Just R&R the heater box, had the dash and everything else out, now while all else works, my ac/heat control module is dead, cannot even turn on the fans? Did connect correct plugs and tried a different unit, no fuse alerts on VCM. What could it be??? TY guys and gals

 

There is a chance you might have the issue described in this bulletin, a failed microswitch in the control panel itself.

Cheers,