i would like to say hello everyone ,i have a 1990 s10 chevy blazer, 4.3 ,auto ,2wd . in need of a wireing diagram ,i have brake light problems ,an have checked brake switch it works, all other systems work, driving lights, turn siginals, side markers, hazard flashers ,just no brake lights, i have been trying to find a repair manual online with no luck ,wondering if anyone has a wireing diagram they could post or send in a file