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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 70 (Engine Control System (A25A-FXS) - Diagnostic Codes (P0110-P0125)) >> SFI System >> DTC P0110-11: Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Ground [10/2022 - 11/2023] >> Procedure

DTC P0110-11: Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Ground [10/2022 - 11/2023]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. READ VALUE USING GTS (CHECK FOR SHORT IN WIRE HARNESS) 
    GTY877227Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    *1 Mass Air Flow Meter Sub-assembly
    *2 ECM
    1. Disconnect the mass air flow meter sub-assembly connector.
    2. According to the display on the GTS, read the Data List.

      Powertrain > Engine > Data List 

      Tester Display
      Intake Air Temperature

      OK

      GTS Display Specified Condition
      Intake Air Temperature -40°C (-40°F)

      HINT: 

      Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.

      Refer to INITIALIZATION [10/2021 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MASS AIR FLOW METER SUB-ASSEMBLY 

    Refer to REMOVAL [12/2019 - ]

    Result: 

    NG 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM) 
    1. Disconnect the mass air flow meter sub-assembly connector.
    2. Disconnect the ECM connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      C30-4 (THA) or C55-102 (THA) - Body ground and other terminals Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECM 

    Refer to REMOVAL [10/2022 - 11/2023]

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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