Perhaps the speedometer works intermittently, or you get a code for the speed sensor, such as P0501. Inspect the wiring leading up to the speed sensor and any grounds used by that sensor. If the wiring looks good, replacing the speed sensor should resolve the problem. Can You Drive Without a Speedometer? A speed sensor as a device that measures the number of revolutions or distance traveled per unit of time. One example is the vehicle speed sensor (VSS). You might be wondering, “what does a speed sensor do?” As you probably guessed, the control module monitors the VSS signal to detect how fast the vehicle is traveling. The average cost to replace a transmission speed sensor is about $278 —that accounts for $103 for parts and $175 for the mechanic’s labor costs. The exact repair cost for you will depend on your vehicle, the cost of the part, and how much your shop of choice charges for labor. A speed sensor is an electronic device used in modern automobiles to measure the rotational speed of the engine’s crankshaft, which helps determine the speed at which the vehicle is travelling. This information is used to regulate various aspects of the vehicle’s performance, such as fuel efficiency and emissions control. Quote: Originally Posted by LoneStarFRC. Not sure why you would be referencing the T-56 transmission as the Corvette's VSS is mounted to the differential and not the transmission, but according to the service manual: Speedometer. "The IPC receives a 4000 pulse-per-mile Vehicle Speed Sensor (VSS) input over a dedicated input from the PCM. 466oD.

vehicle speed sensor problems