Principles of Operation
WARNING: This page is about a different car, the 2008 Mercury Sable, 2008 Ford Taurus X, and 2008 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The smart junction box (SJB) is also known as the generic electronic module (GEM).
The driver seat module (DSM) allows the driver to program a personalized seat position that can be recalled using the memory switch or a remote keyless entry (RKE) transmitter (part of the integrated keyhead transmitter [IKT] key). In addition to the position of the driver seat, the DSM also controls the position of the exterior mirrors and the adjustable pedals. Refer to SEATING article.
The DSM is part of the medium speed controller area network (MS-CAN), over which it receives the selected transmission gear message. All other functions of the DSM are hardwired.