Adjusting a bridge circuit with a control unit having

The present invention particularly relates to an adjustment device for a fastener element on a vehicle, such as a window, a sunroof or a convertible top, wherein the closure element is adjustable by means of the closure device between a maximum open position and a maximum closed position, and wherein the adjusting device for adjusting the closure element has a drive motor (M) and an electronic control unit and the control unit has a bridge circuit (B) to supply the drive motor (M) with electric current and the rotational speed and the rotational direction of a to be coupled with the closure element the drive element of the drive motor (M) control. Erfindungsgema0 is the bridge circuit (B) with at least one additional consumer (S) of the vehicle, such as a defogger, and is configured to control the energization of the at least one additional electronic load (S) and provided.