Door, Lock And Lid Switches

There are contact breakers in the side door and tailgate lock units which indicate whether the door or tailgate/trunk lid is open or closed. There is a separate contact breaker located at the hood if the vehicle is equipped with an alarm. There are no contact breakers by the fuel tank filler cover. The contact breakers are closed if the door or hatch is closed and then provide a direct ground connection to the Central electronic module (CEM).

There is a contact breaker in each lock unit that indicates the position of the lock motors on the central locking motor and lock motor for electrical child-proof lock (if such a lock unit is installed). The contact breakers are directly connected to its respective door control module, which then forwards the information to the central electronic module (CEM).