- Check if both headlight bulbs are burnt out. Replace them if necessary.
2. Fuse Issues:
- Check the fuses responsible for the headlights. If any fuse is blown, replace it with a new one of the same amperage rating.
3. Headlight Switch Malfunction:
- Try turning the headlight switch on and off a few times. If the headlights work intermittently, it could indicate a faulty switch.
4. Wiring Problems:
- Inspect the wiring related to the headlights for any damage, corrosion, or loose connections.
5. Relay Failure:
- If your car uses a relay for the headlights, check if it's functioning properly. Replace the relay if needed.
6. Faulty Headlight Control Module:
- Some Renault Scenic models may have a headlight control module. Check if it's malfunctioning and replace it if necessary.
7. Faulty Body Control Module (BCM):
- The BCM is responsible for controlling various electrical functions, including headlights. Check the BCM and its connections if other electrical components are affected.
8. Issues with the Light Sensor:
- If your Scenic has an automatic light sensor, check its functionality and make sure it's not blocked by dirt or debris.
9. Faulty Dip Switch:
- There might be a separate dip switch or lever that controls the headlights' position. Check its condition and functionality.
10. Water Ingress:
- In some cases, water ingress can cause electrical issues, including headlight malfunctions. Check for water leaks in the headlight area.
If you're not confident in troubleshooting electrical issues, it's best to consult a qualified mechanic or auto electrician to properly diagnose and fix the problem.