2. Broken Headlight Relay: The headlight relay acts as a switch that controls the power supply to the headlights. A broken relay can prevent the low beams from functioning while allowing the high beams to work. Check the headlight relay for any damage or corrosion and replace it if required.
3. Faulty Wiring: There may be an issue with the wiring that supplies power to the low beams. Check the wiring for any broken wires, loose connections, or corrosion. Repair or replace any damaged wiring as needed.
4. Defective Headlight Bulbs: It's possible that the low beam headlight bulbs themselves are defective. Check the low beam bulbs and replace them if they are burned out or damaged.
5. Grounding Issue: A poor ground connection can also cause issues with the headlight circuit. Check the grounding points for the headlights and make sure they are clean and secure. Clean or repair the grounding points as necessary.
6. Malfunctioning Multi-Function Switch: The multi-function switch, also known as the combination switch, controls various functions including the headlights. If the multi-function switch is malfunctioning, it can affect the operation of the low beams. Check the multi-function switch for any damage and replace it if necessary.