1967 Dart no brake lights when lights are on

I know this is old but I thought I would share the outcome anyway. It was a broken wire to the signal cam and someone ran the tail lights to the brake light switch so the tail lights would come on when the pedal was applied. That's why the were no brake lights with the lights on (same). I fixed it by soldering in a wire to reconnect the broken one and disconnecting the previous 'Fix.'