Functional description

The following functions of the Car Access System (CAS) have been integrated in the Front Electronic Module (FEM).

• Terminal control
• Electronic immobiliser
• Comfort access system
• Electric steering lock
• Central locking system

The following functions of the Junction Box Electronics (JBE) have been integrated in the Front Electronic Module (FEM).

• Power window regulator
• Wash/wipe system
• Washer jet heating
• Climate control
• Seat heating
• Mirror heating
• Automatic air recirculation control (AUC)
• Rain-light-solar-condensation sensor

The following functions of the footwell module (FRM) have been integrated in the Front Electronic Module (FEM).

• Exterior lighting
• Brake light
• Interior lighting
• Exterior mirrors

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). The task of the central gateway module (ZGM) is to connect all bus systems. This combination allows general use of information from the individual bus systems. The central gateway module (ZGM) is able to implement various reports and speeds on other bus systems. The programming data are transferred to the vehicle by Ethernet via the central gateway module (ZGM). The Front Electronic Module (FEM) is located in the A-pillar of the passenger footwell and controls all functions in the front section of the vehicle.

Fig 1: Identifying Front Electronic Module And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.