What is probably complicating this is the car probably has the headlight warning buzzer. The door switches are probably not grounded.
The power for the dome light still comes from the fuse block (Dome/Brake) (pink wire) from there it goes to the brake pedal switch (just a splice, no switch functions). At that point it goes to the connector at the kick panel. From there the pink wire goes directly to the dome light.
Now the yellow wire is a different story.
Here we will follow the current to ground (away from the light).
From the dome light the yellow wire goes back to the same kick panel connector.
On the other side of that connector there looks to be two wires, one goes to the left door (looks to be a 1 wire switch) and the other continues.
From the kick panel connector the yellow wire continues to the dash dimmer/dome switch (again just a splice).
From that splice the yellow wire continues to the right door switch (looks to be a 1 wire switch).
That is probably without the warning buzzer.
The two wire door switches probably isolate the ground, I'm guessing in the warning buzzer/relay.
The buzzer takes the dome light grounds so if you open the door the buzzer goes off.
There is also a feed from the headlight switch (park lights) that goes to the buzzer as a power feed, not sure why it would need its own power as the park light feed should be able to power the buzzer.
Bottom line you can't check power at the door switch as it is just a ground, single wire or two.
Either way it is relatively a simple circuit.
So back to the original question, we would need to know is you have the buzzer or not (one wire or two on the door switches)
Alan
