Hello I will help you with oyur question,
If you use a paperclip to jump across the two large terminals of the low beam relay do the low beams come on? Careful the paperclip may get hot.
Do you have the auto lamps or have you changed the switch hoping to install the auto lamps?
Let me know what you are doing and if jumping the relay turns the lows on then I will do my best to help you get to the bottom of this