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by neuralRiot
2780 days ago
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In old cars it was a quick test to see if the alternator was working so some people still think that this is a good idea, IT IS NOT! newer alternators are controlled via LIN bus by the BCM so to generate more current when needed not just using battery voltage as a reference, if you disconnect the battery the voltage can go up to 30v even a bad battery or one with very low charge can make the charging system either shut off or go nuts. |
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