Vehicle Speed Sensor Check

Leave the key turned on with the engine still off.

Automotive quality engineer salary in canada. If there is no voltage the sensor may be defective. Your vehicles engine speed sensor or vehicle speed sensor as it is also known sends information to your cars computer about how fast the cars engine is spinning at any particular moment. Install the new sensor into the transmission and replace the retaining bolt.

Test your signal return wire for a lab scope signal. The vehicle speed vss sensor input is used by the pcm to determine vehicle speed. The sensor does this by recording how fast the crankshaft of your vehicle is spinning.

By comparing the input and stored value the pcm calculates vehicle speed. If you want to test it manually you need to unplug the sensor. Dont be confused by other wiring harnesses that may lead down to the wheel such as the brake pad wear sensor.

If your vehicles speedometer stops working or isnt telling you the correct speed that youre traveling you likely have a faulty vss. You can test your vss to make sure its functioning properly by using a device called a multimeter. The vss generates a signal that increases in frequency proportionate to vehicle speed.

Locate the electrical connector from a particular the wheel speed sensor which is near the frame in the wheel well in most cases. Place the sensor on a bench and check the pulsing ac voltage with the voltmeter as you slowly turn the gear by hand. A vehicle speed sensor or vss is a sensor that is used to determine how fast your vehicle is traveling.

Test for any power as well as ground from the computer.