Engine Control Module: Installation
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
To install ECM into vehicle, reverse removal procedure. Connect harness connectors to ECM. Reconnect negative battery cable. If NEW ECM has been installed, ECM MUST be programmed. See COMPUTER RELEARN PROCEDURES - DOMESTIC article in GENERAL INFORMATION.