Constant Control Relay Module (CCRM)
WARNING: This page is about a different car, the 1994 Mercury Topaz, 1994 Mercury Sable, 1994 Ford Tempo, and 1994 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
See CIRCUIT TEST X in TESTS W/CODES - EEC-IV (3.0L) article in the ENGINE PERFORMANCE section.