Hello guys-

So I'm pretty experienced on the Gen 3 Gas engine tuning stuff so I'm not a total noob but I have no Allison experience at all.
Buddy of mine has an 06 Chevy with the 8.1 and 6 speed allison, I was trying to read the TCM by selecting it from the drop down menu (A40 6 Speed Ally TCM), but my Flashscan V1 cable won't connect. Is the V1 not capable of reading the TCMs?
Is there something I'm not doing right? I looked for a while but there isn't really a beginner area on the forum for Allison stuff... Sorry for the day 1 rookie questions but I am stumped.
Is there a special process for flashing or is it just like the PCMs?

Thanks for any help,
Mike