After turning on the headlights during driving it sometimes takes a while for the dashboard and tail lights to come on.
I tested the tail light fuse which was good. Noticed that when the dash and tail lights work there’s an interior click but not when they don’t so this could be a sticky relay if only we could find where it is.
This is a RHD 2009 Toyota Corolla 1.8 hatch that otherwise starts and drives fine. The headlights themselves operate with no problem.