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p2509

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  1. J

    P2509 and not charging

    My 2009 2500 stopped charging, throwing the “lightning” light on the dash, as well as “check gauges”. Nothing I have read about P2509 (which I have) indicates that it would affect the alternator. I put a new alternator on, same problem. If I manage to correct the P2509 issue, should my charging...
  2. J

    Electrical Gremlins P2509 C-codes A4, A6

    As the title states, I have a P2509 and Chassis codes A4 and A6(which I cannot find listed on a c code list) in a 2004.5 24v 2500 and I am trying to find the best long term solution. Prior to the code being thrown, I would have intermittent surging while driving but was never consistent to...
  3. T

    p2509 won't clear, and extended cranking time, low volts on dash

    03 ram 5.9 4x4 w only 82k and never a problem. Battery was very low after not driving it for 2 weeks, barely started then CEL came on code p2509. Now takes 3 seconds to start, every time, used to be instant. Replaced batteries, code won't clear, voltmeter on dash stays at 11v until I drive for a...
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