DISCOVERY
T1 ETM
Vehicle Status Indication
Radio Frequency System
Vehicle status is indicated by up to three devices:
(a) Alarm Sounder (Z171), (b) hazard lights, (c)
Theft Alarm LED (B151). When the vehicle arms in
either mode, the hazard lights will flash three times
and the LED will flash rapidly for 10 seconds. LED
will then flash at a slower rate while vehicle is
armed. When the vehicle disarms, hazard lights will
flash once and LED will extinguish. If LED remains
lit, it indicates that the alarm has been triggered.
Turning on ignition or arming the alarm will
extinguish LED. The LED will give a long pulse
flash to indicate the Alarm Sensor (X213) being
activated.
The RF system uses four frequencies according to
market. If the coaxial aerial is not fitted system
performance will be impaired. Both ECU and
handset have a colour–coded label.
Frequency Colour Territory ECU/Handset:
418.0
MHz, Pink/pink: UK, Ireland
224.5 MHz, Yellow/yellow: France
MHz, Blue/blue: Europe (not France,
Switzerland, Italy, Denmark)
MHz, White/blue: Switzerland, Denmark
MHz, Green/green: Rest of World, Italy,
433.92
433.92
315.0
Australia
315.0
MHz, Orange/green: Gulf, Japan
Central Locking
Central Locking is controlled by the Theft Alarm
Unit (Z163) and may be operated by the key, sill
button(s) or handset. The system works on both
front doors on four door vehicles or driver’s door on
two door vehicles.
NOTE: The central door locking system will shut
down for a period after more than 15
consecutive operations.
Inertia Switch
An inertia switch is incorporated in the Theft Alarm
Unit (Z163). If ignition is on and the vehicle
receives an impact sufficient to activate the inertia
switch, the unit will signal to unlock central locking
actuators and flash hazard lights. Central locking
will remain disabled for 30 seconds. To reset, turn
ignition off and then on after the 30 second period
has elapsed.
Alarm Sensor (X213)
The sensor operates by emitting an air pressure
carrier wave and receiving the wave back. Any
disturbace within the vehicle which disturbs the
wave will be detected, triggering the alarm. When
the volumetric sensor is activated it monitors
movement within the vehicle for 15 seconds before
detecting and responding to intrusions. If the
sensor detects movement within the vehicle it
delays arming until a 15 seconds quiet period has
elapsed. If continuous movement is detected, the
alarm will not arm volumetrically.
2
E L E C T R I C A L T R O U B L E S H O O T I N G M A N U A L
| Categories | Land Rover, Land Rover Discovery |
|---|---|
| Tags | Land Rover |
| Model Year | 1995 |
| Download File |
|
| Document Type | Electrical Troubleshooting 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 |
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