Intrusion Sensing

The anti-theft function is armed if the transmitter sends the LOCK message to the control module/receiver when the ignition is OFF. When the hood, door, or trunk is opened, the hood open, door contact, or trunk open switch sends a "ground" signal to the control module/receiver. Unless the control module/receiver is disarmed, the siren will be activated when the "ground" signal is received from the trunk open, hood open, or door contact switches.

The following actions disarm the anti-theft system:
- An UNLOCK message is received from the transmitter.
- Key operation is detected by the tamper switches. (The tamper switches are operated by the lock cylinders in the front doors and trunk.)

The alarm will also be activated if the control module/receiver detects voltage from the ignition before either of the following conditions occur:
- An UNLOCK message is received from the transmitter.
- Key operation is indicated by the tamper switches.