Windshield wipers stopped working on 1998 Nissan Sentra. Is it a fuse problem? If so, where is fuse box and which fuse? Is it a motor problem? is this an easy diy fix?

Water can enter and displace the grease in the wiper arm linkage ball joint where the wiper linkage attaches to the wiper motor linkage.

This can result in gradual wear over a period of time inside the joint that could lead to the separation of the wiper linkage assembly from the wiper motor linkage at the ball joint. A loss of windshield wiper function can result when this separation occurs.

To prevent grease from being washed out of the joint, the dealers will modify by adding a water diversion seal that will prevent water from entering the windshield wiper linkage ball joint area.