I have no power to brake light switch and i checked all fuses under the dash and under hood is there another power source?

I doubt the battery would be the cause.
The dash lights are on a different circuit from the brake lights.
Do you have power at both fuses ?

Some of those fuses get their power from the ignition switch. Check to see if there are any blown fuses in the fuse box inside the left kick panel on the dash. You likely have a bad ignition switch.

replace brake light switch @ BRAKE PEDAL, next, replace turnsignal flasher under dash, check for blown fuse, if turn sig. still doesn't work, check turnsig., switch, & or for loose connection.

Do you have turn signals ok?

Is your rear turn signal bolb the same one used for brakes?

Some turn signals are amber and some are red using the same bulb as the brakes. In that case the brake lights go through the turn signal switch.

But you would have power at the pedal switch.

No relay but there should be a fuse in the dash anel or under the hood if you have a battery box under the hood. Your owner manual will tell you where the fuses are and which one is hte brake. Usually a 15 amp.

The fuse block that contains the brake light relay is under the left side of the rear seat.There is also
a fuse block under the right side of the rear seat. Another behind the dash under the steering column. And one more under the hood right front corner of the engine compartment. If the relay is
good, check the brake light switch for constant 12v in and 12v out when peddle is pushed.
The brake light switch is under the dash at the top of the brake peddle. Hope this helps.

If both brake lights stopped working at the same time it could be the bulb even though the flashers work, but more than likely it is a fuse. Check your fuse panel in the dash and also the fuse box under the hood.

YOU HAVE OPEN OR SHORT WIRE IN BRAKE LIGHT SWITCH FROM THE FUSE TO BRAKE LIGHT SWITCH.

Check for power and ground at the brake-light switch and the brake-lights. Common failures are the brake-light housings (the circuit boards break inside) and the switch on the pedal.

Check all the brake bulbs first. If that is not the problem check the fuse for the lights. If that does not solve the problem then you will need to replace the brake light switch that is mounted under the driver dash that will be near the brake up toward the top.

Did you check or replace the brake light bulbs?
It is more common to have burnt bulbs than a bad brake light switch or blown fuse.
Do you have orange signal lights and red brake lights at the rear?
Then the signal light switch will not affect the brake lights.....but....
If they are all red and you use the same bulbs for brake and signal....the brake light wiring goes through the signal light switch and could be affected there.
First....check for power getting to the brake light switch......and leaving it with a test light.......then go to the rear....pull a light assembly and check for power getting to the bulbs.no power? follow the wiring back to the switch looking for a bad connection.
The fuses and relays under the hood are usually in a black plastic box labeled fuses and or relays.