Im honestly not sure what it is.
I have it wired up according to the wiring diagram in the OP.
The wire sticking in the harness didn't fit because of the plastic insulation on the end of female pin connector I have on there.
But what I did was drill that part of the harness to make the hole bigger so the female plug would fit inside it and the harness could plug all the way into the switch. Once it was plugged all the way in I double checked to make sure the female connector was snug on pin 83b and plugged it all the way in. But no fogs, headlights and everything worked as normal though.