2000-2002 transmission problems help

I have a 2002 Grand Prix 3.1L that might have a tranny problem. I can get a tranny out of a 2000 Grand Prix 3.1L. Are these the same thing?? If not exactly, will it work in the 2002 without setting off codes???

both use the GM 4t65e (M15) and have a 3.05:1 ratio final drive so they should be interchangeable.