Had an issue crop up today on my 2015 Focus, the central locking AND electric window have all failed on the nearside rear passenger door. The door seems electrically dead. All other doors and body systems appear unaffected. Car is under warranty but was wondering if anyone has encountered a multi electrical failure isolated to only one door before? I'm guessing it's either a connector loose or a wiring loom fault. Car has only done 5k miles.