Instrument cluster dead: update and help

[Damien Gaboury]

Car: 90SQ 1993, V6-12V 2.8L

Going to work this morning, I looked at my instrument cluster (dash) and
discovered that it was dead. All instruments were dead. During the lunch
time, I have performed some checks and bought some new fuses. Effectively,
it was the fuse. I replaced it, and it burned out again. Looking at the
situation as a scientist, I realized that the fuse burn out when and only
when I engage the reserve speed (manual). Ouf...

That a good observation, because, as every bodies known, resolving
electrical problems on Audi  is commonly expensive in time and money.

I have to mention again that I don't have yet the Bentley manual for this
car 90 1993 (it will be available soon). Anyway, any gurus have some tips
for me ? As a way to look up, I know that I have open-circuit problems with
a wire harness in my truck (plate light fuse burned, central looking doors
operate erratically when I open the truck.). That sounds good considering
that the reverse lights use that wire set. However, I have problem to figure
out the electrical link with the instrument cluster and the reverse lights.

Any help please before the week-end. At the point, I try to use only forward
speed.

Damien Gaboury, PhD
Scientifique de recherche
Consortium de Recherche en Exploration Minérale (CONSOREM)
Université du Québec à Chicoutimi
555 Boul. de l'Université, Chicoutimi, Qc, Canada, G7H 2B1
e-mail: damien_gaboury at uqac.uquebec.ca
Visitez notre site web: http://depcom.uqac.uquebec.ca/consorem