Monitor Scan Tool Data

Ignition "ON" and Engine "OFF".
Disconnect IATS connector.
Connect scan tool and monitor the "INT.AIR TEMP. SNSR (V)" parameter on the scan tool data list.
Jumper the terminals 1 and 5 of the sensor harness connector together.
Specification : Approx. 0V

Fig 1: Monitor Scan Tool Data - INTAKE AIR TEMPERATURE SENSOR
Courtesy of KIA MOTORS AMERICA, INC.
Is IAT data near the specified value?
YES
- Possibility of sensor malfunction. go to "COMPONENT INSPECTION " procedure.
NO
- Go to next step as below.
Jumper the terminal 5 of the IATS harness connector to chassis ground.
Read "INT.AIR TEMP. SNSR (V)" parameter on the scan tool.
Specification : Approx. 0V
Is displayed IAT data near the specified value?
YES
- Possibility of open in IATS ground circuit, go to "GROUND CIRCUIT INSPECTION " procedure.
NO
- Possibility of open or short to battery in IAT signal circuit. go to "SIGNAL CIRCUIT INSPECTION " procedure.