my Skoda Octavia NFL (2020-Present) wipers only work intermittently what to check

Solution

1. Preparation

• Gather tools: OBD-II scanner, multimeter, socket set, and screwdrivers.
• Disconnect the negative terminal of the battery to ensure safety during the repair.

2. Fuse Inspection

• Locate the fuse box and find the fuse related to the wiper system.
• Remove the fuse and visually inspect it for any breakage.
• Use a multimeter to check for continuity. Replace if faulty.

3. Wiper Motor and Wiring Check

• Access the wiper motor (usually located under the cowl).
• Visually inspect wiring for frays or corrosion; repair or replace as needed.
• Check electrical connections for tightness and security. Clean any corrosion.

4. Wiper Switch Testing

• Remove the steering column cover to access the wiper switch.
• Disconnect the switch connector and test it with a multimeter for proper resistance values.
• Replace the switch if resistance values are outside manufacturer specifications.

5. Relay Functionality Check

• Locate the wiper relay in the fuse box.
• Swap it with a similar relay (e.g., horn relay) to test functionality.
• If the wipers operate normally, replace the faulty relay.

6. Wiper Linkage Inspection

• Remove the wiper arms using a puller if necessary.
• Inspect the linkage mechanism for any disconnections or wear.
• Lubricate any moving parts and reassemble, ensuring everything is secure.