Do you know how to test an Abs sensor with a Multimeter? In this blog, we can elaborate on the things and steps that you need to follow. It is also known as a wheel speed sensor. Although, this is an essential component of the anti-lock braking system (ABS). It monitors how fast each wheel turns and transmits this information to the ABS module to intervene when a revolution is about to lock up.

To ensure safe vehicle operation, it is essential to periodically test the ABS sensors with a multimeter. Testing an ABS sensor requires using a digital multimeter, which measures the electrical resistance between two points in the circuit. The multimeter should be set to ohms, and the leads should be connected to either side of the sensor’s connector.

The resistance should read within the manufacturer’s specified range. If the reading is out of range, the sensor must be replaced. In addition, the integrity of the wires leading to the ABS sensor should check to ensure no breaks or shorts. They should be repaired before testing the ABS sensor if any issues are found.

Testing an ABS sensor should be done when:

Many people do ask this question about when to test an abs sensor. The answer is that it should test when any issues with the ABS are suspected or as part of regular maintenance. In addition, a test should also be done if the ABS warning light is illuminated on the vehicle’s dash. Doing so can help identify any problems before they cause more severe ones.

By testing an ABS sensor with a multimeter, you can be sure that it is functioning, which will help to ensure safe vehicle operation. If you are not comfortable performing this test yourself, it may be a good idea to seek help from a professional mechanic with experience working with ABS systems. With proper care and maintenance, your ABS sensor should last many years without any issues.

ABS Sensor Test: What You Need to Have

  • To test an ABS sensor, you will need a digital multimeter
  • Clips (optional, you use the probes alone)
  • Tire jacks
  • ABS reading kit to help you read the ABS codes and know which one needs replacement
  • A wrench
  • Floor carpets
  • Brake set tools
  • Ramps
  • Battery charger

It is easier to read the readings or values on a digital multimeter since they display everything on a screen. The analog ones use pointers, so you must do some calculations. If you wanted to learn about the difference between Fluke and Klein multimeters, you can click here.

How To Test An Abs Sensor With A Multimeter: Step-By-Step Guidance

1. Locate the ABS sensor on your car and disconnect it from the electrical system using a wrench.

2. Use your multimeter to test the resistance of the sensor. Please set it to read ohms, and connect your multimeter leads to either side of the sensor’s connector.

3. If the reading is outside the manufacturer’s specified range, this may indicate that your ABS sensor is faulty and needs to be replaced.

4. Using an analog multimeter, note the pointer position for reference when doing additional readings.

5. Carefully check the wires leading to your ABS sensor for signs of damage or shorts. If you find any issues, repair them before proceeding with further testing.

6. If your ABS sensor passes the resistance test, use a tire jack to lift one wheel and try rotating it manually. If you feel any resistance or the wheel does not spin freely, this indicates that your ABS sensor is faulty and needs to replace.

7. Consult a professional mechanic for help if you are uncomfortable performing further tests independently. With proper care and maintenance, your ABS sensor should last many years without any issues.

Preventive tips:

• If your vehicle has a traction control system, it is essential to disable this feature before proceeding with ABS sensor testing. Otherwise, you risk damaging your ABS.

• It is essential to wear eye protection and protective clothing when performing ABS sensor testing, as there may be debris from the system that could cause injury.

• In addition, be sure to have the necessary tools and spare parts on hand if your ABS sensor needs replacement.

Wrapping up:

Testing an ABS sensor is crucial to maintaining your vehicle’s safety and performance. Using a digital multimeter to test the sensor’s resistance, you can quickly identify any issues and take action to repair or replace the sensor as needed. You should also check for signs of damage or other problems with the wires leading to your ABS sensor, as these can also impact its performance. With proper care and maintenance, your ABS sensor should last many years without any issues.


What is an ABS sensor, and how does it work?

An ABS sensor is a vital part of a vehicle’s anti-lock braking system, designed to improve vehicle safety by helping prevent skidding and traction loss during hard braking. The sensor monitors wheel speed and sends data to a central control unit, which uses this information to activate the anti-lock braking system.

How can I tell if my ABS sensor is faulty or not functioning correctly?

One common sign that your ABS sensor may be faulty or not working as it should is if you notice any resistance or issues with the wheel while manually rotating it. If you suspect your ABS sensor may damage or not working as it should, you can use a multimeter to test the sensor’s resistance and identify any issues.

How do I replace an ABS sensor?

There is no “correct” way to replace an ABS sensor, as the process can vary depending on several factors, including your vehicle model and the specific part that needs to be replaced. You will need to detach the sensor from your vehicle’s electrical system, remove the old part, and install a new ABS sensor. You may also need to take the car to a mechanic or auto body shop for assistance with some more complex steps.