Horn Test/Replacement

Remove the front bumper (see FRONT BUMPER REMOVAL/INSTALLATION ).
Disconnect the 1P connector (A) from each horn (B).

Fig 1: Identifying Horn 1P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Test the horn by monitarily connecting battery power to the terminal (A) and grounding the bracket (B). The horn should sound.

Fig 2: Identifying Grounding Bracket And Terminal
Courtesy of AMERICAN HONDA MOTOR CO., INC.
If it fails to sound, replace it.