Dodge Diagnostic Trouble Codes

OBD2 fault codes seen on Dodge vehicles, with what each code means, its typical repair cost range, and notes on specific Dodge models.

Electrical

U0100Critical

Lost Communication With ECM/PCM 'A'

Dodge Ram 1500/2500 • 2007-2012

Ram trucks with the TIPM (Totally Integrated Power Module) can set U0100 when a fault inside the mod...

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