10 ABS Brake Sensor Problems – How To Fix Them?

There are a few common ABS brake sensor problems that can cause your car to stop or not accelerate as smoothly as it should. When the sensors don't work properly, they can send incorrect signals to the computer controlling your car's braking system.

Here are some of the most common symptoms of an ABS brake sensor problem:

  • Your car will suddenly stop in traffic or on a hill
  • You'll notice a decrease in braking power
  • Your car won't go as fast when you first turn on the ignition

In many cases, fixing an ABS brake sensor problem is simply a matter of replacing the faulty part. However, if you notice any other unusual symptoms related to your brakes, like reduced acceleration or sudden stopping, it's best to have them checked by a mechanic.

10 ABS brake sensor problems


1. The ABS module isn't working correctly

If You are The ABS module is located under the hood of your vehicle. This component controls the distribution of braking force between the front and rear wheels. If this component malfunctions, your car may not be able to slow down or stop quickly enough.

How to fix the abs module that isn't working properly experiencing unexpected braking or shaking while driving? This could be a sign that your ABS module is malfunctioning. But don't panic! Fixing this issue can be as simple as checking and replacing your vehicle's ABS fuses and sensors.

Additionally, it could also be necessary to clean and tighten any loose connections in the ABS wiring system. If these quick fixes don't seem to do the trick, it might be time to replace the entire ABS module altogether.

Whatever the case may be, fixing a malfunctioning ABS module is crucial for maintaining safe driving conditions on the road. So make sure to address this issue promptly and efficiently for a smooth (and safe) ride ahead.

2. The ABS module has been damaged

If the ABS module is cracked or broken, it could affect its ability to detect wheel lockups. In addition, the module might also fail to activate the brakes at all.

3. The ABS module is defective

If the ABS module itself is defective, it could cause your car to stop unexpectedly or not respond to braking commands.

4. The ABS module is disconnected from the rest of the car

A loose connection between the ABS module and the rest of the car could cause the module to malfunction.

5. There is no signal coming from the ABS module

A faulty ABS module could result in a lack of braking force.

6. The ABS module is sending false signals

An incorrectly functioning ABS module could send out erroneous signals to the computer controlling the brakes. These signals could make the computer think there is a problem with one of the wheels, causing the brakes to apply unevenly.

7. The ABS module is stuck in the "on" position

An improperly functioning ABS module could keep the brakes applied even after the car stops moving.

8. The ABS module is not receiving signals

If the ABS module doesn't receive signals from the electronic stability control (ESC), the brakes might not function properly.

9. The ABS module is misaligned

If the ABS module isn't aligned properly, it could cause the brakes to apply uneven forces.

10. The ABS module is dirty

Dirty ABS modules could cause the brakes to operate erratically.

How to diagnose ABS Brakes Sensor Problems?

To diagnose whether or not your ABS brakes sensor is working properly, follow these steps:

Step 1: Check for proper operation of the ABS module

Check the following items to determine whether or not your ABS module is operating normally:

  • Is the ABS module turned on?
  • Does the ABS light illuminate?
  • Does the engine start without hesitation?

Step 2: Check for a bad connection

If the ABS module does not appear to be working properly, check for a bad connection between the module and the rest of your car. To do so, turn off the ignition switch, remove the key from the ignition, disconnect the battery cable, and then reconnect the battery.

Turn the ignition back on and observe the behavior of the ABS system. If the ABS system still appears to be malfunctioning, replace the connector that connects the ABS module to the rest of the car.

Step 3: Check for a bad circuit board

If you've checked for a bad connection and the ABS system continues to malfunction, check for a bad circuit board. To do so, open up the hood of your car and locate the ABS module.

Remove the cover plate covering the module and inspect the circuit board inside. If the circuit board looks damaged or if any components have fallen off the board, replace the entire module.

How to fix ABS brake sensor problems

ABS (Anti-lock Brake System) is a safety feature on most modern cars. When you brake, the ABS sensor monitors the amount of pressure your brake pedal produces and activates the brakes if it senses that you're going to lose control of your car.

If one or more of your ABS sensors are not working correctly, you'll notice decreased braking performance and increased stopping distances. Here are some common problems with ABS sensors and how to fix them:

Faulty wiring: This is usually caused by water getting into the Sensor area or corrosion on internal connections. In most cases, this can be fixed by replacing the entire sensor assembly or just re-connecting any faulty wires.

Shorted wires: If one wire from an ABS sensor gets shorted, there's a good chance that damage will occur to other parts of the system as well as reduced braking performance & distance travelled. It may also result in a loss of power steering and/or airbag deployment.

Bad connection: A loose connection or corroded connection point can cause intermittent faults. These types of issues can be difficult to detect but should always be addressed immediately.

Dirty sensor: Dirt can build up over time causing the sensor to fail. Cleaning the sensor will help prevent future failures.

What are the possible causes of ABS brake sensor problems?

When braking, the ABS sensor sends a signal to the controller telling it how hard the brakes are being applied. If there is a problem with this sensor, the controller will not be able to calculate how hard to apply the brakes and may cause your car to skid. Some common causes of ABS brake sensor problems include:

  • Damaged or corroded wiring
  • Faulty sensors
  • Worn out or damaged connectors

If you have any of these issues, fixing them will restore normal braking behavior and prevent skidding. Other potential solutions include replacing worn parts (sensors, connectors) or resetting your vehicle's ECU if there is an issue with its calibration.

Illuminated Warning Lights

If you experience any of the following illuminated warning lights on your ABS wheel speed sensor, it is important to have the sensor replaced as soon as possible. If left unchecked, these symptoms can lead to a loss of vehicle control and potential injury:

  • Illuminated red "Brake" light
  • Illuminated yellow "Lane Change" light
  • Illuminated green "Emergency Stop" light
  • Alert message indicating an imminent failure (light will stay on for about 10 seconds)

There are four main symptoms of a bad ABS wheel speed sensor, and they include:

  • Pulsating brake pedal
  • Reduced braking power
  • Rear end skidding
  • Loss of traction

Loss of Anti-lock Brakes

If you're experiencing any of the following four bad ABS wheel speed sensor symptoms, it's important to have your car checked out by a mechanic:

  • Slipping and skidding on wet roads or when turning in a rainstorm
  • Unstable steering during hard braking or near turns
  • Crazy acceleration and deceleration (jerking) with no warning signs before sudden acceleration or deceleration happens
  • Loud grinding noise coming from under the hood

Loss of Traction or Stability Control

One of the most common problems with ABS wheel speed sensors is a loss of traction or stability control. This can be caused by many factors, such as a flat tire, loose wheel nuts, or broken wire connections. If you notice any of the following symptoms, it's time to have your car inspected by a mechanic:

  • Poor acceleration and/or braking performance
  • Unstable steering
  • Hesitations or jerks when driving in wet conditions

ABS or TCM Light ON

When the ABS or TCM light comes on, it generally means that there is a problem with one of the car's subsystems.

The most common problems are related to either the airbag sensor or traction control module. If you're having trouble starting your car, these may be some of the first things that you check.

However, if you've had your car serviced recently and still have issues starting it, there is a much better chance that something more serious is wrong with your vehicle than just an issue with one of these sensors.

If you're experiencing any unusual symptoms while driving (for example: loss of power steering or sudden braking), it might be a good idea to take your car in for inspection by an expert mechanic as soon as possible in order to rule out any potential issues before they turn into bigger problems.

Transmission Shifting Improperly

If your car's ABS (anti-lock braking system) sensor indicates that the transmission is not locking up properly, it may be time to replace the sensor. Symptoms of a bad ABS sensor can include:

  • Shifting problems
  • Poor fuel economy
  • Hesitation or difficulty starting the engine

Wheel Spin While Accelerating

If you notice a decrease in performance or wheel spin while accelerating, there is a good chance that your ABS sensor may be malfunctioning.

A bad ABS sensor can cause these issues by sending incorrect signals to the engine control unit (ECU). In order to fix the issue, your mechanic will need to replace the faulty sensor.

Wheels Skidding While Braking

One sign that your ABS system may be malfunctioning is when your car starts to skid while braking. This can happen when the brake pads are not pushing enough material against the rotors, or when there's a problem with one of the sensors in the ABS system.

If you notice this happening, it's important to have your car serviced as soon as possible so that the issue can be addressed and corrected.

Where is the ABS Sensor Located?

The ABS (Anti-lock Brake System) sensor is located in the braking system of most vehicles. When you apply the brakes, the sensor sends a signal to your vehicle's computer. The computer then determines if there is enough pressure on the brake pedal to activate the ABS and stop your car.

If there isn't enough pressure, the computer sends a signal to your wheels telling them to start spinning faster so you can avoid a crash.

If something goes wrong with this process, your car won't stop in time and may cause an accident. Here are some common problems with ABS sensors and how to fix them:

  • The sensor may not be working properly due to contamination or damage
  • The wiring connecting it to the controller may be damaged
  • There might be fluid leaking from around or behind it

In most cases, fixing these problems will require replacing either part of or all of the braking system assembly - including both front and rear discs, pads, calipers and rotors

Can You Fix ABS Sensor? How Much and How to Fix?

There are many possible problems with the brakes and ABS sensors, so it is important to have a mechanic inspect your car before doing anything. Here are 10 common brake sensor problems and how to fix them:

  • Brakes don't work properly
  • The car won't start or stalls on warmups
  • Car will jump when braking (this is an indication of a faulty ABS sensor) - Warning lights come on while braking - Brake pedal feels spongy or mushy

Troubleshooting an ABS Wheel Speed Sensor

There are a few potential problems with an ABS Wheel Speed Sensor and how to fix them.

  • A bad sensor may cause the ABS system to activate prematurely, potentially causing a loss of control or even a crash.
  • The sensor may be clogged with debris or corroded, preventing it from properly transmitting data.
  • The sensor's connector may have been damaged in some way, causing the signal to be lost.

In order for your car's braking system to work properly, all four wheels must be rotating at the same speed. If one of your wheel speed sensors is not working correctly, the ABS (Advanced Braking System) will try and compensate by activating the brakes on that wheel even if it means stopping other wheels from spinning as well - which can lead to accidents.

Here are some common symptoms that might indicate there is a problem with your ABS Wheel Speed Sensor:

  • Your car won't stop when you apply pressure on the brake pedal
  • You feel hesitation when you hit the brakes hard

If you're experiencing any of these issues while driving and suspect that your abs wheel speed sensor is malfunctioning, take it into an authorized dealership for inspection/repair as soon as possible!

Also if you want to know how you can repair brakes by yourself. Follow the link: https://brakeshub.com/how-to-repair-brakes-by-yourself-step-by-step-guide/


What are the ABS brake sensor problems? 

There are a few problems that can occur with ABS brake sensors. One problem is that the sensor can become dirty or covered in debris, which can prevent it from working properly.

Another problem is that the sensor can become loose, which can cause it to give inaccurate readings. Finally, the sensor may simply fail over time due to wear and tear.

How to fix ABS brake sensor problems? 

ABS brake sensors are an important part of a vehicle's braking system, and they can often cause problems if they become damaged or dirty. Here are some tips on how to fix ABS brake sensor problems:

  1. If the ABS sensor is damaged, it will need to be replaced. You can purchase a new sensor from your local automotive parts store.
  2. If the ABS sensor is dirty, you can clean it with a simple household cleaner such as vinegar or window cleaner. Just be sure to disconnect the battery before cleaning the sensor.
  3. If the ABS sensor is not working properly, you may need to reset it. This can usually be done by disconnecting the battery for 30 seconds and then reconnecting it.

What are the causes of ABS brake sensor problems? 

There are three main causes of ABS brake sensor problems:

Dirty or damaged sensors: Over time, dirt, grime and other debris can build up on the sensors, causing them to become damaged or less effective. This can lead to the sensors not being able to properly detect when the brakes are applied, causing the ABS system to malfunction.

Wiring issues: The wires that connect the sensors to the rest of the ABS system can become frayed, broken or otherwise damaged. This can cause intermittent or complete loss of signal from the sensor, again leading to ABS system problems.

Faulty sensors: In some cases, the sensor itself may be defective or have gone bad. This will typically result in a permanent loss of signal from the sensor, rendering the ABS system inoperable.

What are the symptoms of an ABS brake sensor problem? 

Many ABS brake sensor problems can be traced to a dirty or damaged sensor. If the ABS light is on, the first thing you should do is check the sensors for dirt or debris. If they are clean, then check for damage. Cracks, holes, or other damage can prevent the sensor from working properly.

If the ABS light is flashing, it indicates a more serious problem with the sensor. This could be due to a short circuit, an open circuit, or a problem with the wiring harness. If you suspect a problem with the wiring harness, it's best to take your car to a mechanic or dealership for diagnosis and repair.

Other symptoms of an ABS brake sensor problem include intermittent braking, pulsing brakes, and reduced braking power. These problems can be dangerous as they can make it difficult to stop your car in an emergency situation.


If you experience one of the following ten ABS brake sensor problems, it's important to troubleshoot and fix the issue as soon as possible. Doing so will prevent further damage to your vehicle and ensure safe driving.

Rahat Hossain