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Thread: How to tell if L5P PCM is already unlocked?

  1. #1
    Advanced Tuner 96gt4.6's Avatar
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    Aug 2008
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    How to tell if L5P PCM is already unlocked?

    I have a customer that has purchased a 2019 2500/L5P at auction, with what appears to be a new pcm installed (case is new looking/shiny, rest of the truck isn't). He is wanting to tweak a few things in the PCM, but we're not sure if the PCM has already been sent out to be modified or not.....

    Is there a way to tell before we removed/sent it off? Can you just try to read/license/write to it, and if it fails assume it still needs the unlocker service?
    '17 Whipple'd S550
    Too many other projects to list.....see my YouTube channel for more: https://www.youtube.com/channel/UCr7...-XfDG53sCh6tcw

  2. #2
    Advanced Tuner
    Join Date
    Aug 2016
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    386
    Send a support ticket in with a VCM Suite log, there should be enough information there for them to determine if it was previously unlocked.

  3. #3
    Advanced Tuner 96gt4.6's Avatar
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    Aug 2008
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    Kansas
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    Will do! Thank you!
    '17 Whipple'd S550
    Too many other projects to list.....see my YouTube channel for more: https://www.youtube.com/channel/UCr7...-XfDG53sCh6tcw