Climate Control not working

[pablopicasso46]

I have a 92 ZR-1(#501) and the climate control module is not working AT ALL. I mean it;'s not just that some or all of the buttons don;t work, but there is nothing but a light in the display window where it;s supposed to show the outside temp and no green light above off ,(or auto if you press that) as there was before. (it had a dead battery which I charged and got it to start) I checked all the fuses that say they have anything to do with the a/c and they
look ok,,including # 12,which is supposed to electric door mirrors and the auto a/c programmer(c68)which I am mentioning only because the mirror adjustment doesn't seem to work either. What else can I check/do before assuming the module is bad and puling it out and getting an new(reconditioned) one?

Thanks in advance for any help