Had headlights, then high beam only, now nothing

There is no relay OEM. The functional path is.........tapped off the black ammeter wire "welded splice"............to the headlight switch....through the switch .........to the dimmer switch........out the dimmer on high and low beam wires...........through the bulkhead connector.............to the headlight harness..........split off to the two lamp connectors.........to ground somwhere on the radiator support

I wasn't sure about the relay, the wiring diagram shows one and that is what I was going by. Thanks for clearing that up. Had to back off, for awhile, I wasn't getting anywhere & tomorrow, Wife has to go to work & my oldest Daughter, has a medical procedure & here we are, stuck & fortunately my Wife was able to go with our neighbor, to get a "rental", to take up the slack, until I can get this one back up &/or
we finally get our Town & Country fixed & back to us. Yeah, I know he term "When It Rains, It Pours, Very Well. Again, every bit of help I receive here, is VERY much Appreciated. And, Anytime I can, I'll definitely return the Favor. This has just really thrown me sideways, after dealing with some electrical issues on our Town & Country, as well. And I DON'T like the electrics on the newer Mopars, AT ALL.