Hi, Jim if you look at the wires where the bulb holder is you will see one (usually the black one ) is connected to the "outer" edge of the holder- this wil be the earth, the other (brown) wire will go to the centre pin which should be insulated from the other-this is the live feed. Hope this helps
Cheers, Dave:thumb:
Err, sorry, not strictly true?
The marker lamps on Winne, forget the make, are reversed if you will, ie, the pin has a direct connection to one of the screw holes whereas the outer is isolated, a reverse to the norm. We lost all the lights and it turned out some (proffesional) numpty had fitted based on the norm without bothering to look at what they were doing. In essence being the yank screws were the painted ones 'he' got away with is for some time until vibration and corrosion did there job and hey presto no lights.
Took a bit of finding that, 16 fittings to check, though fortunatly that was number 7ish