For some reason my headlights don't always function. I just wired up a plow harness into the mix but the light were working ok I believe. Sometimes if I hit a bump the lights will go out. Also sometimes only the high beams will work; if I flip the switch to low beam the lights won't be on. Most recently the drivers side light was dim so I thought bad ground, or blown fuse. It was neither. Turns out that the plug was loose for whatever reason. Now again the lights went out, only the ambers stay on but the high beam switch won't stay engaged nor will the low beams come on with the headlight switch. Hope this all makes sense.