Throttle Learn

Scan Tool Idle Learn or Idle Learn Reset Procedure - Performed after the throttle body is cleaned or replaced

1. Ignition ON, engine OFF, perform the Idle Learn or Idle Learn Reset in Configuration/Reset or Module Setup.
2. Engine idling, verify the scan tool Throttle Body Idle Airflow Compensation value is equal 0% and the engine is idling at a normal idle speed.
3. Clear the DTCs and return to the diagnostic that referred you here.

Service Bay/On Road Idle Learn Procedure - Performed after the ECM is programmed or replaced

NOTE:

Do NOT perform this procedure if any DTCs are set.

1. Engine idling for 3 min.
2. The ECM will start to learn the new idle cells and the scan tool Desired Idle Speed should start to decrease.
3. Ignition OFF for 60 s.
4. Start and idle the engine for 3 min.
5. Verify the engine is idling normally.
   • If the engine idle is not correct 
   NOTE:

   During the drive cycle the check engine light may come on with idle speed DTCs. If idle speed codes are set, clear codes so the ECM can continue to learn.

   1. Operate the vehicle at speeds above 70 km/h (44 mph) with several decelerations and extended idles.
   2. Verify the engine is idling normally.
      • If the engine idle is not correct.

        Ignition OFF for 60 s, repeat step 5.1.

      • If the engine idle is correct.
   3. Clear any DTCs and return to the diagnostic that referred you here.
   • If the engine idle is correct 
6. Clear any DTCs and return to the diagnostic that referred you here.