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SHOP ANTI LOCK BRAKE SYSTEM (ABS) SENSORS
The anti-lock braking system (ABS) uses a sensor to monitor the wheel speed and send this information to the ABS computer. The ABS computer uses this information to prevent the brakes from locking during an emergency stop. If wheel speeds are not equal, the computer modulates the anti-lock feature until the speeds are equalized.
Yes, a failing sensor can illuminate the malfunction indicator or ABS warning lamps, and may cause failure of the anti-lock braking system to operate safely and properly.
Typically these sensors will fail as a result of clogging from metallic debris, brake dust or dirt due to exposure to the harsh elements.
An ABS sensor can be visually inspected and the wire winding and sensor harness can be tested for opens, shorts and proper factory specified resistance with an ohmmeter.
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