Principles of Operation

PRINCIPLES OF OPERATION

Perimeter - Anti-theft
The perimeter anti-theft system provides for vehicle security through an audible and visual notification if the vehicle exterior is invaded without the system being turned off. The system self-arms when the doors, liftgate, and hood are closed and the key is OFF. Any open door, hood, liftgate glass, or liftgate allows the system to arm except for the open entry point. The hood ajar switch, door ajar switches, liftgate glass ajar switch, and liftgate ajar switch cause these circuits to register as normally closed circuits. The smart junction box (SJB) monitors the status of the hood ajar, door ajar, liftgate glass, and liftgate ajar switches. If these circuits indicate an open entry point, the switch opens the circuit to the SJB, which energizes the horn and flasher relays causing the horn to sound and the parking lamps to flash. The SJB turns off the anti-theft system when it receives a command through the keyless entry keypad, remote keyless entry (RKE) transmitter, or anti-theft alarm inhibit switch.