Functional description

The following functions are controlled by the Body Domain Controller (BDC).

• Terminal control
• Electronic immobiliser and control of drive authorization
• Central locking system with control of the access authorization and locking authorization
• Comfort Access and non-contact tailgate opening
• Steering column switch cluster with electrical steering column adjustment
• Front and rear exterior lights and brake light
• Interior lighting
• Power window regulator, front and rear
• Exterior mirror including mirror heating
• Inside mirror and rain-light-solar-condensation sensor
• Wash/wipe system with washer jet heating and rear wiper
• Seat heating (if no seat module is present)
• Automatic air recirculation control (AUC)
• Rain-light-solar-condensation sensor
• Reading the fuel tank level

The central gateway module (ZGM) is integrated into the Body Domain Controller (BDC). 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 Body Domain Controller (BDC). 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).

Fig 1: Identifying Central Gateway Module

Courtesy of BMW OF NORTH AMERICA, INC.