Brief description of components: Alternator

The alternator is connected to the DME control module across a bit-serial data interface.

The alternator interchanges data with the DME control module across a bit-serial data interface. The alternator provides the DME control module with information, e.g. type and manufacturer. This enables the DME control module to adapt control of the alternator to the alternator model fitted.

Fig 1: Identifying Alternator And Plug-In Connection With Bit-Serial Data Interface

Courtesy of BMW OF NORTH AMERICA, INC.