86
ELECTRICAL
DETECTION COMPONENTS
Switches
ANTI-THEFT ALARM OPERATION (96 MODELS)
Full arming and immobilisation
Perimetric protection for the vehicle is provided by
ECU inputs connected to the following:
Locking the vehicle using the handset immobilises the
engine and initializes both volumetric and perimetric
protection, providing:
Key switches (including starter)
Sill buttons
Bonnet switch
1. After a lock signal has been received, a period of
15 seconds has elapsed during which no
movement is detected inside the vehicle;
Door switches
2.
No door or bonnet is open.
Ultrasonic sensor
NOTE: If either of the above conditions are
not satisfied, the alarm will only be
partially armed. This is a mislock condition
which will be made apparent by a delay of 10
seconds before the anti-theft alarm indicator
begins to flash.
The ultrasonic sensor is located on the interior light
switch panel and triggers the alarm if movement is
detected.
WARNING INDICATORS
Battery backed-up sounder
Disarming the alarm
The battery backed-up sounder is located in the
engine compartment and provides an audible warning
whenever the alarm is triggered.
NOTE: ALWAYS disarm the alarm using
the handset.
Unlocking with the key will not disarm the alarm or
mobilise the vehicle. If the handset fails to unlock the
vehicle See Repair, Handset.
NOTE: Disconnecting the vehicle battery
will result in the alarm sounding if the
correct procedure has not been followed.
See Repair, Battery.
Partial arming and immobilisation
Engine immobilisation warning light (EIWL)
The alarm will be partially armed and the engine
immobilised if the vehicle is locked with the handset or
key, if:
The engine immobilisation warning light is located in
the instrument pack and provides a visual indication
that the engine is immobilised.
1. After a lock signal has been received, a period of
15
seconds has elapsed during which movement
Anti-theft alarm indicator light
is detected inside the vehicle;
A door or bonnet is open.
2.
The anti-theft alarm indicator light is located in the
instrument pack and provides a visual indication of the
alarm status.
NOTE: This is a mislock condition which
will be made apparent by a delay of 10
seconds before the anti-theft alarm
Inertia switch and central door locking
indicator begins to flash. Subsequent closure of
the offending aperture will cause the alarm to
attempt full arming as previously described.
As a safety feature, the alarm system is designed to
recognise the inertia switch and via the ECU, unlock
the doors in the event of a collision.
Immobilisation
NOTE: This feature only applies when the
starter switch is in the on position.
The vehicle will be automatically immobilised
whenever any of the following conditions occur:
1.
2.
3.
The vehicle is locked using the handset.
The vehicle is locked using the key.
Thirty seconds after the starter switch has been
turned off AND the driver’s door opened.
Five minutes after the starter switch is turned off
or the alarm disarmed.
4.
8
DESCRIPTION AND OPERATION
| Categories | Land Rover Discovery, Range Rover |
|---|---|
| Tags | Land Rover |
| Model Year | 1995 |
| Download File |
|
| Document Type | Workshop Manual |
| Language | English |
| Product Name | Discovery |
| Product Brand | Land Rover |
| Document File Type | |
| Publisher | landrover.com |
| Wikipedia's Page | http://en.wikipedia.org/wiki/Land_Rover |
| Copyright | Attribution Non-commercial |
(0 votes, average: 0 out of 5)