[steve99]

Id go to page 185 (or 268), front dooor switch signals BCU directly if dome light on and dash door indicator indicator on and window stuch down it looks like short to earth on G18 or H21 switch assembly or wiring.

remove offending switch assembly from door and disconnect see if light goes out if your lucky its just a stuffed door switch, then next best is short to earth in wiring and worst case is stuffed BCU (body control unit )

unlikely to be a fuse as you would get no light.
unlikely to be short to earth on courtesy light side as BCU would not get signal to indicate door ajar

It appears BCU is being signaled that door is permanently open most likely is stuffed door switch