Battery light turn on while driving?

Tiny
JJT21101
  • MEMBER
  • 2009 HONDA CIVIC
  • 1.6L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 280,000 MILES
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.
Monday, July 18th, 2022 AT 10:49 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,072 POSTS
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.

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Tuesday, July 19th, 2022 AT 12:24 PM

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