Trunk / Liftgate: Description and Operation

DOOR AJAR SYSTEM
The door ajar and decklid ajar states are used as inputs for the Body Control Module (BCM). The BCM uses these inputs to determine exactly what position the doors and decklid are in. The DRB III will display the state of the door ajar and the decklid ajar switches in Inputs/Outputs. It's important to note, that when any door, or the decklid is closed, the switch state on the DRB III will show OPEN. When any door, or the decklid is open the switch state on the DRB III will show CLOSED. During diagnosis, if a door or the decklid is closed and the DRB III displays the switch state as CLOSED, it indicates a shorted ajar circuit. If the door or the decklid is open and the DRB III displays the switch state as OPEN, it indicates an open ajar circuit.