That dome light is supposed to go off when all doors are closed. My guess is that one door is not closing fully or maybe the door switch is shorted. I would open each door (one at a time) and play with the switch to see if the light will go off when pushing in. If you can remove the switch, better yet. Find the one that when disconnected finally turns the light off and then fix it or replace it.
Answers & Comments
That dome light is supposed to go off when all doors are closed. My guess is that one door is not closing fully or maybe the door switch is shorted. I would open each door (one at a time) and play with the switch to see if the light will go off when pushing in. If you can remove the switch, better yet. Find the one that when disconnected finally turns the light off and then fix it or replace it.