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Battery warning light

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I've recently changed alternator and Battery on my Toyota Yaris 2010. I performed a Battery test and it showed good Battery 13,2v 506/540A EN , start 11,27v and charging ok with 14,51V.  But the Battery warning light is still present. Any suggestions to what the problem might be? Thanks in advance!

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I would unplug the 3(?) Pin plug off the back of the alternator and make sure it's clean cleaning it up with some contact cleaner wouldn't hurt


It has been known for people not to plug the connector back in or seat it fully home tooo 🙃

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Was the alternator originally replaced for this fault? 

Is the replacement alternator absolutely correct in its part number? and not some generic replacement or one from a different variant.



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