1997 Buick Skylark 3.1L need air conditioner codes. compressor clutch won't engage.

Question

pressure switch on the high side reads 1.2 volts on red/black wire, & zero volts and 5 volts on 2 other terminals . system pressure on gage reads about 80lbs/in on high side port . compressor clutch will not engage. but blower motor will come on and run normal for heat or air control position.

Answer 1

You need to test for power at the clutch , if it has power you need a clutch or the whole compressor.