What Causes Headlights Not to Work?

[ColeAnn]

Headlights not working may be due to poor wiring connections or open/short circuits. Here are common headlight issues: wiring faults caused by poor connections, loose terminals, or improperly seated connectors. Using bulbs with incorrect wattage during replacement can also lead to such failures. Deformation, loosening, or detachment of the reflector inside the headlight, or quality issues may cause poor light focus or dispersion. For some vehicle models, prolonged use can cause aging or cracking of the lens (headlight), resulting in light failure or insufficient brightness, necessitating headlight replacement. Solution: Some vehicle models may have improperly adjusted headlight angles; refer to the vehicle's user manual for detailed instructions on headlight adjustment. Using substandard wiring (during repairs) or inferior quality bulbs can also cause lighting issues. Abnormal circuit voltage, inconsistent power generation, or significant fluctuations may result in dim lights, intermittent brightness, or complete failure.