Anti-Theft - Active - Anti-Theft - Active - Overview
Description and Operation
Overview Published: 11-May-2011
The active anti-theft system is available with three different levels of vehicle protection depending on market specification:
Hinged panel sensing
Hinged panel and intrusion sensing
Hinged panel, intrusion and inclination sensing.
The CJB (central junction box) automatically arms and disarms the active anti-theft system when it functions the central
locking system.
Refer to: Handles, Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Description and Operation).
Depending on market specification two modes of protection are used: perimeter mode and volumetric mode.
Perimeter mode
Perimeter mode, monitors the security of the hinged panels, which include:
all doors,
luggage compartment lid, and
engine compartment lid.
When perimeter mode is active, the CJB monitors the panel ajar switches in the latch mechanisms of the hinged panels.
Volumetric mode
In volumetric mode the CJB monitors the interior of the vehicle for movement using an ultrasonic sound wave sensor.
If the battery backed sounder incorporates an inclination sensor the vehicle will also be monitored for unauthorised tilting; for
example towing or jacking.
