Component location : Manual transaxle case
Operation principle : VSS (Vehicle Speed Sensor) is hall sensor type and senses the rotating speed of differential gear.
Function
Comparing engine speed with vehicle speed calculated based on vehicle speed sensor signal, ECM (Engine Control Module) recognizes engaged gear.
Based on the information about engaged gear, ECM performs optimum fuel injection quantity correction.
VSS signal is also used in speed meter of cluster, aircon control module, BCM (Body Control Module), etc.
