Component Inspection

Ignition "OFF".
Remove "TRANSAXLE RANGE SWITCH"
Measure continuity (resistance) between each terminals of the sensor
1. Specification : approx. 0 Ω
  
  Fig 1: Measuring Continuity Between Transaxle Range Switch Sensor Terminals
  Courtesy of KIA MOTORS AMERICA, INC.
  
  Fig 2: Transaxle Range Switch Continuity Chart
  Courtesy of KIA MOTORS AMERICA, INC.
Is resistance within specifications?
YES
1. Substitute with a known-good PCM/TCM and check for proper operation. If the problem is corrected, replace PCM/TCM as necessary and Go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
1. Replace "TRANSAXLE RANGE SWITCH" as necessary and Go to "VERIFICATION OF VEHICLE REPAIR " procedure