Component Inspection

IG KEY "OFF", ENGINE "OFF".
Disconnect the vehicle speed sensor connector.
Disconnect the vehicle speed sensor and driven gear.
Check the wear of spline (A).

Fig 1: Locate Wear Of Spline
Courtesy of KIA MOTORS AMERICA, INC.
Check rotating state of vehicle speed sensor driven gear.
Connect the vehicle speed sensor connector and IG KEY "ON".
Rotate the driven gear with hand.
Specification: Vehicle Speed Signal generates.