Thanks to SF and read already make me smarter but not quite look through. My complete interior lighting no longer works when opening the doors. When I turn it on by hand. Have ZV without FB. Can then in my opinion only be on the control unit/relay for the time delay, or the switch to control the device. Now my question, where sit said parts and how many switches there are ? because no matter which door I open there is no light on. Entry lights and door lights work.