New owner of 100 CS questions (round 2)

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Oct 20, 2014 | 09:51 AM

John Hopkins

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New owner of 100 CS questions (round 2)

I've been working through a lot of the little things that don't work on this wagon. I'm down to just a few now.

Sunroof controls do nothing
Cruise Control does nothing
All of the interior lights but the driver's floor do not work

I've checked the fuses in the cabin and all are good.

Any ideas?

Oct 20, 2014 | 11:22 AM

marcogyver

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1. On my A6 if I hold the key turned to the lock position the windows and roof will close, does the 100 do the same? I was thinking if you crank the sunroof open a little and use the key to close to verify if the motor and electronics are good.

2. Cruise control, think a common fault was vacuum lines in the engine compartment but check out this <A HREF="http://forums.quattroworld.com/s4s6/msgs/211949.phtml">LINK</A> for additional issues.

3. The drivers foot light should is controlled the same as passanger foot. Does that come on?

Last edited by marcogyver; Oct 20, 2014 at 11:25 AM.

Oct 20, 2014 | 04:06 PM

John Hopkins

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Quote:

Originally Posted by marcogyver

1) No, I think the sunroof on these is JUST the control on the roof.
2) I'll check that out. Thanks.
3) I need to check out the bulbs in the car, but I can't imagine that ALL but one of the interior bulbs are out.

Oct 23, 2014 | 04:19 PM

marcogyver

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According to diagram the 2 front footwell and 1 dome light are pretty much tied together but share a couple of contact points. Does the dome turn on with the switch to constant on but not with the door? The lighted vanity mirrors use the same 12V but different grounds, do they work?

Oct 23, 2014 | 05:10 PM

John Hopkins

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Quote:

Originally Posted by marcogyver

Actually, the passenger vanity light does work. None of the others with override switched do anything at any switch position though.

Oct 24, 2014 | 12:21 PM

marcogyver

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The center dome light when switched to constant on takes power (12V and Ground) from the black connector at connector station I. If you find this connection you can measure 12V from pin 1 to pin 3. Knowing the passenger vanity light works says the 12V should be good because it bridges from the center dome light. I would start there.