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Home >> Lexus >> 2008 >> GX 470 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> Accelerator Pedal >> On-Vehicle Inspection

On-Vehicle Inspection

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  1. INSPECT ACCELERATOR PEDAL POSITION SENSOR 
    1. Connect Techstream to the DLC3.
    2. Turn the ignition switch ON (IG).
    3. Turn the tester on.
    4. Enter the following menus-Select: Powertrain/Engine and ECT/Data List/Accelerator Position No. 1, Accelerator position No. 2.
    5. Operate the accelerator pedal, then check that the Accelerator position No. 1 and Accelerator position No. 2 values are within the specifications.

      Standard: 

      Accelerator position No. 1 

      ACCELERATOR PEDAL CONDITION

      Accelerator Pedal Condition Specified Condition
      Released 0.5 to 1.1 V
      Depressed 2.5 to 4.5 V

      Accelerator position No. 2 

      ACCELERATOR PEDAL CONDITION

      Accelerator Pedal Condition Specified Condition
      Released 1 2 to 2.0 V
      Depressed 3.4 to 5.3 V

      If the Techstream is not available, measure the voltage between the terminals (VPA - EPA, VPA2 - EPA2) of the ECM connector (See TERMINALS OF ECM  ).