Intermittent low beam or LED daytime running light failures often stem from moisture in the headlight housing or faulty relay connections.
Without it, you are working blind. With it, you can systematically isolate a fault. dacia sandero wiring diagram
| Code | Color | Usage Example | |------|-------|----------------| | B | Black | Ground (earth) points | | W | White | Permanent battery +12V (before ignition) | | R | Red | Switched ignition +12V | | G | Green | Sensors, data lines (CAN) | | Y | Yellow | Airbag circuits | | V | Violet | Lighting, instrument cluster | | O | Orange | Diagnostic lines | | M | Brown | Accessory ground | Intermittent low beam or LED daytime running light