Pinpoint Test I: No Module / Network Communication - No Power To The Diagnostic Tool
WARNING: This page is about a different car, the 2002 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Pinpoint Test I: No Module / Network Communication - No Power To Diagnostic Tool (I1-I3)
Courtesy of FORD MOTOR CO.
Fig 2: Pinpoint Test I: No Module / Network Communication - No Power To Diagnostic Tool (I4)