The OEM speedometer vehicle speed sensor measures the transmission or output or wheel speed through VSS. The engine control module uses this information to modify engine functions, such as ignition timing, air-fuel ratio, gearbox shift points, and initiate diagnostic programs.
Where are these sensors?
The vehicle speed sensor is usually located at the gearbox or drive axle.
Will the faulty vehicle speed sensor turn on the engine light or affect the operation of the vehicle?
Yes, a faulty vehicle speed sensor may illuminate the Malfunction Indicator (MIL) and may cause many different driving performance issues due to the number of tasks involving sensor output.
What are the common reasons for failure?
In addition, to wear, these sensors may also be affected by metal contamination, gear damage, or immersion in water, depending on the location of the connector.
How to determine if these sensors are malfunctioning?
The powertrain control module monitors the VSS to check component failures and circuit problems. The diagnostic code is between P0500 and P0503. You can use a scan tool to check VSS or perform a resistance check.