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Thread: L18 TCM Read Protocol Not Detected

  1. 10-30-2015 #1
    nskaats
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    L18 TCM Read Protocol Not Detected

    I am trying to read the program in a 2006 Silverado 2500 with the L18/Allison combination. I keep getting this error. Software is 2.24. Any suggestions?
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    Nick Skaats
    Skaats Precision Motorsports
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  2. 10-30-2015 #2
    nskaats
    nskaats is offline
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    Nevermind. Pulled TCM fuse and no problem.
    Nick Skaats
    Skaats Precision Motorsports
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