WARNING: This page is about a different car, the 2002 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Power Door Lock Inoperative - Driver Door Diagnostic Tables (1 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying Power Door Lock Inoperative - Driver Door Diagnostic Tables (2 Of 2)