Description And Operation: Description

Component location:  Manual transaxle case

Courtesy of KIA MOTORS AMERICA, INC.

Operation principle:  Vehicle Speed Sensor (VSS) 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 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, A/C control module, BCM, etc.