Join Date: Jan 2010
Location: Fountain Valley California
It sounds like the 2 wire harness (with power and ground return) within the trunk area, an running thru your trunk lid (to the license plate light housing), has an intermittent broken power wire going to those lamps. I suspect that its damaged within that rubber transition boot area, near the right side trunk hinge. Maybe you could prove that out by flexing the boot (with the trunk open an parking lights on), to see how the license plate lights react. You can still buy the wire harness assembly # 92207875 for about $63 if needed.