Horn Test/Replacement

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

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

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