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1999 Lexus RX300 Question: ABS Pulses

 

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pfsoter, 3.0L V6, Swisher, IA, February 25, 2011, 13:45
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129,000 miles, ABS light comes on and pulses when ever brakes are applied no matter what the road conditions. AT highway speed the light comes on with out using the brakes. once I slow to city driving again the light goes out.

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  • Answer #1

    DaveJHM February 25, 2011, 23:29
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     Master

    The ABS light is coming on because one of your wheel speed sensors is failing. If it reads "0 mph" when the rest of your sensors are at 25-30 mph, for example, the module thinks one of the wheels are locked up, and operates the ABS system pump motor in turn. Have the wheel sensors checked.

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