u 2106
u 1096
u 1000

I have lost status (no communication) with my tcm..efi live
I have replaced the nsbu switch

see allison aftermarket for more of a story.

please help

ps. if you know of any tcm i will buy it

If you lost communication with the TCM it is probably bad. Go to an Allison Service Shop instead of a Chevy/GMC dealer. You will get the module for half of what the stealer will charge.