WARNING: This page is about a different car, the 1990 Cadillac Seville and 1990 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.
Since all 4 groups of relays can cause an intermittent condition, see NOTE ON INTERMITTENTS for courtesy light relay, twilight relays, high/low beam relays, or retained accessory power relays.