welcome to the forums :00000732:
the problem you have is caused by a bad earth/ground connection on the back light. check the rear right light bulb holder assembly and make sure the black wire (ground connection), this is where is making a good contact, this is where the problem lies
the problem you have is caused by a bad earth/ground connection on the back light. check the rear right light bulb holder assembly and make sure the black wire (ground connection), this is where is making a good contact, this is where the problem lies