body control module (automotive) (BCM)

A Body Control Module (BCM) is a central control module in motor vehicles. It is one of many electronic control units( ECU) that performs various functions.

BCM modules provide the interfaces for driver assistance systems and bus concepts. They reduce the amount of wiring required in vehicles, thereby lowering manufacturing costs and reducing vehicle weight.

Body Control Module (BCM) from MegaVaux

The functionality of vehicle control modules can include all functionalities. Access and driving authorization, exterior and interior lighting, energy management, driver assistance systems, alarm system, windshield wiper, window regulator and sunroof functions, climate control and infotainmentplatforms.

Body control modules can have a smaller or extremely large range of functions, depending on the area of application. They are used equally in inexpensive small cars and in large sedans.