1. Check Wiper Blades:
- Lift the wiper arms and inspect the wiper blades. Are they worn out, cracked, or damaged?
- If necessary, replace the wiper blades.
2. Check Wiper Motor Fuse:
- Check the fuse box and locate the fuse labeled "wiper motor." Check if the fuse is blown.
- If the fuse is blown, replace it with the appropriate fuse rating indicated in the vehicle's owner manual.
3. Check Wiper Motor Operation:
- Turn the vehicle's ignition to the "ON" position but don't start the engine.
- Activate the wipers and observe their movement. Do the wipers operate normally, or do they move slowly, chatter, or not move at all?
- If the wiper motor is faulty or making abnormal noises, it may need to be replaced.
4. Inspect Wiper Linkage:
- Check the wiper linkage, which connects the wiper motor to the wiper arms. Look for any signs of damage or disconnected linkages.
- Tighten any loose connections or replace worn or broken components as needed.
5. Test Wiper Motor Electrical Connection:
- With the ignition key turned to the "ON" position but the engine off, locate the electrical connector to the wiper motor.
- Disconnect the connector and check for corrosion, debris, or loose connections.
- Clean any dirt or debris using electrical contact cleaner and reconnect the connector.
6. Test Wiper Switch:
- The wiper switch on the steering column may need to be tested if the wipers are not responding at all.
- Follow the vehicle's wiring diagram (usually available in the workshop manual) to identify the wiper switch's connector and test the continuity of the switch using a multimeter.
- Replace the wiper switch if found defective.
7. Professional Help:
- If you find it difficult to troubleshoot or fix the issue, it's best to seek the assistance of a professional mechanic to ensure proper diagnosis and repairs.
Remember that electrical repairs and modifications should be performed by someone with experience in automotive electrical systems to ensure safety and prevent further damage.
