Wiring diagram under hood fuse panel?

I’m having a problem finding a wire for the bottom of under hood fuse panal, on the back of the fuse panal on the side next to the 3 fuse blocks there are2 plug in connectors a green and black my
Problem is the black 1 in the middle which is c5 connector circuit 1842 which is fòr the radiator fans on high my problem is the battery power wire that suppose to connect to that plug is no where to be found. , Im replaceing engine harness but that is
Not connected to this it’s a single 14g wire I think and it needs t connect to battery power AI sent me down rabbit hole and my factory manual skips over this, maybe you have a better source and can find out how it connects, the yellow paint is at black plug plug thanks sir my email louisn57@icloud. Com