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Where are the speed sensors located?

Speed sensors are critical components in modern vehicles, responsible for monitoring and transmitting information about the vehicle's speed. These sensors are strategically placed throughout the vehicle to provide accurate and real-time data to the vehicle's onboard computer system.


Locations of Speed Sensors


Speed sensors are typically located in the following areas of a vehicle:



  • Wheel Speed Sensors: These sensors are mounted near each wheel, often on the wheel hub or brake assembly. They detect the rotational speed of the wheels, which is then used to calculate the vehicle's overall speed.

  • Transmission Speed Sensors: These sensors are located within the transmission, monitoring the rotational speed of the input and output shafts. This information is used to determine the vehicle's speed and gear position.

  • Driveshaft Speed Sensors: In some vehicles, additional speed sensors may be placed on the driveshaft to provide a secondary source of speed data, especially in four-wheel-drive or all-wheel-drive systems.


The specific number and placement of speed sensors can vary depending on the make, model, and year of the vehicle, as well as the vehicle's drivetrain configuration.


Importance of Speed Sensors


Speed sensors play a crucial role in the proper functioning of a vehicle's systems, including:



  • Speedometer and Odometer: The speed sensors provide the data necessary for the speedometer to display the vehicle's current speed and the odometer to track the total distance traveled.

  • Traction Control and Stability Control: These systems rely on speed sensor data to detect and prevent wheel slippage, improving the vehicle's handling and stability.

  • Cruise Control: Speed sensors allow the cruise control system to maintain a consistent speed, even on varying terrain or inclines.

  • Antilock Braking System (ABS): The ABS system uses speed sensor data to detect and prevent wheel lockup during braking, ensuring the wheels continue to rotate and maintain traction.


Accurate and reliable speed sensor data is essential for the proper operation of these and other vehicle systems, ensuring a safe and comfortable driving experience.

How much does it cost to replace a speed sensor?


$62-$78. The average cost to replace your Wheel Speed Sensor is $62 - $78. Pricing may vary based on the type of car you have, as well as the type of (and quality) auto shop that you go to.



How many speed sensors are on a car?


Modern vehicles have four wheel speed sensors—one for each wheel of your car.



Can I drive my car with a bad speed sensor?


No harm to car, just be careful because it's driving without any safety systems on most cars. Is your traction and abs disabled? In bad conditions that can be deadly on RWD high HP car.



What happens when the speed sensor goes bad?


A bad speed sensor can cause transmission issues and erratic speedometer ratings. A malfunctioning sensor will render the transmission torque converter unable to apply the clutch and form a mechanical link between the engine and transmission. This may also cause your vehicle's cruise control to be disabled.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.