![]() 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. The ABS system is designed to grab and release the brakes very rapidly at all four corners to prevent tire lock-up and keep each tire spinning, while still allowing you to slow the vehicle as quickly as possible. This is because a rolling tire has more grip than a sliding tire. You will also typically experience a shorter stopping distance. When your tires are spinning, you have better control over the car. ![]() Tire lock-up happens when the friction between the brake pad and the brake rotor is greater than the friction between the tire and the road surface. When you step on the brakes hard, you are likely to lose traction on one or more tires. “ABS” stands for anti-lock braking system. 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.Failure to ensure the ABS system functions as prescribed by the manufacturer will result in a defect being identified on a CVSA road-side inspection. Always confirm your ABS is working – see that your ABS light(s) turn on then off when power is applied during your trip inspection. ![]() Knowing your ABS is working can give you peace of mind and it can help you when you need it. Know your ABS is working - check it during your trip inspection! Remember, if the light does not work you will never know if the ABS stops working. Make sure you have the ABS problem fixed as quickly as possible. Whenever the ABS indicator light turns on when you are driving there is an ABS malfunction present that requires repair. While the ABS may be partially working, in this condition it is not working properly. In some cases, certain types of malfunctions can cause the ABS indicator light to turn on each time the brake is applied. If no malfunctions are detected the light turns off after a few seconds.ĪBS on trailers also receive backup power through the brake light circuit. When an ABS malfunction is detected the ABS indicator light stays on. If the light does not come on at all there could be a problem with the indicator light, the wiring or the ABS controller. When power is supplied to the ABS controller the ABS indicator lights momentarily turn on as the ABS automatically conducts a self test. In this case, the ABS indicator light check can be accomplished by disconnecting and reconnecting the power connector (while following appropriate precautions for the powered systems). One exception is for towing vehicles equipped with constant power supply (even with key off) through the trailer electrical cord, which may be required for safety or security on certain trailers or loads, such as gasoline tankers, ammunition loads and others. When ABS is working properly, each time the vehicle ignition switch is turned on and kept in the on position the ABS indicator lights will turn on for a few seconds then turn off. If the vehicle you drive was built after March 1, 2001, and is equipped to tow a trailer, it will have two ABS lights on the dash, one for the towing vehicle and one for the trailers. Converter dollies have a light located on their left side. Buses and truck tractors are dash mounted and on the exterior of trailers near the red side marker on the left rear side of the trailer. The lights are located on the instrument panel of trucks. ![]() Know where the ABS indicator light is on every vehicle you operate and how to check that it’s working properly. They are there to tell you that the ABS is working properly. ABS indicator lightsĪBS indicator lights are amber-coloured and marked with the letters ABS. The air brake system remains the same with the addition of the ABS components. This keeps the wheel from skidding and increases vehicle stability and control during emergency stops and in adverse situations such as on wet or icy roads, through curves or during lane changes. If it detects a wheel locking up during a brake application, the system releases brake pressure to that wheel only. An ABS is an electronic system that monitors wheel speed at all times and controls wheel speed while braking.
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