The invention relates to a control module for use in motor vehicles, comprising a plurality of signal inputs, a plurality of signal outputs, a central storage unit which is connected to at least one functional unit for further processing incoming signals. A signal identification number can be assigned to the at least one signal coming into the central storage unit such that the signal can be identified and further used by the at least one functional unit. The at least one functional unit can be exchanged in a modular manner. The invention additionally relates to a system for configuring the control module, to a method for using the control module, and to a motor vehicle control unit comprising the control module.