[s-cars] Re ABS Problem

[Tom Green]

Dan,

It makes you wonder about the advice you are getting when it is
contradicted by knowledgeable folks.

I agree with Shokan that this is no place to start.  Bentley seems to
agree that looking at some connections and relays is called for first
in the troubleshooting matrix--ground and pump relay for the hydraulic
sensing unit.

It sounds like the joint replacement guy is off the hook as far as  
displacing
a sensor goes.  They usually don't tear up anything else doing that job.
The mechanic may be referring specifically to your sensors not being
removable.  Depending on where you are, corrosion of 10 year old
parts can make them not reusable.   Otherwise, they can be removed
and replaced.

All this  assumes the brake system itself is operating properly, with  
all
fluid levels correct.   I have inferred from your mail that you have  
continued
to operate the car, so I have assumed you are confident that the ABS and
BRAKE lights are both caused by a problem in the ABS and not the brake
system.

Tom








> Dan Slagle writes:
> Dear S-Car Listeners:  My ABS and Brake light has been on for a couple
> of weeks.  Prior to this, it was intermittent, i.e. come on for a day,
> and then go off, with the brake light coming on at the same time.  I
> recently had the Driver's Outer CV Joint and the Boot on the Passenger
> Side replaced.  I had a mechanic inspect the sensors this AM, and they
> are not loose. He connected his laptop to the car, and the On Board
> Diagnostic VAG reading - Code 00301 - "ABS return flow  
> intermittent" The
> mechanic said that the ABS control unit needs to be replaced.  I asked
> about a dirty or malfunctioning sensor, and he said that there  
> would be
> a fault code if it was a sensor problem {thinking that perhaps the CV
> Joint replacement had something to do with this problem}. He also  
> claims
> that you can not remove a sensor to inspect it, without destroying it.
>
> Today, I called Shokan looking for a Control unit, and they said that
> based on their experience, it is not the problem.  Every unit they  
> have
> sold, the customer has come back asking to return it, because it is  
> not
> the problem.  I am looking for any BTDT.  Thanks in advance for your
> time.
>
> Dan
> 1995.5 S6
>
>
>
>
>
>
>
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> End of S-CAR-List Digest, Vol 35, Issue 33
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