I have to hot wire clutch. So no 12v to clutch, Freon is all in check so good there and I'm getting 12v at the relay, but only 2.7 volts to the low pressure switch. I also checked volts at the a/c switch connecter on dash, nothin. Anyway to check the a/c module, that's the black box under evap case right? I heard there a bit delicate? It's kind of funny, I found a trail of evidence where the last technition hunted on the same path as me, but broke every little plastic tap/clip along the way.... Any other ideas