Vehicle Speed Sensor (VSS)

The VSS is mounted on transaxle case extension housing. VSS produces an AC signal with a frequency proportional to speed at which transaxle assembly output shaft rotates, which is also proportional to vehicle speed. The AC signal is sent to cruise control module by Powertrain Control Module (PCM). The signal is sent at a rate of 4000 pulses per mile, and the PCM converts number of pulses per mile to pulses per second to determine speed of vehicle.