1989 7.3L IDI wiring issues
 

:humm:hey guys.
i have an 89 7.3, and i can't find a book for my wiring diagram. just a couple questions for those of y'all that are better at wiring than i am.

ISSUE: passenger rear brake light and blinker not working.
have changed bulb, checked for breaks in the wiring also. i am getting power to the inside of my wiring harness, but not to the connector that goes down the inside toward the back. BTW front blinker works fine and no issues with the flasher relay. i pulled apart the connectors and cleaned them and re-greased them. when i tested the socket in the back i wasn't getting any power to the blinker and brake side. is it possible the socket is bad? if so can i get another one?
on mine, if i'm not mistaken the brake/blinker on the passenger side is an ORANGE w/BLUE stripe? the other two are BROWN(running Light), and of course a BLACK.
i'm stumped and PO'ED!.
i'm not the best at electrical but i'm pretty sure i have tackled all issues.
also, checked where it came out of the steering column and it was good.
any help is very appreciated.

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sorry guys. didn't mean to post this in this section. must have hit the wrong button...now to figure out how to move it.