What Does the ABS Light Mean?
When your ABS warning light comes on, it means something within the antilock braking system is malfunctioning. You may see the ABS warning light come on or notice a difference in the way your brakes perform. Sometimes the ABS warning light may illuminate even when your brakes work fine.
This often means that the hardware that makes up your braking system is working well. The problem may lie with the sensors that activate the antilock braking system. In this case, the most likely culprit is an ABS wheel-speed sensor on one of the wheels. Here’s a guide on how you can diagnose and fix one or more wheel speed sensors.