Scania fault code 4391

EMS Engine Management System Cylinder balancing, cylinder 7 The highest level to which the control unit can adjust the fuel volume for the cylinder has been reached. Read explanation → BMU Battery Management Unit Battery module 7, cell monitoring circuit board, minor internal fault The cell monitoring circuit board has detected an internal error and is having trouble monitoring the status of the battery module. Read explanation → DDU External amplifier, disconnected node (broken connection?) Information is missing, update is in progress. Read explanation → AMS Exhaust gas temperature sensor T158, short circuit to earth The EEC control unit indicates that the voltage supply to the exhaust gas temperature sensors is shorted to earth. Read explanation → EEC Exhaust Emission Control The voltage supply to the exhaust gas temperature sensors. Fault in the voltage supply to the exhaust gas temperature sensors for exhaust gas aftertreatment. Read explanation →