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Old 02-13-2015, 08:08 AM   #1
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Drives: Yaris sedan 2009
Join Date: Sep 2010
Location: Egypt
Posts: 1
yaris 2009 charging light problem

greeting everyone ...,

i have problem on my yaris 2009 charging , from 3 month's the battery light flashed randomly and the headlight and horn starts to reduce lighting like the battery dies all that the engine running , and finally the car didnt start .
i checked the battery and its good and
checked the alternator regulator and its fine,
checked the alternator voltage its fine also
, changed the alternator the same problem
, checked the fuses all good

i changed the alternator with corolla 2007 alternator its fine but the battery lighted very low light

what i do ?????
sorry for my bad language
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Old 02-13-2015, 08:33 PM   #2
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Drives: 09 5dr LB, 2x 08 3dr LB
Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
If you replaced the alternator and the battery dying problem went away, then you had a bad alternator. The 07 Corolla alternator probably doesn't output the correct signal that the Yaris cluster wants to see and that is why the battery light is on dimly.
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