My relay was corroded internally.  Looked good on the outside.  I replaced
it with a Bosch unit I got from an BMW at a Junkyard for $2.  Also my spring
contact in the steering wheel was pretty week.  A spring from a writing pen
did the trick perfectly.
Peter S
>
> you might try popping the button off the steering wheel, and
> checking the contacts for the brush.  if corrosion gets in
> there, it breaks the circuit and stops the horn from 'tooting'.
> of course a quick fix for not 'tooting' would be to eat more
> beans...  :)
>
> > I'm trying to fix my non-functioning horn.  It worked before
> > parked for
> > winter.  Here's what I found out last night.  The
> > purple/yellow wire
> > connected to the horn is good.  The horns have a good ground.
> > The button
> > works.  The wire going from button to relay is good.  The only
> > wire/connection that is of unknown function is the
> > purple/black wire going
> > to the relay.  This wire doesn't ground out and doesn't appear
> > to have any
> > voltage.  It appears this should be a 12v+ lead, is this
> > right?  If so,
> > I'll have to patch it.
> >
> > Andy L.
> > '70 Spit
> >
> >
>
>
 
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