Failure diagnosis procedure when the electric horn does not work
The electric horn does not work
Turn on the ignition switch, and
toggle the steering lamp to check
the work of steering lamp
The steering lamp does not work or the
light is pale
The light of the steering lamp is bright
The electricity supply of storage battery is
insufficient or the wire from the storage
battery to the ignition switch is broken or
short-circuited
The electricity supply of
storage battery is normal
Remove the power lead from the power terminal of
electric horn, and touch the power lead with ground
earth quickly to check the sparkle
Sparkle appears when touching
Connect the power lead of the electric horn, use the
screwdriver to contact the non-power terminal of electric
horn (to the terminal of button) with the ground earth
The power lead from the
ignition switch to the
electric horn is broken
The electric horn sounds after
contacting
The electric horn does not
sound after contacting
The internal contact of horn
button is in bad contact or the
lead from the electric horn to the
button is broken
Adjust the volume and tone of the electric horn
The electric horn still does not
sound after adjustment
The sound of the electric horn returns
to normal after adjustment
The electric horn is
damaged
The electric horn is
adjusted improperly
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