WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Powertrain Control Module (PCM) 3.1 L (LG8) Scan Tool Data List
Courtesy of GENERAL MOTORS CORP.
Fig 2: Powertrain Control Module (PCM) 3.8 L Scan Tool Data List