ABS/brake woes

StevieG

Member
2001 1.4 AUA with 107k. A couple of weeks ago I heard 3 loud beeps (frightened the life out of me) as I was driving and the dash warning below:
20211117_235832.jpg


with the DIS showing a flashing brake shoe symbol (not showing in photo)

I swapped out discs and pads, thinking this was a pad wear issue. It was a little surprising that there were still several mm of pad material left, but thought this was perhaps a super-conservative system.

After swapping out the pads and discs the alarm reappeared after 25 miles.

I have done a scan and have these codes:

20211118_104143.jpg

3 Faults Found:
01130 - ABS Operation
27-10 - Implausible signal - Intermittent
01542 - Yaw Rate Sensor (G202)
57-10 - Electric Circuit Failure - Intermittent
01542 - Yaw Rate Sensor (G202)
27-10 - Implausible Signal - Intermittent

The alarm resets on powering down and restarting ignition/engine. Typically, I can drive a few yards or a few miles and I hear grinding and noises from a brake caliper as though the ABS is operating with some retardation. Then the alarm sounds and I can proceed as normal ( though with the dash alarm showing).

This seems, from the forum posts, to point to a faulty yaw sensor. But I wondered if there were other common A2 faults that could provoke this combination of symptoms and fault codes.

Stephen
 
Sorry didn't think you needed any more comments as your picture of VCDS clearly stated the yaw sensor was faulty.
 
Sorry didn't think you needed any more comments as your picture of VCDS clearly stated the yaw sensor was faulty.
Actually, impressed with Audi for providing diagnostics that correctly identify the faulty components. I'm more used to Land Rover codes so cryptic that years of experience are needed to decipher
 
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