What Causes Windshield Wipers to Stop Working?
2 Answers
Windshield wipers may stop working primarily due to a blown fuse, faulty wiper relay, wiring issues, or a malfunctioning wiper motor. Below is more information about windshield wipers: 1. The power source for windshield wipers comes from the motor, which is the core of the entire wiper system. The quality requirements for the wiper motor are quite high, typically utilizing a DC permanent magnet motor. 2. The wiper motor is usually integrated with a worm gear mechanical assembly. The worm gear mechanism serves to reduce speed and increase torque, with its output shaft driving a four-bar linkage that converts continuous rotary motion into a side-to-side oscillating movement.
Hey, last time I encountered a car in the shop where the wipers just stopped working. Don’t panic—it’s probably a blown fuse. Just pop open that black box on the left side of the engine bay to check. If the washer fluid sprays but the wipers don’t move, it’s likely the motor’s gone bad. Try feeling near the base of the wiper arm to listen for any humming sound. For older cars, watch out for rusted or seized wiper linkage. Another possibility is oxidized contacts in the switch—I’ve taken apart a few steering column combo switches, and the copper strips inside were all blackened. Oh, and have you messed with the wiring recently? Improper wiring can fry the control module.
