I'm puzzled cause the tail and brake light are two diffrent filaments in fact the turn signal is the same as the brake, in less the stop light switch and head light switch both went bad. did they stop at the same time? i would check all the wires from the head light switch maybe even i don't know the name of the connection but its about 5 " long and attached to the steering column left side of it you will see like 8 wires going to it your turn signal switch will be what it plugs into