Ok Fans were working perfectly three days ago. Now only one fan comes On. I tested the fan motor by connecting straight to the battery, so the motor works fine. So I tested the pig tails. One pigtail works great! The other pigtail put out ZERO volts! I put a brand new relay and still did the same thing! So why would the pigtail just all the sudden lose power? One works one doesent! I traced it back through the wiring and nothing seems to be any different! Plus the pigtail itself isnt bad because I spliced into the wires and tested them as well. I checked fuses and everything! So in order to get the both fans to work I had to splice a pigtail to the good source. I hate to rig stuff up but I did it until I figured out how to get power back into the other Wire! Thanks

 

It must be the wire. Thats a weird situation though.

 

Fan OK
Connector OK
Wire? Shorts?
Fuses?
Relays? Swap with primary to test
Fan switch?
Lots more to check...

 

I checked everything, and swapped! Except for the fan switch?? Not sure where that is! Its a tricky deal

 

passenger side, between 6 & 8 if i remember (i dont have one hehe)

So if you ground the relays they work? Have a multimeter right?