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  1. F

    Service DEF system fault (new fault)

    So I've got this message this morning and then its telling me I've one got x-number of miles until my speed is restricted. Plug in my scanner and came up with a few codes u02a2 and u02a3. Something about lost communication reductant quality module and lost communication with particulate matter...
  2. F

    hello

    Hi there im new to the forum but not new to Cummins just bought 2019 3500 but had a 1998.5 2500 for about 10 years and loved it.
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