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Thread: 4l80E No TCC

  1. #1
    Potential Tuner
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    Nov 2024
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    4l80E No TCC

    hey everybody I have an issue that I can't figure out. I have a gen 3 6.0 with a 4L80E (2002) standalone harness with a 0411 computer. When I had it tunned, I had asked to have the tcc turned off. now I realize that was a mistake and I'm trying to turn it back on. in the VCM scanner when I monitor tcc mode it is OFF. When I look in VCM editor I don't see anywhere to enable or disable it. I compared my apply and release tables to others and they look rite. What am I missing? Any help would be appreciated.

    Thanks.

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    Last edited by JB55; 1 Day Ago at 09:00 PM.

  2. #2
    Senior Tuner Ben Charles's Avatar
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    Aug 2009
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    Most likely wiring issue… go into VcM controls and “unlock” and lock it, and see what it does

    Email Tunes, [email protected]
    96 TA Blown/Stroked, 4L80E/Fab 9
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  3. #3
    Potential Tuner
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    Nov 2024
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    Quote Originally Posted by Ben Charles View Post
    Most likely wiring issue… go into VcM controls and “unlock” and lock it, and see what it does
    Thanks Ben, I did try that with key on engine off. I heard a click. That function is just for testing correct? I'm new to the MPVI3.