Sometimes you might be driving, and the ABS light will suddenly come on too. But if the ABS light stays on, it means there is a problem with your anti-lock braking system. If the computer doesn’t find a problem, the ABS light will turn off quickly. After you put your key in the ignition and turn it on, the computer does a test on the anti-lock braking system to ensure it is functioning normally. The main reason is from simply turning on your vehicle. There are different reasons for why the car ABS light would come on.
This is particularly important if the road is slippery or wet. That way, the wheels don’t lock up or skid uncontrollably on the road during the braking process. As a result, you could end up in a serious car accident.īasically, the function of the anti-lock braking system is to keep your vehicle’s tires on the road as you aggressively step on the brake. That means if you need to step on the brake pedal quickly to stop your vehicle, then it might not stop as fast as you want it to. When the ABS light activates on your car’s dashboard, it signals that something is wrong with the anti-lock braking system. What to Do When the Car ABS Light Comes on This would certainly cause the ABS light to come on, which means you’d need to replace the pump right away. Unfortunately, hydraulic pumps tend to get worn out after years of using them. This will allow the wheels to maintain their traction as they’re touching the ground. Once this happens, the system will activate the hydraulic pump to increase the amount of brake fluid pressure. If there is one wheel of a vehicle that moves at a different speed than the other wheels, the wheel speed sensor detects this and then notifies the anti-lock braking system. In some instances, there may be a glitch in the bulb check which keeps the ABS warning light illuminated after the bulb check is completed. These lights will usually turn off by themselves after a certain amount of time.
This check is for the driver’s convenience, so they know the bulbs of their vehicle’s warning lights are working properly. Some vehicles will perform what is known as a bulb check on the dashboard. But you will need to replace the module after this happens. It doesn’t even take a lot of corrosion to cause this to happen either. As a result, the ABS light illuminates on the dashboard.
If the module is corroded, then it can’t obtain information from the wheel speed sensor. This is actually one of the most common reasons for why there ends up being a problem with the anti-lock braking system. The module of the anti-lock braking system can form corrosion after a while. Read also: 5 Symptoms of a Bad Intermediate Steering Shaft and Replacement Cost 3) Bad ABS Module If it turns out that at least one of the wheels is moving too slowly, the anti-lock braking system will increase the pressure of the brake fluid to allow the wheel to move at a normal speed.īut if there is a problem with the speed sensor, the anti-lock braking system will detect that and cause the warning light to illuminate on the dashboard. This information then gets transmitted to the anti-lock braking system. There are speed sensors built into every wheel’s hub which calculate the movement rate of that wheel. Either that or excessive amounts of air may exist within the system.Įither way, it may certainly cause the ABS warning light to illuminate on the dashboard. Sometimes there could be a leak from this reservoir which will cause the fluid levels to drop. There is a brake fluid reservoir which holds the fluid of the anti-lock braking system. The brake fluid has a lot to do with controlling the braking pressure within an anti-lock braking system. There could also be a problem with other sensors or components that it communicates with as well.īelow are the top 5 causes of an ABS light coming on. It doesn’t always mean there is a problem with the anti-lock braking system directly. There are many causes which could make an ABS light come on. Can You Drive Your Car With the ABS Light On?.What to Do When the Car ABS Light Comes on.5 Common Reasons the ABS Light Comes On.
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