LR3/Disco 3
An alarm indicator.
A BBUS (market dependant).
A volumetric sensor (market dependant).
The anti-theft alarm system also uses:
The CJB.
The hood, door and tailgate ajar switches. For additional information, refer to
Handles, Locks, Latches and Entry
Systems
(501-14 Handles, Locks, Latches and Entry Systems)
The vehicle horns. For additional information, refer to
Horn
(413-06 Horn)
ALARM INDICATOR
The alarm indicator is a red Light Emitting Diode (LED) installed in the instrument cluster to provide a visual indication of
the anti-theft alarm system status. Operation of the alarm indicator is controlled by the CJB, which varies the flash rate to
indicate the anti-theft alarm system status.
Anti-theft Alarm System Status Indications
BBUS (WHERE FITTED)
Status
Description
Alarm Indicator
0 - Disarmed
When system disarmed. Also first 10 seconds after being armed
with a panel open.
Off.
1 - Armed
Entered 10 seconds after arming.
10 milliseconds flash every 2
seconds.
2 - Perimeter
Arming
All panels closed. Indication delayed for 2.5 seconds to allow time
to process double locking commands.
Two 10 milliseconds flashes every
2 seconds, for 10 seconds.
3 - Volumetric
Arming
All panels closed and volumetric sensor armed. Indication delayed
for 2.5 seconds to allow time to process double locking
commands.
Three 10 milliseconds flashes
every 2 seconds, for 10 seconds.
