having brake light issue after changing a bulb

If you just replaced a bulb and the lights stopped working I'd suspect the fuse blew from moving around the wiring and creating a short. Check the wiring going to the socket where you replaced the bulb for damage such as a bare spot in the insulation. Then check the fuse. The next suspect is the turn signal switch. The third brake light is not wired through the turn signal switch but the other two are. Hope that helps! Jim

what could be the issue....??? Make sure you have installed the correct double filament bulbs...., remove them and check for volts and amperage with a Digital Test Equipment/Multimeter or a Test Lamp at bulb sockets on Tail/Brake light terminals, no power..? check Tail/Brake light Fuses, Brake Pedal Position Switch and wiring. Thanks