Nissan Primera P12, Reverse Camera

Hi All,
I'm new in this forum and glad to be here,
I just got a Nissan Primera P12, year 2003, but I noticed that the reverse camera is not working so I'd like to know it is an issue or just doesn't exist, can any one could tell me how to check physicaly the camera. Thanks in advance.


I would also be glad if anyone can send the user guide(english version)