406 - inside light problem.

[Rolebama]

With the interior light switch in the middle position: The light should come on when you unlock the door. Then, when you are in, it will fade out after a while. When you get out, it should come on and fade out, but, if you get out and lock the door, it should go straight out.
The other positions of the switch are 'on' which gives a permanent light until turned off, or the switch is moved back to the middle when it will fade off, and 'off'. Hope that makes sense.