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Thread: LLY Tap shift

  1. #1
    New Member
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    Apr 2016
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    Default LLY Tap shift

    Hello, I have an LLY duramax and 5 speed allison in my GU patrol. I am looking into the tap shift application for this model, I can find details regarding the resistances/voltages required to signal the TCM for normal mode/up/down shift request but am unable to find to which pin on the TCM this needs to be connected to.

    Does anyone know what pin the signal needs to be connected to?

  2. #2
    Lifetime Member GMC-2002-Dmax's Avatar
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    Dec 2005
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    1,294

    Default

    Fleece makes a kit, they might have instructions on their web site, or maybe purchase a kit from them.
    www.mscservices.net


    Tuner of many, many Duramax and Cummins Diesels.


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