Ok, I've solved many wiring problems with various ECU but here, I'm dealing with a freak'n dome light.
The switch works fine. Pushing it manually kills the dome light, BUT when I close the door, the light goes off for split second and when the door is fully closed it comes back ON arrrrrrrhhhh
any ideas?

 

Maybe that switch on your door sill is broken and making it stick.

 

from the factory there is a small black rubber cover on the end of the switch,
if it falls off the light will come on sometimes...
I have a vacuum cap on one of mine..

 

dome light is the simplest of wiring available.
hot and a ground. :> when grounded its on. when not its off.
the lil switch u see in the pic jus grounds when pushed in. and is really frail. so jus find a junk yard one. or rig it.

mine isnt there on the drivers side. its always grounded. only the passengers side makes the light go off and on. i also made the hood work together with the dome light. as i was havin hood latch problems for a couple weeks.