2004 Kia Rio Brake Lights

Electrical problem
2004 Kia Rio 4 cyl Two Wheel Drive Automatic

I have a 04' Kia Rio. The brake lights in the tail lights do not work, but the brake light in the hatch works fine. I checked the bulbs in the brake tail lights and they are fine. I checked the brake light sockets with a circuit tester and not getting any power to the sockets in both tail lights.