1. Check the fuse: Open the fuse box and check if the horn fuse is blown. If it is, replace it with a new one.
2. Test the horn relay: Locate the horn relay and use a multimeter to test its continuity. If it's not working, replace it.
3. Inspect the wiring: Follow the wiring from the horn relay to the horn. Check for any damage or corrosion. Repair or replace any faulty wiring.
4. Check the horn switch: Press the horn button on the steering wheel and have someone listen to see if the horn sounds. If it doesn't, check the horn switch.
5. Clean the horn: If the horn is still not working, you can try cleaning it. Remove the horn from the car and use a soft brush and some water to clean the horn.
6. Replace the horn: If cleaning the horn doesn't work, you may need to replace it. Purchase a replacement horn from a reputable parts supplier.
