[QUOTE=PAhonda;369877]The has to be a wiring or a connector problem. You said the wiring is brand new, so what wiring was replaced and why? Was a new or used harness used?

Testing for voltage with the bulb removed doesn't necessarily mean there isn't a wiring issue.

Here is a video on testing a third brake light. Next step is to do a voltage drop test. Do you know how to back-probe an electrical connector?

You could back-probe the ground wire, then connect the back-probe to ground to rule out a ground wire issue.

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The entire wiring harness was replaced with brand new wires (every single wire running to the brake light) because I had this same issue a year ago. I will let you know when I do the back-probe.