Vehicle Speed Sensor: Description and Operation

Description

The Vehicle Speed Sensor (VSS) is a permanent magnet generator in the transaxle which sends an AC voltage signal to the PCM, which the PCM converts to Miles Per Hour (MPH). This sensor mainly controls the operation of the Torque Converter Clutch (TCC), shift solenoids, and cruise control systems.

Circuit Faults

Refer to DTC P0502 Vehicle Speed Sensor Circuit Low Input or Automatic Transaxle for more information.