That's not a simple question. You haven't listed what the symptom is, what diagnostics you have done, what the cause of the problem is, or what it will take to fix it. When this circuit was designed with common sense, the horn switch on the steering wheel turned on the five-dollar horn relay which turned on the pair of horns. That was much too simple and reliable. On your vehicle the insane engineers saw fit to make the horn switch send a voltage to the most complicated computer module, the instrument cluster. It interprets that signal and sends a digital computer signal on the data buss to the "FEM", the Front Electronic Module, another computer, which interprets that signal as the "horn request". It turns on the relay to blow the horn. Two computers involved in blowing the horn. You can check the fuses first, but the typical repair bill on a Ford for a dead horn, after lots of diagnostics, is $800.00.
Tuesday, February 12th, 2013 AT 1:20 AM