1996 LAND ROVER DEFENDER key

74WHEELS AND TYRES
2
FAULT DIAGNOSIS FAULT - SYMPTOMS
Vibration through steering wheel
1.Check tyre pressures
See Repair, Tyre
Pressures
.
2.Check condition of tyres
See Tyre Wear Chart.
3.Check front wheel alignment
See STEERING,
Adjustment, Front Wheel Alignment
.
4.Check wheel balance
See Repair, Wheel
Balancing
.
NOTE: In the event that any apparent
vibration is not eliminated at this stage
See PROPELLER SHAFTS, Fault
diagnosis, Vibration Harshness
.
NOTE: In the event that any apparent
vibration is not eliminated at this stage, go
to steering Fault Diagnosis, Fault -
Symptom (Steering vibration, road wheel
shimmy/wobble)
See STEERING, Fault diagnosis,
Steering Faults
.
NOTE: Radial ply tyres have a flexible
sidewall, which produces a sidewall bulge
making the tyre appear under-inflated.
This is a normal condition for radial ply tyres. Do
not attempt to reduce this bulge by over-inflating
the tyre.
Key to illustration
1.Correct inflation.
2.Under-inflation.
3.Over-inflation.
4.Tread contact with road.

76CHASSIS AND BODY
8
DESCRIPTION AND OPERATION CHASSIS FRAME ALIGNMENT
With the vehicle assembled, a check for chassis
squareness can be made as follows:
1.Place the vehicle on a level floor.
2.Mark measuring points at approximately the
locations shown in LR4412M ensuring that the
marks are exactly opposite on each side of the
chassis frame.3.Hold a plumb line against each of the measuring
points in turn and mark the floor directly beneath
the plumb-bob.
4.Move the vehicle and measure diagonally
between the marks made on the floor, if the
chassis is square the diagonals between the
related measuring points should agree within
9,50 mm.
5.Chassis frame dimensional checks can be
made, with the vehicle upper structure removed,
referring to the applicable illustration and
associated key.

76CHASSIS AND BODY
16
REPAIR 7.To remove barrel from plastic retaining sleeve,
depess spring loaded button and withdraw
sleeve.
Refit
NOTE: If a new barrel is being fitted, check
that number on barrel coincides with
number on accompanying key.
8.Push plastic retaining sleeve over barrel until
spring loaded peg locks it into position.
9.Fit barrel and plastic sleeve assembly to locking
sleeve and insert into exterior handle reversing
instruction 6.
10.Assemble lock lever components as illustrated
and from inside of door panel, fit them to barrel
assembly with single screw.
11.Connect operating rod to lock lever and secure
with spring clip, reversing instruction 4.
12.Fit mounting panel
See Mounting panel - front
door
.DOOR STRIKER - ADJUST
Service repair no - 76.37.23 - front door
Service repair no - 76.37.24 - rear door, 110/130
Adjust
1.Loosen 2 Torq bolts securing striker to body.
2.Adjust alignment of striker vertically and
horizontally, lightly tighten bolts.
3.Close door, check for correct latching with door
lock and for centering on striker.
4.Add or remove packing shims as necessary
behind striker and fully tighten bolts.
5.Carry out further adjustment as necessary. If full
adjustment is not achieved carry out the
following:
6.Remove striker and nut plate.
7.Elongate striker bolt holes in 'B' or 'C' post in
direction required.
8.Refit striker and adjust as necessary.

76CHASSIS AND BODY
28
REPAIR TAIL DOOR TRIM CASING
Service repair no - 76.34.09
Remove
1.Unscrew 2 bolts and remove grab handle from
rear door.
2.Remove 2 screws and detach wiper motor cover.
3.Remove 7 screws securing trim casing to door.
4.Remove 2 screws and lift wiper motor harness
cover from harness support bracket.
5.Carefully release 8 clips securing trim casing to
door.
6.Remove trim casing and collect door lock cover.
Refit
7.Position door lock cover, fit trim casing and
secure with clips.
8.Fit harness cover and secure with two screws.
9.Secure door panel with retaining screws.
10.Position wiper motor cover and secure with 2
screws.
11.Position grab handle and secure with 2 bolts.TAIL DOOR LOCK
Service repair no - 76.37.16
Remove
1.Remove door casing
See Tail door trim
casing
.
2.Remove screws, washers and nut retainer plate
securing top of lock to door.
3.Remove nuts, washers and stud retainer plate
securing bottom of lock to door.
4.Withdraw lock assembly.
5.Remove door lock gasket.
6.Clean sealant from retainer plates.
7.Insert key into barrel.
8.Depress lock barrel plunger and withdraw barrel
from lock.
Refit
9.Fit new barrel into lock.
10.Apply sealant to lock retainer plates.
11.Fit lock to door with a new gasket.
12.Secure with retainer plates, screws, washers
and nuts.
13.Close door and check for correct latching with
striker. Adjust striker as necessary
See Tail
door striker - adjust
.
14.Fit door casing
See Tail door trim casing.

WIPERS AND WASHERS
1
OVERHAUL WIPER MOTOR
Service repair no - 84.15.18.
Dismantle
1.Remove wiper motor from vehicle
See Repair,
Wiper motor and drive rack.
2.Remove wiper motor gearbox cover.
3.Remove circlip and plain washer securing
connecting rod.
4.Withdraw connecting rod.
5.Withdraw flat washer.
6.Remove circlip and washer securing shaft and
gear.
7.Clean any burrs from gear shaft and withdraw
gear.
8.Withdraw dished washer.
9.Add alignment marks to yoke and gearbox for
reassembly.
10.Remove yoke securing bolts.11.Withdraw yoke and armature.
12.Remove brush gear assembly.
13.Remove limit switch.
Inspection and test
14.Check brushes for excessive wear, if they are
worn to 4,8 mm in length, fit a new brush gear
assembly.
15.Using a push type gauge, check that brush
spring pressure is 140 to 200 g when bottom of
brush is level with bottom of slot in brush box. Fit
a new brush gear assembly if springs are not
satisfactory.
16.Test armature for insulation and open- or
short-circuits. Use a 110 V 15 W test lamp. Fit a
new armature if faulty.
17.Examine gear wheel for damage or excessive
wear.
Key to wiper motor components
1.Flexible drive
2.Gearbox cover
3.Connecting-rod retaining washer and circlip
4.Connecting-rod
5.Flat washer
6.Gear shaft retaining washer and circlip
7.Drive gear8.Dished washer
9.Alignment marks - yoke to body
10.Yoke securing bolts
11.Armature and yoke
12.Brush gear assembly
13.Limit switch

86ELECTRICAL
2
DESCRIPTION AND OPERATION VEHICLE IMMOBILISATION AND ALARM SYSTEM
A sophisticated engine immobilisation and anti-theft
alarm system is offered on the Land Rover Defender
300 Tdi vehicle range, which incorporates the
following features:
Perimeter protection
This part of the alarm system protects side doors,
bonnet and rear door against unauthorised entry -
alarm sounding if any one of these apertures is
opened without alarm first being disarmed.
Interior protection
Also known as volumetric protection, this part of the
system protects space inside the vehicle. Once
armed, the alarm will sound if a door is opened, or if
movement is detected inside the vehicle.
Engine immobilisation
The engine is immobilised electronically whenever the
alarm system is armed. Even if the alarm has not
been armed, engine immobilisation will occur
automatically thirty seconds after the driver's door is
opened, or five minutes after the starter switch is
turned to position '0'.
ALARM SYSTEM COMPONENTS
Electronic control unit (ECU)
The ECU is the alarm system brain and controls all
vehicle immobilisation and alarm functions. It
responds to the inputs received, by supplying suitable
outputs to indicate status of the alarm system or
activating relevant warning devices. unit is located
under fascia behind instrument binnacle.
Handset and key
The handset is the primary source of control for the
alarm system i.e. it arms and disarms the alarm
components. The key can be used to override engine
immoblisation if the handset is lost or fails to operate,
seeEngine immobilisation override.The handset battery should last for approximately
three years dependent upon use. The following
symptoms will be noticed when the battery requires
replacement:
1.The handset will only work every other operation
while disarming.
2.The direction indicator lamps will not flash when
the alarm is disarmed.
For battery replacement procedure, seeHandset
Battery.
Passive coil
The passive coil is fitted on the starter switch and
activates a receiving coil in the handset, causing it to
automatically transmit a remobilisation signal to the
ECU.
Aerial
The aerial is integral within the alarm system harness
and supplies the ECU with the signal received from
handset.
Immobilisation spider
The immobilisation spider provides an interface
between ECU and immobilised areas of the vehicle.
This is installed in a sealed (safe) box inside the
vehicle battery box.
Digital diesel shut-off valve - 97 MY
When fitted, the digital diesel shut-off valve
immobilises the fuel injection pump by preventing
power reaching the fuel shut-off solenoid,
See
Immobilisation and alarm system circuit diagram -
with DDS
.

86ELECTRICAL
4
DESCRIPTION AND OPERATION REV: 05/99 ALARM SYSTEM COMPONENT LOCATION
COMPONENT LOCATION
1. Electronic control unit (ECU) Under dash, LH and RH drive
2. Anti-theft alarm indicator light Instrument panel
3. Engine immobilisation warning light Instrument panel
4. Immobilisation spider* Inside vehicle battery box
5. Passive coil Over starter switch barrel
6. Bonnet switch Engine compartment, LH and RH drive
7. Door switches
8. Ultrasonic sensor Varies according to vehicle type
9. Handset and key
10. Alarm sounder (without battery back-up) LH inner front wing
11. Alarm sounder (with battery back-up) LH inner front wing
* Replaced in some markets by a digital diesel shut-off valve (DDS), secured directly to fuel shut-off solenoid on
injection pump.

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.