Thanks for the tips.
Far as updates.
The only code I get now is AC 49. Temp control was splendid today, still just blows out the defrost.
Hunting down the code that means CONTROL MODE DOOR INPUT SHORTED TO BATTERY. Is that usually the Mode Door Actuator or are there any likely shorts.
Between that and the no start until I move the shifter I had the charging system checked for permanent drains. The auto parts store reported I have a .3 Amp drain, the battery "needs charged" despite me driving plenty, they report the alternator works great as does the starter.
My plan is to get the battery out, which apparently I don't need to take the wheel well apart to do, check the connections for corrosion, charge the battery and maybe toss a new battery in if it still shows "needs charged".