Yes. The problem remains after RV is disconnected.
Update on symptoms. My first post was relaying what my wife said as she was behind the vehicle.
So last night I went behind the vehicle and looked myself.
When you turn on full night lights, nothing. So when you are driving at night the tail is completely black.
When you put on blinkers, you get a faint fast blinking. The license plate lights will dim and bright together with the turn signal.
When you put on brakes, both back lights blink just like it's a hazard except dim.
Front lights seem unaffected except they blink more rapidly.
