Wipers Inoperative At Interval Setting
WARNING: This page is about a different car, the 1994 Mercury Tracer and 1994 Ford Escort. However, it is still accessible from the selected car via links, so may be relevant.
Perform WIPER SWITCH TEST. Replace switch if it fails test. If switch is okay, inspect Blue/White wire between wiper switch and wiper motor for open or short. If wire is okay, replace wiper switch.