No, but the fuse probably would. I would check that first before you get crazy with other things.
Check fuses or headlight switch
How the brake lights work on a 66 Mustang is very simple. Power goes from the headlight switch to the brake light switch, then through the turn signal switch and back to the brake lights. There is no fuse in that system. There is a self resetting circuit breaker in the headlight switch, but, if that was tripped, none of the lights on the car would work. The first thing to check is the brake light switch itself by bypassing it. Unplug the connector from the switch and run a jumper from from one slot in the connector to the other. If the brake lights come on, replace the brake light switch. If they don't, the problem is either a wire has lost continuity or there is a problem in the turn signal switch.
Yes.
replace the headlight switch its wore out replace the headlight switch its wore out
A bad brake light switch or a bad headlight switch, or the power source of the fuse has a problem or break in the wire (circuit).
brake switch ???
Blown fuse or bad headlight switch
change the headlight switch it controls the running lights....$15 at autozone
headlight switch
if you've tried hitting the high/low beam switch & headlights are out on both, then a bad headlight switch or headlight switch plug or high/low beam switch plug not fully engaged.
fuse, bulbs
Brake light switch runs through your headlight/turn signal seitch in steering column. This switch could be malfunctioning.