Here is the schematic diagram that shows the locations of the 2001, Ford Windstar fuses and circuit breakers,,in both the cabin (passenger compartment) and "under the hood" circuit panel boxes....
More than likely the fan works however the ECTS needs to be replaced. This sensor is used by the PCM to turn the fan on and off. The relay is the same as the a/c relay IIRC. Switch relays to...