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Home >> Lexus >> 2012 >> HS 250h >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Service Information) >> Throttle Body >> On-Vehicle Inspection >> On-Vehicle Inspection
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On-Vehicle Inspection

  1. INSPECT THROTTLE BODY ASSEMBLY 
    1. Check for throttle control motor operating sound.
      1. Turn the power switch on (IG).
      2. When depressing the accelerator pedal, check the operating sound of the motor. Make sure that no friction noises are emitted from the motor. If any friction noise exists, replace the throttle body assembly.
    2. Set the vehicle to inspection mode. Refer to INSPECTION MODE PROCEDURE .
    3. Start the engine and check that the MIL is not illuminated. After the engine is warmed up, check that the idle speed is within the specified range when the A/C is switched off.

      Standard

      Condition Engine Idle Speed
      A/C switched off 850 to 950 rpm
      NOTE:
      • Be sure to perform this step with all accessories off.
      • Make sure that park (P) is selected.