What are the reasons for the electric car lights not working?

[Janet]

The reasons for the electric car lights not working are: 1. The bulb is burnt out; 2. Poor grounding contact of the light; 3. Damage to the relay or combination switch; 4. Short circuit or open circuit in the power line; 5. The fuse is damaged. The methods to address electric car lights not working are: 1. Check if the fuse is in good condition; 2. Check if the voltage regulator of the generator is set too high. The maintenance methods for car lights are: 1. Regularly check the sealing of the lights, and replace the sealing ring between the diffuser lens and reflector if it is damaged; 2. Clean the reflector regularly, and replace it if it turns black or the light intensity decreases; 3. Regularly clean dust and stains from the bulb.