CHAMP gateway
WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
The CHAMP gateway control module forms the interface for data exchange between the MOST bus and the K-CAN (body CAN). The two bus systems transfer data formats with different data transfer rates and formats. In order to communicate with all systems, the data for each bus is configured accordingly in the CHAMP gateway.