Where does wire go from battery??? 2001 Pathfinder

[rpurcell1]

Ok, I must have pulled this wire loose changing the starter. Help Appreciated. 3 wires normally in this group.

1) The main cable that leads to the starter
2) Lead wire also .... to the starter
3) @#$ if I know? This third wire (blue and yellow, though I bought car second hand) has been pulled loose. I like to think it was already loose, but ?????

If you have a Nissan pathfinder like mine it sure would be a big help if you could trace this wire to its destination for me. Haynes manual doesn't say anything. Nissan dealership and associates say they don't know when I went down and asked them. I assume that they just don't want to help. If not, I sure don't have any faith in them "the experts" to fix the problem.

If you are ever in Austin, TX I will owe you some brews.

RP