Chrysler Repair: 2000 cirrus radiator fans, radiator fans, chrysler service

Question
Roland buddy, me again, with the cirrus fans not coming on, i tested the wire harness 4 pins in it, i beleive there are 2 grounds 1 yellow, one green,  i cycled the low and high speed relays with my computer one at a time and put multi-meter on the wires in this harness and while the relay was opening and closing, the volts were jumping anywhere from 6v to 23 v  so i tryed it on high speed wire and it was the same, any idea what would make the voltage jump around.  I am clueless as to what would make volts jump?

Answer
Hi Greg,
I can't imagine how you would get voltages like that and why the relays would be opening and closing unless you were calling on them to do so. With a digital meter and circuits that have some inductance you no doubt can get switching transients. But I assume you didn't have any steady state voltages above about 14.4, unless there is something wrong with the voltage regulatory function on the alternator which is done by the engine control module. I am surprised that there are no ground wires that are black. Of course I don't have a wiring diagram for the 2000 model and I believe I told you that I was working from a '97 manual.
I do have a manual for the 2000 Sebring Sedan and it shows a more complex circuit with three fan relays (one for low and two for high speeds) and four leads to a single fan motor. So I am afraid my lack of a manual and an explanation for what you have there is limiting. You may need to get a Chrysler service manual to get to the bottom of this.
Roland