You have a wiring issue with the rear lights from the multifunction switch. I mentioned that to you before. There is no bypassing and wiring around the issue and having all the lights work the way they should.
I know you had it to several places that do not know much about electricity but you do need help with this from someone who knows electricity and how to trace the wiring.
Roy
SPONSORED LINKS
Wednesday, December 30th, 2020 AT 8:22 PM