How do you get door lamps to work on a vectra?

To get the door lamps to work on a Vectra, first, ensure that the bulbs are functioning properly and securely fitted in their sockets. Check the door switch, which is often located in the door frame; it should be clean and free of corrosion to ensure proper contact when the door is opened. If the lamps still do not work, inspect the vehicle's fuse box for any blown fuses related to the interior lighting. If all else fails, consult the vehicle's manual or a professional for further diagnosis.