Power Door Locks Inoperative - Key Cylinder Switches
WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Power Door Locks Inoperative Symptom Tests - Key Cylinder Switches (Step 1 To 7)
Courtesy of GENERAL MOTORS CORP.
Fig 2: Power Door Locks Inoperative Symptom Tests - Key Cylinder Switches (Step 8 To 11)