LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2014 >> Highlander XLE, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Engine Control System (2GR-FKS) (Service Information) (Except Hybrid)) >> Mass Air Flow Meter >> On-Vehicle Inspection [11/2016 - ] >> Procedure

On-Vehicle Inspection [11/2016 - ]: Procedure

WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY 

    HINT: 

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

    Refer to INITIALIZATION [11/2016 - ]

    1. Read the value of Data List item "Mass Air Flow Sensor" using the Techstream.
      NOTE:
      • Perform the inspection with the vehicle indoors and on a level surface.
      • Perform the inspection of the mass air flow meter sub-assembly while it is installed to the air cleaner cap sub-assembly (installed to the vehicle).
      1. Connect the Techstream to the DLC3.
      2. Turn the ignition switch to ON.
      3. Turn the Techstream on.
      4. Start the engine and warm it up until the engine coolant temperature 75°C (167°F) or higher with all the accessories switched off.
      5. Enter the following menus: Powertrain / Engine / Data List / Mass Air Flow Sensor.

        Powertrain > Engine > Data List 

        Tester Display
        Mass Air Flow Sensor
      6. According to the display on the Techstream, read the Data List when the engine is running.

        Standard Condition

        Techstream Display Condition Specified Condition
        Mass Air Flow Sensor Idling (engine warmed up) 2.0 to 5.0 gm/sec
        2000 rpm (without load) 18.0 to 22.0 gm/sec
        3000 rpm (without load) 28.0 to 34.0 gm/sec

        If the result is not as specified, replace the mass air flow meter sub-assembly.

        If the result is within the specified range, remove and inspect the mass air flow meter sub-assembly.

        Refer to INSPECTION [11/2016 - ] 

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

      Refer to INITIALIZATION [11/2016 - ]