Ok I think I figured out what’s going on and it’s suppose to do that. Hondas have a dual charging system that when in drive going between 10-45mph or at idle in drive, ac switch off, coolant above 165f, rpm below 3000, electrical load less than 15 amps but can vary with vehicle, and air intake temp above 68f, it will go into low output mode which puts it at 12.4-12.9 volts and anything outside those parameters it goes back to high output mode. So that’s good, but I do get once in a long time have my charging system light come on for a couple seconds to just a brief flash so I may still have a slight electrical problem which could be my sound system and I will soon install a 2 farad capacitor for my sub which is 500watt rms and that when it’s banging dims the lights and found that could damage or at least shorten the battery life and could be causing electrical issues and may be causing the charging system light to come on briefly. That took me forever to find this info, and maybe help some people that don’t know about it.

Check that your battery terminals are clean and tight. It’s possible that as the vehicle moves, the vibration and shifting weight could temporarily reduce the quality of the contacts with the battery.

I had the same problem and eventually the light stayed on until my car almost left me and my 1 year old stranded.

Could be a bad connection to the alternator that is not allowing the battery to charge properly. It’s probably best to do a test with a multimeter (in the hands of a qualified technician) to diagnose the electrical issue.

Start car. Remove one of the cables from the battery while it’s running (Be careful not to short your wrench out between + and – ! ) If it keeps running, alternator is likely ok. Also check that your belt is tight and not slipping.

Don’t know if he did, but sounds like a pump problem to me.

Hey elaud you ever fix this issue