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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 192 (Theft Deterrent System) >> Description and Operation >> Content Theft Deterrent (CTD) Description and Operation >> CTD Circuit Description >> Door Ajar Switches

Door Ajar Switches

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

The CTD system uses the door ajar switches in the door latch assemblies as one method to activate the alarm. The BCM monitors all door ajar switches via a discrete input from each door latch assembly or door jamb switch. If the BCM receives a ground signal from any door ajar switch when the CTD system is armed, the BCM will activate the alarm.

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