Defender 300Tdi (1996+). Manual - part 103

ELECTRICAL

DESCRIPTION AND OPERATION

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, see Engine 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.

ELECTRICAL

DESCRIPTION AND OPERATION

ENGINE IMMOBILISATION

Engine immobilisation is an important aspect of the
vehicle’s security system, and occurs automatically
whenever the alarm system is armed.

The system also includes a feature known as ’passive
immobilisation’, which is designed to safeguard
thevehicle from theft should the driver forget to arm
the alarm.

Passive immobilisation occurs automatically as
follows:

Thirty seconds after the starter switch has been
turned off and the driver’s door opened.

Five minutes after thestarter switch is turned off or
the alarm system is disarmed.

If the engine has immobilised passively,
re-mobilisation will occur when the starter switch is
turned to position ’II’, provided the handset is on the
same ring as key and in close proximity to the switch.

ALWAYS keep the handset on the same ring as the
key.

NEVER attach both handsets to the same key ring.

Any attempt to start the engine while it is immobilised
will cause the engine immobilisation warning light to
flash.

Engine immobilisation override

If the handset is lost or fails to operate, the engine
immobilisation can be overridden by using the starter
key to enter the four digit emergency access code.
The procedure for entering the code is described after
the following note:

NOTE: If the handset is lost or inoperative,
it is impossible to disarm the alarm. As
soon as the door is opened, the alarm will

sound (continuously for up to three 30 second
periods), and continue while the code is being
entered.

1. With the driver’s door closed, insert the key into

the starter switch.

2. Turn the switch to position ’II’ the required

number of times to enter first digit of code (if first
digit is 4, turn key to position ’II’ and then back to
’0’ four times.

3. Open the driver’s door (to enter first digit) and

then close the door again.

4. Turn the starter switch to position ’II’ and back to

’0’ the required number of times to enter
SECOND digit of code.

5. Open the driver’s door (to enter second digit)

and then close the door again.

6. Turn the starter switch to position ’II’ and back to

’0’ the required number of times to enter THIRD
digit of code.

7. Open the driver’s door (to enter third digit) and

then close door again.

8. Turn the starter switch to position ’II’ and back to

’0’ the required number of times to enter
FOURTH digit of code.

9. Finally, open and close the driver’s door. If the

code has been entered correctly, the anti-theft
indicator light will extinguish, the engine can be
started and the alarm will disarm.

If an incorrect code has been entered:

If the code is entered incorrectly, the anti-theft
indicator light will continue to illuminate and the
engine will fail to start. Before entering the code again,
turn the starter switch to position ’II’, hold in this
position for 5 seconds and then switch off.

After three failed attempts, the security system
invokes a delay period of thirty minutes during which
the system will not accept any further codes.

ELECTRICAL

DESCRIPTION AND OPERATION

ALARM SYSTEM FUSES

When the vehicle immobilisation and alarm system is
fitted, three fuses are used to protect the circuit:

Alarm system 15 amp fuse, main harness, located
behind instrument binnacle.

Alarm sounder 20 amp fuse No.10, located in main
fuse box.

Alarm system 5 amp fuse No.20, located in main
fuse box.

The main fuse box is positioned in the centre of the
fascia, in front of the main gear lever. A label in the
fuse box cover shows the circuits protected, the fuse
rating and their locations. They are also listed below.

MAIN FUSE BOX

Fuse No.

Value (amps)

Electrical circuit

Hazard warning lights

Interior lamp, horn

Wipers & washers - rear

Wipers & washers - front

Heater

7.5

Rear fog guard lamps

Radio/cassette player

Heated rear window

Cigar lighter

Alarm sounder

7.5

Headlamp - RH, dipped beam

7.5

Headlamp - LH, dipped beam

7.5

Headlamp - RH, main beam

7.5

Headlamp - LH, main beam

Side lamps - LH

Side lamps - RH

Stop & reverse lamps

Air conditioning

Alarm system

ELECTRICAL

DESCRIPTION AND OPERATION

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