1. Check the Wiring: Inspect the wiring connections related to the windshield wipers and the air conditioning system. Make sure there are no loose or damaged wires. If you find any issues, repair or replace the affected wiring.
2. Check the Wiper Motor: The wiper motor could be faulty or have a short circuit that is causing it to activate when the air conditioning is turned on. You can try disconnecting the wiper motor and see if the issue persists. If the wipers stop working when the motor is disconnected, you most likely need to replace the wiper motor.
3. Check the AC Relay: The air conditioning system has a relay that controls the power to the compressor. If this relay is faulty or has a short, it could be sending power to the wiper motor as well. Check the AC relay and make sure it's functioning properly. If necessary, replace the relay.
4. Check the Climate Control Module: The climate control module is responsible for controlling the AC and other climate-related functions in the car. If there's an issue with the module or its wiring, it could cause unintended interactions between the AC and the windshield wipers. Consider having a qualified mechanic inspect the climate control module and related wiring.
5. Seek Professional Help: If you're not comfortable troubleshooting electrical issues or if the above checks don't resolve the problem, it's best to consult with a qualified auto electrician. They can diagnose and fix the issue accurately and safely.
