How do you replace a rear ABS speed sensor

A wheel speed sensor, also called an “ABS sensor,” is part of the Anti-lock Brake System (ABS). It is located on the tires (near the brake rotors for the front tires and in the rear end housing for the rear tires).

Where is the rear wheel speed sensor located?

A wheel speed sensor, also called an “ABS sensor,” is part of the Anti-lock Brake System (ABS). It is located on the tires (near the brake rotors for the front tires and in the rear end housing for the rear tires).

Can I replace ABS sensor myself?

If the ABS speed sensor fails or does not work properly, you can replace it on your own.

How much does it cost to replace a rear speed sensor?

To replace the speed sensor, you are going to pay, on average, between $330 and $380. The labor should only cost you between $80 and $100, while parts will run you about $265.

Is it easy to replace ABS sensor?

Although an illuminated ABS light can mean many things, the most common cause of the warning is a faulty ABS sensor. The good news is, replacing an ABS sensor is usually a straightforward task. In most cases, all you need to complete the job is a jack, jack stands, and basic hand tools.

What happens if I disconnect ABS sensor?

On most vehicles, this is not an issue, but on some — notably pickup trucks — this can lead to lack of stability under heavy braking as the rear brakes lock up early. If unplugging the sensor makes your problem go away, don’t be fooled. … Something in the ABS is making that wheel brake by itself, so get it fixed soon.

Where are the ABS sensors located?

The ABS sensor is typically located in each wheel hub/rotor on a four channel ABS system. Some rear wheel drive applications have the sensor mounted in the rear differential.

What does a rear wheel speed sensor do?

The wheel speed sensor is responsible for relaying the wheel speed to the ECU so that it can tell the ABS system how much pressure to safely apply. When the wheel speed sensor is broken or not working as it should, one of the first things that are affected is the ABS system.

What causes ABS sensors to go bad?

What are the common causes of failure? Typically these sensors will fail as a result of clogging from metallic debris, brake dust or dirt due to exposure to the harsh elements.

Can you drive with a broken speed sensor?

In general, it is unsafe to drive a vehicle with a broken wheel speed sensor. The car’s computer will not be able to determine the speed that your vehicle is traveling, so it might apply the brakes at a faster rate than necessary or increase the engine power.

Article first time published on

Can I drive my car with a broken ABS sensor?

For example, if an ABS sensor has a broken wire, the entire ABS system will be disabled since the initial self-test will not succeed. … The ABS light is yellow for a reason – it indicates that caution should be taken while driving the vehicle, but there is no imminent need to stop.

How long does it take to replace speed sensor?

Remove the old speed sensor. Replace it with a new one. The connector is in a plastic box hanging on the wheel well. 20 minutes.

Can a bad wheel bearing affect abs?

2: Bad Wheel Bearing A wheel bearing isn’t often considered an ABS component, but it directly involves it and if failed, will throw the system into error mode. If a wheel bearing is significantly worn to the point where the wheel can wobble about its axis, more than likely an ABS speed sensor code will be stored.

Can AutoZone read ABS codes?

Unfortunately, the only way to check whether or not the problem is with the ABS is to go and get the codes of your car read. AutoZone can scan your codes as part of our Fix Finder service, or you can do it yourself if you already have a scan tool.

How long do ABS sensors last?

You can expect an ABS sensor to last 30,000 to 50,000 miles. If the sensor does fail, you should receive an ABS warning light on the dash, and your anti-lock braking system will not engage when needed.

How many ABS sensors are on a car?

All modern cars have four ABS wheel speed sensors. one for each wheel.

Do I need to disconnect battery to change ABS sensor?

As when working on all electrical parts within your car, the first step is to ensure that you disconnect your batteries negative terminal. Simply disconnect the nut that holds this in place before sliding the clamp to cut off power to all the ABS sensors.

Is a wheel speed sensor an ABS sensor?

Wheel speed sensors are often also called ABS sensors as they were used in vehicles for the first time when ABS was introduced. Wheel speed sensors can be designed as active or passive sensors, depending on how they operate.

Can I drive without ABS sensor?

If the wheel speed sensor isn’t working, it won‘t send any information to the ECU when there’s a problem. The ABS system won’t know to begin working and you can lose control of your vehicle and cause a crash.

Is it illegal to disable ABS?

technically yes because the car was designed for ABS brakes and that is considered an unsafe condition with the ABS system not working. If the car does not have an ABS system and regular brakes it’s not illegal. But if it has abs and it’s broken that’s considered unsafe.

Can you drive without ABS module?

You can still drive without a functional ABS control module, as long as there’s no problem with your conventional brake system. However, take extra care, especially in wet or slick conditions, as the brakes’ anti-lock element won’t work, and you likely won’t have steering control if your tires lock up.

Can a bad ABS sensor cause brake failure?

The ABS system works in tandem with the rest of the braking system to stop your vehicle quickly under hard braking. A faulty ABS wheel speed sensor can lead to longer braking distances under those situations.

Can an ABS sensor be cleaned?

Cleaning the ABS Sensor With the sensor free, take your rag and wipe the sensor until it’s clean. I prefer not to use any chemicals on the sensor to avoid potential problems. If, however, the sensor is really grungy, use a mild soapy solution and rinse well. … Keep this in mind when working with these sensors.

Can a faulty ABS sensor cause transmission problems?

Occasionally, these sensors can fail or become faulty working intermittently sending inaccurate signals to the ECU. In your case it may be possible that the transmission is receiving a faulty signal from the ABS system.

How much is an ABS sensor?

The average ABS wheel speed sensor replacement cost is between $200 and $400 per sensor, depending on the car model and labor costs. You can expect to pay about $100 to $150 for the wheel speed sensor and another $100 to $300 for the labor.

Does ABS sensor affect speedometer?

No effect unless you are braking and the speedometer indicates a corresponding reduction in speed. Motorcycles with an ABS system use the ABS wheel speed sensor on the front wheel to calculate and display the road speed of the vehicle.