The light coming on indicates a fault has been detected by the ABS system's computer. This could be anything from a faulty wheel speed sensor (a common culprit), a problem with the ABS module itself, low brake fluid, or a wiring issue.
To address the ABS warning light, you should:
1. Check your brake fluid level: Low brake fluid is a serious issue, and it can sometimes trigger the ABS light. Add fluid if needed, but if the level is consistently low, you have a leak that needs immediate attention.
2. Have the system professionally diagnosed: This is the most crucial step. You'll need to take your car to a mechanic or a shop with diagnostic equipment capable of reading ABS codes. They can use a scan tool to identify the specific fault code stored in the ABS module's computer. This will pinpoint the problem.
3. Repair the identified fault: Once the problem is diagnosed, the necessary repairs can be made. This could involve replacing a wheel speed sensor, repairing wiring, replacing the ABS module (expensive!), or addressing another component failure.
4. After repairs: Once the repair is complete, the mechanic should clear the fault code using their scan tool. The ABS warning light should then turn off. If it remains on after the repair, there's likely still an issue that needs addressing.
Attempting to reset the light without fixing the underlying problem is extremely dangerous. A malfunctioning ABS system significantly reduces your braking performance, especially in emergency situations. Ignoring the warning light could have serious consequences.
