Q: ABS light on and brakes locking up.

asked by on January 19, 2016

The ABS light comes on intermittently and the 4-wheel drive light is flashing. Also, sometimes the brakes will lock up.

ABS Light is on Inspection $79.99 - $99.99 Get a Quote

Hello. The ABS light on the dashboard is an indicator to warn the driver of improper system function. With your symptoms, I believe your anti-lock braking system controller may have a fault. The anti-lock braking system measures wheel speeds and the differences between them to try to anticipate lock-up and prevent this by pulsing hydraulic pressure through the system. Have a certified mechanic, like the ones at YourMechanic, inspect your braking systems hydraulic and electrical components for faults.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

What others are asking

ABS problems

Hey there. Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car's ECU. When...

Engine is knocking loudly and has a weak acceleration.

You may have damaged the engine bearings by running it low on oil. I would suggest not driving it until you have an engine mechanic listen to and diagnose where the noise is coming from. If the noise is up...

Multiple problems with the car I just purchased

Hi there. I am so sorry that this has happened to you. The Check Engine Light bulb needs to be replaced so that you know when the system sees a problem; you didn't know that you would fail the emissions...

Oil cooler leaking due to faulty gasket.

Hi there. The oil cooler gasket, or the lines, could be the cause of the leak. Other owners have had both of these problems and the only way to verify where your leak starts is to add oil dye and...

Brakes causing screeching noise?

Hi and thank you for contacting YourMechanic. A loud screeching noise coming from your brakes is caused from a couple of issues. First - consider the last time the brake pads were changed. If it has been a while there...

Brake not working

The description given is rather vague. I'm not sure to what extent or in what way your right rear brake doesn't work. However, a brake problem that is exclusive to one wheel is usually caused by a faulty brake caliper....

Showing check engine,and loosing power. 2005 Toyota Isis

Hello - loss of power can be caused by many failures. The first task is to determine the problem codes being set with the Check Engine light. This will guide diagnosis, and avoid unnecessary replacement of parts. I would recommend...

Why do my front brakes make a squealing sound?

Hearing a squealing from the front of the car when you press the brake pedal? Don’t worry – it’s normal. Nissan pads (and most of those used by other automakers out there) come with a metal tab that’s designed to...

My heater is blowing cold air when idling - 2005 Nissan Altima

Hello. A cold blowing heater can absolutely be caused by low coolant. You are on the right track. However, if that coolant is not being circulated through the heater core, the warm coolant will not cycle into the core, and...

Related articles

What Sensors Make the ABS Work?
When When we are discussing ABS systems it is good to note the year and make of your vehicle because ABS systems have evolved quite a bit over the years, but you also have to know how the ABS system...
How Anti-Lock Brakes Work
An An anti-lock brake system (ABS) is a braking system that is made to allow a vehicle to maintain traction with the road when braking. Braking is controlled by driver input via the brake pedal, and older braking systems response...
How Disc Brakes Work
Car disc brake systems are made up of the rotor, brake pads, pistons, and caliper. The pistons push the pads into the rotor to slow or stop your car.