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Originally Posted by dantatara
Yes, the first thing I did was run the fans direct and checked ok. I understand the schematic and the 3 relays also. Low speed runs the fans in series with each other and high speed runs the fans with the full 12v each. What I need to do is find the grd wire for both Lo/Hi relays, grd it operating the relays and the fans should work. (I'll probably lift the fuse block out and get at the wiring there) This would narrow the problem to be the PCM or PCM controls. I need drawings showing details going out. For example, PCM details. Question; Where is the AC pressure switch?
Thanks
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Cool (well, not yet temperature, but that you know what to look for).
I tried to get a picture of where the sensor was, but it is way too crowded under the hood, so I put up a drawing (link below). I think it is below the Air Filter housing.
Air Conditioner Pressure Sensor
Good Luck,