How to Turn Off an ABS Light: Troubleshooting Guide

You can’t just clear codes to turn off an ABS light; you have to fix the problem

An ABS warning light turns one when there’s a problem with the ABS system. If you just clear the trouble codes to turn off an ABS light, it will just come on again because you haven’t fixed the problem.

Why the ABS light comes on

The ABS control module performs a system check on start-up and constantly checks for valid wheel speed information as you drive. If it detects any data that’s out of spec, it will turn on the ABS warning light and disable the ABS portion of the brake system. Your brakes will still work, but you will lose the anti-lock braking function

The ABS consists of an electronic module, a valve unit, a pump, a wiring harness wheel speed sensors, and tone rings or multipole magnetic rings.

ABS components

The ABS wheel speed sensors monitor the rotation speed of each wheel and report the revolutions to the ABS module. When the module detects that one or more wheels are about to lock up. the valve unit releases brake pressure to that wheel and then rapidly applies and releases pressure to that wheel to prevent further lock-ups.

How to turn off anABS light

There is only one way to turn off the ABS light: Fix the underlying problem that’s causing the fault.

• Do not attempt to disable the ABS system by removing a fuse or other component. This is dangerous and will leave you without any ABS functionality, and in some cases, removing the fuse will also disable the stability and traction control systems.

• Driving with a faulty ABS system is risky. While your regular brakes might still work, the ABS system might not be able to prevent wheel lockup in emergencies, leading to increased stopping distances and loss of control.

• A well-functioning ABS is essential for safe driving, especially in challenging road conditions.

Where to start your diagnosis

Like all other dash warning lights, start by reading the trouble codes. The vast majority of ABS-related problems are due to wheel speed sensor or reluctor ring issues. See this article on wheel speed sensors for more information on how they work and how they fail.

©, 2022 Rick Muscoplat