What does VSS fault mean?
1 Answers
1. Meaning of VSS fault: VSS stands for Vehicle Speed Sensor. A VSS fault indicates that the vehicle speed information cannot be transmitted to the instrument cluster via the CAN bus, meaning the speed data is missing or invalid, which may result in the speedometer not displaying the vehicle speed. 2. Principle: The vehicle speed information is transmitted to the instrument cluster through the CAN bus and displayed on the speedometer in either m.p.h (miles per hour) or km/h (kilometers per hour). If this information is missing or invalid, the speedometer will automatically reset to zero. If the tires are changed to non-original sizes, the programming of the Powertrain Control Module (PCM) needs to be updated, which can also be done using a diagnostic tool.