Instrument Cluster elec problem?(x-post)

Bernie Benz b.benz at
Thu Dec 8 22:50:34 EST 2005


Thanks for the old post, a keeper for sure!

I have a non-wrenching friend with a show room 60K 200Q-20V that has had the
open ground IC problem.  As a result he has, I'm sure, made a very merry
christmas for his independent Audi wrench, who has spent 10 days and
couldn't find the problem.  I fixed it in about an hour.

Merry Christmas!


> From: Peter Schulz <pcschulz at>
> Date: Mon, 18 Jul 2005 17:30:29 -0400
> To: "Beer, Jerald S." <jbeer at>, <200q20v at>
> Cc: s-car-list <s-car-list at>
> Subject: Re: Instrument Cluster elec problem?(x-post)
> Jerry:
> You likely have an issue with the ground plane in the IC.
> Here's a keeper:
> Try whacking the top of the dash just to the left of the fuel gauge...
> If that works, its time to solder ;-)
Didn't ever bother wacking it.  Knock on the wood trim, I've never had this
problem with mine, yet.

> -Peter
> At 03:41 PM 7/18/2005, Beer, Jerald S. wrote:
>> I am trying to chase down what appears to be a short in the instrument
>> cluster (IC). This started recently and randomly would occur. It now
>> occurs all the time.  When the running lights or headlights go on for
>> the first time, the high beams come on also. If I shut off and turn on,
>> headlights or running lights come on properly, but both turn signal
>> indicators remain lit on the dash, and the computer screen for mpg, etc
>> has no lights. I note the high beam indicator also does not work.  All
>> other lights seem good, including light above rear license plate. After
>> pulling the IC and using an old partial IC from a 90 200q,  that the
>> problem seems to be the plug above the fuel gauge. When I use the old
>> IC, no light problem. The pins all look like they line up OK, and I
>> sprayed contact cleaner. My radio recently died, fuses look good, so I
>> am assuming that is unrelated (maybe hidden fuse in radio).  Any
>> suggestions from those more electrically inclined?? The IC is now on
>> Velcro (or should be) I am getting pretty good at getting this thing in
>> and out!!!!Thx.
>> Regards,
>> Jerry
>> 91 200qa
>> _______________________________________________
>> 200q20v mailing list
> 1991 200 20v Q Avant Titan Grey
> 1991 200 20v Q Avant Indigo Mica
> 1991 90 20v Q Red
> 1990 CQ silver (awaiting S2 engine transplant)
> Chelmsford Ma, USA
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