What is the reason why the front wiper keeps running non-stop?

1 Answers
MacElle
07/29/25 8:09pm
The reason why the front wiper keeps running non-stop is due to a fault in the wiper motor circuit. When the driver operates the wiper handle, the demand signal is transmitted to the BCM (Body Control Module). The BCM then sends a start signal to the wiper motor, which controls the movement of the wiper arm to perform the corresponding action. This is the working principle of the wiper. After disconnecting the negative terminal of the battery, the wiper will stop moving. Without operating the wiper handle, drive the car to a repair shop or 4S store to have a technician check the circuit issue. The power source of the wiper comes from the motor, which is the core of the entire wiper system. It uses a DC permanent magnet motor, and the wiper motor installed on the front windshield is generally integrated with the worm gear mechanical part.
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