Originally Posted by
onehundred80
Does anyone know how the light out indicator system works?
I added a dash cam to a doubled up fuse in the exterior light fuse panel and sometimes the 'Light Out' bulb is illuminated and sometimes not.
I would have thought adding more load to the system would not cause this, apparently not.

Are you sure this is the cause of the light illuminating? I would take the circuit out (both the hot and ground) and see if over the course of a couple days/weeks, if it lights again. Might be a coincidence?