Principles of Operation (How Does It Work?)
Anti-Theft Perimeter Protection FeatureThe anti-theft perimeter protection feature is controlled by the Front Electronic Module (FEM), the Rear Electronic Module (REM), and the driver door module. This feature is configurable to the FEM and REM. The alarm can be armed using the remote transmitter to the DDM module which sends a message via the Standard Corporate Protocol communication network to the FEM, or by using the driver door lock switch. The FEM and REM will then monitor all features which will activate the alarm. These features are:
^ all door ajar switches
^ hood and luggage compartment lid ajar switches
^ radio and ignition switch, anti-theft switches
Additionally, a single security hardwire from the FEM to the REM is monitored for an open.
If any of the above features receive any activation once the alarm has been armed, the alarm will activate the visual and audible alerts.