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Re: Dashboard ifo screen
From: four.rings@MCIONE.com <four.rings@MCIONE.com>
Date: Sunday, February 01, 1998 12:41 AM
Subject: Re: Dashboard ifo screen
>Bill Martin wrote:
>Is anyone aware what would cause the little screen on my 1990 200 Audi
>to go to horizontal lines and no info. It has happened before but only
>in really cold weather. Now it is always there.
>Same exact things is with my 200. Anyone ever found the guilty
>chip/transistor or even a track?
I had this happen on my '91 200q; when the car was started the "OK"
symbol would occaisionally come up as a series of lines. It also happened
when the cooling fan circuit lost the fused ground (only Audi would fuse a
ground circuit!) and the car overheated; I couldn't tell what was alarming,
only that it was red.
When I developed further problems (putting on the high beams illuminated
the turn signal indicators, the turn signals flashed the high beam indicator
and the opposite signal indicator, the dash lights started going off & on,
etc.) I suspected a ground fault & pulled the instrument panel.
Sure enough, there was an intermittent ground on the board. There are
two ground clips which look like computer board jumper blocks. The pins
which engage in these allow the circuit board and the main instrument
cluster to be seperated. The spring contacts inside the jumper blocks had
relaxed and were making an intermittent ground. I built up the pin diameter
with solder and voila! - problem solved. I haven't had the problem with the
warning display since - here's hoping!
'91 200q 245k km