1. Faulty Reversing Switch: The reversing switch, also known as the reverse light switch, is responsible for turning on the reversing lights when the car is put into reverse gear. If this switch is faulty, it may also inadvertently activate the windscreen wipers. Inspect the reversing switch for any damage or corrosion, and consider replacing it if necessary.
2. Electrical Short Circuit: There might be a short circuit in the electrical system that links the reversing light circuit and the windscreen wiper circuit. Examine the wiring around the reversing switch and the wiper motor for any exposed or damaged wires that could be causing the short circuit.
3. Faulty Wiper Control Module: In certain instances, a malfunctioning wiper control module could be the cause of unexpected wiper activation. Diagnose the control module and inspect the electrical connections, especially those related to the reversing light switch, for any issues.
If you lack adequate experience with electrical diagnostics and auto repairs, consider taking the car to a reputable auto repair shop for proper diagnosis and repair.
