Air Conditioning Does not work acc

I need help, My auto climate control is flashing a code, ac does not work in my 96 bonneville , I need to know wich wires to cross on plug in that goes to auto climate control box and wich wires to cross on relay to try to pinpoint problem. Accuator is functioning properly and all fuses are good. any help would be much appreciated. car is fully charged 134a but compresser will not kick in and I have tried dissconecting the battery to reset but still nothing. Thanks Ted