Should also have said that you need to check that the boot roof is in it's lowered position - adjusted by the round knobs at each side and below the boot roof. The micro switch only works on the roof down command it is totally inoperable on the roof close command. This is because if the parcel shelf/boot roof is in the rained position there is not enough room to stow the folded roof - so it stops the micro switch from engaging, hence the roof won't go down and the amber/yellow warning light flashes.
Hope this helps more.....