Pre-Removal Procedure

NOTE:

If the engine control module (ECM) is replaced with a NEW ECM, the NEW ECM must be updated with the remaining service data retrieved from the OLD ECM.

1. Use a scan tool and retrieve the remaining service data.
2. Record the remaining service data.

If the ECM is replaced, the following procedures must be performed:

NOTE:
The ECM must be reset prior to the removal from the vehicle. Failing to reset the ECM will result in the following:
• Inability to test the ECM for warranty purposes.
• Inability to use the ECM in other vehicles.
1. Perform the ECM reset procedure. Refer to Engine Control Module Programming and Setup .
2. Perform the theft deterrent programming. Refer to Theft Deterrent Module Programming and Setup .