WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Starter Solenoid Does Not Click Diagnosis (Steps 1-8)
Courtesy of GENERAL MOTORS CORP.
Fig 2: Starter Solenoid Does Not Click Diagnosis (Steps 9-21)
Courtesy of GENERAL MOTORS CORP.
Fig 3: Starter Solenoid Does Not Click Diagnosis (Steps 22-34)