Speedometer

The speedometer is a road speed indicator. All Instrument Clusters are equipped with both a trip odometer and a season odometer. A Vehicle Speed Sensor (VSS) (permanent magnet generator) located on the transaxle inputs to the Powertrain Control Module (PCM) whenever the transaxle differential carrier turns. The Powertrain Control Module (PCM) then buffers the Vehicle Speed Sensor (VSS) signal and transmits it to the Instrument Cluster, the Electronic Brake Control Module (EBCM), and the Inflatable Restraint Sensing and Diagnostic Module (SDM) at 4000 pulses/mile via a hardwired connection (CKT 817).