2002 Jaguar XJ8 rear lights

Hello. Rear lights not working, both sides. No electrical current at end of harness. All other rear lights work, including brakes, signals, reverse, and accessory rear light. Problem found after I replaced bulbs--one side had been "fried." Also, trunk release has quit working and I'm told it is from wire short or break. So is there a single fuse or relay that controls these lights? Or is there a wire problem?