Originally Posted by
Hotrodcorvette
Hi all,
I had a TCM die on me on the way to work this morning. I was able to get a replacement TCM and limp if off the highway (2nd gear I think). Luckily I read the stock TCM tune a couple of months ago when A50 tuning was released.
I tried to reflash the stock tune in and it will not work however... I am getting an error $0531, controller device mismatch.
Does anyone know what I need to do to flash this new TCM and get it out of limp mode?
Truck is a 2011 Duramax 4 door LTZ, 4x4, Dually if it matters.
Thanks for your help!
Tyler