Switch Operation

WARNING: This page is about a different car, the 2006 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

When any door switch is ON (door is opened), ground is supplied

to front and rear step lamps LH and RH and foot lamp LH and RH terminal -
through BCM terminal 62.
And power is supplied
through BCM terminal 56
to front and rear step lamps LH and RH terminal +
to ignition keyhole illumination terminal +
to door mirror LH and RH terminal 12
to front room/map lamp assembly terminal 6
to vanity lamp LH and RH terminal 1
to personal lamp 2nd row and 3rd row terminal 3
to cargo lamp terminal 2, and
to foot lamp LH and RH terminal +.
When map lamp switch is ON, ground is supplied
to front room/map lamp assembly terminal 5
through grounds M57, M61 and M79.
When vanity lamp (LH and RH) is ON, ground is supplied
to vanity lamp (LH and RH) terminal 2
through grounds M57, M61 and M79.
When cargo lamp is ON, ground is supplied through cargo lamp case ground.