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 for DTC P0125. < refer to DTC P0125 INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP FUEL CONTROL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >