THROTTLE BODY ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY

   
   

   1. Check the throttle control motor operating sound.

      
      

      1. Turn the ignition switch to ON.

      2. When depressing the accelerator pedal, check the operating sound of the throttle control motor. Make sure that no friction noise is emitted from the throttle control motor.

         If any friction noise exists, replace the throttle body with motor assembly.

   2. Check the throttle position sensor.

      
      

      1. Connect the intelligent tester to the DLC3.

      2. Start the engine.

      3. Turn the tester on.

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

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

         Standard Throttle Valve Opening Percentage
         Tester Display Specified Condition A/C switched off 60% or higher

         Note

         
         

         • Make sure that the shift lever is in N or P.

         • Fully depress the accelerator pedal.

         If the percentage is less than 60%, check the throttle body with motor assembly, wire harness and ECM.