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Hi im kevin this is likely just the alternator has failed.alternators always fail with little or no warning and is most likely the cause .the codes could be as a result of low voltGe
Possibly it really does depend on what part of the alternator has failed .you would need to remove and strip alternator anyway.i work in garage in uk and we personally dont get customers asking for rebuilds so we dont really get involved in rebuilding them .but im sure this is the cause of your problem
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