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Home >> Lexus >> 2008 >> LX 570 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - System Descriptions And Testing, On-Vehicle Inspection, Removal And Installation >> Throttle Body >> Inspection
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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 Water By-Pass Hoses And Throttle Body Bolts
      G05150007Courtesy 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 

        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 assembly.

        Fig 2: Identifying Terminals Of Throttle Body Connector
        G05628222Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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