I have an 02 GMC sierra and was wondering which wire do I use for the A.C fan turn on, Ive read that its a green and white one in the fuse box under the hood. theyre alot of green and white wires in the fuse box. can anyone show me some pics of where exactly the wire you guys use is. Id aperciate it, thanks.

 

its the solid green wire thats in the harness that comes up from the bottom of the motor right by the lil red power supply box on the DS of the motor

 

thanks, any pics? just to make sure.

 

someone has some on here somewhere might try a search for fan harness and i bet you find it

 

minus stupid. If you can't find a pic just open up the wire loom that goes right by the red junction box, theres only one solid dark green wire in there.

 

thanks, later.

 

This should help...

My green wire was found here

 

Depends on how you want to signal your fan to turn on. Using the green wire (noted in the picture above), this is the actual power wire for the a/c compressor. Lots of people use this one.

Two pins over from that wire is a green w/white wire. This is the ground signal wire for the a/c compressor relay. You can use this to do the same for your own a/c fan relay. This is what I use.