Monitor Scan Tool Data

Ignition "ON" and Engine "OFF".
Disconnect IAT sensor connector.
Connect scan tool and monitor the "INT.AIR TEMP. SNSR (V)" parameter on the scan tool data list.
Specification : Approx. 5V

Fig 1: Monitor Scan Tool Data - INTAKE AIR TEMPERATURE SENSOR
Courtesy of KIA MOTORS AMERICA, INC.
Is displayed IAT data near the specified value?
YES
- Possibility of sensor malfunction. go to "COMPONENT INSPECTION " procedure.
NO
- Possibility of signal circuit short to ground. Go to next step as below.