Head lights only work in the day not at night

Hi,

If they only work on the daylight running light selection, my first suspect is that the DRL relay is bad or the headlamp switch has lost ground. I attached two pics. The first shows the relay for the DRL and how power flows through it to the lights. The next pic shows the ground for the headlamp switch.

The last picture shows 4 fuses to check. The DRL has a separate fuse.

Here are a few links you may find helpful when checking the fuses:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/how-to-check-wiring

Last, I would suggest testing the DRL relay and the headlamp relays. The last pic shows the headlamp relay. Here is a link to help you check:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (Below). Please let us know what happens.