<<I think I have the same problem with my horn, it's very faint. How do
I check the horn at the horn?>>

Lorraine,

Once every 20 or so years, it could be possible the horn is just plum
done.

The easiest way to determine if it's fried, is to remove the horn from
the Van, ground the base of it on the negative post of a battery, and
touch the positive lead to the hot side of the battery with a test wire.

If it gives you an Aoooga,or Buzzzz, instead of a "Beep, Beep", the
party is over.

Replace the horn.

RC