Throttle Body On-Vehicle Inspection

Check for the throttle control motor operating sounds.

1. Turn the ignition switch to ON.
   

2. When depressing the accelerator pedal, check for operating sounds of the motor. Make sure that no friction noise is emitted from the motor.
   If any friction noises exist, check the throttle body with motor assembly, the wire harness and the ECM.
   

Inspect the throttle position sensor.

1. Warm up the engine.
   

2. Turn the ignition switch off.
   

3. Connect the GTS to the DLC3.
   

4. Turn the ignition switch to ON.
   

5. Turn the GTS on.
   

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

7. Depress the accelerator pedal. When the throttle valve is fully opened, check that the value of "Throttle Sensor Position" is as specified.
   

   Standard:

   Value changes
   

   NOTICE:

   When checking the percentage, the shift lever should be in N (neutral) or P.

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