have you checked your fuses?
Bad socket? Bad ground? Problem in steering column switch?
Check the fuses first. Is sounds like there is a power failure to the light system. There could also be a broken wire to the fuse box.
It has a flasher relay for the signals only.
i have tail lights but do not have brake lights nor do i have turn signals. i have replaced brake switch and all bulbs
Its the steering colum
that points to a broken wire to the light, a bd ground wire or a bad light switch
turn signal switch needs replaced!
if the tail lights work but not brake lights then its most likely just a blown fuse or it could be the switch at the top of your brake pedal arm.
If the vehicle is equipped with a trailer light plug, the wires for the brake lights and the turn signals have been connected together, which is common, as many trailers do not have separate lights for brakes and turn signals.
Try your fuses
The brake light switch is broken or out of adjustment. The brake light switch is attached to the brake pedal lever above the brake pedal pad.
No brake lights but turn signals work? Turn signal switch brakes route through it.