2007 Honda Odyssey - 153,000 Miles. Automatic. No known codes. Alternator replaced 14 months ago. Brand new battery, battery terminals, and battery cables. I have owned the car since 2019, problem started 11 months ago.
For the last year the battery light will randomly come on. It will stay on for 30 seconds to 4 minutes before turning off. Will come back on minutes later. At night when it does it, the head lights dim while battery light is on, then brighten up again when it turns off. There are infrequent times when the instrument cluster lights will flash on then turn off.
I have had the alternator checked, its good. Battery is still good (again just replaced last week).
Any ideas? I saw on youtube it could be Electronic Load Detector going bad. Any other ideas?
Thank you so much!!
Check the battery terminals as well as the grounds, if they checked out, considering that you already checked the battery and alternator, the issue might be related to the PCM.