Horn Test/Replacement

Remove the inner fender (see FRONT INNER FENDER REPLACEMENT ).
Disconnect the 1P connector (A) from the horn (B).

Fig 1: Disconnecting 1P Connector From Horn
Courtesy of AMERICAN HONDA MOTOR CO., INC.

NOTE: The illustration shows the low horn of the '03 model.
Remove the mounting bolt and the horn.
Test the horn by connecting battery power to the terminal (A) and grounding to the bracket (B). The horn should sound.

Fig 2: Connecting Battery Power To Terminal And Grounding To Test Horn ('03 Model)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 3: Connecting Battery Power To Terminal And Grounding To Test Horn ('04-'06 Model)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
If it fails to sound, replace it.