What led you to the switch? Has anything actually been diagnosed? This is a real simple circuit, especially compared to Ford's current disaster that has two computers involved in blowing the horn.
Start with the relay under the dash. Do you hear it click when you press the horn button? If not, pop the cover off, reinstall it that way, then press on it to see if the horns work.
Saturday, February 15th, 2014 AT 3:24 PM