Notice: Always turn the ignition off when installing or removing the ECM connectors in order to prevent damage to the components.

Important: It is necessary to record the remaining engine oil life. If the replacement module is not programed with the remaining engine oil life, the engine oil life will default to 100 percent. If the replacement module is not programmed with the remaining engine oil life, the engine oil will need to be changed at 5000 km (3,000 mi) from the last engine oil change.

1. Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.



2. Turn the ignition OFF.

Important: Ensure that there is no main relay circuit voltage (ECM Fuse).

3. Use a DVOM in order to measure the main relay circuit voltage at the engine control module (ECM) fuse in the underhood fuse block. Refer to Electrical Center Identification Views.
4. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.
5. Remove the ECM fuse in the underhood fuse block. Refer to Electrical Center Identification Views.
6. Remove the transmission control module/instrument panel cluster (TCM/IPCM) fuse in the underhood fuse block. Refer to Electrical Center Identification Views.
7. Remove the ECM/TCM fuse in the underhood fuse block. Refer to Electrical Center Identification Views.
8. Unlock the body side (outboard) ECM electrical connector.

8.1.	Depress the ECM electrical connector lever lock (1).

8.2.	Simultaneously rotate the ECM connector clamp lever and depress the lock slide (2).

Notice: In order to prevent any possible electrostatic discharge damage to the ECM, do not touch the connector pins.




9. Remove the body side (outboard) ECM connector.



10. Unlock and remove the engine side (inboard) ECM connector.



11. Remove the ECM redundant ground wire and bolt from the ECM.



12. Remove the ECM bolts.
13. Remove the ECM.



14. If necessary, perform the following steps:

14.1.

Remove the ECM bracket bolts.

14.2.

Remove the ECM bracket.

1. Install the ECM bracket, as necessary.

Notice: Refer to Fastener Notice in the Preface section.

2. Install the ECM bracket bolts.

Tighten
Tighten the ECM bracket bolts to 10 N·m (89 lb in).





Notice: In order to prevent any possible electrostatic discharge damage to the ECM, do not touch the connector pins.

3. Install the ECM.
4. Install the ECM bolts.

Tighten
Tighten the ECM bolts to 10 N·m (89 lb in).




5. Install the ECM redundant ground and bolt to the ECM.

Tighten
Tighten the ECM redundant ground wire bolt to 5 N·m (44 lb in).




6. Install the engine side (inboard) ECM connector.



7. Install the body side (outboard) ECM connector.
8. Install the ECM/TCM fuse in the underhood fuse block. Refer to Electrical Center Identification Views.
9. Install the TCM/IPC fuse in the underhood fuse block. Refer to Electrical Center Identification Views.
10. Install the ECM fuse in the underhood fuse block. Refer to Electrical Center Identification Views.
11. Connect the battery negative cable to the battery. Refer to Battery Negative Cable Disconnection and Connection.
12. Program the ECM. Refer to Service Programming System (SPS).
13. Turn OFF the ignition for at least 5 seconds after the programming event is complete.
14. Perform the idle learn procedure. Refer to Idle Learn.
15. Use the scan tool to clear all DTCs.
16. Refer to Control Module References for programming and setup information.