Skip the auto shop - Our mechanics make house calls

Q: ABS light on and off

asked by on

The ABS light is going on and off. It might be a bad sensor on the brakes.

A: The ABS light coming indicates a fault in t...

The ABS light coming indicates a fault in the ABS system. Fault codes should be read out as this will guide the diagnosis. Possible causes for the ABS light coming on and off is a possible loss in wheel speed sensor signal at times, an intermittent hydraulic unit function, or a possible processing error in the 4Wheel Anti-lock Brake System Module (4WABS). You may want to enlist the help of a mechanic, such as one from YourMechanic, who will have a scanner tool to interrogate the 4WABS module and then diagnose/repair the issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How do you use ABS?

Your car is equipped with a four-wheel anti-lock brake system (ABS) that works in conjunction with your regular brakes to provide better safety during normal driving conditions. While the system is automatically engaged by the car’s computer, there are a...

Q: Brakes are locking up on my X5 but the dealer can't find the problem.

Your car is equipped with a brake assist system. It's designed to sense a panic stop situation and tie the brakes down hard. By sensing the speed with which you shift your foot from the gas to the brake and...

Q: Car won't start at all - 2000 Nissan Maxima

Regarding the fuse, the high current probably welded the fuse to the fuse holder. YourMechanic can attempt to salvage the assembly by trying a fuse replacement without destroying the fuse terminal box. If you are lucky, putting a new fuse...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.