Four Symptoms of a Faulty ABS Wheel Speed Sensor

 

The ABS sensors assess wheel speed, and if one of them fails, it might cause serious problems. Here are several frequent indicators that your sensor is malfunctioning.

The ABS wheel speed sensor serves a variety of purposes, making it an important component of your vehicle. You may notice a number of signs when one's condition begins to deteriorate.

A failed MOT test can also be caused by a faulty wheel speed sensor, therefore get the damaged wheel speed sensors replaced by a qualified mechanic before scheduling your next MOT testing service.

 

An ABS warning light appears on your dashboard as the most prevalent indicator of a faulty ABS sensor. You could also notice a pulsing brake pedal or a full failure of the anti-lock brake system while braking.

 

If you carry out a MOT history checker online for your car and discover that a prior failure was due to the ABS light being on, it's possible that the problem was caused by broken wheel speed sensors.

 

As you can see, there aren't many indicators that an ABS sensor has failed. This is because, in order to avoid accidents, the ABS control module will illuminate the ABS warning light and deactivate the system. Here's a more in-depth look at the most prevalent signs of a faulty ABS wheel speed sensor:

 

1.     Warning Lights - Illuminated A number of crucial lights on your dashboard warn you of impending danger. The ABS light is likely one of the first signs of problematic ABS wheel speed sensor symptoms when the ABS wheel speed sensor fails. It might merely cause the ABS warning light to illuminate at first. When the other systems stop working correctly, the traction and stability control warning lights may illuminate as well. If this occurs, go online and look for car repairs near me to schedule an appointment with a certified technician. Defective ABS wheel speed sensors might cause the speedometer to cease registering in rare situations.

2.     Pulsating Brake Pedal - While braking, the ABS sensors detect the speeds of each wheel, and if one of the ABS sensors fails, it will read the incorrect speed on one or more wheels. The ABS control module will be deceived into thinking the vehicle is sliding on a slick surface as a result of this. Because this is an unsafe, search online for car services near me and schedule an appointment with a repair garage as soon as you notice a pulsing brake pedal. The ABS and traction control will activate as a result, and you may notice a pulsing or pumping brake pedal while braking.

3.     Anti-lock Brakes Failure - When an ABS wheel sensor fails, the anti-lock brakes become inoperative. When a malfunction is detected, the system sends out an alarm, and the ABS warning light illuminates. The electrical control module of the car then ceases receiving crucial data from the sensor. This information is used by the computer to evaluate if the wheels are locking up and need assistance. Because the ABS system has no idea what's going on, it shuts down until the problem is fixed.

4.      Loss of Traction or Stability Control - Other issues, such as stability control, traction control, roll stability, and hill-start assist, might all be lost. The computer turns off these systems when the sensor ceases delivering information. Even if the ABS light is turned off, you may have troubles. The ABS wheel speed sensor might be to blame if you have trouble maintaining traction in bad weather or notice handling concerns when braking rapidly. Damaged electrical connections between the sensor and the ECM might also be to blame.

 

Function of an ABS Wheel Speed Sensor

The ABS wheel speed sensor is often known as the ABS brake sensor or simply the ABS sensor. It is a vital aspect of the ABS, whatever it is named.

Most new cars are equipped with an anti-lock braking system (ABS). ABS wheel sensors detect the rotation speed of the wheels and are mounted to the wheels or axle. A toothed ring and magnet, encased in a coil, are found in most ABS sensors. When the magnet and the ring make contact, an electric field is created, which is converted into a signal and supplied to the ABS controller.

The controller regulates the speed of each wheel or axle from here. This data is subsequently sent to the Engine Control Module.

The ABS is initiated when the ECM detects a wheel that is locking up. It runs at such a high pace that it frequently emits a grinding sound along with a throbbing feeling.

The ABS sensor helps manage the movement of the vehicle in risky conditions if the vehicle also has traction control. When traction is lost, one wheel's speed differs from the others, forcing the mechanism to engage.

The computer causes problems by reducing the amount of braking force given to the wheel. When this force is reduced, the wheel is able to acquire grip and revolve normally once again. The stability control systems in modern vehicles are also controlled by these sensors.