My fuse board did the exact same thing as your's--even the same relay! I
drove around for about 6 months without fixing it until I went out on a date
and my fan would not shut off (very embarrassing situation when you're trying
to impress a girl.) As I have just found out, I've misplaced the receipt
but I do know that I paid $205 for my mechanic to replace the fuse board with
a new one. I really should've done it myself, but didn't have the time.
Jesse Almero, Jr.
1986 GT Coupe
P.S. How are those tail lights doing?