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Inspection [09/2014 - ]: Procedure

  1. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY 
    1. Perform a visual check for any foreign matter on the platinum hot wire (heater) of the mass air flow meter shown in the illustration.
      GTY403463Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK

      There is no foreign matter.

      TEXT IN ILLUSTRATION

      *1 Platinum Hot Wire (Heater)

      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.
      GTY406924Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      1 (THA) - 2 (E2) -20°C (-4°F) 13.6 to 18.4 kΩ
      1 (THA) - 2 (E2) 20°C (68°F) 2.21 to 2.69 kΩ
      1 (THA) - 2 (E2) 60°C (140°F) 0.49 to 0.67 kΩ
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Mass Air Flow Meter Sub-assembly)

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