Signal Paths For Adaptive Headlights (E60, E61, E63, E64 E65, E66 From 03/2005): Notes
WARNING: This page does not describe the selected car, but rather 46 other vehicles, including the 2008 BMW M5, 2008 BMW 650i, 2007 BMW Z4, 2007 BMW M6, and 2007 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.
The signal paths between the individual control units can be seen on the following illustration:
The safety and gateway module (SGM) is the data interface between the data buses K-CAN, PT-CAN and byteflight.