2004 Dodge Srt-4 Radiator Fans Not Working Period

Im stuck.I have an 04 Srt-4 and the Radiator Fans Havent been working period and with the California heat its making my car overheat quickly at idle. Ive taken the car to a shop and had a dianogstic ran on the cooling system. They put straight power to Radiator fan motors and they came on no problems. He told me it was a wiring problem between the Motor and the relay. Well I went to Auto Zone found out I had a bad radiator fan fuse and replaced it. No change.I turned the A/C on hot and cold. Hot the fans kicked on for 2 secs literally and cold absolutely nothing. I have a High and Low and Control Relay for the radiator and I changed the Control, no change.I then pulled the fans out. Pulled the wiring harness that hooks into the fan motor and the wiring harness looks pretty banged up. Took it to auto zone read the connectors out each side put out 15.5 volts. So im assuming with them all being relatively the same that it was working. We pulled a Regular Dodge Neon Haynes Manual off the shelf assuming that the wiring harness isnt much different. There next step was the Engine Cooling Temperature Sensor that comes out of the block. Pretty simple fix next they said check the computer. But everything else in the car works and no codes. And im not one for throwing parts at a car. Im out of ideas and would like some sort of help