1. Faulty Fuse: Check if the fuse for the windscreen wiper motor is blown. Refer to your vehicle's owner's manual for the fuse box location and the fuse responsible for the wipers. Replace the fuse if necessary.
2. Wiper Switch: The wiper switch may be faulty or have a loose connection. Try moving the wiper switch to different positions and check if the wipers respond. If they do not, the switch might be the issue, and it may require replacement.
3. Wiper Motor: The wiper motor itself could be faulty. If you hear no noise when you turn on the wipers, the motor may not be receiving power or may have failed internally. Check the wiring connections to the wiper motor and ensure they are secure. If necessary, the wiper motor may need to be replaced.
4. Linkages or Arms: The wiper linkages or arms that move the wiper blades could be damaged or disconnected. Inspect these components for any visible signs of damage, such as broken or disconnected rods, joints, or springs. If necessary, replace or repair the damaged parts.
5. Relay: Some vehicles use a relay to control the power supply to the wiper motor. If the relay is faulty or has poor contact, it could cause the wipers to malfunction or not work at all. Check the wiper relay and ensure it's functioning properly. If needed, replace the relay.
6. Electrical Connections: Check all electrical connections related to the wiper system, including the wiring harness connectors and ground connections. Ensure all connections are clean, free of corrosion, and properly secured. Clean or repair any faulty connections as needed.
Note: If you lack the expertise or tools to perform these checks and repairs, it's advisable to take your vehicle to a qualified mechanic or an automotive electrical specialist. They can accurately diagnose the issue and make the necessary repairs to restore the functionality of your windscreen wipers.
