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Throttle Body: Inspection

  1. INSPECT THROTTLE BODY ASSEMBLY 
    1. Check the throttle valve.
      1. Check that the throttle valve opens and closes smoothly.
      2. Check that there is no sludge accumulating around the throttle body.
        Fig 1: Locating Bolts, Throttle Body And Gasket
        G05628221Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check the throttle control motor.
      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance 

        STANDARD RESISTANCE SPECIFICATION

        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
        G05628222Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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