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DTC P0111 Intake Air Temperature Sensor 1 Circuit Range / Performance: Wiring Diagram

Fig 1: Mass Air Flow And Intake Air Temperature Sensor - Wiring Diagram
G05002046Courtesy of SUBARU OF AMERICA, INC.
DIAGNOSTIC PROCEDURE CHART

Step Check Yes No
1 CHECK ENGINE COOLANT TEMPERATURE. 
  1. Start the engine and warm-up completely.
  2. 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" in SUBARU SELECT MONITOR .

  • General scan tool

    For detailed operation procedures, refer to the "General Scan Tool Instruction Manual".

Is the engine coolant temperature 75°C (167°F) or higher? 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) .>