What the hell?

[Eric S]

Tony,

I HAVE run into this, on a VW of course, but I cannot see why they would
design that circuit differnetly on your UrQ.

On the Sciroccos and rabbits of the same vintage, because of the isolation
of the rack, and suspension stuff by rubber, the column is not grounded
proper, so VW added a ground wire that comes out right at the u-joint boot
in the engine bay at the firewall, and it grounds to the firewall with a
small sheetmetal screw.  These are notorious for working themselves
loose....I suppose it be worth a quick glance for you to see if your UrQ
has the same thing.

-- 
Eric
www.vintagewatercooleds.com

1981 Scirocco S (TDI swap project)
1988 Audi 90 Quattro
1990 Corrado TDI
1991 Cabriolet (2.0 crossflow 8v project)

Tony Lum said:
> Hey all-
>
> I was troubleshooting why my horns aren't working anymore on the ur-q and
> have discovered that the splined steering shaft on which the steering
> wheel
> is mounted is now longer grounded to the chassis!  Its grounded only when
> the steering column is locked.  Naturally this makes the horn button
> useless.  The wiring and relay are good-if I ground the horn button wire
> directly to the chassis with the key on, the horns work perfectly.  The
> horn button (which checks good) switches the horn contact to the wheel
> adapter (MOMO) which is bolted to the steering shaft.  I always thought
> that the shaft would get grounded by the support bearings but this is no
> longer the case.
>
> Am I missing something here?  Anybody run into this before?
>
> Frustrated Honker,
>
>
>
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