I did a quick scan through the FSM didn't see a 6 position single row connector right offhand. What does the wiring connect into? If you could trace it back to some other connection that would help tremendously.
I don’t think so. That should only be a single wire on the parking brake itself. If no codes of course. And I think only other thing is brake fluid level switch that will turn park brake light on with no codes. I could be wrong though.