Here are a few things you can do to troubleshoot the issue:
1. Check the wiper switch. Ensure the switch is turned on and in the correct position. If the switch is not working correctly, you may need to replace it.
2. Check the wiper motor. The wiper motor is responsible for powering the wipers. If the motor is not working correctly, you may need to replace it.
3. Check the wiper linkage. The wiper linkage is responsible for connecting the wiper motor to the wipers. If the linkage is not working correctly, you may need to replace it.
4. Check the wiper blades. The wiper blades are responsible for wiping the water from the windshield. If the blades are worn or damaged, you may need to replace them.
5. Check the windshield washer fluid. The windshield washer fluid is used to help the wiper blades clean the windshield. If the fluid is low or empty, you may need to refill it.
6. Check the electrical connection. Check the electrical connection between the wiper switch, wiper motor, and wiper blades. If there is a loose or broken connection, it can cause the wipers to not move when you turn on the switch.
7. Check the fuses. The windshield wiper system is protected by fuses. If a fuse has blown, it can prevent the wipers from working. Check the fuses in the fuse box and replace any blown fuses.
8. Seek professional help. If you are unable to resolve the issue on your own, you may need to seek professional help. A qualified mechanic will be able to diagnose the problem and perform the necessary repairs.