1999 Ford Contour Fan relay

Look behind the glove box, best way to locate it is find the blower motor. Trace the wires back to the resistor. There is a blower relay, and a blower resistor and sometimes a blower module and it is know as a resistor either way there mounted inside the blower box so they can stay cool they have to have air blowing on them. Hope this helps. ( NOS

PS if your having trouble with blower speeds check the switch alot of times I see burned up wiring due to blower load.