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Old 12-30-2012, 01:33 PM   #18
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Join Date: Nov 2008
Location: Minneapolis/Milwaukee
Posts: 3,129
My Ride: 325i
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Bad wheel speed sensor.
Scan the car to see which is throwing error and clean it with a wire brush. Might as well clean all of them while your at it. If cleaning doesn't work just replace the sensor. Takes 5 min .
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