Idle Air Control System Test

Idle Air Control System Test
This test is conducted to check 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 "Decrease" or "Increase" soft key.
7. Control IAC system and check data list.
8. If the data list changes, the IAC Control is normal.
9. Select F0: IAC Control.
10. Push "Decrease" or "Increase" soft key.
11. Control RPM and check data list.
12. If the data list changes, the RPM Control is normal.
13. Select F2: Reset IAC BLM.
14. Push "Reset IAC" soft key.
15. Control IAC Reset and check data list.
16. If data list changes, the IAC has been Reset.