MJP
Ram Guru
My light and armrest USB port died recently. I believe I am having the same issue that you had with wire chaffing. The light would flicker and USB work while lifting the armrest but no power when it was down. Did your USB port go out as well?I finally got the parts installed and everything is working as it should.
The tech found the wires were being chaffed on some sharp edges on the armrest hinge.
New armrest and new wiring fixed the issue.