Low breams don’t work and high beams?

Interesting; so your old car didn't have fogs, but now you have them? Do you have the switch inside the cabin for fog lights? Try getting your car savvy friends to disconnect the fog light wiring from the harness and see if your lights work again. If they do problem solved.

Check the connectors in the wiring harness, starting with the ones directly behind the headlights and moving away from them, to make sure they are tight. One loose connector can make them come on or off when the vehicle is jarred, such as when the door is slammed. Most likely there is a loose one somewhere. Maybe not connected tight when replacing the bumper? Hope this helps.

I'm having the same problem with my 2007 Ford escape I just want to go turn on my headlights yesterday night and they went on for a second and then it went right out both of them the same time I check the relays about fine I replace both bulbs just in case there was something wrong with them and today I went out and bought the switch for the steering column and changed it and I still don't have low beams but my high beams work any other ideas what this is or what my problem is