Low beam lights not working

[OldschoolDam]

Is there a separate relay or fuse just for low beam?

I replaced a blown bulb on one side as low beam was not working. All seemed good, both working fine. Then the next day......neither one working. Replaced to other old one (which looked ok when I got it out).......but still nothing.

[Unplanned Tourist]

Do the low beams come on with the DTRL? Or did they before?
It may be a relay somewhere that has been added if your rig was imported and someone wired in a relay to operate them.
Happy Glamping.

[OldschoolDam]

There was no day time running lights on. One low beam was working, then two, now none. High beams only.

[Bob_C]

I'd start checking with a test light at the switch plug....

[OldschoolDam]

Sorted out. It was loose wires/corrosion from a previous owners hack job.

I now have functioning low and high beams!

Thank you everyone.