Throttle Body: Testing and Inspection

CHECK THROTTLE BODY




a. Check the throttle control motor for operating sound.

1. Turn the ignition switch ON.
2. Depress and release the accelerator pedal repeatedly. Check the running sound of the motor. Also, check that there is no friction sound.

If the operation is not as specified, check the throttle control motor, wiring and ECM.

b. Check the throttle position sensor.




1. Connect the hand-held tester to the DLC3.
2. Turn the ignition switch ON.
3. Check that the MIL does not illuminates.
4. Check that the throttle valve opening percentage (THROTTLE POS) of the CURRENT DATA shows the standard value.

Standard throttle valve opening percentage: 60 % or more

If the operation is not as specified, check the throttle control motor, wiring and ECM.