1. Headlight switch: Make sure the headlight switch is turned to the correct position for dipped headlights. There may be a separate switch for dipped and full beams. Ensure that the switch is not worn out or damaged.
2. Relay: Check the headlight relay. It is usually located in the fuse box. If the relay is faulty, it will not supply power to the dipped headlights. Try swapping the relay with another one of the same type to see if that fixes the issue.
3. Wiring: Check the wiring between the headlight switch, the relay, and the headlights. Ensure that the wires are not damaged or corroded.
4. Headlight connector: Check the connector that connects the wiring to the headlights. Ensure that the connector is clean and free of corrosion.
If you have checked all of these things and the dipped headlights still do not work, it is recommended that you take your vehicle to a qualified mechanic for further diagnosis and repair.
