Air Conditioning suddenly stopped working?

A/C does not work, it stopped suddenly. I had the refrigerant level checked, that is good, no leaks. I think it could be the pressure switch. My question is, does this particular car have only one? I can find only one. There is none on the compressor or the low-pressure line, only the high-pressure line. The switch I found I cannot get continuity on any of the pins, which is why I think the switch could be bad.