check the harness in the trunk lid to the tail lights, this harness works the trunk lock, the lic plate lights, and the 4 running lights in the center tail light and the back up lights. the harness gets damages where it goes through the body of the car into the trunk. theres a plug there in the trunk so you can take the harness out and inspect it good.
mine took a crap on me, but only the marker lights, lic plate lights, and rev lights stopped working. i snagged a used harness at a part out when i took its center tail light. all works since then.
