How to Deal with a Rear Wiper That Won't Turn Off?
2 Answers
Open the car's front hood to locate the wiper motor. You can touch the wiper motor by hand; if it feels hot, it indicates a short circuit. If the wiper switch is faulty and causes the wiper to keep running, consider using a multimeter to test the switch's condition or simply replace it with a new one for testing. If the wiper keeps running non-stop, it is likely due to a fault in the wiper motor's wiring.
When the rear wiper cannot be turned off, I usually first check if the switch is stuck. Gently press the lever or button a few more times to try resetting it, as stuck contacts are a common cause. In humid weather, the switch is prone to sticking, and using a hair dryer to blow on it can help. Next, check the fuse box, usually located under the dashboard or in the engine compartment, and look for the fuse corresponding to the wiper to see if it has blown. Replacing it with a new one should solve the problem. If that doesn’t work, it might be due to a short circuit or motor failure. In this case, avoid forcing it to prevent battery drain or component wear. It’s recommended to stop the vehicle immediately to ensure safety and then take it to a repair shop for a professional technician to diagnose with tools. Regularly keeping the switch area dry during car washes can prevent sticking.
