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November 20, 2020 Service bulletin

Engine Control Module (ECM) Flash Failure, Diagnostic Trouble Code (DTC) U1601 ? ECU Application Software...

Ram technical service bulletin S2008000186 for 2021 Ram 1500, 2019-2021 Ram 2500 and 2019-2021 Ram 3500 and others.

Bulletin number
S2008000186
Component
Engine
Summary
Engine Control Module (ECM) Flash Failure, Diagnostic Trouble Code (DTC) U1601 ? ECU Application Software Code 1 Missing Or Corrupted

Owners of these vehicles have filed 449 complaints in the engine category.

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