P0112

Wiring Diagram:

CIRCUIT DESCRIPTION
Located on the air cleaner, this sensor measures the temperature of the intake air and converts its change into that in resistance through the thermistor like the ECT sensor.

By monitoring the resistance of the IAT sensor, ECM (PCM) detects the intake air temperature and use it as one of the signals to control IAC valve, EGR valve, fuel injectors and ignition timing.

DTC Detecting Condition And Trouble Area:

DTC CONFIRMATION PROCEDURE
1. Connect scan tool to DLC with ignition switch OFF.
2. Turn ON ignition switch and clear DTC, pending DTC and freeze frame data by using scan tool and run engine at idle speed and engine coolant temp. 110 °C (230 °F) or lower for 10 sec. or more.
3. Check DTC by using scan tool.

Step 1 - 3:

TROUBLESHOOTING