If the fuses are fine I would pull the bulbs out of the fog lights and check them to see if they are burnt out you could also use a test light on the bulb holder turn the fog lights on in the vehicle take test light and test both tabs in the connector one should have power and other side will not if bulbs look good and there’s no power coming to the bulb connector the switch might be bad or could have a break in the wires coming from the switch. Hopefully this will help