Dear Haasman and Manny:
Thanks a lot for your clear explanations.
BTW, Haasman: you said that the last red (on the right of the drawing) is the fog light. However, I did not see any light bulb for
that red area on both of my tail lights. There is a bulb socket for that red area of each tail light, but it does not have any metal electrode to indicate that a light bulb can be inserted.