A poor electrical ground can cause the dome light not to work.
Car Problem Reports
Honda Accord Dome light may not work due to poor electrical ground
Honda Accord Problem
Average Mileage: 88,081 mi (50,000 mi - 118,000 mi)
Visitor, 2010 Honda Accord, 50,000 mi
The dome light quit working. I didn't have time to check the bulb and did nothing. About a month later, it started working again. Then about 2 weeks after that, it quit working again. It hasn't worked for about the last 4 months.
Visitor, 2007 Honda Accord, 96,245 mi
The front dome light will not come on when the front doors open. I replaced the whole thing and it worked for a while then stopped working again.
Dome light sometimes does not turn on.