ABS sensor question

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Oct 6, 2005 | 01:50 PM

a4avant99

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ABS sensor question

My ABS light came on. I took the car to a very decent VW/Audi shop. I was told that the rear left ABS sensor need to be replaced. Wanted to save a few bucks. I brought the car back and ordered the sensor. Yestoday, the sensor arrived. I measured the resistance between the two wires for both the new and the old sensors. They are the same ~ 1800 Ohm.

I remamber having read from the forum that a failed sensor should have very different resistance between the two wires. Now, I am in doudt if the old sensor has really failed, and I did not rush to install the new one. But I don't find any other reason to not believe the very reputated shop. Is it possible that a failed ABS sensor has the same resistance as a good one?

I checked part numbers of the new and the old ones. They are the same.

Thanks

Oct 6, 2005 | 01:51 PM

BSK auf Arbeit

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do you have an abs light? if so it might be the abs module that is broken

Oct 6, 2005 | 01:57 PM

a4avant99

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I checked with vag-com also. It is the rear left sensor.

If I understand correctly, rear side is the driver side. If the module is broken. I think I should not be directed to a particular sensor. I have erased the code several times and the same code always come again in within one minute of driving (ABS light on).

Oct 6, 2005 | 06:28 PM

JohnnyP

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I had a similar code....

But it was the front right sensor. I took off the wheel and found that the sensor wire was torn. I reconnected and fixed the wire and the ABS light went off and the ABS worked again.