ABS controller- dangling 2 wire harness

[quk@sievers.com (Phil Payne)]

In message <970304211748_-1004313356@emout20.mail.aol.com> Myke456@aol.com writes:

> While trying to solve an elusive ABS problem, (87 5kcstq) I've found a pair
> of wires that come out of the contoller, that are not connected to anything.
> Unable to find these wires in the Bentley. One is black, the other black/blue
> tracer, they come out of the contoller harness in a black sleeve that runs
> under the metal lip where the front edge of the seat rests, and ends about 6
> inches from the battery. They terminate in a 90 degree rubber harness with a
> "U" shaped clip-which gives the impression it's really suppossed to stay
> attached something.

On an 87 5kcstq?

Interesting.  Are you sure it's black and black/blue, and not black/green and 
black/blue?  The green trace on black is sometimes hard to see ...
 
Anyway, it sounds like the connection for an accelerometer.  They're standard 
on ur-quattros from the MB onwards, but I didn't realise they were fitted to 
5kcstqs.  Anyway, pins 11 and 16 on the ABS controller are connected during 
normal driving and disconnected during heavy braking.  It's a simple mercury 
switch that responds to heavy "G" in the direction of travel.

And, BTW, that's _exactly_ where it's sited on the ur-quattro.  Under the 
back seat, parallel to the battery.  Little black box a couple of inches
square.  Any mounting holes pre-drilled?

--
 Phil Payne
 phil@sievers.com
 Committee Member, UK Audi [ur-]quattro Owners Club