Speedometer Not Working And ABS Light On; Causes And Fixing

Speedometer Not Working And ABS Light On

Are you experiencing issues with your car’s speedometer not working and the ABS light turning on? This can be a frustrating and potentially dangerous problem, as it can make it difficult to accurately gauge your speed and know when your car’s anti-lock braking system is functioning properly. 

In this article, we will explore the causes of this issue, as well as possible solutions to get your car back on the road safely and efficiently.

What are the causes for the speedometer not working?

There are several potential causes for a speedometer not to work:

  • Faulty speed sensor

The speed sensor, located on the transmission or differential, is responsible for sending a signal to the vehicle’s computer to indicate the speed at which the car is traveling. If the sensor is damaged or malfunctioning, it can cause the speedometer to stop working.

  • Wiring issues

The wiring that connects the speed sensor to the computer or the speedometer gauge can become damaged or corroded, preventing the signal from being properly transmitted.

  • Failing instrument cluster

The instrument cluster, which houses the speedometer gauge, can fail and stop working properly.

  • Computer malfunction

The vehicle’s computer, also known as the Engine Control Module (ECM), can malfunction and cause the speedometer to stop working.

  • ABS problem

As the ABS light is on too, it could be also possible that the problem is related to the ABS system, which could affect the speedometer, as it is being controlled by the same module.

It is important to note that a speedometer not working can be caused by more than one of these issues, and a professional diagnostic will be needed to determine the specific cause.

The speedometer not working how to fix

What are the causes for the ABS light to come on?

There are several possible causes for the ABS light to illuminate, and you have to take note that those causes vary from situation to situation. So it is important to get your vehicle checked by a professional if the ABS light keeps coming ON always while driving. 

  • Faulty ABS sensor

The ABS sensor, which is located on the wheel hub or brake caliper, is in charge of sending a signal to the vehicle’s computer to indicate wheel rotation. If the sensor is damaged or malfunctioning, the ABS light will illuminate.

  • Problems with wiring

 The wiring that connects the ABS sensor to the computer can become damaged or corroded, preventing the signal from being transmitted properly. This can cause the light to illuminate as a warning that the system is malfunctioning.

  • ABS module failure

The ABS module, which controls the ABS system, can fail and cause the light to illuminate. This can occur as a result of software errors, hardware failures, or other internal issues.

  • Low brake fluid

If the brake fluid level is low, the ABS system may malfunction and the light will illuminate. This is due to the fact that the ABS system is dependent on brake fluid to function, and low fluid levels can cause the system to malfunction.

  • Mechanical issues

If the brake system has a problem, such as worn brake pads or rotors, the ABS light may illuminate as a warning.

This is possible because the ABS system monitors the brake system and, if a problem with the brake system is detected, the ABS light will illuminate.

  • General malfunction

The ABS light may illuminate occasionally due to a general malfunction in the car’s computer or electrical system. This can occur if the car’s computer is unable to communicate properly with the ABS system.

ABS Light Stays On, What To Do?

What is the most common problem with ABS systems?

The most common issue with ABS systems is a faulty ABS sensor. The ABS sensor is in charge of monitoring wheel rotation and sending a signal to the ABS module. If the sensor is damaged or malfunctioning, the ABS light will illuminate and the system will not function properly.

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Speedometer Not Working And ABS Light On; What are the causes and how to fix it?

Speedometer Not Working And ABS Light On; Causes And Fixing

When this happens in your vehicle, check the fuses first. Then, see if the brake light switch works. Do the brake lights illuminate when you depress the pedal? Get the ABS system’s trouble codes; a failed wheel speed sensor may be the cause of an ABS/brake light warning and a broken speedometer.

Most likely, an engine sensor is failing and causing the temperature gauge to malfunction (this is usually a separate temp sensor from the one going to the engine computer). 

The majority of auto parts shops will read the codes for you at no cost. I would advise hiring a mobile, qualified mechanic to perform a Check Engine Light is On Inspection.

How to fix it?

The following method may be able to help you resolve the problem. First, check the fuse marked “Anti Lock Brakes” using a light tester. Verify that your ignition key is in the on position. 

Check to see if both terminals display “No light.” Your fuses, which include components like seat heating, anti-lock brakes, and reverse lights, may not be receiving power. 

You might need to “jump power” from a different row of fuses—which are not used other than to provide power when the ignition is on—in order to fix that. 

The light can also be used to check that. The next step is to strip the short wire’s ends and jump it from the top terminal to the top terminal. This should fix your speedometer and odometer, and your ABS light should go out.

Check engine light, Brake light, ABS light, Speedo not working

Can ABS stop your car from driving?

The ABS (Anti-lock Brake System) is intended to help prevent the wheels from locking up when braking, which can cause the vehicle to skid or lose control. 

The system accomplishes this by rapidly applying and releasing the brakes, allowing the wheels to continue spinning. The goal of ABS is to keep the wheels in contact with the road surface rather than to stop the car from driving.

However, if the ABS system fails, the brakes may be applied and released unexpectedly, making it more difficult to control the vehicle and potentially leading to an accident. 

Furthermore, if the ABS light is illuminated, it indicates that the system is malfunctioning and that the vehicle’s braking performance may be compromised, making driving dangerous.

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What are the costs included?

How much does it cost to reset a speedometer?

The cost of resetting a speedometer varies depending on the vehicle and the cause of the problem. In some cases, the problem may be a simple calibration issue that a mechanic can resolve for a low cost. 

The cost may be higher if the problem is caused by a faulty speed sensor or instrument cluster. The cost of a replacement part and labor to install it will be added to the total cost in such cases.

In general, the cost can range between $50 and $200, but it is important to note that the cost can be higher in some cases if the issue is caused by a more complex problem.

How much does it cost to reset an ABS?

The cost of resetting an ABS system varies depending on the vehicle and the cause of the problem. In some cases, the problem may be a simple calibration issue that a mechanic can resolve for a low cost. 

The cost may be higher if the problem is caused by a faulty ABS sensor, a malfunctioning ABS module, or another mechanical issue. The cost of a replacement part and labor to install it will be added to the total cost in such cases.

In general, the cost can range from $100 to $800, but it is important to note that the cost can be higher in some cases if the issue is caused by a more complex problem or if several components must be replaced.

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