Tyre pressure monitoring system

The invention relates to a method for carrying out the assignment of the wheel positions to air pressure control devices 6a to 6d in an air pressure control system and an air pressure control system for carrying out the method. The method is automatically performed immediately after the vehicle is put into service in an assignment mode. In this mapping mode, measured values ​​are independently measured from sensors 16a to 16d associated with the individual air pressure control devices 6a to 6d and sensors 4a to 4d whose wheel position is known. The identifiers of the air pressure control devices 6a to 6d are assigned to the wheel positions by comparison of the measured values ​​measured by the sensors 16a to 16d with the measured values ​​measured by the sensors 4a to 4d.