The "Check charging system alert comes on all the time, l...

The "Check charging system alert comes on all the time, looses momentum, dies constantly Mechanic's Assistant: What is the make/model/year of your car? 2013 Honda Civic Mechanic's Assistant: Are you fixing your Ci...

The "Check charging system alert comes on all the time, looses momentum, dies constantly Mechanic's Assistant: What is the make/model/year of your car? 2013 Honda Civic Mechanic's Assistant: Are you fixing your Civic yourself? What have you tried so far? Yes I am, I have replaced the battery twice, the altnater twice and new spark plugs Mechanic's Assistant: How many miles are on the Honda? When was the last time the plugs were changed? 127421, the plugs were changed in November, I considered checking them again but wasnt sure if they would of gone bad already Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? Nope thats it

Automotive Expert
Thanks for using! My name is \*\*\*\*\* \*\*\*\*\* I'll try to answer your car questions. I'll start off with some basic checks to do, then we can get into more advanced diagnostics if needed. Let me know if any questions come up, or if there is anything I can do to help! You can update this message at anytime. - I'm sorry to hear about any troubles with the vehicle, but would be glad to try and help!

okie dokie
Automotive Expert
- Which engine is in the vehicle? Are there any trouble codes setting in any of the modules, or warning lights coming on? - How much voltage are you seeing at the battery with engine running?

I'd love some helpAll its saying is Check charging system and the battery warning light comes on and offthe battery is at full voltage

I’ve replaced the alternator twice, battery twice, spark plugs, and nothing.
Automotive Expert
Recommend double checking all fuses while engine is running. If youre seeing 14 volts at the battery with engine running, scan for trouble codes in the engine computer and instrument cluster. We'll need to see if the cluster is seeing the correct battery voltage if alternator is working correctly. List any codes youre seeing to the message and I'll look up diag/repair information. Lemme know if any questions come up while checking things out! If you've replaced it twice now, suspecting the engine computer may not be controlling it correctly if youre not seeing around 14 volts at the battery with engine running. Use voltmeter to check. If voltage is normal with engine running, check into the cluster not getting the correct battery voltage signal and turning the light on. Lemme know what youre seeing!

We’ve checked all fuses, checked for any coded while running, used the voltmeter and nothing has thrown a red flag
Automotive Expert
How much voltage are you seeing at the battery with engine running? Which engine is in your car? Can I get the vin?

12 volt.



Automotive Expert
Ok, so it's not charging, but youre not seeing any codes setting in the engine computer or any of the other modules? Are you seeing power to the alternator? Attaching wiring diagrams to the message to help with repair, may need to be on pc/email platform to view. Check continuity of the yellow wire from alternator to the engine computer to be sure it's getting good signal to charge the battery. If signal is present from engine computer, suspect the new alternator may also be faulty. Have seen some issues with aftermarket alternators at times, may need to install oem/factory alternator. Double check connections at the alternator/look for spread terminals. If not seeing any other issues, replace engine computer and recheck operation. Lemme know what youre seeing, or if any questions come up while checking things out!

I figured it out, thank you
Automotive Expert
Sorry for delay, just getting back from supper. Nice! Glad you got it fixed up! Lemme know what ya found if you get the chance, that info might be able to help someone in the future! Add me to favorite experts list to start new threads, if anything comes up in the future, would be glad to help out! Thanks again for using!

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