Where is a vehicle speed sensor located
Nathan Sanders
Published Mar 26, 2026
The vehicle speed sensor is typically located at the transmission or transaxle.
What happens when a vehicle speed sensor goes bad?
One of the most common signs of a bad speed sensor is abnormal automatic transmission operation. If the VSS is faulty, the transmission may exhibit symptoms such as delayed shifts, hard shifts, and limited gear operation.
Can you drive with a bad speed sensor?
Can you drive with a bad 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.
Where is speed sensor on transmission?
Locate the transmission speed sensors, they’ll be near the front and rear of the transmission housing. Consult the repair manual for your car. Place bucket or oil drain pan underneath the sensor, there will be some oil that drains out.How much does it cost to replace a 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.
Can you repair a speed sensor?
Transmission speed sensors cannot be repaired, only replaced. While transmission speed sensor failure is not uncommon, many other problems can present similar systems such as ABS sensor failures. A full professional inspection will be needed to determine the actual cause of the problem.
Can a speed sensor be cleaned?
The various components of the speed sensors can gather dirt from the road and from the dust that is generated by constant sharp braking. Speed sensors need to be cleaned on a regular basis to avoid damaging the anti-lock braking system.
Does the speed sensor control the odometer?
Primarily, the wheel speed sensors from the ABS system are used along with a vehicle speed sensor. Some cars also have a transmission output shaft speed sensor. This is important because the error that causes the speedometer not to work may not affect the mileage. In my experience, it usually does not.What makes a speed sensor 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 a bad speed sensor cause limp mode?When the wheel speed sensor is faulty and sends wrong or inaccurate information to traction control and the ABS system, the car’s computerized systems will suspect and activate a “safe mode.” In such cases, the wheel speed sensor cannot be said to put your car in limp mode.
Article first time published onCan a bad wheel speed sensor cause transmission problems?
Without a valid speed signal from these sensors, the PCM will not be able to correctly control the shifting of gears within the transmission. This may cause the transmission to shift rough or quicker than normal.
How many speed sensors do cars have?
A car has two speed sensors: the ISS and the OSS, working together to show the transmission data to the car’s powertrain module. The ISS sensor monitors the input shaft’s speed. If these sensors get misaligned, the operation of the transmission system will be affected.
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.
How long does a speed sensor last?
There’s no hard-and-fast rule to help you predict how long your wheel speed sensor is going to last. Unlike a brake light switch or brake caliper that can last as long as your vehicle, you can expect your transmission speed sensor to last between 30,000 and 50,000 miles.
How do you replace a transmission speed sensor?
- 1) Loosen and remove negative battery cable.
- 2) Locate the faulty speed sensor and disconnect the speed sensor connector.
- 4) Check the connector wiring to insure there are no breaks or exposed wire. …
- 5) Verify O-ring is installed on new sensor.
- 6) Install and tighten new sensor.
How do I reset limp mode?
If your vehicle goes in limp mode while driving, find a safe place to stop and restart the engine. Allow the car to stay completely off for at least one minute before you restart it. In many cases, an engine restart will reset the limp mode and allow the vehicle to operate normally.
What does limp mode mean?
Also known as ‘limp home mode‘, limp mode is a security feature in cars which activates when the engine or transmission control unit picks up a fault. Once it detects a problem, limp mode will cause the less important parts of the car, such as air conditioning, to switch off, and the speed of the car will be reduced.
Can you drive without wheel speed sensors?
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.
Which speed sensor controls the speedometer?
The output speed sensor measures how fast a vehicle moves and sends that information to other vehicle systems. The transmission control unit uses the speed to determine when to change gears, adjust the torque converter and display the vehicle’s speed in the speedometer.