The CTD system (when armed) is designed to deter vehicle content theft by pulsing the horns and exterior lamps for approximately 30 seconds when an unauthorized vehicle entry is detected. However, the CTD system does not affect engine starting.

An unauthorized entry can be any of the following with the CTD system armed:

The components of the system are:

Use the following procedure in order to arm the system:

1. Place the shift lever in P (park) if equipped with automatic transmission.
2. Turn OFF the ignition.
3. Open any door.

Important: The system is not armed if the doors are locked manually, the power door lock switch or remote keyless entry transmitter must be used to arm the CTD system.

4. Lock the doors with the power door lock switch or the LOCK button on the transmitter. The system is in standby mode and will not start the arming timer until all doors are closed.
5. The system will arm approximately 30 seconds from the time that the last door is closed. This delay is shown by the theft LED indicator ON STEADY. When the indicator transitions to OFF, the system is armed. After the theft LED indicator transitions to OFF, the theft LED will begin to flash slowly.

Locking the vehicle may be accomplished without arming the CTD system. Use of the manual door locks or using the key to lock the doors will lock the vehicle but will not arm the CTD system.

If system arming has been requested by the power door lock switch or the keyless entry transmitter, it must be disarmed.

Important: Using the power door unlock switch or manually unlocking the doors does not disable the CTD arm mode. Also, disconnecting the battery or pulling fuses does not disable the arm mode, since the BCM stores the CTD mode status in memory.

Unlocking the door or the rear compartment lift window panel with the use of a key will not disarm the system. The BCM is factory set with a drivers door delay. The drivers door delay gives the driver 8 seconds to turn the ignition key ON after the drivers door is unlocked with a key. The drivers door delay can be set for no delay time if the customer prefers disarming the alarm with the transmitter. If the drivers door delay is set for no delay time, any entry without the transmitter will activate the alarm.

The following is a description of each component used in the CTD system:

The keyless entry transmitter is the primary device to disarm the theft deterrent system. Pressing the lock button arms the system. Pressing the unlock button disarms the system. The remote transmitter also has a panic button. Press this button to sound the car alarm, press it again to turn the alarm off.

The CTD system uses the door and hatch ajar switches in the door lock assemblies as one method to activate the alarm. The body control module (BCM) monitors all door ajar switches via a discrete input from each door ajar switch. If the BCM receives a ground signal from a door ajar switch when the CTD system is armed, the BCM activates the alarm.

The CTD system is an internal function of the Body Control Module (BCM) which utilizes 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. The BCM has the CTD system in a 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.

2. The BCM enters the standby mode when the above conditions are detected. In standby mode, the BCM commands the theft LED to flash quickly. If all the doors are closed and the LOCK button on the transmitter is used, the BCM enters the armed mode.
3. When the doors are locked and the last door is closed, the BCM enters the delayed mode for 30 seconds. In delayed mode the BCM commands the theft LED to illuminate ON steady.
4. After 30 seconds, the BCM enters the armed mode. In armed mode, the BCM commands the theft LED to flash slowly. Any forced entry activates the alarm mode.
5. When the BCM detects a forced entry, the BCM enters the alarm mode. The BCM activates the horns and exterior lamps for 30 seconds. This is followed by a 3 minute time-out with the horn no longer active. If no new intrusions are detected after the time-out, the horn is not active. The system must be disarmed or the intrusion condition removed after the time-out for the system to exit alarm mode.

The shock sensor is located near the spare tire in the rear of the vehicle. Its sensitivity has been set to comply with various local regulations requiring vehicle contact to set off the alarm. It can be adjusted if more or less sensitivity is desired. If sensitivity is increased too much, it may give false alarms caused by gusts of wind or other natural events that may shake the vehicle. To adjust, remove the label covering the adjustment knob and adjust as desired. Turn clockwise to increase sensitivity. Turn counterclockwise to decrease sensitivity. The red lamp on the shock sensor illuminates at shock levels that would cause the full (2 minute) alarm to sound. Different levels of shock are required on the various body panels and windows to activate the sensor, depending on the material (plastic, steel or glass) and distance from the shock sensor. Two levels of alarms are available through the shock sensor.

When the BCM senses an unauthorized entry into the passenger compartment, the theft deterrent relay is activated in order to pulse the exterior lamps.

The power door lock switches are used to either arm or disarm the CTD system. Pressing the lock position will cause the CTD to arm after all doors are closed and the 30 second delay period has elapsed. Pressing the unlock position will disarm the CTD system only in standby, or delayed mode.

The CTD system can be armed with the windows or sunroof open.

The BCM monitors the following inputs:

Outputs

The BCM controls the following :