Rep Power: 0

I had a 1998 Honda Civic DX and discovered that my brake
lights are not working.

I began troubleshooting the problem by first replacing the brake light
switch (under the brake pedal) which didn't help and then replaced the
third brake light bulb (which was burn it out) but that didn't help too. Make me confuse.

After that I started looking at the brake light bulbs and discovered
something a little odd. The actual brake light bulb has two filaments
in it - the first is for the running lights and the second gets
illuminated when the brake pedal is pressed. What's happening with my
car is that if the headlights are on, both filaments are lit for some
unknown reason. Then I add that the turn signals still work so I
know that there is power in the circuit.
Any ideas to fix the problem?

Thanks

 
Rep Power: 307

Does the horn work ? (the brake lights and horn share a fuse)

A test light or a multimeter would help with troubleshooting problem.

Check the fuse and check for voltage present at the brake switch.

 
Rep Power: 811

maybe the sockets got messed up or too much corrosion idk. since both light up together...