To clear this up, when looking at the rear of the coach we have 3 lights on each side and the additional center light. All the regular rear lights illuminate when the lights are turned on but when you apply the brake, all the brake lights flash briefly then the only brake lights that stay on are the top one on each side. The center light also flashes briefly then goes out. I thought this may have been water in the harness causing a short but could find no issues. When I took it to the shop, they stated they traced the issue to the control module that manages all the lights (I assume exterior) on the coach. I was told this morning that they replaced the box from Spartan and all works now as designed. $1900.00 with labor...