Idle Air Control (IAC) System Test

Idle Air Control System Test

This test is conducted check to IAC system for proper operation.

Tech 2 must be used for this test.

Test Procedure:
1. Connect Tech 2 to the vehicle DLC.
2. Run the Engine at idle.




3. Select F3: Miscellaneous Test in the Application Menu.




4. Select F3: IAC System Test in the Miscellaneous Test.




5. Select F1: IAC Control Test.
6. Push "Increase" or "Decrease" soft key.




7. Control IAC system and check a data list.
- F0: IAC Control

8. Select F1: IAC Reset.
9. Push "Reset IAC" soft key.
10. Control IAC Reset and check data list.




11. If data list changes, the IAC has been Reset.