[s-cars] Lamp control module

[Fred Munro]

Igor;

I had a similar problem on my '86 5ktq. It turned out to be an intermittent
contact on one of the taillight bulbs. The bulbs had been in there so long
that the soft lead contacts had worn down and the tension on the spring
contacts in the bulb socket wasn't enough to ensure good connection with
the bulb. Took me a while to track it down since both bulbs tested good and
the bulb socket contacts were clean. Replacing both bulbs solved the
problem.

HTH

Fred Munro
'94 S4


-----Original Message-----
From:	KBATTPO [SMTP:igor at s-cars.org]
Sent:	Wednesday, May 15, 2002 12:06 PM
To:	Audi S-list
Subject:	[s-cars] Lamp control module

Folks,
this is driving me nuts. As of a week or two ago my Autocheck has
starterd displaying the burned lamp symbol. All while driving,
intermittently on and off. Funny I should ask for help on this. I have
hacked the Autocheck a long time ago (for the relayed Euros) and it has
been performing flawlessly for 3 years.
Conditions:
1. All bulbs are OK. And I mean really OK. Impedances tested with a
multimetre and they all light up.
2. The bulb symbol comes ON with IGNITION ON, but while the light stalk
is in the OFF position. This is puzzling. Even if a bulb were out, the
Autocheck should not have noticed it untill the lights were turned ON.
I have tested this im my garage last night by removing one taillight
bulb and while the Autocheck was OK. If I did this with IGN ON but
LIGHTS OFF the Autocheck was happy. As soon as I turned the LIGHTS ON,
the Autocheck had senced the removed bulb. Just the way it was supposed
to work in the first place.

Yet when it is intermittent, it buzzes w/o the lights turned ON, i.e.
when it is not even supposed to otice a burnt bulb if there even were
one burned.

Did anyone have anything like this?

Igor

P.S. I am going to swap my Lamp Control with Sterfan's. If the problem
stays with my car - it's the wiring, if it moves over to Stefan's car -
its the module itself. Yeah, my favourite "how to catch a lion in a
desert" approach.
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