Offside rear light cluster colour code

[macafee2]

Finding out the rear fog light had failed I unluged the plug on the light cluster. That was my first mistake. Rust, the pins were badly rusted and the plug stuck fast. I have tried to clean the pins but have made things worse, I now have no lights on the off side.

Could someone please tell me/confirm for me the wiring and pin colour code? Below is what I think it is

pin 1 Green/Brown Reverse
pin 2 Green/Black Indicator
pin 3 Green/Blue Stop
pin 4 Black Earth
pin 5 Red/ Blue Tail
pin 6 Blue/White Reverse

Where does the water come from for the pins to rust, all looks dry in the boot?

macafee2