Installation Procedure

Install the ECM.

Fig 1: View Of ECM Bolts
Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the ECM bolts.
Tighten: Tighten the engine control module bolts to 8 N.m (71 lb. in.).
Connect the J 1 and J 2 ECM electrical connectors.
Install the outlet resonator/duct assembly into position.
Connect the PCV fresh air vent hose assembly.
Tighten the clamp at the throttle body assembly.
Position the outlet resonator/duct assembly up with the support bracket and install the push-pin.
Tighten the clamp at the air cleaner assembly.
Connect the IAT sensor connector.
Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.

NOTE: If a new ECM is being installed, it must be reprogrammed with new software and calibrations. Refer to Service Stall System (SSS) User Guide for reprogramming procedures. The ECM may be damaged if the reprogramming process is interrupted. Make sure the scan tool is connected securely to the DLC and the vehicle battery has sufficient charge.

IMPORTANT: Ensure the original ECM has the correct VIN and vehicle options.

Program the ECM. Refer to Control Module References in Computer/Integrating Systems.

IMPORTANT: The new ECM must learn the passlock password from the body control module (BCM). When the ECM reprogram is completed, use the Service Stall System (SSS) to perform the ECM Passlock Relearn Procedure.

Perform the Passlock Relearn Procedure using the SSS.
Turn the ignition to OFF for 10 seconds.