Skip the auto shop - Our mechanics make house calls

Q: Brake and ABS lights on for several day and then off

asked by on

I've had the brakes checked and all systems good. After that my brake warning light and also the ABS light came on for several days. But now they've gone off for the past 36 hours. What would cause this and should I clean the sensor?

A: The anti-lock braking system (ABS) system p...

The anti-lock braking system (ABS) system prevents wheel lock up when the brakes are applied during emergency braking or on a slippery surface. In your vehicle, the skid control module receives speed signals from each wheel's speed sensor.

It then controls brake pressure to each wheel via the pump motor and solenoid valve. The ABS warning light will illuminate if there is a system malfunction. The electronic brake force distribution (EBD) controller utilizes the ABS to properly distribute brake force between the front and rear of the vehicle as well as side to side. The brake light will illuminate if there is a problem with the EDB controller.

My best guess is that you have a faulty wheel speed sensor/wiring harness, but the problem could be anywhere in your ABS/EBD system. Cleaning the sensors isn't likely to solve your problem. I suggest you have a trained professional, such as one from YourMechanic, diagnose and repair your brake system for you.

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・Save up to 30%

Get a quote

What others are asking

Q: Vehicle hard to start

There can be quite a few reasons why you are experiencing a hard start condition in your Honda Civic. This can range from a weak fuel pump, dirty idle air control valve, a failing fuel pressure regulator or perhaps it...

Q: What does the ABS light on the dash mean?

The anti-lock brake (ABS) indicator light on your dash should come on during the system’s self-check when you start the engine, but should go out shortly afterward. If the light comes on again later or stays on, it’s a sign...

Q: oil light on off

Hello. Since the oil light is coming on, I would check the oil pressure first with a manual oil pressure gauge. If the pressure is low on the gauge, then it may need an oil pump. If the pressure is...

Related articles

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...