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Faulty ABS Wheel Speed Sensor and How to Check MOT History of a Car

 

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If you own a modern car, it's likely equipped with an anti-lock braking system (ABS) that uses a complex network of sensors to detect and prevent skidding. The ABS wheel speed sensor is a crucial part of this system that monitors the rotation speed of each wheel and sends this information to the ABS control module. Unfortunately, like any other car component, the ABS wheel speed sensor can fail or malfunction, leading to potential safety issues and expensive repairs.

In this article, we will discuss the causes, symptoms, and solutions of a faulty ABS wheel speed sensor. Additionally, we will introduce you to the "Check MOT History" feature, a useful online tool that can help you check the MOT history of any UK registered vehicle.

Causes of a Faulty ABS Wheel Speed Sensor

The ABS wheel speed sensor is a small electronic component that is exposed to harsh conditions such as temperature fluctuations, moisture, and vibrations. Over time, these conditions can cause wear and tear on the sensor, leading to various problems, including:

1.      Damage to the sensor wiring: The sensor wiring can be damaged due to road debris, corrosion, or exposure to heat, causing the sensor to fail.

2.      Sensor contamination: The sensor can become contaminated by dirt, debris, or brake dust, affecting its performance.

3.      Sensor misalignment: The sensor can become misaligned due to an accident or improper installation, causing it to read the wrong wheel speed.

Symptoms of a Faulty ABS Wheel Speed Sensor

If your car's ABS system is not functioning correctly, you may experience the following symptoms:

1.      ABS warning light: The most common symptom of a faulty ABS wheel speed sensor is the ABS warning light turning on in the dashboard. This light indicates that there is a problem with the ABS system and requires immediate attention.

2.      Loss of traction control: If the ABS wheel speed sensor is not working correctly, the car's traction control system may also be affected. This can cause the wheels to slip or lock up, making it difficult to control the car.

3.      Uneven braking: A faulty ABS wheel speed sensor can cause the car to brake unevenly, with one wheel locking up before the others. This can cause the car to swerve or skid, making it unsafe to drive.

Solutions for a Faulty ABS Wheel Speed Sensor

If you suspect that your ABS wheel speed sensor is faulty, you should take your car to a qualified mechanic for diagnosis and repair. Depending on the severity of the problem, the mechanic may recommend one of the following solutions:

1.      Sensor replacement: In some cases, the sensor may need to be replaced entirely. This can be a time-consuming and expensive process, depending on the location of the sensor and the make and model of the car.

2.      Wiring repair: If the sensor wiring is damaged, the mechanic may be able to repair or replace the wiring, which can be a more cost-effective solution.

3.      Sensor cleaning: If the sensor is contaminated, the mechanic may be able to clean it, restoring its functionality.

Check MOT History

If you're buying a used car, it's essential to check its MOT history before making a purchase. The MOT history check report will give you detailed information about the car's MOT test results, including the date of the last test, the test center’s name, and the test's outcome.

The Check MOT status feature is an online tool that allows you to access this information quickly and easily. To use this tool, you will need the car's registration number and make.

Once you have entered this information, the tool will generate a report that includes the following information:

1.      MOT test date and mileage: The report will show the date of the car's last MOT test and the mileage at the time of the test.

2.      MOT test result

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