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Home >> Saturn >> 2006 >> Vue Red Line, AWD >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Theft Deterrent System >> Description and Operation >> Content Theft Deterrent (CTD) Description and Operation >> CTD Circuit Description >> Door Ajar Switches

Door Ajar Switches

The CTD system uses the door ajar switches in the door jambs as one method to activate the alarm. The BCM monitors all door ajar switches via a discrete input from each door ajar switch, including the rear compartment. If the BCM receives a ground signal from a door ajar switch when the CTD system is armed, the BCM activates the alarm.