Wiring harness dat plugs n2 my computer melted 2 my motor k well was able 2 save it only had 2 b splice 1 wire BK 2gether well now my abs light stays on and well when your driving it wasn't all da time just sumtimes bt my parking brake light would come on and dat would make my speedometer quit working we which made my truck not wanna shift when light goes off truck runs normal well now I changed the speedometer sensor and light stay on so speedometer don't work and truck won't shift what would cause this