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Thread: j1939 cable for Flashscan V2

  1. #1
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    Default j1939 cable for Flashscan V2

    I have a customer with a school bus with an allison 2000. it is having issues and was wondering if there was a place that makes an RJ45 to j1939 cable and if it would work with the V2. or is this is even possible. From what i've read so far the only thing standing in my way is that flashscan cables are for OBD2 and the bus uses a round 9 pin ISO data connector.

  2. #2
    Lifetime Member THEFERMANATOR's Avatar
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    I believe you can hook an OBD2 style plug into it like it would be on a truck and read it that way. Basically you would have to make a bench harness to do it.
    1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
    DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.

  3. #3
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    Even if you do that, I doubt EFILive supports it as its not an Allison 1000 TCM...
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

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    From some info i have read it is suggested all five speeds use the same TCM. I dont necessarily need to tune it just log some data with the scan tool i already own, and my favorite to use

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    Ah really?! That would be good news if its indeed the case! EFILive =
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  6. #6
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    99-05 5 speed ALLISON 1000/2000/2400 all use the same TCM. There is SEVERAL different operating systems for them though, and then you throw in ALLISON customized ones into the mix as well.
    1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
    DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.

  7. #7
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    I just read an Allison2000/2400 TCM. Interesting indeed! Plugged it into my '02 chevy and saved the OS to my library. Yes they can be tuned with EFILive!

  8. #8
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    Well, we all learned something today


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    Quote Originally Posted by LReiff View Post
    I just read an Allison2000/2400 TCM. Interesting indeed! Plugged it into my '02 chevy and saved the OS to my library. Yes they can be tuned with EFILive!
    FLEECE has been doing this for awhile now. He uses some custom software he has to make OS changes, then EFILIVE to make shift point changes(at least that is what he has posted in the past).
    1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
    DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.

  10. #10
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    Whats the benefit of having one? Just Curious
    04 LB7
    2010 LMM
    2015 LML

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