Any electronic shift AT trans experts in here?

Not old Mopar related but may cross over.....2008 Mazda 3, no first gear, says shift solenoid stuck. Easy fix? just a new solenoid or are these usually TCM related? 192K miles. Solenoids are right under the trans pan, looks like a 30 minute job. No codes, this is for sale and Im just researching it.

It could be just a stuck solenoid, but we all know how that goes.
Ah, I think Donny just made my point while I was typing.