Looks like two separate issues.

My memory sucks.... were you the one who had the key fob issue where one key wasn't being recognized?

The tcase codes could be a few things. I'd try disconnecting the shift motor and clean both connectors with electrical contact cleaner, then put some dielectric grease on them and plug back in. Clear the codes and see if they come back.

For the other codes did you return your tune back to stock already? If so, did the problems continue?