lighting/turn signal issue

Pull the cover off the Male pigtale plug and see in any of the wires are loose. Can't remember what color wire goes with that side of the turn signals.

 

Pretty sure Green is right and Yellow is left.

 

That's my guess too. Pull that cover off and most likely you'll find a loose wire.

I'll move this down to the Mechanics Forum.

 

The main trailer cable runs from the front of the trailer to the rear. From there the various harnesses feed the tail lights and also run forward to power the marker lights and your mid turn. All you need to get that pigtail plug apart is a small screwdriver. I've seen some that just screw together by hand.

 

Factory colors are
green right flasher/brake
yellow left flasher/brake
brown tail and markers
those are the important ones sadly i have seen some factory stuff not using the color code,so use it as a starting point, buy a cheap light tester it will help.

 

From what i read now its could vary well be in the pig tail, also some trucksuse a differant fuse for trailer lights, but i would think a blown fuse would take out both blinkers, so pig tail or juntionbox, or lead into the first light can in back.

 

It's probably too late to help now, but I had the same problem in an International 9200. Tried all the pig tail and light checks but found nothing. The shop found the problem. It was the turn signal relay.