Since automobiles were invented, a lot has changed in terms of design and technology. Modern vehicles are far more sophisticated and complex with a myriad of car parts. One such component, unique to the modern vehicle, is the Anti-lock Brake System or ABS. This system consists of ABS sensors, which if failed, would need replacement. Let’s find out more about these sensors in this blog.
What is the ABS Speed Sensor and How does it work?
The Anti-lock Brake System of your car uses these sensors to detect the rate at which different wheels are rotating. The ABS speed sensors help the system to control the brake pressure in case the wheels lock while applying the brakes. These kinds of sensors are known as Hall-effect or reluctance components.
The ABS speed sensor views the tone ring attached to the wheel or the axle to create a waveform. This wave is then interpreted by the ABS controller to determine the amount of brake pressure required. If you drive an old pickup truck or any other vehicle with three-channel ABS systems, each front wheel will have its own sensors while the rear axle has only one sensor. However, in the four-channel systems, every wheel has an individual sensor.
It’s important to remember that even if only one sensor fails, the entire system becomes non-operational. This means that there would be no anti-lock control in your car. In such a situation, you should take your car to one of our expert mechanics or call them home and get your car thoroughly inspected.
Why do you need ABS Speed Sensor Replacement?
If one of the sensors isn’t working, the entire ABS isn’t working. And a non-functional Anti-lock Braking System means that you can’t simultaneously brake and steer past, say an obstacle on the road. A failed ABS increases your chances of an accident as you might lock up the brakes in case of an emergency. So, it’s advisable to get the ANS speed sensors replaced as soon as possible if they fail.
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When do you need to Replace ABS Speed Sensors?
The biggest indicator of a failed ABS speed sensor is the ABS warning light on your dashboard. If the light turns on automatically when you start the car and then remains lit permanently, it means you should get the ABS speed sensor replacement done. Another indication is if the ABS systems don’t kick in and the brakes lock up on difficult or slippery terrain or when faced with obstacles like gravel or ice.
How is ABS Speed Sensor Replacement done by our Mechanics?
If you bring your car with a failed ABS speed sensor to one of our mechanics, they will inspect and replace it in the following manner
- Raise the vehicle on jack stands and remove the tyres
- Remove the defective ABS Speed Sensor and replace it with a new one
- Reinstall the tyres
- Lower the vehicle from the jack stands
- Recheck the ABS
- Road test the car
Driving with a non-functional ABS can prove dangerous particularly on slippery surfaces or during emergencies. If the ABS warning light is illuminated or you suspect that the ABS isn’t working, contact one of the expert mechanics in your area on Swezo. You will get multiple quotes in just a few minutes. And our mechanics can come to your house to inspect and replace the ABS speed sensors if required.