G6 V6-3.9L VIN 1 (2006)
5. Slide the lever locks to the up position in order to release the connectors.
6. Disconnect the engine harness electrical connectors from the ECM.
7. Release the retaining tab located in the battery box lower half using a small screwdriver or other suitable tool.
8. Remove the ECM by lifting upward after releasing the tab.
INSTALLATION PROCEDURE
1. Slide the ECM into the ECM bracket on the front of the battery box.
2. Push down on the ECM until the retaining tab snaps into place.