Removal Procedure

NOTE: 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 5 000 km (3,000 mi) from the last engine oil change.

Fig 1: Identifying ECM Electrical Connectors

Courtesy of GENERAL MOTORS CORP.

Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life, if required.
Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (LGD/LZE) .
Remove the left front inner fender brace. Refer to Front Fender Upper Diagonal Brace Replacement .
Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
Disconnect the ECM electrical connectors (2).

Fig 2: View Of ECM And Air Cleaner Lower Housing

Courtesy of GENERAL MOTORS CORP.

Remove the ECM from the air cleaner lower housing.