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How do I know if my ABS controller is bad, and not just something simple like a dirty wheel speed sensor?

April 26, 2017ABS bad controller dirty sensor simple speed wheel

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How do I know if my ABS controller is bad, and not just something simple like a dirty wheel speed sensor?

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If your ABS and/or BRAKE warning lights are on, the problem is most likely a bad ABS controller. A dirty wheel sensor, on the other hand, will make your ABS system behave erratically, but will not cause warning lights to come on. See FAQ 9 for help on cleaning your wheel sensors.