THROTTLE BODY ON-VEHICLE INSPECTION


  1. INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY


    1. Listen to the throttle control motor operating sounds.


      1. Turn the ignition switch to ON.

      2. When depressing the accelerator pedal, listen to the running sounds of the motor. Make sure no friction noises come from the motor.

        If friction noises exist, check the throttle body with motor, wire harness and ECM.

    2. Inspect the throttle position sensor.


      1. Warm up the engine.

      2. Turn the ignition switch off.

      3. Connect the intelligent tester to the DLC3.

      4. Turn the ignition switch to ON.

      5. Turn the intelligent tester on.

      6. Enter the following menus: Powertrain / Engine and ECT / Data List / Throttle Position.

      7. Depress the accelerator pedal. When the throttle valve is fully opened, check that the Throttle Position value is within the specified range.

        Standard
        60% or more

        Note

        When checking the standard throttle valve opening percentage, make sure the transmission is in neutral.

        If the result is not as specified, check the throttle body with motor, wire harness and ECM.