1. Disconnect the wire from the negative terminal of the battery.
2. Remove the front bumper (see "Removal and installation the front bumper and its bar").
3. Squeeze the horn wire harness connector lock…
4. …and disconnect the connector from the horn output.
5. Unscrew the horn mounting nut…
6. …and remove the signal.
7. Install the parts in the reverse order of removal.
[The full article is on the online resource: FordBook.ru]