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So I appreciate you got these from your generic scanner - but they can do very little. Erasing the fault won't make the route cause go away. So with these sort of systems issues, I would recommend you get it diagnosed using a Lexia with Diagbox. Given the recurring theme is the alternator in these - or the communications network, I think your best bet is to get it to the dealer. You don't want to be shelling out on these sorts of replacement parts without having the fault properly traced. As I think I mentioned earlier, some faults are symptomatic of others - but it is impossible for us to trace remotely on a Forum. At least you know what the fault codes are, the possible symptoms and backup modes you may start experiencing if the fault gets worse.