I have an odd one, I think. My A/C compressor went out in October '19. I installed a temporary bypass pulley. I plugged the manifold ports and wrapped it and the power connector up all nice and snug. I just replaced the compressor, pulled a vac and tried to recharge, but the clutch won't pull in. I have spent the last three hours troubleshooting. Initial charge took it to about 55 lbs and stopped. Hi/lo pressure switches have continuity. A/C relay is good and tried switching with another. I even pulled it out and put 12V to it and it closes and I get continuity between the contacts. I get 0 volts at either pin the clutch connector to GND (with engine running and A/C on), but I do get -12V at one pin to the positive battery terminal, which I assume is indicating the GND signal from the PCM. It looks to me like the hi/lo pressure switches and PCM are working, but there is a break between the fuse box (F-35 I think) and the compressor clutch connector, but I have no idea how that would have happened. Any ideas??