a/c wiring trivia challenge

[treed2 at wsu.edu (T. Reed)]

I'm trying to put my a/c back together after I gutted it and put it in 
to storage a couple of years ago.

I tracked down the little guide piece I was missing that interfaces the 
thermostat with the hot-cold slider in the hvac controls, but I still 
haven't found the wiring harness that connects the a/c compressor to the 
idle stabilizer valve and low pressure switch. I either threw it away or 
left it behind when I moved.

It looks like I'll have to recreate it, which shouldn't be too hard.. if 
I can find the connectors it's supposed to attach to.

IIRC, the compressor clutch was grounded with a short brown wire to the 
alternator case. The positive side of the connector should lead to one 
terminal on the low pressure switch; its other terminal should connect to 
a green wire coming out of the harness that I am not missing (which goes 
through the thermostat switch and then ignition power).

Here's what I can't figure out, though.. the compressor clutch gets 
powered when the thermostat closes and there is adequate pressure in the 
system. According to the Bentley, the idle speed stabilizer valve also 
gets power at the same time as the clutch. That makes sense because more 
fuel is going to need to be burned to keep the idle the same with the load 
of the compressor.

This power supposedly arrives through a small-diameter green wire. My idle 
stabilizer valve has 3 wires and none of them are pure green, so I have no 
idea how to wire this up.

Is this connection already made upstream of the section of harness I'm 
missing? Anybody know?

-Toby