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Throttle Body: Inspection

  1. INSPECT THROTTLE BODY ASSEMBLY 
    1. Check that the throttle valve opens and closes smoothly
    2. Check that there is no carbon accumulated around the throttle plate.
      Fig 1: Locating Throttle Body Assembly Hose And Throttle Plate
      G05751899Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      1 (M-) - 2 (M+) 20°C (68°F) 0.3 to 100 Ω

      If the result is not as specified, replace the throttle body.

      Fig 2: Identifying Throttle Body Assembly Connector Terminal
      G05751900Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002