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Low charging voltage. Alternator or Voltage Regulator?
2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
You can full field it (Bypass the the pcm-regulator to give full output) and check the output in the truck. If the brushes are worn to the point they barley touch the commutator you may get an intermittent/low reading. But at 215K how much more life does it have anyway?