I got my trunk lights to work by cleaning and spraying lubricate on the switch under the copper ground strap/clip in the latch assembly. There is copper strap like piece inside the latch assembly next to the part that locks the trunk closed. I started moving that copper piece around and notice that both trunk lights came on while I was moving that copper strap. I sprayed electronic cleaner onto and under that piece of copper to clean any corrosion. Then I sprayed Walmart's SuperTech Lubricate under the copper strap/clip up by the top. There looks like there is piece of metal that the copper strap touches to make a ground and unground so that the lights goes on and off. The latch that holds the trunk down when the trunk is closed, pushes the copper strap/clip onto the piece of metal and caused the light to turn off. When you open the trunk, that latch does not push against the copper piece (and the copper strap/clip does not push against the piece of metal) and the trunk light turns on. I think the metal piece under the copper strap/clip was sticking either opened or closed. After I sprayed the lubricate on and around the piece of metal, and pushed the metal piece a few times with a small screw driver, the trunk light operated normally. Hope this works for anybody else.