Yo I got a civic with 100K on it I have a battery light on with the check engine light on(but I have no cat) and the maintenance required on also... I replaced the alternator battery and the spark plugs... it will ran fine for about 3 days with then the battery light came on again and none of my gauges work now no headlight no interior accessory's work either won't start either... Do you know my problem

. Check ignition switch for wear, pitting, and melting:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-46563-2.html#post224652

I suspect the ignition switch is bad. If the problem persists:

. Check all under-hood and under-dash fuses with a test light or multimeter:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-46563-3.html#post252145

. Check for codes.