WARNING: This page is about a different car, the 2003 Lincoln Aviator. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Pinpoint Test J: The Dual Electronic Automatic Temperature Control (DEATC) Module Does Not Respond To The Diagnostic Tool (Steps J1 & J2)
Courtesy of FORD MOTOR CO.
Fig 2: Pinpoint Test J: The Dual Electronic Automatic Temperature Control (DEATC) Module Does Not Respond To The Diagnostic Tool (Steps J2 Cont. & J3)