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Blinking/Flashing battery light [SOLVED]

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Old May 9, 2018
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Blinking/Flashing battery light [SOLVED]

Hi guys.
I know that there's a lot of topics about this (seems like a commom issue for Hondas) but, i swear, i've read MOST of them and never got a solution.
I own a 99 Civic sedan LX, automatic, 106.300km (~62k miles) and my battery light very often comes back back to haunt me.

What i made, recently, by recently I mean, this week (i've rode 100km with the car after the service, which, before the service the battery light was already blinking), I've replaced ALL the belts, and the brushes of my alternator got repaired (changed), in fact, it looked like the problem was solved, but today, driving around the city, she's back on my dashboard.
He's charging correctly and the only thing I could appoint is that my battery has already 3 years, but the car starts fine every morning, no problems with that too.

Also, I see no corrosion in any grounds, neither the battery, nothing seems out of place.

So, here is my last resource. What could be my problem now?

Thanks in advance.
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Old May 10, 2018
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re: Blinking/Flashing battery light [SOLVED]

Put a volt meter on the battery and see if the voltage is normal when the light is flickering. That way we know if there is an actual problem, or if the car just thinks there’s a problem.
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Old May 10, 2018
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re: Blinking/Flashing battery light [SOLVED]

Get the car so the battery warning light is staying on
Unplug the 4 wire connector from the alternator
If the warning light then is off, the alternator is bad.
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Old May 11, 2018
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re: Blinking/Flashing battery light [SOLVED]

But that's exactly the problem. If blinks at random places, at random hours and random conditions for no more than 2 seconds. It's impossible for me to stop the car and try to diagnose it while driving.
And stopped the light never blinkered.
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Old May 11, 2018
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re: Blinking/Flashing battery light [SOLVED]

Originally Posted by FearWRX
But that's exactly the problem. If blinks at random places, at random hours and random conditions for no more than 2 seconds. It's impossible for me to stop the car and try to diagnose it while driving.
And stopped the light never blinkered.
Get something like this then:
Amazon Amazon
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Old May 12, 2018
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re: Blinking/Flashing battery light [SOLVED]

Originally Posted by D17VTECPOWER
I didn't know that something like that existed, i'll get one of those. Thanks for the suggestion.
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Old Aug 5, 2018
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re: Blinking/Flashing battery light [SOLVED]

Here's the update after some time and turned it out that the problem were the voltage regulator (the part which is at the back of the alternator).
Replaced it and no more battery light on my dash, plus, my dashboard lights and headlights now are static, before if you looked at it closely you'd see that they were kind of "oscilatting".

Edit: I, at a cold morning, got a multimeter and measured it right after i started the car. That time the light were blinking and my alternator were charging from 14,7V ~ 16.3V, that's what got me directly to the voltage regulator.

If some admin see this, please add the tag [Solved] to it, please.

Last edited by FearWRX; Aug 5, 2018 at 01:23 AM. Reason: solution of my problem
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Old Feb 16, 2021
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Re: Blinking/Flashing battery light [SOLVED]

ELD
electrical load detector.. causes alt light to blink.
in 95 Lude was built into fuse box
​​​2003 crv its bolted into the fuse box.
2x I've ran into this
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