Interior lighting kangoo

Hello everyone, For a few months I have been the owner of a Renault Kangoo 1.2 16v bj.2006. Unfortunately, the interior lighting does not work. When the doors are opened, the door appears open symbol in the speedometer, but light does not work. The same when you press the switch on the lamp. Safety in the footroom is already changed. The bulbs also. I removed the lamp and connected it directly to the battery for sample, there it worked. If someone has an idea what the Probl could be?