BDC Body Domain Controller

The body domain controller (BDC) is the central control unit in the vehicle electrical system. At the same time, the body domain controller (BDC) is the gateway for the other control units. The Body Domain Controller (BDC) ensures functions from previous control units Front Electronic Module (FEM) and Rear Electronic Module (REM).

For example, the Body Domain Controller (BDC) as the master control unit is responsible for the functions of the exterior lights. It decides which lighting functions have to be activated or deactivated.

The exterior vehicle lights are automatically controlled via several input signals (e.g. from the rain/light sensor) and can be switched on or off manually via the light operating facility.