Cooling Fan Inoperative (Low Speed Operates in High Speed)
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: Cooling Fan Inoperative (Low Speed Operates in High Speed) Diagnosis (Steps 1-5)
Courtesy of GENERAL MOTORS CORP.
Fig 2: Cooling Fan Inoperative (Low Speed Operates in High Speed) Diagnosis (Steps 6-12)