so im sitting down at my old bosses work today, i grabed the book he has there, but there is one problem, i noticed, im gonna have all sort's of difficulty's in sending you a copy of the page you require, it's in a haynes auto repair book, nice and easy to follow, the problem is it's copywrite. i cant legaly send you this info over the net, my susgestion is you do a quick reqire, like this
run a hard pos up from your battery into your cabin, find where the pos is on the seletion switch, it's a mater of spending about $30.00 at a auto store and buying a circuit tester, simply connect the active up to that on the supply side of the seletor, (this will be shown when the light on the tester will be on) then run a single peice of cable, (colour is your choice) down to the relay, then from the relay to 1 of the headlight's, this will make both of them work, you need to put in a new fuse, probably around the 25, 30 amp mark, not hard to do, follow the insturcitons on the relay for how to connect that one up, if that dont work, go and get a new seletor switch, and revert back to the old wiring, and take it to a auto spark, it's hard to fix over the net without actually looking at it. sorry i cant help.
either that, or replace the relay in their now, just to make sure it's actualy working.