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Re: [T3] Horn


> the steering column. I felt down the whole column to see if there was a hole
> for it to come out but didn't find one. I also looked inside the horn ring
> to see if the wire should go thru one of the holes of the ring like some
> other wheels I've put on in the past. No place for them to go all the way
> thru. I suspect this wheel and column aren't original since the ignition key
> doesn't match the door keys so I may have a newer column than original? I
> looked at the Bentley and it shows vagely that it runs out with the rest of
> the wires but how does it get there? Do I need to run a feeler wire to find
> a hole I don't see? Any recommendations? Tks,
>

Once I read a Webpage (I forgot which one) that provided details diagrams of
how the horn works, AND, I think Jim also described it in the past.  IIRC,
the horn system always has electricity going through it and when the horn
button is engaged it grounds the system closing the circuit and thus causing
the horn to work.  The steering shaft actually works as a grounding.  The
shaft itself is connected to the steering box via a steering coupler (the
steering coupler is rubber or another non-conductive material).  The coupler
prevents the shaft from being grounded to the chassis (the steering box) so
to continue the grounding effect, VW added a cable that goes from the
steering shaft, around the coupler and connects back to the other side (the
steering box side).  Mine was broken when I replaced my coupler, so when I
made hard turns (i.e. Full lock) that cable (which is exposed - kind of like
the braided negative battery cable) touched parts on the chasis and the horn
used to go off on its own.

So, in short, check the cable.  Also, the steering has a metal ring that
touches a plate on the side of the steering shaft, if these are dirty, the
ground contact is not happening.

I hope this helps.

Petri
71 Notch

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