'94 100 stays in 3rd

Kent McLean kentmclean at comcast.net
Fri Jul 17 11:32:37 PDT 2009

I wrote:
> He noticed a connection coming off the TCU, with a brown and a
> gray/black? wire.  Is that a diagnostic connection? Or does it go
> somewhere special?

More info...

He found two loose black wires that go into a connector that
goes to the TCU.  The TCU-side connector has a brown/red wire
where the black wires go.

I know the Audi standard is brown wire is ground. But does Audi use
black wire for ground, too?  I'm thinking so, since it goes to a
brown (and red) wire.

Does anyone know what the black to brown/red wires do?
(Does anyone have a wiring diagram for a '94 100 S?)


Kent McLean
1999 A4 Avant, V6 Tiptronic
1991 200 TQA #3, with mods
1990 V8 w/5-speed and other mods
gone: '91 200 TQA x2, '94 100 S Avant, '89 200 TQ "Bad Puppy"

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