Hi 180,
Okay, I tried some more permutations with and without the 200 ohm resistor. First, with the drivers door closed and using the fob to lock everything, I tried shorting pins 4 and 8 - nothing happened. My car is set up such that hitting the fob once unlocks the drivers door only (hit it again to open the passenger door lock) - so I hit the fob once, drivers door and center console lock opened, passenger side door stayed locked. Shorting pins 4 and 8 together, passenger door lock opens. With all the locks in the open position, using the 200 ohm resistor to short pins 4 and 8 together locks the drivers door and passengers door, but keeps the center console lock opened. (I didn't check the glove box, trunk or gas panel locks so I don't know what they were doing.) One difference between using the fob and shorting the pins is that with the fob, the hazard lights flash once, while shorting the pins, no flash. Some details - to touch pin 8, I had to insert a thin wire into the socket, my probe tip wasn't sharp enough to touch the contact otherwise.
-Jerry