Battery light came on, so I suspected it was a connector?

2006 TOYOTA AVALON
240,000 MILES
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ANT111222
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Battery light came on so I suspected it was a connector shortly after that the terminal started turning black, so I went on to recharge the battery, replace 5 grounding points, got a new alternator, and the battery light continues to stay on, what could this be?
May 15, 2025 at 8:42 PM
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Lets see if the alternator is charging, also, when you say 5 new grounds what do you mean? Can you send an image? Also, make sure the battery ground to the chassis and the engine block are good.

Here is a guide to help:

https://www.2carpros.com/articles/how-to-check-a-car-alternator

Also, check these fuses, check out the images (below). Please let us know what happens.
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May 16, 2025 at 12:10 PM