MONITOR Scan tool DATA

Ignition "ON" & 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: Scan Tool Display Screen - INT. AIR TEMP. SNSR(V)
Courtesy of HYUNDAI MOTOR CO.
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.