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ABS (Anti-lock Braking System)

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How to Respond When Your Brake Warning Light Is On
Safe operation of your car relies heavily on your brakes working properly every time you need them. When you experience a Brake Warning Light, you should immediately question the...
How to Replace an ABS Speed Sensor
The Anti-Lock Braking System uses speed sensors to make sure your wheels are synced when braking. Most modern cars are equipped with this sensor.
How to Replace an Anti-Lock Brake Fluid Level Sensor on Most Modern Cars
The anti-lock brake (ABS) system has a fluid level sensor that fails when the warning light comes on or if there is low fluid in the reservoir.
How Long Does an Anti-Lock Fuse or Relay Last?
Today, vehicles have braking systems that are far superior to what they used to be. Late-model cars still have traditional braking systems, but they are backed up by ABS systems that prevent...
How to Replace an Anti-Lock Brake Pressure Switch on Most Modern Cars
Anti-lock brake systems (ABS) have a pressure switch that fails if the the light appears on your dashboard or there is wheel locking during braking.
How Long Does an Anti-Lock Brake (ABS) Fluid Level Sensor Last?
Your ABS system works both by means of electricity and hydraulic pressure. Fluid levels need to be monitored at all times, and that is the job of the ABS fluid...
How to Decide Which Car Is the Right Fit For You
Your vehicle selection is daunting. There are so many car brands, vehicle styles, and option packages available that it makes choosing one vehicle very difficult. How do you know...
What Does the ABS Warning Light Mean?
The ABS light is on due to anti-lock braking system issues. Causes include low brake fluid, a blown fuse, or abnormal signals from wheel sensors.
How Long Does a Wheel Seal Last?
The wheels of a car are very important in regards to getting the car moving. In order for the wheels of the car to move, a person will have to make sure...
How Long Does a Wheel Speed Sensor Last?
With all of the sensors and switches that a card has, it can be very overwhelming when trying to keep up with them all. For the most part, a person will...
How to Replace an ABS Control Module
An ABS module can be a difficult part to replace depending on the manufacturer's design. You may need to reprogram and bleed the system if necessary.
Why ABS Control Module Replacements Can Be Tricky
Replacing the ABS control module can be challenging, as it is likely to be connected to many parts of a motor vehicle.
A Mechanic's Guide to the Parts of a Car
Modern cars have many different parts and features, including catalytic converters, anti-lock brakes, four-wheel drive, and keyless ignition.
How to Replace an Anti-Lock Brake System (ABS) Fuse or Relay on Most Cars
Anti-lock brake systems have a fuse that fails if the ABS brake light is on or when the fuse is blown. The wheels may lock up if the ABS fuse is bad.
How to Replace a Yaw Rate Sensor
Yaw rate sensors monitor traction, stability, and the anti-lock braking system to alert you when the car tilts at an unsafe degree.
How to Replace an Anti-Lock Control Relay
ABS brakes use an anti-lock control relay to regulate the pressure of the brake fluid in the ABS system. The control relay breaks down over time.
How to Replace an Electronic Brake Control Module (EBCM)
ABS systems is controlled by electronic brake control modules (EBCM) which monitors sensors and relays data for smooth and safe braking.

Related questions

Question
"Panic" stop - brakes went to the floor and pulsated. Now my anti-lock and trac off light is on. 2003 Buick Rendezvous
Hi there - I believe you have a problem with your braking system, possibly from the repair work just done on the vehicle. If you have safe braking function, I would take the vehicle back to the repair shop that...
Question
ABS and brake light is on
If the ABS warning light is on, that means that there are downloadable ABS diagnostic trouble codes, much like the codes you would download if you have a Check Engine Light diagnostic. The ABS trouble codes will give a general...
Question
Abs lights is on
In order to find what ABS sensor is causing the ABS light to be on you will need a mechanic like one from YourMechanic come to you and scan the ABS system computer to retrieve the stored codes and even...
Question
Brake Too Low of a force and pedal goes to the floor easy.
Hi there. Check the ABS (anti lock brakes) control module for any air in it. Sometimes when bleeding the brakes, the air will travel to locations within the brake system and get trapped. The module needs bleed with the brake...
Question
My abs light came on after I got my wheel bearing fixed.
Hi there. Check the wheel bearing to see if the wheel speed sensor was plugged in. Those indicator lights will come on when the sensor is left unplugged. As for the engine having a misfire, check the spark plugs and...
Question
Signs dash warning lights
The ABS light on the dash is an indication to let you know the anti-lock brakes (ABS) have a fault in the vehicle and the anti-lock function is disabled due to the fault. You may have a defective wheel speed...
Question
My brake light and ABS light came on today while driving home from work I checked it out put some fluid in it
Hello. Adding brake fluid to the system was a great idea. Although it did not turn off the ABS light, you can use that to your advantage. The light means the computer is detecting a problem, and you can scan...
Question
Why is my ABS warning light on?
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 the ECU...
Question
signs
The anti-lock brake system uses sensors in the wheels and other inputs to help control the wheels from sliding, locking up, and to help control the car under certain driving conditions. Issues with the system could include these sensors, any...
Question
ABS, Rough shifting
Hello. The only speed sensor located in the rear of the vehicle will be located in the differential housing. This may be the sensor that requires attention. If our transmission is experiencing shifting problems in first gear, and your speedometer...
Question
My ABS and brake light are on, but brakes are working.
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 the ECU...
Question
Door locks not working, and trouble codes
Hello. From what you describe it would appear that your vehicle is experiencing more than one issue. The codes retrieved are for the vehicle's ABS system and are likely a separate problem from the door lock malfunctions. While it may...
Question
I just had my tires changed and now my abs light is on
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 the ECU...
Question
Why are my front service brakes not working. I just replaced the abs module and now I have no front brakes
When you installed the new ABS module you would need to activate the bleed function using a scanner that has ABS function capabilities. When the ABS module is put into bleed mode it opens the valves so fluid can flow...
Question
What would cause the ABS, VDC, and SLIP lights to come on?
This may be a couple of different possibilities such as faulty wheel sensors or potentially a faulty ABS pressure switch. Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying...
Question
My ABS is making a lot of noise in my GMC Yukon 2002.
Before spending the extra money on replacing the modules for the ABS and traction control, you may want to have the wheel sensors checked first as these are commonly known to either fail or become disrupted causing theses systems to...
Question
ABS brakes lock up
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 the ECU...
Question
What could be wrong with my car after slight impact and antilock light comes on? 1995 BMW 525i
Hello - there are a couple of possibilities here. You may not have noticed, but quite likely the anti-skid brake system (ABS) was energized during your skid. This may have caused one of the valves in the system to stick,...
Question
Can build pressure in front brakes
In order to properly bleed the ABS brakes on this vehicle you will need to have a scanner that can put the ABS into bleed mode. This will open the valves in the ABS brake modulator so you can bleed...
Question
ABS, traction control and 4wd lights come on, brakes dragging? 2008 Jeep Patriot
Hello - mostly likely, a malfunctioning wheel speed sensor or other ABS sensor is causing these symptoms. ABS, traction control and auto-engaging 4WD are integrated systems, and share sensors. A malfunction in one system can bleed over to the other...

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