No power to A/C compressor. A/C switch works

My A/C compressor clutch won't engage. Everything in the control circuit is working fine. When I flip the A/C switch on the dash the A/C relay contacts engage. I confirmed with a test light that the A/C relay is getting power from the fuse on the two pins where it should, pins 86 and 30. So the wire running from the relay to the compressor should have power, but I'm assuming it's broken somewhere.

I unscrewed the fuse panel and reached my hand behind and wiggled the wire coming off the relay, so I believe it is properly connected to the back of the relay plug.

Anybody else have this issue and know where this wire is apt to break? I've checked the wire all the way from the compressor to wire it disappears into the firewall harness.

 

Problem solved.

Like I said everything in the control part of the circuit works fine: both pressure switches work, the A/C switch works, and I have refrigerant charge. The relay clicks when I flip the A/C switch, and I have proper power going from the fuse to the relay. That basically narrowed it down to a problem in the wire running from the relay to the compressor, or a bad ground off the compressor.

I had power on the compressor wire at the plug on the front of the firewall, but no power at the plug at the compressor. The wire was broken somewhere in between. I tracked it down to somewhere in the huge mess of wires looping around behind the ecm.

In lieu of tearing all that apart I just spliced in a short piece of wire to bypass, and wham bam shazam, I got power baby.