-SE electrical issue,I'm stumped.
 

I have a frustrating electrical problem on my GSL-SE, some of you gurus might have an idea.
Problem: whenever the key is on (or engine running) I have a 12v constant to the AC compressor, as well as the BAC valve. Both should only run when needed. The compressor runs regardless of the interior settings. The AC light goes on/off normally, too. I have replaced ECU, all relays under the hood that may have something to do with it, AC/heat controls. I have the factory manual, I have troubleshot and traced wires forever, just can't figure out whats happening.
Any ideas?

ONly thing that will make it run without switch intervention is a short/ground. Got to be somewhere. Good luck.

HOT DANG..I think I found it. There's a diode under the hood attached to a wiring harness. It is part of the refrigerant pressure switch circuit. I checked it with a meter, it checked good. I just got a bunch of parts from a forum member, one of which was the entire harness. Replaced it, now 12V there only when as is on.
YEE HA! Been chasing that SOB for 6 months...:D \
Thanks for the help!

I was gonna mentioned the diode, u beat me into it.