General Information

When armed, the CTD system is designed to deter vehicle theft. The system deters theft by pulsing the horns and the exterior lights when the system detects an unauthorized vehicle entry. An unauthorized entry may be any one of the following cases:
^ Forced entry into the rear compartment
^ When any door is opened.

The remote function actuator (RFA) module controls all of the alarm functions. When the RFA detects an unauthorized entry, the RFA applies ground to the horn relay and to the lamp control module (LCM) once per second. Ground is applied for approximately 3 minutes, or until the RFA receives a valid input to disarm. The RFA has the following 5 basic modes:
^ Disarmed mode
The CTD is disarmed until the RFA detects all of the following conditions:
^ The ignition switch is turned to the lock position.
^ Any door is open.
^ The doors are locked by either the power door lock switch or the keyless entry transmitter (key fob). If all of the doors are closed and the key fob is used in order to lock the doors, the RFA enters the delayed mode.
^ Standby mode
The CTD is in standby when the RFA detects the above conditions. The RFA grounds CKT 264 (DK GRN) once per second. This action flashes the SECURITY indicator. When the RFA detects that all of the doors are closed, the system enters delayed mode.
^ Delayed mode
The CTD system is in delay mode for 30 seconds. The RFA grounds CKT 264 (DK GRN) continuously. This action illuminates the SECURITY indicator. After 30 seconds, the system enters armed mode.
^ Armed mode
When the CTD system is armed, the system monitors all of the inputs for an unauthorized forced entry. The RFA stops grounding CKT 264 (DK GRN). This action turns the SECURITY indicator off. If the RFA detects a forced entry, the system enters alarm mode.
^ Alarm mode
The CTD system detects a forced entry while in armed mode. The RFA grounds the horn relay (CKT 28, BLK/WHT) and the exterior lights control enable input (CKT 624, BLK/WHT) to the LCM. The RFA grounds once per second for approximately 3 minutes, or until the RFA receives a valid input to disarm. After 3 minutes, the CTD returns to the armed mode.

If the RFA receives a door unlock request during the arming sequence, the CTD system does not enter the armed mode. The RFA stops grounding CKT 264 (DK GRN). The SECURITY indicator turns oft. At this point, in order to enter the armed mode, you must repeat the arming sequence. The CTD system can enter the armed mode with the windows open.