Cavalier L4-2.2L VIN F (2004)
Door Switch: Description and Operation
DOOR AJAR SWITCHES
The CTD system uses the door ajar switches in the door jambs 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, 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.
