Resistance Inspection

Remove air cleaner assembly.
Connect ohmmeter between terminals 5 and 8 of connector.

Fig 1: Identifying Transaxle Electrical Connector Terminals
Courtesy of KIA MOTORS AMERICA, INC.
Measure resistance while warming up ATF (driving vehicle).
Verify that the resistance drops as shown in following table and graph.

Fig 2: Transaxle Oil Temperature Sensor Resistance Chart
Courtesy of KIA MOTORS AMERICA, INC.

Fig 3: Transaxle Oil Temperature Sensor Resistance Graph
Courtesy of KIA MOTORS AMERICA, INC.
If not as specified, replace transaxle fluid temperature sensor and connector wiring as an assembly.
Install air cleaner assembly.