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Diagnosing: Anti-Lock Brake System (ABS) Sensor

What does an Anti-Lock Brake (ABS) System do?

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.

Will a malfunctioning Anti-Lock Brake System (ABS) Sensor affect vehicle operation?

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.

What are the common causes of Anti-Lock Brake Sensor (ABS) Sensor failure?

Typically these sensors will fail as a result of clogging from metallic debris, brake dust or dirt due to exposure to the harsh elements.

How to determine if the Anti-Lock Brake Sensor (ABS) is malfunctioning?

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.

Advantages of using a NAPA BRAKES Echlin Anti-lock Brake System (ABS) Sensor Replacement Unit are:
  1. Complete control of the manufacturing process from componentry to finished product to ensure long-life.

  2. Engineered to OE specifications and fitment to ensure a precise ABS signal and easy installation.

  3. NAPA BRAKES ECHLIN ABS sensors are backed by a 3 year/36,000 mile warranty.

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