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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
ABS problem?
When your ABS system detects the wheels are losing contact with the road you will see and feel various braking pulsations, hard pedal as the ABS is trying to help you keep control on the ice. Once the 4 tires...
Question
Squeeking noise coming from front driver-side tire only
It is possible you have worn brake pads and the sensor is telling you the pads are worn down too far. Since you also had an ABS light come on you may have a bad bearing and sensor in that...
Question
Applying brakes at stop lights and the vehicle slides.
Hello. If the brakes are staying applied and the wheels are locked but the vehicle begins to slide it is because of the slickness of the roadway. There is not going to be any way to prevent this unless you...
Question
ABS light is on...1999 toyota camry
It sounds like you may have an issue with the ABS control module or the wheel sensors on your vehicle. The ABS control module controls the activation of the ABS system based upon inputs from the ABS wheel sensors. When...
Question
Traction control and abs lights on.
Hi There, It sounds like quite possibly during the service of your car, the wheel sensors may have been inadvertently bumped or damaged causing them to read inaccurately, which causes the traction control and anti-lock braking system to be engaged....
Question
Abs light, emergency brake light, steering wheel assist light, engine light, EPC light, traction control light
Hello, thank you for writing in. The vehicle does utilize a lot of the same sensors for these systems. Are there any other codes that are coming up when this code appears? If so you will want to take these...
Question
All wheel drive is off and abs lights are on
This may be an issue of a faulty ABS control module or possibly faulty wheel sensors. This is a unit that controls the activation of the ABS system based upon inputs from the ABS wheel sensors. When this module is...
Question
ABS
It sounds like during the process of changing your shocks you may have bumped or disturbed the wheel sensors that relay information to the ABS module. Your car is equipped with wheel speed sensors at each of the four wheels...
Question
Why does my ABS lights in dash come on after driving for a while on my 2011 Hyundai Sonata
Hello. If this issue has occurred ever since the work was done then I would suspect that there is something that was not installed correctly. If you are getting noise also then the ABS wheel speed sensor may be contacting...
Question
Rear brakes locking up.
If the ABS light is on, there will be diagnostic codes to access. Those codes will provide enough clues to dig into this. I would first obtain those codes simply because they will give a direct indication of what components...
Question
What's wrong? How much will it cost to fix approximately?
The lights you have on and the vehicle not moving may be a major transmission or shift linkage and brake system failures. The costs of the repair would not be able to be determined without a full diagnosis. To get...
Question
What should i check before replacing the ABS module
Hello There, It sounds like you may have some faulty wheel speed sensors that may be causing the ABS light to come on. Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel...
Question
Tire on back passenger side keeps locking up once you hit 20MPH.
Hello There, It sounds like you may have a faulty wheel speed sensor at that wheel causing it to relay incorrect signals to the ABS system which may be causing it to lock up that wheel. Your car is equipped...
Question
Replaced rt.& Left Rotors and brake pads. Also Rt. hub. the problem is ABS & brake light still come on. Does this have be reset ? 2004 Buick Ranier
Hello - the short answer is "Yes", the ABS problem code needs to be cleared with an appropriate Scan/Reset tool. This also begs the question "Was the ABS specific code read when the ABS light first came on, so that...
Question
Would a rear brake caliper that was siezed cause the ABS light to come on?
ABS is capable of monitoring differentials in wheel speeds, and rates of deceleration, and there is no way the ABS system could "know" whether the brakes are in good repair or not. However, if the caliper was seized such that...
Question
When I'm either in reverse or drive and I turn, the left wheel locks up.
Hi there. Check the suspension and see if it is moving around. This could cause the tire to jam up into the sub-frame and make the tire stop. Otherwise, check the brake caliper and see if its loose causing the...
Question
The abs light will not go off
If the ABS warning light has come on, the recommended service is an ABS fault diagnostic. Inasmuch as the warning light is on, if you request that diagnostic, the responding certified mechanic will download the ABS trouble codes that your...
Question
Brake pedal fades
You still have air in the system and it gets trapped inside the brake lines and ABS system. You will need to have the ABS system accessed and use the scanner to put the system into bleed function. When it...
Question
My ABS light come on when i turn or back up otherwise it will stay off
You ABS is capable to store failure codes. You should have the system scanned to get the codes. You may have a sensor then is not registering when you back up for some reason. It may be the hub that...
Question
Dash showing "Check Brake System" and "Service Advance Trac" after trouble code deleted.
You can try to do a battery reset to see if it helps but I would think that you will need to have a scanner that can access the ABS and traction control system so you can see why the...

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