What Are the Reasons Why the Wiper Keeps Wiping Nonstop?
2 Answers
Here are three reasons why the wiper keeps wiping nonstop and their corresponding solutions: 1. The wiper motor circuit is faulty. Solution: Replace the wiper motor circuit. 2. The combination switch is faulty. Solution: Replace the combination switch. 3. The wiper's negative terminal is incorrectly connected. Solution: Reconnect the wiper's negative terminal. How to use the wiper: When there is rain, simply pull the wiper downward. The wiper has the following two functions: 1. To remove raindrops and dust attached to the vehicle's windshield, thereby improving the driver's visibility. 2. To use the wiper to determine the position of the wheels.
Last time my wipers went crazy and wouldn't stop, it turned out to be an internal short circuit in the switch assembly. Nowadays many cars use combination switches for control - when the copper plates inside wear through, they can send erratic signals. Another time I saw an apprentice forget to unplug the diagnostic tool, putting the wipers into service mode where they kept wiping nonstop. Actually, damaged wiring harness insulation grounding near the steering column can also cause this, especially in older cars with cracked rubber boots. This is most terrifying when it happens during rain - I recommend immediately turning off the ignition and restarting. If restarting doesn't work, quickly pull the fuse as a safety measure.