Ckessler17

Other day i went to back up & my camera was blue screen & then I realized my reverse lights are out. Brake, park & signal lights work. Fuses are good & was tested with a meter. Even with the taillights & camera unplugged I tested the main plugs at the spare tire & still can’t get reverse. So it’s somewhere from the front to the back plugs. Really like to get some help before taking to a dealer. Any advise & pictures to help out will be greatly appreciated.