disconnecting live high tension circuits
always use insulated pliers and never allow the open
end of a high tension lead to come into contact with
other components particularly electronic control units.
Exercise caution when measuring the voltage on the
coil terminals while the engine is running, since, high
voltage spikes can occur on these terminals.
Connectors and harness
Always ensure that these items are dry and oil free
before disconnecting and connecting test equipment.
Never force connectors apart either by using tools or
by pulling on the wiring harness. Always ensure
locking tabs are disengaged before removal and note
orientation to enable correct reconnection. Ensure that
any protective covers and substances are replaced if
disturbed. Having confirmed a component to be faulty
switch-off the ignition and disconnect the battery.
Remove the component and support the disconnected
harness. When replacing the component keep oily
hands away from electrical connection areas and
push connectors home until any locking tabs fully
engage.Battery disconnecting
Before disconnecting the battery, switch off all
electrical equipment.
Battery charging
Recharge the battery out of the vehicle and keep the
top well ventilated. While being charged or
discharged, and for approximately 15 minutes
afterwards, batteries emit hydrogen gas which is
flammable. Always ensure any battery charging area
is well ventilated and that every precaution is taken to
avoid naked flames and sparks.
GENERAL PRECAUTIONS
Switch-off ignition prior to making any connection or
disconnection in the system as electrical surge
caused by disconnecting 'live' connections can
damage electronic components.
Ensure hands and work surfaces are clean and free of
grease, swarf, etc. as grease collects dirt which can
cause tracking or high-resistance contacts.
When handling printed circuit boards, treat them as
you would a disc - hold by the edges only.
Prior to commencing a test, and periodically during a
test, touch a good earth, for instance, a cigar lighter
socket, to discharge body static as some electronic
components are vulnerable to static electricity.

86ELECTRICAL
4
REPAIR HANDSET BATTERY
Service repair no - 86.77.13
Remove
1.Unlock vehicle and disarm alarm system.
2.Turn starter switch to position 'II'.
3.Turn starter switch back to position '0' and
remove key.
4.Carefully prise handset apart, starting from
keyring end, using a coin or small screwdriver.
5.Slide battery out from retaining clip.
6.Press and hold one of the handset buttons for at
least five seconds to drain any residual power
from handset.
NOTE: The engine will immobilise five
minutes after key is removed from starter
switch.Refit
7.Fit new battery into handset retaining clip with
positive side uppermost. Finger marks will
adversely affect battery life; if possible, avoid
touching flat surfaces of battery and wipe clean
before fitting.
8.Reassemble two halves of handset.
9.Press RH (Padlock) button at least four times
within range of vehicle to resynchronise handset.
10.Check operation of alarm system.
WARNING: The handset contains delicate
electronic circuits and must be protected
from impact and water damage, high
temperatures and humidity, direct sunlight and
effects of solvents, waxes and abrasive cleaners.
NOTE: New handsets must be be
initialised using TestBook.

ELECTRICAL
13
REPAIR HEADLAMP
Service repair no - 86.40.02
Remove
1.Remove screws retaining side and direction
indicator lamps.
2.Withdraw lamp units and disconnect plugs.
3.Remove 2 screws and withdraw headlamp
finisher.
4.Remove 2 headlamp retaining screws.
5.Rotate headlamp clockwise, disengage from
body, and lift out headlamp.
6.Disconnect multi-plug to release headlamp. On
vehicles fitted with headlamp levelling unit, also
release unit harness plug
See Headlamp
levelling unit.
7.Remove rubber cover.
8.Release spring clip and withdraw headlamp
bulb.
NOTE: Do not touch bulb glass with
fingers. If necessary, clean bulb with
methylated spirits.Refit
9.Fit bulb to headlamp and retain with spring clip.
10.Fit rubber cover and reconnect multi-plug. If
applicable, fit headlamp levelling unit plug
See
Headlamp levelling unit.
11.Locate headlamp in body and rotate
anti-clockwise to engage.
12.Fit headlamp retaining screws.
13.Fit headlamp finisher, side and direction
indicator lamps.
14.Check main beam alignment
See Headlamp
beam alignment.

ELECTRICAL
19
REPAIR INSTRUMENT ILLUMINATION - BULB RENEWAL
Service repair no - 86.45.49 - Speedometer
Service repair no - 86.45.51 - Temperature gauge
Service repair no - 86.45.52 - Fuel gauge
Remove
1.Disconnect battery.
2.Remove 4 screws retaining instrument panel.
3.Ease panel forward and disconnect
speedometer cable to improve access to
illumination bulbs.
4.Twist bulb holder and pull from socket.
5.Pull bulb from holder.
Refit
6.Fit new bulb and refit holder.
7.Reconnect speedometer cable and fit instrument
panel.
8.Reconnect battery.STARTER SWITCH
Service repair no - 86.65.03
Remove
1.Remove instrument panel
See INSTRUMENTS,
Repair, Instrument panel.
2.Remove steering column nacelleSee
STEERING, Repair, Steering column nacelle.
3.Note position of harness leads on back of starter
switch and disconnect lukars. If fitted, remove
alarm system passive coil from switch
See
Passive coil.
4.Remove single screw and withdraw starter
switch from steering column lock.
Refit
5.Fit new switch in steering column lock.
6.Connect harness leads to starter switch.
7.If applicable, fit alarm system passive coil
See
Passive coil.
8.Fit steering column nacelleSee STEERING,
Repair, Steering column nacelle.
9.Fit instrument panelSee INSTRUMENTS,
Repair, Instrument panel.

ELECTRICAL
21
REPAIR MAIN LIGHT SWITCH
Service repair no - 86.65.10
Remove
1.Remove steering column nacelle
See
STEERING, Repair, Steering column nacelle.
2.Disconnect main light switch multi-plug from
main harness.
3.Slacken locknut and release light switch from
slot in mounting bracket.
Refit
4.Fit light switch in mounting bracket.
5.Reconnect switch multi-plug.
6.Fit steering column nacelle
See STEERING,
Repair, Steering column nacelle.
HEATED REAR SCREEN, REAR FOG LAMP AND
HAZARD WARNING SWITCHES
Service repair no - 86.65.36 - Heated rear screen
Service repair no - 86.65.65 - Rear fog lamp
Service repair no - 86.65.50 - Hazard warning
Remove
1.Remove 2 screws and withdraw switch panel
from lower fascia.
2.Disconnect multi-plug from rear of switch.
3.On hazard warning switch only, remove 2
separate leads.
4.Press in spring retainers and withdraw switch
from switch panel.
Refit
5.Fit new switch into switch panel.
6.Reconnect switch multi-plug, and leads if
applicable.
7.Fit switch panel to lower fascia.

86ELECTRICAL
22
REPAIR CIGAR LIGHTER
Service repair no - 86.65.60
Remove
1.Remove 2 screws and withdraw switch panel
from lower fascia.
2.Disconnect electrical leads from switch housing,
including illumination bulb.
3.Release 2 retaining tags and remove bulb holder
from switch housing.
4.Remove cigar lighter from switch housing.
5.Press in retaining tags and withdraw housing
from switch panel.
Refit
6.Fit housing to switch panel.
7.Fit bulb holder to switch housing.
8.Connect electrical leads and illumination bulb.
9.Insert cigar lighter into switch housing.
10.Fit switch panel to lower fascia.REAR SCREEN WIPER/WASHER SWITCH
Service repair no - 84.35.34
Remove1.Remove 2 screws and withdraw switch panel
from lower fascia.
2.Disconnect electrical leads from rear screen
wiper/washer switch.
3.Insert a small screwdriver in base of switch
knob, press in retaining lug, and remove knob
from switch spindle.
4.Unscrew locking ring, with wavy washer, and
withdraw wiper/washer switch from panel.
Refit
5.Fit switch to switch panel.
6.Press in retaining lug and fit knob onto switch
spindle.
7.Connect electrical leads to switch.
8.Fit switch panel.