Is the center brake light on the car now? If it is, whether it works or not will provide a real fast indication of where to start looking. That circuit is real basic. The two rear brake lights go through the turn signal switch so troubleshooting them gets more involved.
Start by checking fuse 24, (blue 15 amp) in the fuse box on the left side of the dash. If that is good, check for 12 volts on the orange / white wire on the brake light switch. Next, check for 12 volts on the orange / yellow wire on the brake light switch when you press the brake pedal.
If you have the center brake light missing and / or you can access the wires, look for that orange / yellow wire and check for 12 volts on it when a helper presses the brake pedal. If that is there, the fuse, brake light switch, and wiring are all okay up to that point.
Wednesday, November 25th, 2015 AT 4:14 PM