Re: Electrical gremlins (elves?): summary

[Elliott Potter <epotter@abraxis.com>]

The part of the instrument cluster that has the chime sounder is a
separate box that plugs in to the rest of the instrument cluster--it's
modular so that they can use the same cluster with or without the trip
computer.  There are a few tall pins that stick out of the instrument
cluster PCB, and they seem to fit very loosely into holes on the said
box...that could be where the problem is?
--
Elliott

Chris Newbold wrote:
> 
> I wrote:
> 
> > Looks like the Audi Santa, er God, of electricity has come early this
> > year... I've got some weirdness with things driven off the driver's door
> > jam switch.
> >
> > As in most Audis, the driver's door jam switch drives a number of things:
> >   o dome light
> >   o radio on binger
> >   o lights on binger
> >   o alarm
> >   o interrupt power windows (first time door is opened after ignition
> >     switched off)
> >
> > In the last few days, things haven't worked right; at first I figured
> > that the switch must be worn or corroded. However, I've noticed that
> > the failures affect a random collection of the items above.
> >
> > Tonight, for example, the dome light did not go on when I opened the
> > door, but the lights-on and radio-on binger worked, and so did the
> > power-window interrupt. This morning, I had dome lights, but no
> > binger.
> 
> Thanks to all for the replies. Here's the scoop: I had two problems.
> 
> The door switches actually have two contacts (three connections, including
> ground), though they both engage at the same time. A disassembly revealed
> no corrosion, but a thorough cleaning solved the problems with the dome
> light, etc.
> 
> It also looks like there's a bad connection somewhere on the IC PCB,
> which is causing the intermittent and "scratchy" sounding binger. I still
> have to track this one down and repair it.
> 
> -Chris
> 1993 90CS 5sp 72k miles