An anti-lock brake system, ABS, is a system that is designed to keep drivers from locking up the brakes or applying too much pressure on the brakes. Contrary to belief, an ABS doesn’t actually stop your vehicle faster than a traditional brake system. However, it does enable drivers to have control over their vehicle, providing you the ability to possibly steer out of the way of a potential accident. So, why is your ABS light illuminated on your dash? Let’s look at some common reasons why.
Reasons Why Your ABS Light Is On
An illuminated ABS light on your dash is a sign that something may have gone wrong with your system, which requires an inspection. The most common reasons why the light is on include a malfunctioning ABS module, low levels in the fluid reservoir, broken wheel speed sensors, or simply that the system is off. Let’s look at these reasons in detail below.
1. Low Levels In The Fluid Reservoir
Your brake system is hydraulic, which means it will use the power of a cylinder pressing against a fluid to ultimately close your brake pads and bring the vehicle to a stop.
All drivers need a consistent, constant level of fluid in their brake system. However, if there is a slow leak or the fluid is able to evaporate off, the amount of fluid will drop. In this event, your brakes will not be able to operate properly. Your computer can typically detect this with sensors, resulting in an illumination of the ABS light.
2. The System Is Turned Off
You may have the option to turn your traction control or ABS on or off. When the system is turned off, it will usually turn on the indicator light on your dash to warn you that this safety feature is not currently working.
If only your ABS light or traction control is on, there’s a good chance the system may have been turned off by accident. Check to see if you accidentally bumped the switch and reference your owner’s manual if you are unsure of where it is located.
3. Broken Wheel Speed Sensors
Wheel speed sensors are a piece of equipment communicating with your computer about how fast each wheel turns independently. If the computer detects an anomaly in these speeds, your traction control system will make adjustments or shift power to different wheels in order to compensate.
If a speed sensor is dirty or stops working, it will typically disable your ABS and/or traction control systems until either the vehicle is restarted or the problem gets resolved.
4. ABS Module Malfunctioning
Your ABS shares some important components with another system inside your vehicle. This is the traction control system that is designed to keep all four wheels on the ground, rolling as smoothly as possible. If the system detects one wheel spinning erratically, it will cut off the power from the engine until stable traction is established again.
This is designed to keep you from skidding out of control when accidentally applying too much pressure. However, the ABS and traction control do share the same control module and self-diagnostic system and occasionally they can interfere with one another.
Ascot Automotive Specialists In Flagstaff, AZ
Ascot Automotive offers an extensive array of auto repair solutions to address every issue your vehicle may encounter. From routine maintenance to intricate repairs, our adept technicians possess the expertise to keep your vehicle running smoothly. Contact our experienced team today!
