Parking Maneuvering Assistant and Park Distance Control Failure. After activating the PMA (Parking Maneuvering Assistant) or PDC (Park Distance Control), the system stops functioning and a CCM (Check Control Message) is displayed advising the driver of the failure. The following fault code is stored in the PMA control unit 0x481E4D - PMA control unit internal, internal ASIC fault Software error in the PMA control unit Affected I-Level: F2x from F020-15-03-500 F3x from F020-15-07-500