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Home >> Lexus >> 2009 >> GS 460 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (Service Information) >> Throttle Body >> On-Vehicle Inspection >> On-Vehicle Inspection

On-Vehicle Inspection

  1. CHECK THROTTLE BODY 
    1. Check the throttle position sensor.
      1. Connect the Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Push the Techstream main switch ON.
      4. Enter the following menus: Powertrain / Engine / Data List / Throttle Sensor Position.
      5. Start the engine.
      6. Depress the accelerator pedal. When the throttle valve is fully opened, check that the value of the "Throttle Sensor Position" is within the specification.

        Standard throttle valve opening percentage

        60% or more

        If the percentage is less than 60%, replace the throttle body.

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