When looking for switched 12v sources I noticed the green diagnostic plugs by the leading coils are switched 12v. What I am wondering is where are these fused?

 

ENGINE fuse if memory serves. If you blow that one the main relay relaxes and the circuit opening relay relaxes and YOU wind up and don't relax. See your local FSM's wiring diagrams for confirmation (as if any was needed).

Oh well. The above is B.S. It is the EGI COMP fuse that feeds power to that check connector. See attached jpg. Pop that fuse and the engine still stalls out and you still get wound up.

That said, I've used that black/white wire in that six socket green colored connector for purposes that it was not meant for. Never bothered me too much. Low load items. Small stuff.