July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Repair and Diagnosis: Electrical: Horns: Inspection

Test the horn by connecting battery voltage to the 1 terminal and ground the 2 terminal.
The horn should make a sound. If the horn fails to make a sound, replace it.

Fig 1: Testing Horn Operation
Courtesy of KIA MOTORS AMERICA, INC.