Battery light turn on while driving?

2009 HONDA CIVIC

280,000 MILES • 1.6L • 4 CYL • 2WD • AUTOMATIC

JJT21101

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I was driving down the road when my battery light came on bright and solid. I checked the alternator and that's fine, the terminals are good. I swapped alternator fuses. The battery is producing 12.2 volts idling. I'm absolutely stumped, I'm not sure what to do.

Jul 18, 2022 at 10:49 PM

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There are two fuses we need to check # 10 7.5 amp and #3 10 amp in the interior fuse panel. Here is a guide to help and the fuse location is the diagrams below. I have also included the alternator wiring diagrams so you can see how the system works.

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

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Images (Click to enlarge)

Jul 19, 2022 at 12:24 PM