my windshield wipers do not work. how do you check fuse, or power source orwiper on 2001 Cadillac DeVille DTS

wiper motor ,control stick, fuse how can you tell where the problem comes from?

Check fuses!! Turn key on wipers on HI. wiggle wiper arm back and forth if they start replace motor! Can access wiper motor and tap with small hammer to see if they start, motors give more problems than switch, if no luck after that, see mechanic before replacing any parts!