Installation Procedure

Install the ECM module (2) into the retaining bracket.

Fig 1: Engine Control Module (ECM)
Courtesy of GENERAL MOTORS COMPANY
Install the ECM connectors (1) to the ECM module (2).

Fig 2: Engine Control Module (ECM) Connectors And ECM Module
Courtesy of GENERAL MOTORS COMPANY
Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .