DTC P0111 Intake Air Temperature Sensor 1 Circuit Range/Performance: Trouble Symptom

WARNING: This page is about a different car, the 2012 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Improper idling
Poor driving performance

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

DIAGNOSIS PROCEDURE

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