DTC P0111: Intake Air Temperature Sensor Range/Performance Problem: Trouble Symptom

Improper idling
Poor driving performance

CAUTION: After servicing or replacing faulty parts, perform Clear Memory Mode < Ref. to OPERATION , Clear Memory Mode. >, and Inspection Mode < Ref. to PROCEDURE , Inspection Mode. >.

DTC PROCEDURE

Step	Check	Yes	No
1 CHECK ENGINE COOLANT TEMPERATURE. Start the engine and warm up completely. Using the Subaru Select Monitor or a general scan tool, measure the value in «Coolant Temp.». NOTE: Subaru Select Monitor For detailed operation procedures, refer to "READ CURRENT DATA FOR ENGINE". < Ref. to SUBARU SELECT MONITOR . > General scan tool For detailed operation procedures, refer to the general scan tool operation manual.	Is the value of «Coolant Temp.» 75°C (167°F) or more?	Replace the mass air flow and intake air temperature sensor. < Ref. to MASS AIR FLOW AND INTAKE AIR TEMPERATURE SENSOR . >	Check DTC P0125 using "List of Diagnostic Trouble Code (DTC)". < Ref. to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . >