Door Ajar System

The door ajar state is used as an input for various control modules on the vehicle. The DRBIII® will display the state of the door ajar switches in Inputs/Outputs. It's important to note, that when a door is closed, the switch state on the DRBIII® will show OPEN, and when the door is open, the switch state will show CLOSED. During diagnosis, if a door is closed and the DRBIII® displays the switch state as CLOSED, it indicates a shorted door ajar circuit. If the door is open and the DRBIII® displays the switch state as OPEN, it indicates an open door ajar circuit.