Method for monitoring the voltage supply of the control device in a motor vehicle

Here being proposed is a method for monitoring the voltage supply of the control device in a motor vehicle, supplying module for supplying a voltage is connected to the components of the control device via the reset line, the control device a new each time it is started, or after filtering the error of the monitored voltage, it is shown again without errors by all monitoring boundaries of the feed module, testing the reset line is performed. This test is performed by forced periodic pulses, where these are those published by distorting the border of the monitoring band for the supply voltage. Here, the reference voltage VREGEL and VREF is maintained so as not dependent on each other, whereby adverse effect is avoided.