Hi. If the interior light is not working check fuse 11 (crt lamps) and while your there fuse 10.(
BEM battery) and fuse 1 (cluster ign), this is from the fuse diag on the forums (
http://www.fordforums.com.au/vbporta...?articleid=498 ) but it differs from the fuse descriptions in the wiring diagrams for the
BEM wiring. Might pay to grab a test light to check fuses in future instead of swapping a problem from one circuit to another. Cheers MD