ABS traction control light goes on when I take a curve on 2002 Volvo S60

I want to know the best way to check wheel sensor to find which one is defect I took resistance nothing for front sensor

by in Crucible, PA on October 25, 2010
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2 answers 3 comments
ANSWER by , October 25, 2010
The wheel speed sensor should have resistance when disconnected and checked at the connector, it is best to check them with an oscilloscope but if you jack up the car and spin the wheel it should produce an ac voltage on a voltmeter.
ANSWER by , October 26, 2010
Pat is right, an oscilloscope is best for checking this. Have you checked for any codes in the ABS module?
COMMENT by , October 26, 2010
I don`t have scanner for ABS only for engine .Can I make blink code in dash?
COMMENT by , October 27, 2010
No, you'll need a scan tool that can read the codes in the ABS module. This car has a very complex computer system, I suggest you take it to a Volvo shop and have them read out all the diagnostic codes in the entire system and check to see how many software updates are available for the vehicle.
COMMENT by , October 27, 2010
thank you my problem was tone ring on rear wheel were rusty