WARNING: This page is about a different car, the 2006 Mercury Montego, 2006 Ford Freestyle, and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
SPECIAL TOOLS REFERENCE TABLE
Courtesy of FORD MOTOR CO.
Worldwide Diagnostic System (WDS) Vehicle Communication Module (VCM) with appropriate adapters, or equivalent scan tool
Fig 1: Identifying Parking Aid Sensor Components - Sedan
Courtesy of FORD MOTOR CO.
Fig 2: Identifying Parking Aid Sensor Components - Wagon