Ok today put dads truck TCM in my 10. His is an 08 with A40. Truck does not move with his tcm installed in my 2010 with a50.
Not what I was wanting to hear. I too have these issues and I have had Nicks and Robs tuning with no difference
Ok today put dads truck TCM in my 10. His is an 08 with A40. Truck does not move with his tcm installed in my 2010 with a50.
are there different tcm os?
I can get access to another to try as well.
I have a 2010 and 07 LMM sitting here if it's not gonna smoke chit I will
try it ?
I have an 08 I can try. It has a different OS then mine. is there any way I can tell if it will work or do I need to full reflash it?
My OS - 15878459
08's OS - 25836826
You can't full flash an Allison TCM the last I heard..
Ok, the 08 TCM worked in my 10. The only thing I am having trouble with is that 2 times now I have got a "P0659 Actuator Supply Voltage A High" code. The first time it happened when the key was on but truck was not. I had just flashed in a trans tune when it happened. The only change in the tune was shift point raise. I reflashed it again and everything was fine. Then I stopped to get fuel after about 100 miles with the 08 tcm. I was in the truck waiting and turned the key on with truck not running, to reset my DIC, and it came on again. Cleared it and everything is fine now. Tried to duplicate in driveway with no success. Left key for a while strated and shut it off numerous times thinkin it may be a multiple trip thing but it isn't doing it now. Any ideas?