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U0046 Diagnostic Trouble Code Discussion for October 2019

can bus downstream nox


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Trouble Ticket Help Requests for DTC U0046
Help Request Posted
2014 Mercedes-Benz Sprinter 2500 3.0L MIL Lamp on VIN: WD3PE7CC9E
U0046: can bus downstream nox. ... sensor upstream and repairing a 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