Front electronic module (FEM): Front Electronic Module

The Front Electronic Module (FEM) is the central control unit in the vehicle electrical system. At the same time, the Front Electronic Module (FEM) is the gateway for the other control units. The front electronic module (FEM) safeguards functions from the following former control units:

• Footwell module (FRM)
• Car access system (CAS)
• Junction Box Electronics (JBE).
• Central gateway module (ZGM)

The central gateway module (ZGM) is integrated in the Front Electronic Module (FEM). It is seen as a control unit within the control unit, as the central gateway module (ZGM) acts as a self-sufficient control unit within the Front Electronic Module (FEM). As the master control unit, the front electronic module (FEM) 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.