Road Light Fuses - Stirling Europa 1995

Hi does anyone know where the fuses are located on the Stirling Europa 1995 500es 3 berth?

I have no left hand indicator, brake light and n/s awning light working, could it be blown fuses?. I have checked around the caravan inside under the bunks, but I cannot see any.

The manual says fuses are at the rear of the battery box, but have looked and they are not there. Any help please regards Phil.