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Thread: questions on clear trans adapts / relearn process

  1. #1
    Junior Member
    Join Date
    May 2019

    Default questions on clear trans adapts / relearn process

    I am working with a 2008 GMC Yukon XL, 6.2L, 6L80 transmission (T43 TCM), using the version 7.5 scan software with a Flashscan V2. Very new to EFI Live, as you'll see.

    I read this post from Longslyde about how to go through the clear (reset) trans adapts process and the fast relearn process. Very helpful, thank you.

    Am I supposed to have the engine running for the entire process (both resets and fast relearn)? Or just for the fast relearn?

    It is mentioned that Clutch Purge must be enabled for fast relearn to take place. I didn't find Clutch Purge in the DVT tab (see screen capture). Is Clutch Purge located somewhere other than the DVT tab?

    I quickly learned that the version 8.0 scan software doesn't have the DVT tab so that means use version 7.5 (in case someone else comes across this problem).

    Thank you for any help.

    Click image for larger version. 

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  2. #2
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003


    To clear the Trans Adapts, you should be able to do it with key on engine off.

    Hmmm, not sure about Clutch Purge.

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