Pinpoint Test B: No Communication With The Rear Electronic Module (Rem)
WARNING: This page is about a different car, the 2002 Ford Windstar. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Pinpoint Test B: No Communication With Rear Electronic Module (B1)
Courtesy of FORD MOTOR CO.
Fig 2: Pinpoint Test B: No Communication With Rear Electronic Module (B2)