Honda Odyssey Service Manual: Sound Pattern of the Buzzer

Power ON Indicator/POWER SAVE Indicator

Disc Brakes

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Honda Odyssey Service Manual > Body Electrical: Horn Test/Replacement
Remove the front bumper. Disconnect the 1P connector (A) from each horn (B). AB Test the horn by momentarily connecting battery power to the terminal (A) and grounding the bracket (B). The horn should sound. AB If it fails to sound, replace it. Install the horn in the reverse order of removal. ...