Why Won't the Car Wiper Stop?

[SanCamille]

Here are the reasons why the car wiper won't stop: 1. The wiper keeps running continuously, which may be a wiring issue; 2. It could be due to a damaged combination switch; 3. There might be a break in the wiring that causes the wiper's negative terminal to connect with the car body. Additional information: 1. The power source of the wiper comes from the motor, which is the core of the entire wiper system. The quality requirements for the wiper motor are very high. It uses a DC permanent magnet motor, and the wiper motor installed on the front windshield is usually integrated with the worm gear mechanical part. 2. The worm gear mechanism serves to reduce speed and increase torque. Its output shaft drives a four-bar linkage mechanism, which converts continuous rotational motion into a left-right oscillating motion. The working principle of the wiper circuit is different from other electrical circuits. Other electrical appliances turn off the positive terminal (commonly known as the live wire).

[SanJulia]

I've encountered a similar issue before when my wipers wouldn't stop wiping. After checking, I found the wiper switch was stuck, probably due to internal wear or moisture ingress keeping it constantly powered. Another common culprit is a faulty relay - that component controls circuit switching, and if it gets stuck, the wipers won't stop. Wiring shorts are also possible, especially if the wires near the wiper motor have aged and exposed insulation. I'd suggest first trying to temporarily cut power by pulling the fuse, but make sure to do this in a safe location. If that doesn't work, check if the battery voltage is abnormally high, as excessive voltage can damage the motor controller. Driving with non-stop wipers in rain is extremely dangerous due to impaired visibility - I once had to tape the wiper arms in place just to make it to the repair shop. For maintenance, I recommend regular cleaning of the wiper system and avoiding prolonged use in humid conditions. These minor faults can accumulate into more serious accidents, so don't delay repairs.

[SanErin]

I find that non-stop wipers are usually related to electrical circuits, especially the wiper motor or controller. If there's a short circuit inside the motor, it will keep running, and if the control box is damaged, the signals get messed up. Also, the relay, which is responsible for switching the current, can cause the circuit to stay continuously on if it's burnt or stuck. In terms of wiring, loose or corroded connections might trigger continuous operation on bumpy roads. When dealing with such issues, my first move is to turn off the car to prevent draining the battery or causing sparks. If you're doing it yourself, check the fuse—its location is marked in the manual near the driver's seat—and pulling it out can cut the power. Remember to clean the wiper connections during regular maintenance to avoid debris buildup. An abnormal voltage regulator can also cause wiper malfunctions, so it's best to have a professional measure the system voltage. Don't overlook this, as erratic wiper movement might damage the windshield or cause accidents.

[KhloeRose]

If the wipers won't stop, immediate action is required. I've experienced situations where they kept wiping continuously, which could be due to the switch being stuck in the 'on' position or an internal short circuit. Another possibility is a relay malfunction, causing continuous current flow to the motor. It's recommended to stop the car and check the fuse. The fuse is located in the engine box or the cabin; refer to the manual for its exact position and try replacing it. If this doesn't resolve the issue, it might be a damaged controller or poor wiring contact. In such cases, avoid using the wipers to prevent component burnout. For safety, park the car and turn on the hazard lights, as impaired visibility can easily lead to accidents. During maintenance, take care to prevent moisture from entering the wiper system to reduce the likelihood of such problems. If necessary, seek professional technician assistance for repairs.

[ElenaDella]

Last time, my friend's car had its wipers running non-stop. Here's what happened: He suddenly encountered heavy rain on the highway, and the wiper switch malfunctioned—the button got stuck and wouldn't return, causing the motor to keep running. It could also have been a faulty relay; that little box controls the circuit's on-off function, and once it's broken, things go haywire. A short circuit is another culprit, especially on humid days when exposed wires are more prone to shorting. We pulled over to check the fuse, and after confirming it wasn't blown, we disconnected the switch connector as a temporary fix. When driving, it's important to avoid such malfunctions, as they can drain the battery or scratch the windshield. Later, we took it to a repair shop to replace the parts, which cost a few hundred bucks to fix. A reminder to everyone: Regularly clean the wiper mechanism and avoid using high-pressure water jets on the circuit areas. Neglecting these small preventive measures can turn them into big problems.

[ZoeyFitz]

The inability of the wipers to stop can be caused by multiple factors. Switch failure, where internal contacts are stuck or water ingress causes continuous power supply. Relay malfunction, where relay sticking keeps the current flowing. Control module issues, as the module handles signal processing, and damage can lead to signal confusion. Short circuits or broken wires, where exposed wiring triggers false actions. Additionally, unstable battery voltage or improper modifications can interfere with the system. I recommend first turning off the engine to check the fuse, located as indicated in the manual, and replacing it if necessary. If the wipers still don't stop, it might be due to the wiper motor overheating; allow it to cool before trying again. When parked, use a cover to protect the wipers from scratching the glass. For safety, avoid driving forcefully as it poses a high risk of impaired visibility. Regularly inspect the wiper system every six months to ensure it remains dry and secure.