Can Low Battery Cause Abs Light To Come On?

While you’re driving, sensors throughout the vehicle are continually monitored to verify that everything is functioning properly. The ABS, which is short for an anti-lock braking system, is among the systems that are being checked. But in rare cases, a bad battery can cause the ABS light to shine. 

Does the light mean that the ABS is bad? Should you stop your car when it shows up?

The light indicates that there is something wrong with the system. And you should take it seriously. When the light shines, it is best to stop the car and possibly bring an expert to check it up.

Will a Bad Battery Cause the ABS Light to Come On?

A low or weak battery can end up causing the ABS and traction control lights to illuminate. Despite the fact that it can have an impact on the overall performance of your vehicle.

If your vehicle’s ABS light illuminates, it is not a good sign. This signal indicates that your vehicle has some common issues and that you should inspect all systems from top to bottom.

Think about a situation when your battery may be damaged or dead in some way. The battery must then be recharged.

You realize your vehicle’s ABS and traction control lights are on before changing or recharging. There’s no need to turn off the ABS light. Because the light turns on automatically when you restart the car. As a result, you change your battery right away.

Sadly, if the battery power drops from normal to low within a week of replacing the battery, your ABS and traction control lights will illuminate again.

Because of the low battery, you also lost all of your interior lights. Fortunately, the headlights may be functional.

Finally, a fall in the car’s electrical power causes the ABS light to illuminate. The solution is to use a voltage regulator to test the voltage rate.

Since your voltage regulator regulates the charging voltage, you can check the alternating current. Maintain a voltage rate of 13.5 to 14.5 volts to safeguard the electrical elements.

What does it Mean When the Battery and ABS Light Comes On?

The ABS monitors the rotational speed of each wheel using sensors. To make sure the car is stable and under control, a computer controls the signals from all four wheels as well as the location of the brake pedal.

If the computer detects any abnormal transmissions or the absence of a signal from one of the sensors, the ABS warning light will illuminate to alert the driver.

The computer can switch on the ABS light for a variety of reasons, including low brake fluid levels or a blown fuse, in addition to monitoring the wheel speed sensors. 

Some ABS systems will flash the light a few times before turning it on permanently. The number of flashes is a problem code that can help you figure out what’s wrong.

Once the ABS flashes, check the vehicle repair manual or online information to figure out what it’s telling you.

What are the Reasons for an ABS Light to Come On?

Other than the battery issue there are other reasons why an ABS light can illuminate. A defected ABS module, low levels in the fluid reservoir, broken wheel speed sensors, or the system being turned off are the four most common causes for this light to illuminate. 

Here are the common reasons for ABS light to illuminate-

  • The brake fluid plays an important role in attempting to control the brake force in an anti-lock braking system. There’s also a brake fluid reservoir that stores the anti-lock braking system fluid.

This reservoir may occasionally leak, causing fluid levels to fall. Either that or huge quantities of air may reside within the system. In either case, the ABS warning light on the dashboard will most likely illuminate.

  • Every wheel’s hub contains speed sensors that measure the wheel’s motion rate. This data is then sent to the anti-lock braking system. 

If it is discovered that at least one of the wheels is rolling too slowly, the anti-lock braking system would then put more pressure on the brake fluid to enable the wheel to move normally. 

However, if there really is an issue with the speed sensor, the anti-lock braking system can detect it and enlighten the warning light on the dashboard.

  • After some time, the anti-lock braking system module can corrode. This is among the most likely causes of an anti-lock braking system malfunction.

If the module is corroded, it will be unable to gather information from the wheel speed sensor. Hence, the ABS light shines on the dashboard. It may not even take an awful lot of corrosion to cause this.

However, you may need to renew the module if this occurs.

  • On the dashboard of some automobiles, a bulb inspection will be performed. This inspection is for the driver’s ease to ensure that the warning light bulbs in their car are functioning properly. 

After a certain period of time, these lights may typically turn off on their own. There can be a glitch in the bulb check that causes the ABS warning light to remain illuminated afterward when the bulb check is finished in some cases.

When the ABS Lights Turn on, is it Safe to Drive?

Even if the ABS light is illuminated, the vehicle may still be safe to drive. You will still be able to brake normally unless there are brake warning lights on in addition to the ABS.

However, the vehicle will not be able to help you if you start to skid, so drive carefully.

If you notice any loss of braking power while this light is on, the vehicle must not be driven. You should then talk to a professional mechanic to check the problem and fix it for you.

What to Do if the ABS Light Comes On?

When the ABS light illuminates, the very first thing you need to do is arrive at a safe stop, turn off the vehicle, and then restart it. The computer will then recheck all the sensors for any anomalies.

A simple reboot, similar to your home computer, may resolve the issue and the light should go off. Most of the time it isn’t that simple, and there may be a problem with the system that needs to be identified.

The best choice is to have a certified professional connect a scan tool to the vehicle and check for any trouble codes.

If you have certain tools on hand, you can examine a few things at home:

  • Detach the wheels to check for a defect in the wheel speed sensors and cables.
  • Check to see if the ABS fuse has blown as well. Remember that changing a blown fuse is just a temporary solution; the fuse will most likely blow again.
  • You’ll have to figure out what’s making the fuse blow. A scan tool will almost certainly be required to completely resolve the problem.


The ABS light is a safety feature that warns drivers when the Anti-lock Braking System is malfunctioning. If your automobile has been running for a long time and you notice this warning light, stop the car or drive to a gas station or repair shop. 

Low battery voltage can be recognized by sensors in many components of your car, which is one of the most prevalent causes of ABS failure. 

I recommend having your automobile inspected as soon as possible to ensure that it does not happen again and to prevent any future safety issues.

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