Auxiliary contact on Delta? MUTS input? Did you mean that it would run on inspection if you pick the UA or DA relay by hand or that it would run on auto if you picked the relay by hand? UA and DA outputs are controlled by the software and position of the car relative to the call inserted. It is doubtful that the software has taken a dump, but not impossible. Check all inputs and outputs and see if there is ANY input or output that is not correct. Door close limits can cause a no run situation on some other software, even if the locks are made and everything else is right. Do you have another controller to compare its inputs and outputs to?