I have a problem with the cooling fan turning on. I know that the temperature sensor next to the thermostat is what turns the fan on and off so I wired the two wires together to make the fan constant. There is no power coming to the fan motor and I know that the fan works because I have it wired to a different power source. The fuse in the engine bay is good. I dont't know what else could cause this problem. any help is appreciated...