ABS Wheel Speed Sensor

Modern cars and trucks use a variety of sensors to send data from their components to their computers. These sensors regulator everything from your speedometer readout to the way your anti-lock braking system (ABS) functions. Wheel speed sensors, aka ABS sensors, are located on the axles of all ABS-equipped vehicles. Look for this sensor on your wheel hubs, near the brake rotors. You’ll find the rear wheel speed sensor mounted on the rear axle housing or wheel cylinder. The ABS sensor is a crucial part of the braking system. Without a functioning ABS wheel speed sensor, the ABS system will fail to operate properly.

At FridayParts, you can source an extensive selection of quality wheel speed sensors for your vehicles of various brands like Ford, Toyota, Honda, Nissan, BMW, Mercury, Volvo, Isuzu, Hitachi, Sany and more. Our selection of wheel speed sensors is built to rigorous standards, providing you with precise speed readings, reliable ABS performance, and long-lasting durability — so you can drive with confidence knowing your safety systems are always working as they should.

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What Is An ABS Wheel Speed Sensor?

The ABS (anti-lock braking system) uses speed sensors attached to the wheel end or hub assembly to monitor the vehicle's wheel speed. This data is processed by the ABS control module, which determines the appropriate amount of braking pressure for each wheel to prevent wheel lock-up or traction loss. The ABS wheel speed sensors may also be used to calculate your vehicle's speed and feed this information to your speedometer. Over time, the ABS sensors on your vehicle may wear out and fail to send accurate signals to the ABS module or computer. Shop high-quality wheel speed sensors at an affordable price from FridayParts.

How Does A Wheel Speed Sensor Work?

The wheel speed sensor “sees” when your brakes are locked up. When your wheels are locked up, your tires fail to produce enough friction to stop your vehicle. When the sensors notice your locked-up brakes, it sends a signal to your vehicle’s ABD module, which then releases a small amount of brake pressure and allows your tires to maintain friction against the road surface.

Once activated, the ABS module sends many high-frequency pulses from the speed sensor to the brakes. As a result, the ABS system work well because far more friction are available to stop your vehicle when the wheels are rolling rather than sliding and skidding helplessly across the road’s surface.

Common Reasons Your Wheel Speed Sensors Fail

Like many electrical parts on vehicles, the wheel speed sensors are susceptible to moisture, oxidation, heat and other wear and tear during normal operations. Another reason lies in improper installation. A third factor is the poor electrical connector maintenance. Once it fails, you may notice the following signs of a bad wheel speed sensor:

• ABS fails to modulate the brakes on wet, slick or icy road surfaces
• Your vehicle’s check engine light or ABS light comes on and stays on

So, it’s important to check your wheel speed sensors regularly and replace it withtop-notch speed sensors when necessary. If you couldn't find the exact part you need, please feel free to contact us. Our friendly parts specialists are standing by to help with any og your parts needs.