i traded my 88 s10 2wd pickup for this toyota. the next day it was shorting out and i had no headlights,tails, or blinkers, dash, stuff like that the alternator didnt work. i replaced alt. voltage reg. and all the fuses.still nothing. so 150$ later and still the same problem. i pulled a wiring harness out of a nother truck and problem solved. turned out i had wires missing in the fuse box and coroded fuse links.

 

nice man, fromt he looks of your avatar it is a BA truck