ECM Replacement
WARNING: This page is about a different car, the 2011 Chevrolet Volt. However, it is still accessible from the selected car via links, so may be relevant.
If the engine control module (ECM) is replaced, the following procedures must be performed:
- Connect a scan tool to the vehicle and access SPS. Refer to Service Programming System (SPS) .
- Before removing the old control module, perform the SPS function Prepare Control Module for Removal.NOTE: The Prepare Control Module for Removal function can only be performed when communication with the old control module is still possible.
- Replace the ECM.
- Perform the SPS function Engine Control Module - Programming and follow the on-screen instructions.
- Perform the SPS function Engine Control Module - Configuration & Setup and follow the on-screen instructions. On the screen Control Module - Configuration and Setup Function(s), select both control module Configuration/Reconfiguration and the appropriate control module Setup.
- Clear DTCs after completing the programming procedure.
- Ignition ON, engine running.
- If the SPS function Prepare Control Module for Removal could not be performed, perform the following:
Engine Oil Life Remaining. When available, use a scan tool to reset the Engine Oil Life back to the original percentage recorded before the module was replaced.