Door Ajar Warning Indicator
WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
The door ajar switches provide a ground signal to the instrument cluster on vehicles not equipped with the remote keyless entry (RKE) system and to the VSM on vehicles equipped with the RKE system. The VSM, upon receipt of the door ajar ground data, supplies a door ajar status message to the instrument cluster through the communication network. The instrument cluster monitors the door ajar status and commands the door ajar warning indicator on or off according to the door ajar status message.