interior dome light stays on on 1994 Pontiac Firebird

how do I get interior dome light to turn off. It stayed on and ran down battery until I removed the fuse. Now the interior courtesy open door light has same problem.

1 answer 1 comment
Beside the knob that turns on the head lamps on there is an interior light dimmer knob. Is it turn all the way up?
That was my problem :D Thanks!