Vehicle Speed Sensor (VSS)

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 produced by VSS is amplified and converted by VSS buffer assembly. The AC signal is sent to Powertrain Control Module (PCM), cruise control module and speedometer where signal is sent at a rate of 4000 pulses per mile. PCM converts number of pulses per mile to pulses per second to determine speed of vehicle.