Door Ajar System

The door ajar, tailgate and flip-up glass ajar states are used as inputs for the Body Control Module (BCM). The BCM uses these inputs to determine exactly what position the doors, tailgate and flip-up glass are in. The DRBIII(R) will display the state of the door ajar, tailgate ajar and flip-up glass ajar switches in Input/Outputs. When any door, the tailgate or flip-up glass is closed the switch state on the DRBIII(R) will show OPEN. When any door, the tailgate or flip-up glass is open the switch state on the DRBIII(R) will show CLOSED. During diagnosis, if a door, the tailgate or flip-up glass is closed and the DRBIII(R) displays the switch state as CLOSED, it indicates a shorted ajar circuit. If a door, the tailgate or flip-up glass is open and the DRBIII(R) displays the switch state as OPEN, it indicates an open ajar circuit. The door ajar switches are located in the door latch assemblies.