WARNING: This page is about a different car, the 2002 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Diagnostic Routines 257/357 - Other Concerns: Overheating (1 Of 2)
Courtesy of FORD MOTOR CO.
Fig 2: Diagnostic Routines 257/357 - Other Concerns: Overheating (2 Of 2)