Abstract: A sensor test system for a pressure sensor in an electronic parking brake (EPB) of a vehicle. The pressure sensor is configured to measure a pressure in a pressure chamber or in a pressure line of the EPB. The sensor test system includes a pressure setting module configured to set the pressure; and by a detection module configured to detect, based on pressure set by the pressure setting module and based on a measured pressure from the pressure sensor, a potential malfunction of the pressure sensor, and to issue a warning signal if the potential malfunction is detected.