Reverse lights

Hi guys
Has anybody ever had faulty reverse lights?? Mine only come on once every blue moon, any ideas what it could be? Dodgy connection? Fuse?
Just checking before i start messing.
 
Connection id imagine. Check the bulb located properly.

If it were a fuse it wouldn't work full stop.
 
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Yea Bulbs and connectors first then the green connector is the reverse switch you could remove it, when connected up with ignition on press it to see if the reverse lights work I don't think they are expensive to replace it does two jobs neutral and reverse switch.
 
Cheers guys, will have a mess when the weather is better, silly question but where abouts is the green connector located?
Thanks