VOLVOUU All Engines (2013 Emissions) Fault Code: U300049 PID: ACM Electronic Control Unit
Circuit description
The electronic control unit (ECU) has a software fault or the wrong software version
Conditions for diagnostic trouble code (DTC)
Incorrect check sum in data set memory
Observable symptoms
Engine does not start
Probable cause
1) Aftertreatment Control Module (ACM)
English
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