Windshield wipers are on Fuse #2 with the Cigar Lighter and Horn. If these work, the fuse is OK.
The wipers are tied into the Ignition Key. Wipers will not work unless the key is turned on.
Problem areas could be Multi Function Switch, wiper shafts "frozen", Wiper Motor.
The wipers are moved by inner arms which have articulating angles...maybe jambed from corrosion.
Richard M, NYC