What's the reason for the sudden failure of the windshield wiper?

[VonWilliam]

If the wiper cannot move, it indicates a malfunction. You can try opening the hood to check if the transmission linkage is dislocated or inspect whether the fuse is intact. If the fuse is intact but there is no voltage at the motor, check the wiring and the turn signal combination switch for any issues. Generally, a burnt motor will emit a burnt smell. If there is normal voltage at the wiper motor when the power is turned on, the motor may be damaged. Wiper maintenance methods: 1. When using the wiper to remove dust from the windshield on sunny days, always spray windshield washer fluid and avoid dry wiping. 2. To ensure good wiping performance, use the designated windshield washer fluid and never use plain water as a substitute. 3. If there are other stubborn or hard contaminants on the glass, remove them manually.