WARNING: This page is about a different car, the 2003 Saturn LW300 and 2003 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Engine Control Module (ECM) - C1 Connector Terminals (1 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying Engine Control Module (ECM) - C1 Connector Terminals (2 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 3: Identifying Engine Control Module (ECM) - C2 Connector Terminals (1 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying Engine Control Module (ECM) - C2 Connector Terminals (2 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 5: Identifying Accelerator Pedal Position (APP) Sensor Connector Terminals