[s-cars] pulling codes - link to write up

[Theodore Chen]

--- Keith Maddock <keith.maddock at gmail.com> wrote:
> > 
> > how do you troubleshoot ABS problems with a '92 S4?  i can't find anything
> > about dumping codes from the ABS controller on a '92, and in fact, SJM's
> > website says they weren't equipped with self-diagnostic capabilities until
> > '94.  is that what other people have found?
> > 
> > my ABS light goes on after driving a short distance.
> 
> Check to see if it always comes on when you exceed a set speed.
> or
> Check to see if it always comes when you decelerate back down to a set speed.

i don't know about a set speed.  i do notice that it comes on shortly
after the car gets going.  it doesn't come on when the car is just sitting
with the engine running.

i checked the wheel sensors some time ago.  i cleaned them and pushed them
back in, but i didn't do them all at once (i did it when i had the wheels
off for one thing or another).
 
> Generally a fault that shows up after a certain amount of time running
> will be a wheel speed sensor fault - something that the system must
> test dynamically.
> 
> If the latter of the two checks above is true, then you might have a
> wheel speed sensor that has backed out of its press-fit slot.  Push
> then all back in as hard as you can and then see if you still get the
> code.

push the sensor flush against the ABS reluctor wheel?

> also check for Brooklyn tumbleweed I guess , or any other thing that
> might be interfering with the WSS:-D

brooklyn tumbleweed?  you mean trash?

-teddy



		
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