Antilock Brake System Light (ABS Light On? Do This Now)

‍Have you ever wondered why your Antilock Brake System (ABS) Light is on? Well, we got you covered.

The antilock brake system (ABS) is an essential safety feature in modern vehicles, designed to prevent wheel lock-up during heavy braking and enhance vehicle control on slippery surfaces. However, when the ABS warning light comes on, it signals a potential problem that needs your attention.

Here are a few steps you need to take when your Antilock brake system light is on, which includes:

Check the brake fluid level
Inspect the fuses
Examine the wheel speed sensors
Check the ABS controller

In this comprehensive guide, we discuss the meaning, safety implications, causes, and troubleshooting steps for the antilock brake system light.

Table of Contents

What is the ABS Light?

The ABS light is an icon on a vehicle’s dashboard that alerts the driver to a potential issue with the antilock braking system.

This safety feature prevents the wheels from locking up during heavy braking, allowing the driver to maintain control of the steering system.

The ABS light, usually yellow, amber, or orange, should come on briefly every time you start your car as part of a system check.

If the light stays on, it means that something isn’t working correctly, and the system has been shut down.

Is it Safe to Drive with the ABS Light On?

When the ABS light is illuminated, it indicates a problem with the anti-lock braking system. While regular braking is not affected by the ABS light, driving without a functioning ABS system can be risky.

This system aids in controlling the vehicle during hard braking, and without it, you may experience reduced stopping power and control.

It is generally safe to drive cautiously with the ABS light on, but it is essential to have the issue diagnosed and fixed as soon as possible to ensure your safety and the proper functioning of your vehicle.

Causes of the ABS Light Coming On

There are several reasons why the ABS light may come on, some of which include:

A blown fuse for the system
A wheel-speed sensor that is damaged or covered by road grime
A broken wire between the sensors and the ABS controller
An ABS controller that has stopped working
A defective hydraulic pump

Each of these issues can impact the functioning of the antilock brake system, leading to the ABS light being illuminated.

Defective ABS Module or Wirings

A common cause of the ABS light coming on is a defective ABS control module or corroded wires. The module can develop problems over time, and the wiring may also be at fault.

Corrosion on the cables can hinder communication between the ABS module and speed sensor, resulting in the ABS light staying on.

Bad Wheel Speed Sensor

A wheel speed sensor measures the speed at which the wheels are rotating and sends this information to the vehicle’s controller. If the sensor fails, the controller will not receive accurate data, causing the ABS light to come on.

The sensor’s proximity to the brakes and exposure to high heat can cause damage over time, as can metal shavings and other debris from the brakes.

Defective Hydraulic Pump

A defective hydraulic pump can also cause the ABS light to come on. This pump is responsible for forcing brake fluid through the cylinder, where it is supplied to the brakes.

If the pump stops working or the hydraulic system’s valve malfunctions, the ABS light may be triggered.

Low Brake Fluid

Low brake fluid can also cause the ABS light to come on. The ABS pump requires brake fluid to function correctly, and if the fluid level is low, it can lead to problems with the ABS system, including the illumination of the ABS light.

In this case, it is essential to determine the cause of the low brake fluid level and address the issue accordingly.

Blown Fuse

A blown fuse can also cause the ABS light to come on, disrupting the electrical circuit and impairing the proper operation of the ABS system.

Checking the fuses for the ABS system is an essential step in troubleshooting the issue if the ABS light is on.

How to Reset the ABS Light

If the ABS light is on, you may be able to reset it using the following steps:

Disconnect the positive cable from the car battery: This action will reset the vehicle’s central computer, potentially resolving the ABS light issue.
Replace the ABS sensor: If the light remains on after resetting the computer, you may need to replace the ABS sensor. To do this, unplug the sensor’s cable and unscrew the sensor’s housing, then install and connect a new sensor.
Use an OBD-II scanner: If the ABS light persists, use an OBD-II scanner to diagnose the issue further. This device can help you identify the specific cause of the malfunction.

ABS Light Troubleshooting Steps

If your ABS light is on, follow these steps to diagnose and address the issue:

Check the brake fluid level: Low brake fluid can cause the ABS light to come on, so ensure that your brake fluid reservoir is adequately filled.
Inspect the fuses: Check the fuses for the ABS system, as a blown fuse can trigger the ABS light.
Examine the wheel speed sensors: Inspect the wheel speed sensors for damage or debris that could interfere with their functioning.
Check the ABS controller: If the ABS light remains on after addressing the above issues, the ABS controller may be at fault. Have a qualified technician inspect the controller and replace it if necessary.

When to Replace the ABS Controller

If you have checked all the sensors, wiring, and other components and the ABS light still remains on, it may be time to consider replacing the ABS controller.

This component is a combination of hydraulics and electronics, and it is often expensive to replace.

Only consider replacing the ABS controller as a last resort after exhausting all other troubleshooting options.

Antilock Brake Warning Light FAQs

Can you drive with anti-lock brake light on?

Yes, you can drive with antilock brake light on. However, it is not recommended to drive with the anti-lock brake (ABS) light on, especially if it came on during normal driving.

The ABS system is a crucial safety feature of a vehicle that helps prevent skidding and maintain control in emergency braking situations. If the ABS light is on, it means that the system is not functioning correctly, and your brakes may not work at full capacity.

However, if both the ABS and brake warning lights come on at the same time, it is unsafe to drive the vehicle, and it should be towed to a repair shop instead.

It is essential to have the ABS system checked and repaired by a certified professional, as there is no “quick fix” for this issue, and the cost of repair may vary based on the vehicle’s year, make, and model

How long can I drive my car with the ABS light on?

There is no limit you can drive when your ABS light is on. The ABS system is a crucial safety feature that helps to prevent brakes from locking up during a sudden stop, making it easier to steer the car. Therefore it’s not recommended to drive your car with the ABS light on as it indicates a malfunction in the anti-lock braking system.

If the ABS system isn’t functioning correctly, it can compromise the vehicle’s safety, especially during an emergency.

Continuing to drive with the ABS light on can also lead to more costly repairs down the line. Therefore, it’s important to have the ABS system checked and repaired by a certified professional as soon as possible.

How much does it cost to fix ABS?

The cost to fix ABS can vary depending on the make and model of the vehicle as well as the extent of the damage. Generally, the cost of parts and labor to replace an ABS control module can range from $320 to $1,000, with an average cost of about $945 to $986.

It’s important to have the ABS system checked and repaired by a certified professional as soon as possible to prevent more costly repairs down the line and to ensure the safety of your vehicle.

How much does it cost to replace the ABS sensor?

The average ABS wheel speed sensor replacement cost ranges between $200 and $400 per sensor, depending on the car model and labor costs.

It’s important to note that the ABS sensor is a critical component of the automobile, and symptoms of a bad ABS sensor include an ABS warning light, pulsating brake pedal, loss of anti-lock brakes, and loss of traction control.

Therefore, it’s essential to get the ABS system checked and repaired by a certified professional to ensure vehicle safety and prevent costly repairs.

How long do ABS sensors last?

ABS sensors are designed to last as long as the car does but harsh conditions can make them fail. If the ABS light turns on, it could be a sign that the sensors need replacement. Repairs or replacement of ABS sensors should be done by a professional auto repairer to ensure the safety of the vehicle.

It is important to address any symptoms of a bad sensor promptly to ensure the proper functioning of the ABS system.

Can low brake fluid cause ABS light to come on?

Yes, low brake fluid is one of the common reasons that can cause the ABS light to come on. The ABS system relies on an adequate amount of brake fluid to function properly.

When the brake fluid level is low, the ABS system may not work as intended, and this can trigger the ABS light. It’s important to note that driving with a malfunctioning ABS system can compromise the vehicle’s safety and lead to costly repairs.

Therefore, it is recommended to have the ABS system checked and repaired by a certified professional as soon as possible

Can low tire pressure cause ABS light to come on?

Yes, low tire pressure can cause the ABS light to come on. In some vehicles, the tire pressure monitoring system is closely linked to the ABS system, and a low tire pressure warning can trigger the ABS light to turn on.

However, there could be other reasons why the ABS light is on, such as malfunctioning ABS components or faulty wheel speed sensors.

It is essential to have the ABS system checked and repaired by a certified professional to prevent more costly repairs down the line and ensure vehicle safety

Will ABS light clear itself?

The ABS warning light should clear itself in a few seconds after the ignition is turned on, indicating that the system is working correctly. However, if there is an issue with the anti-lock brake system, the ABS light will stay on to alert the driver.

It’s essential to get the ABS system checked and repaired by a certified professional to ensure vehicle safety and prevent costly repairs. Low brake fluid is a common reason for the ABS light to come on, and low tire pressure can also cause the warning light to illuminate.

Therefore, it’s crucial to have the ABS system checked as soon as possible to maintain control and directional stability during extreme braking

ABS Light Stays On, What To Do? >> Check out the video below:

Conclusion

The antilock brake system light is an important warning signal that should not be ignored. If your ABS light comes on, take the time to diagnose and address the issue as soon as possible to ensure the safety and proper functioning of your vehicle.

Remember that regular maintenance and timely repairs can help prevent ABS issues, keeping you and your passengers safe on the road.