I have a 2003 Ford Focus ZTS. The third break light is working fine but the other two are not. I have checked the fuses, everything seems fine. I assume the brake switch is working fine because of the 3rd brake light working correctly. Tail lights light up with the headlights on and turn signal and hazards works. I noticed hazards use a different bulb, though. I had changed one of the break light bulbs a year ago.
Any suggestions on what else to check?
Thanks!