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Home >> Toyota >> 2025 >> Prius LE >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (P0627-P11EA) >> SFI System >> DTC P111C-62: Control Module Internal Temperature Sensor/Intake Air Temperature Sensor Signal Compare Failure [12/2022 - 03/2023] >> Procedure
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DTC P111C-62: Control Module Internal Temperature Sensor/Intake Air Temperature Sensor Signal Compare Failure [12/2022 - 03/2023]: Procedure

  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P111C-62) 
    1. Read the DTCs and record the Freeze Frame Data.

      Powertrain > Engine > Trouble Codes 

      Result

      Result Proceed to
      P111C-62 and other DTCs are output A
      P111C-62 is output B

      HINT: 

      If any DTCs other than P111C-62 are output, troubleshoot those DTCs first.

    Result: 

    GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [12/2022 - 03/2023] 

    Result: 

    See step  2

  2. CHECK FREEZE FRAME DATA (INTAKE AIR TEMPERATURE AND AMBIENT TEMPERATURE) 

    Pre-procedure1

    • Using the GTS, read the values displayed in the Freeze Frame Data recorded in step 1.

      Powertrain > Engine > DTC (P111C-62) > Freeze Frame Data 

      Tester Display
      Intake Air Temperature
      Ambient Temperature
    • Read the value displayed on the GTS.

      Standard

      GTS Display Specified Condition
      Difference between the Intake Air Temperature and the Ambient Temperature Within 15°C (27°F)

      HINT: 

      When the engine is cold, the value of the intake air temperature, ECM internal temperature and ambient temperature should be approximately the same.

      Result

      Proceed to
      OK
      NG

    Post-procedure1

    • None.

    Result: 

    OK 

    REPLACE ECM 

    Refer to REMOVAL [12/2022 - 03/2023]

    Result: 

    NG 

    REPLACE MASS AIR FLOW METER SUB-ASSEMBLY 

    Refer to REMOVAL [12/2022 - ]