Pinpoint Test B: No Communication With The Rear Electronic Module (Rem)-Unable To Carry Out The Rear Electronic Module (Rem) Self-Test
WARNING: This page is about a different car, the 2003 Ford Windstar. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The ignition switch must be cycled from OFF to RUN to enable the Switched System Power feature. Switched System Power will remain active for 30 minutes after the ignition switch is turned OFF.