Reset/Learn Procedure

Reset Procedure - Performed after the throttle body is cleaned or replaced

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

Learn Procedure - Performed after the ECM is programmed or replaced

NOTE:

Do NOT perform this procedure if DTCs are set. Refer to Diagnostic Trouble Code (DTC) List - Vehicle .

1. Engine idling for 3 minutes.
2. Monitor the Desired Idle Speed and the actual Engine Speed with a scan tool.
3. The ECM will start to learn the new idle cells and Desired Idle Speed should start to decrease.
4. Ignition OFF for 60 s.
5. Engine idling for 3 minutes.
6. After the 3 minute run time the engine speed should return to normal.
   NOTE:

   During the drive cycle monitor the DTC information with a scan tool to verify DTC P0506 and P0507 do not set. If DTC P0506 and P0507 set, clear the DTCs so the ECM can continue to learn.

   • If the engine idle speed has not been learned the vehicle will need to be driven at speeds above 70 km/h (44 mph) with several decelerations and extended idles.
7. After the drive cycle, the engine speed should return to normal.
   • If the engine idle speed has not been learned, turn OFF the ignition for 60 s and repeat step 6.
8. Once the engine speed has returned to normal, clear DTCs and return to the diagnostic that referred you here.