Caravan (or any) A/C clutch diagnostics

Yes: The only switch I found was on the high side up at the drier. Its a 3 pin so its not just a 'jump it' type of connection. I also read that you can't jump these 3 pins as it will damage the ECU that drives this system. So the test is put the whole plug in water (?) and sure enough, the fans started up but no compressor clutch. Weird test but I think the 5V supply voltage has to be reduced for the sense line, another said to back feed it 2.5V via a voltage drop resistor (2 150's across in series and you tap into the middle), the water seemed easier and it did trip the fans. Ill test when it gets a little lighter out. Good news is these compressors look to just unbolt and drop out the front, I saw a few at the junk yard and it looks like they can even be lowered a few inches with the lines attached to do whatever you need to do on them, ie. pressing the coil back onto the ring. Hope that is not impossible with hand tools under there. Last thing I want to have happen is lose the R134, its literally ~$12 for 12oz. with $10 on top of that to return the can.