Can the car still be driven with a VSS malfunction?

[JulietteAnn]

Yes, the car can still be driven. A VSS malfunction is a sensor issue that causes abnormal speedometer readings. It is recommended to have it inspected and repaired at a 4S shop. Function of VSS: The Vehicle Speed Sensor (VSS) transmits the car's speed as an electrical signal to the Electronic Control Unit (ECU). This serves as a reference for controlling engine idle, automatic transmission shifting, torque converter lock-up, engine cooling fan operation, cruise control, and other functions. Types of VSS: Vehicle speed sensors can be categorized into three types: magnetic, Hall-effect, and optical. Typically, there is one speed sensor installed either in the drive axle housing or transmission housing. The VSS signal wire is usually shielded to eliminate electromagnetic and radio frequency interference from high-voltage ignition wires, mobile phones, or other electronic devices. This ensures uninterrupted electronic communication and prevents degraded driving performance or other issues.