Battery light flashes at idle then stays on while driving.
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From: Downey, California
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Battery light flashes at idle then stays on while driving.
I already knew that the alternator was going out due to my headlights and interior lights dimming. And my car turning off while in the street after it went On limp mode. So I changed my battery and alternator which is reman. Denso about 1/5/2020 or 2k miles ago.
I didn't have any problems up until yesterday 4/25. The battery light flickers every 1 second while idled and when I drive past 20 MPH it stays on.
Before I changed my alternator and battery the light was flickering constantly while parked every 10th of a second.
Did I get a faulty alternator ? I went for Denso for their reputation and paid $220 at NAPA.
https://imgur.com/gallery/K8Z9mdk
The bottom video is before I changed my alternator and battery.
https://imgur.com/gallery/Tta1YSL
I didn't have any problems up until yesterday 4/25. The battery light flickers every 1 second while idled and when I drive past 20 MPH it stays on.
Before I changed my alternator and battery the light was flickering constantly while parked every 10th of a second.
Did I get a faulty alternator ? I went for Denso for their reputation and paid $220 at NAPA.
https://imgur.com/gallery/K8Z9mdk
The bottom video is before I changed my alternator and battery.
https://imgur.com/gallery/Tta1YSL
Last edited by SlowboyZ; Apr 26, 2020 at 08:41 PM.
"Marge, anyone could miss Canada! All tucked away down there."
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Re: Battery light flashes at idle then stays on while driving.
Parts store alternators usually don't work in Hondas. Hit the junkyard or buy oem
Joined: Aug 2003
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From: Las Vegas, NV
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I'd say they're hit or miss, really. Actually did well with an AutoZone one for a little while. It did seize up on me after like 3 years, but that lifetime warranty got me a new one when it did.
@SlowboyZ , it does sound like an alternator issue, though. Do yourself a favor before you fire the parts cannon and make sure all the terminals on both alternator and battery are securely fastened.
@SlowboyZ , it does sound like an alternator issue, though. Do yourself a favor before you fire the parts cannon and make sure all the terminals on both alternator and battery are securely fastened.
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Registered!!
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From: Downey, California
Rep Power: 0 Re: Battery light flashes at idle then stays on while driving.
The cause was a bad unit. Replaced it the 2nd time with the same Denso alternator. The battery light is gone. We'll see how long this one last.
Joined: Aug 2003
Posts: 21,620
Likes: 1,252
From: Las Vegas, NV
Rep Power: 512 Re: Battery light flashes at idle then stays on while driving.
Not really. Follow that line towards the firewall. My bet is whoever installed stuff (you perhaps? I've done it before) forgot to clip that bracket back on and it drifted towards the firewall.
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