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Inspection [10/2018 - 07/2022]: Procedure

  1. INSPECT MASS AIR FLOW METER 
    1. Perform a visual check for any foreign matter on the temperature sensor (thermistor) of the mass air flow meter shown in the illustration.
      GTY751838Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Thermistor

      OK

      There is no foreign matter.

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

    2. Measure the resistance according to the value(s) in the table below.
      GTY753179Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Mass Air Flow Meter)

      Standard Resistance

      Tester Connection Condition Specified Condition
      4 (THA) - 2 (E2G) -20°C (-4°F) 13.6 to 18.4 kΩ
      20°C (68°F) 2.21 to 2.69 kΩ
      60°C (140°F) 0.49 to 0.67 kΩ

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