July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
Operation Table of BCM and Combination Switches
WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.
BCM reads operation status of combination switch using combinations shown in table below.
Fig 1: BCM And Combination Switches Operation Chart