Powertrain Control Module: Installation
WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
Connect harness connectors to PCM. Tighten PCM harness connector fasteners to specification. See TORQUE SPECIFICATIONS . Slide PCM retainer into PCM bracket slots. Pull the PCM retention bar into position. Reconnect negative battery cable. If NEW PCM has been installed, PCM MUST be programmed. See COMPUTER RELEARN PROCEDURES - GENERAL MOTORS article in GENERAL INFORMATION.