i friend brought me their 91 cherokee 4.0 automatic.They had rear ended someone.I replaced the bumper,head light trim and blinker housing on drivers side.Front blinkers work fine,but the back blinkers have a mind of their own,they told me when using the front blinkers all of the backs would flash,now sometimes the back ones will flash the opposite side or not at all.Any idea where i would would start hunting for a short?I didnt mess with any wiring when i did the front and all wires looked ok.Any help would be awesome!

 

found it,i didnt realize it had a trailer harness,removed it,all good now,thx anyways.