Dash board light comes on but very dim, how can I fix?

It's unclear what light you are referring to. If it's the battery light, the bulb may be fine but the problem may be the idle rpm is adjusted too low. Another possibility is a charging system issue. This link may help:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-10.html#post1973613

Be more specific.