The last thing you want to do is erase diagnostic fault codes. Those are telling you which circuit or system needs further diagnosis.
You didn't list the correct mileage, so I can't make any judgement calls based on that, but it sounds like the alternator is quitting intermittently. At higher mileages that is typically caused by worn brushes which can be replaced at very little expense. At higher ages, wiring and connector terminal problems become better suspects.
To verify this is all caused by a dead charging system, measure the battery voltage with the engine running the next time this occurs. You must find between 13.75 and 14.75 volts. If it is low, there are more tests we can do to pinpoint the cause.
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Wednesday, August 12th, 2015 AT 7:52 PM