Seeing how the last post is 12-11-2017 Ill add to it. I have a good used replacement harness to replace mine. There are four broken wires. I will closely inspect the replacement harness and repair my broken one to have a spare. I have seen splice repairs and I dont like the looks of them.
The cause is simple metal fatigue. Too many wires too tight a spot and all that flexing something has to give. Its more common on the right side then the left but does happen on the left too.