First look at the door switch. It could be stuck. Then, of course make sure that you dont have the switch on for the domelight. Ive seen a lot of people do that. If its not that, look at your owners manual and the fusebox diagram. Find the one that controls the interior lighting, specifically the dome light. Pull it, and hope the light goes off. If it doesnt youre in trouble. Youve definately got a short, and someone has apparently wired something bass ackwards. If it does go off, put it back in and see if the light sticks on. You can switch fuses, it could be malfunctioning. Good Luck. | 
dome light won't turn off 
