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August 15, 2022 Service bulletin

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

Ram technical service bulletin S2008000186REVA for 2019-2022 Ram 2500, 2019-2022 Ram 3500 and 2019-2022 Ram 5500 and others.

Bulletin number
S2008000186REVA
Component
Electrical system
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 218 complaints in the electrical category.

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