Hello,
You must be loosing power somewhere are have a shorted wire lets run this test to see whats going on. It sounds like you have a headlight switch that may have gone out.
https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester
Below are the wiring diagrams for the running lights.
Check out the diagrams (below).
Please let us know what you find. We are interested to see what it is.
Cheers, Ken
Images (Click to enlarge)
Jan 30, 2018 at 11:02 AM