Car is a 260z with 400 sbc. A couple months ago I had my low beams on and went to turn the brights on. When i hit the dimmer lever to turn on the brights my headlights went out. Hit the switch again to turn the low beams back on they worked fine. Everytime i tried to turn on the brights the headlights went out but come back on as soon as i turn them on dim. Last night on my way home when i hit my dimmer switch every light on the car quit working. Nothing works, no brake lights, running lights, headlights, interior lights, nothing.... When i checked my fuses my number 3 fuse was blown. Was this caused by a short or has my dimmer switch went out and maybe thats what blew the fuse?? Im no electrical genius at all, any help or advice would be greatly appreciated.