Throttle Body On-Vehicle Inspection

Check the throttle control motor operating sounds.

1. Turn the engine switch on (IG).
   

2. When depressing the accelerator pedal, check the operating sound of the running motor. Make sure that no friction noises are emitted from the motor. If friction noise exists, replace the throttle body.
   

Check the throttle position sensor.

1. Connect the intelligent tester to the DLC3.
   

2. Turn the engine switch on (IG).
   

3. Turn the intelligent tester on.
   

4. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Throttle Sensor Position.
   

5. Depress the accelerator pedal. When the throttle valve is fully opened, check that the value of "Throttle Sensor Position" is within the specification.
   

   Standard throttle valve opening percentage:

   60% or more
   

   HINT:

   When checking the standard throttle valve opening percentage, the shift lever should be in N.

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