2002 Dodge Ram Diesel Won't Connect

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  • Goosed59
    Junior Member
    • Dec 2010
    • 12

    2002 Dodge Ram Diesel Won't Connect

    Having what I believe is a software issue with a Modis Ultra 19.2 / 19.4
    The unit will self identify the correct VIN and will read and clear codes, but when ECM Data is chosen it returns a 'no communication'. With 19.2 it cycles repeatedly trying to connect and with 19.4 just stalls at the 'no communication' Unable to do any functional tests. The unit will do the limited OBD data. When PCM Data is selected (MT w/AC) it shows as if it is connected to an Automatic.
    Verified same issue with Modis Edge 19.4, Ethos Edge 20.2 and Apollo-D9 20.4
    Verified that connection is possible and that all systems appear normal with a regular MODIS 15.4
    Appears to be Isolated to 'only' 2002 Dodge Diesel MT w/AC
    So the question at this point is:
    What software version was this glitch introduced ?
  • diesel71
    Senior Member
    • Feb 2008
    • 921

    #2
    have you tried manually identifying the vehicle?
    Are you sure there is no tuner/chip downloaded to the ecm.
    the modis with 15.4 does not have automatic vehicle id and that might be were your issue is. try turning automatic id off on your unit and see if that works

    Comment

    • Goosed59
      Junior Member
      • Dec 2010
      • 12

      #3
      Already tried the manual ID with the same result.
      Tried with another 2002 Dodge Diesel Std, same result.
      2001 Dodge Diesel Auto = Good
      2001 Dodge Gas Auto = Good
      2000 Dodge Gas Auto = Good
      1998 Dodge Diesel Std = Good
      1998 Dodge Diesel Auto = Good
      2003 Dodge Dakota Auto = Good
      2003 Chevy Tracker = Good
      Last edited by Goosed59; 10-24-2020, 08:26 AM.

      Comment

      • Goosed59
        Junior Member
        • Dec 2010
        • 12

        #4
        I've also pulled out the old MTG2500 (5.2/5.4 cartridges) and am able to access ECM data.
        The question is:
        What software version (16.2 - 18.4) still worked properly when connected to a 2002 Dodge Ram Diesel Pickup ?
        Last edited by Goosed59; 05-18-2021, 07:33 AM.

        Comment

        • Jay G.
          Administrator
          • Dec 2006
          • 435

          #5
          Originally posted by Goosed59
          Having what I believe is a software issue with a Modis Ultra 19.2 / 19.4
          The unit will self identify the correct VIN and will read and clear codes, but when ECM Data is chosen it returns a 'no communication'. With 19.2 it cycles repeatedly trying to connect and with 19.4 just stalls at the 'no communication' Unable to do any functional tests. The unit will do the limited OBD data. When PCM Data is selected (MT w/AC) it shows as if it is connected to an Automatic.
          Verified same issue with Modis Edge 19.4, Ethos Edge 20.2 and Apollo-D9 20.4
          Verified that connection is possible and that all systems appear normal with a regular MODIS 15.4
          Appears to be Isolated to 'only' 2002 Dodge Diesel MT w/AC
          So the question at this point is:
          What software version was this glitch introduced ?
          The Development team is asking for more information can you PM me the VIN # ?

          Jay

          Comment

          • Goosed59
            Junior Member
            • Dec 2010
            • 12

            #6
            2002 Dodge Ram Diesel Won't Connect

            Hey All,
            Worked the problem with my local dealer and the development team.
            The result is that 18.2 worked and 18.4 thru to 20.2 were unable to connect.
            Seems that there was a glitch in the Dodge data base and will be corrected in the 21.4 release.
            Now all they have to do is come up with a patch, for the masses 18.4 thru 21.2

            Comment

            • PLohr
              Junior Member
              • Jun 2018
              • 15

              #7
              Now all they have to do is come up with a patch, for the masses 18.4 thru 21.2
              Was a patch written for this issue?

              If so, where can it be found?

              What is the cost?

              Thanks for any help.

              Comment

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