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Message: <blockquote data-quote="Buck" data-source="post: 8749030" data-attributes="member: 591582"><p>I think it can be designed several different ways.  I know my FIELD wire changed the voltage that my alt charged at, because I measured the FIELD wire voltage while changing the charging voltage, and they went up and down together.  I think the FIELD wire is used to let the alternator know the load on the electrical system, maybe in a more advanced way.  The FIELD wire was literally the only wire my alt had from the voltage regulator.  The only other wires on the alt were the power and ground wires for the alt power output.  The FIELD wire from the regulator was literally the only wire that interacted with my alt, my main FIELD wire from the car computer was left unhooked.</p></blockquote><p></p>

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