Content Theft Deterrent (CTD)

The CTD system is an internal function of the Body Control Module (BCM) which utilizes class 2 serial data and various switch input information to perform CTD functions. When the BCM detects an unauthorized entry, it activates the horns and exterior lamps. The BCM has five basic modes (disarmed, standby, delayed, armed, and alarm) for operating the CTD system. The different modes are described below.
1. When the CTD system is in the disarmed mode, ignition is OFF and any door is open, the BCM commands the instrument cluster to flash the SECURITY indicator via the class 2 serial data circuit. The BCM has the CTD system in the disarmed mode until the following conditions are detected:
^ Ignition key turned to the OFF position.
^ Any door open.
^ Doors locked by either the power door lock switch or the LOCK button on the transmitter (if equipped).
2. The BCM enters the standby mode when the above conditions are detected. In standby mode, the BCM commands the SECURITY indicator to illuminate ON steady. If all the doors are closed and the LOCK button on the transmitter (if equipped) is used, the BCM enters the delayed mode.
3. When the last door is closed, the BCM remains in the delayed mode for 30 seconds. In delayed mode the BCM commands the SECURITY indicator to illuminate ON steady.
4. After 30 seconds, the BCM enters the armed mode. In armed mode, the BCM commands the SECURITY indicator OFF. Any forced entry activates the alarm mode.
5. When the BCM detects a forced entry, the BCM enters the alarm mode. The BCM activates exterior lamps for 2 minutes and the horns for 30 seconds. This is followed by a three minute time-out of the horns, with the horns no longer active. If no new intrusions are detected during the time-out, the horns remain inactive. The system must be disarmed or the intrusion condition removed after the time-out for the system to exit alarm mode.