Simple Bus Interface (SBI)

There are two Simple Bus Interface (SBI) segments, one segment is used to transmit messages containing switch information between the Drivers Door Switch (DDS) and the Drivers Door Module (DDM). A second SBI segment is used for serial communications between the DDM and the Passenger Door Module (PDM) and Rear Door Module (RDM). The PDM does not communicate directly with the Drivers Door Switch.