OBD fault code library
Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.
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Fault codes
U0010
Internal malfunction detected in ECM (CAN bus)
Mercedes Benz
Communication Network System
High severity
U0011
Internal malfunction detected in ECM (CAN bus)
Mercedes Benz
Communication Network System
High severity
U0013
Internal malfunction detected in ECM (CAN bus)
Mercedes Benz
Communication Network System
High severity
U0014
Internal malfunction detected in ECM (CAN bus)
Mercedes Benz
Communication Network System
High severity
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