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U0100 Diagnostic Trouble Code Discussion for October 2019

Lost Communication With ECM


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Trouble Ticket Help Requests for DTC U0100
Help Request Posted
2014 Mercedes-Benz Sprinter 2500 3.0L MIL Lamp on VIN: WD3PE7CC9E
U0100: can bus downstream nox. ... burnt nox harness for upstream sensor,we now have can bus codes for downstream nox sensor of u029e,u0100,u0046, ohmed out harness to rear nox sensor and found no issues, any Mercedes techs with info on relearning noxsen...
October 11, 2019