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ORIGINAL: markmsa
ORIGINAL: Andy 944 Had a similar issue with mine, turned out the micro switch at the base of the handbrake was breaking up and shorting out .....
Will take a look at the micro switch as well as all the sensors and check the abs relay too I think.
There are plenty of posts about ABS system on here - it's a simple system but a source of hard-to-find problems. Does the pump self test at approx 5mph? You should be able to hear it. A failure after that point is usually sensors I think. Sensors can look and test OK and still be faulty. They can also be very hard to extract. There is a test procedure for the ABS relay somewhere on the internet.
 

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