I have a 2012 peugeot 308 station wagon petrol with an electrical problem. I go to turn the ignition and start the car and its completely dead no dashboard light, no radio and no odometer reading. After a while the electricals comeback and the engine starts with electronics in the car. The other day I was drivind home up a hill and it completely cutout with all the electronics dying except for the central locking and the hazards lights. The battery is charged and tested and is fine. I suspect its the fusebox or the power relay switch. Can anyone relate or have an idea on what is causing the electricals to die all of a sudden?