sliding door inner panel

[greasemonkey62]

The drivers side rear sliding door is not activating the inner cabin light when it is opened, the near side door light operation works fine, I understand the switch to operate the light when the door is opened is actually inside the door, I got the door handle plastic surround cover off and the large three screw off which are under the handle cover, also the screw on the end of the door that holds the plastic secure, but I could not get the inner main cover off without it looking as though it would break any ideas anyone?
I am hoping the interior light switch just needs adjusting as they are over £110 any suggestions here too?

Cheers Ray.