Scania fault code 4357

EMS Engine Management System Rotational speed sensor The signal from rotational speed sensor T74 has indicated an implausible rotational speed decrease between two subsequent pulses. Read explanation → BMU Battery Management Unit Battery module 5, cell monitoring circuit board, internal fault The cell monitoring circuit board has detected an internal error and cannot monitor the status of the battery module. Read explanation → DDU Vehicle error in the navigation system Information is missing, update is in progress. Read explanation → AMS The reductant doser V231, blocked prefilter The pressure drops too fast when the reducer doser opens. Read explanation →