cxn613 Posted February 10, 2017 Share Posted February 10, 2017 trying to get some help, put a flatbed on an old Diamond Reo truck. Wired everything up using what was there and everything works but the turn signals when the brake lights are lit. When I power probe the stud for the right tail/brake the left lights up to. Same when i probe the left, the right lights up as well, but when i unhook the wires from the truck to those studs they work as they should when putting power to the stud for left/right turn/brake. So seems to me there is something from the truck pig tail back to the cab making both energize when power is put to one. What doesn't make sense is the signals work when turned on with the turn signal unit. Quote Link to comment Share on other sites More sharing options...
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