Isuzu bighorn wiring schematics

hey all, i was wondering if anyone could help me with a small problem i have over here in aust, i have a 1987 isuzu bighorn irmischer (i dont know if u guys have them in the US) but i am after a set of wiring diagrams for one so as i can trace a couple of wires back to the sorce of my problem, i have no parking lights but everything else works fine, i am thinking its the wire after the pull switch thats rubed thru somewhere and i dont know if something has happened to the wire or if it changes coulor as it goes down the line

any help will greatly appreciated and a reply will be really required ASAP as i have a big trip coming up with it shortly

P.S. we call these isuzu's, holden jackaroo's here in aust