The invention relates to a control device (4) for a
monitoring system (2) of a motor vehicle (1), said control device comprising at least one computing unit (6, 8, 10, 60, 62) for evaluating output signals, supplied to the control device (4) and originating from a sensor (12, 14) corresponding to a function, and for controlling
power electronics (40, 42, 44, 46, 48, 50) of an
actuator (20, 22) corresponding to said function by means of control signals depending on the aforementioned output signals, wherein the control device (4) is designed as merely a single control device (4) of the
monitoring system (2), wherein the control device (4) has a total of three FOC computing units (6, 8, 10) and is designed in such a way that, exclusively by means of said control device (4), a primary function and a secondary function of the motor vehicle (1) can be monitored during normal operation of the control device (4), in which all three FOC computing units (6, 8, 10) are functioning properly, and the aforementioned primary function can be monitored during an emergency operation of the control device (4), in which only one of the three FOC computing units (6, 8, 10) is functioning properly.