So when I turn on my ac for a few seconds my ac fan comes on while the light is solid green. Once my light flashes the ac fan turns off. My compressor never engages. I applied 12v to the black/white wire in the 3 wire pack, nothing. Is this the right wire to engage the ac clutch? Is it possible to replace just the ac clutch? I have jumpered the pressure switch and only the ac fan comes on for a second, no clutch engagement. I'm pretty sure the clutch is bad.