On-Vehicle Inspection

1. Listen to the throttle control motor operating sound.
   1. Turn the ignition switch ON.
   2. When turning the accelerator pedal position sensor lever, check the running sound of the motor. Also, check that there is no friction noise.
2. Inspect the throttle position sensor.
   1. Connect the hand-held tester or OBD II scan tool to the DLC3.
   2. Turn the ignition switch ON.
   3. Check that the MIL does not illuminate.
   4. Check that the throttle valve opening percentage (THROTTLE POS) in the DATA LIST snows the standard value.

   Standard throttle valve opening percentage: 60% or more 

1. After turning ignition switch ON, check the DATA LIST and verify that the throttle position sensor voltage is within specifications.

Standard voltage: 0.6 to 1.0 V 

1. Connect the hand-held tester or OBD II scan tool to the DLC3.
2. Turn the ignition switch ON.
3. Start the engine and let it warms up.
4. Connect the hand-held tester and select the VVT from the ACTIVE TEST menu.
5. Monitor the engine speed when the OCV is operated with the hand-held tester.

   Standard: 

   VVT system is OFF (OCV is OFF): Normal engine speed 

   VVT system is ON (OCV is ON): Rough idle or engine stalled