1. Wipers Not Working at All:
* Check the fuses: Consult your owner's manual to locate the wiper fuse(s) and check them with a test light or multimeter. Replace any blown fuses.
* Check the wiper motor: This is often located under the hood, usually near the base of the windshield. You might need to remove some plastic covers to access it. Listen carefully for any clicking sounds when you turn on the wipers – clicking indicates the motor is getting power but may be faulty. Visually inspect the motor for any obvious damage. Testing the motor directly requires electrical knowledge and tools.
* Check the wiper switch: The switch itself could be faulty. This is usually located on the steering column. Testing this component requires electrical knowledge and tools.
* Check the wiring: Inspect the wiring harness leading to the motor and switch for any breaks, corrosion, or loose connections.
2. Wipers Working Intermittently or Slowly:
* Check the wiper motor: A weak or failing motor might work intermittently or slowly.
* Check the wiper linkage: The linkage connects the motor to the wiper arms. Check for any broken or worn parts, binding, or seized joints. Lubrication might help if it's stiff but not broken.
* Check the wiper fluid reservoir: Make sure you have enough fluid. Low fluid can sometimes cause intermittent operation, depending on the sensor in the system.
3. Wipers Streaking or Smearing:
* Clean the windshield: Use a glass cleaner designed for auto windshields. Ensure you clean both the inside and outside of the glass thoroughly.
* Replace the wiper blades: Worn or damaged wiper blades are the most common cause of streaking. Replace them with new blades designed for your vehicle. Make sure they're properly installed.
* Check for debris on the windshield: Small pieces of debris can scratch the glass, causing streaks.
4. Wipers Not Parked Correctly:
* Check the wiper motor and linkage: A problem with either of these components can prevent the wipers from parking correctly.
* Check the park switch: This is a component within the wiper motor mechanism. If faulty, it will prevent proper parking. This requires specialized knowledge to diagnose and repair.
Important Considerations:
* Safety First: Disconnect the battery's negative terminal before working on any electrical components.
* Owner's Manual: Your owner's manual will have diagrams and specifications for your vehicle's wiper system.
* Professional Help: If you're not comfortable working on your vehicle's electrical system or mechanical parts, take it to a qualified mechanic. Incorrect repairs can lead to further damage.
This detailed explanation provides a structured approach. Remember to always prioritize safety and consult your owner's manual for specific instructions. If you're unsure about any step, seek professional help.
