interior lights not working on auto

I HAVE JUST REALIZED THAT WHEN I OPEN THE DOOR ON MY BIMMER INTERIOR LIGHTS ARE ARE NOT COMING ON OK,I THOUGHT ITS JUST A FUSE BUT NON OF THE FUSES ARE BLOWN.CAN ANYONE PLS HELP,MAY ITS SOMETHING SMALL 

The Ultimate BMW E36 Forum . . . Everything you'll need to know about BMW E36 cars will be found here! Join the discussion
https://www.bmwe36blog.com/forum/