Sorry for the confusion. You are right the pedal switch is supplying power but when I trace it to the trunk wiring harness the brake light wire doesnt supply power (i used needle nose tester). I individually checked each wire on the harness and the only one that does not supply power with or without pressing the brake is the brake wire. All other lights work back there: back light, turn signals, etc.

So my questions are:
What are reasons why, the third brake light works but bulb out indicator is lite on dashboard?

Why is power supplied at switch but not at the indivdual wire on harness (for brake)?

Do you know the the path after the brake wire leaves the pedal switch?

To clarify, the assembly tested fine, each connection and bulb holder shows power even the dual tail light that should supply power to brake light. And, yes the bulb is dual filament. So i believe that the problem does not exist there.

Thanks again