Throttle Body On-Vehicle Inspection

Check the throttle control motor operating sound.

1. Turn the ignition switch ON.
   

2. When pressing the accelerator pedal, check the operating sound of the running motor. Make sure that no friction noises emit from the motor.
   If friction noise is heard, replace the throttle body.
   

Check the throttle position sensor.

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch ON.
   

3. Under Current Data, check that the throttle valve opening percentage (Throttle Pos) is within the standard.
   

   Standard throttle valve opening percentage:

   60% or more
   

   NOTICE:

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

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

Inspect the air assist system.

1. Start the engine and check that the malfunction indicator lamp does not illuminate.
   

2. Warm up the engine to the normal operating temperature.
   

3. Turn the A/C compressor from ON to OFF and check the idle speed.
   

   Standard idle speed (gear position is neutral):

   650 to 750 rpm
   

   NOTICE:

   Perform this inspection without any electrical load on the vehicle.