System Description: Outline

WARNING: This page is about a different car, the 2008 Infiniti FX45 and 2008 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

The auto light control system has an optical sensor inside it that detects outside brightness.

When the lighting switch is in AUTO position, it automatically turns ON/OFF the parking lamps and the headlamps in accordance with the ambient light. Sensitivity can be adjusted in four steps. For the details of the setting, Refer to "SETTING CHANGE FUNCTIONS ".

Optical sensor control mode can be changed by the function setting of CONSULT-III or display.

Optical sensor, power is supplied

from BCM (body control module) terminal 17
to optical sensor terminal 1.
Optical sensor, ground is supplied
to optical sensor terminal 3
through BCM terminal 18.
When ignition switch is turn to ON position, and

When outside brightness is darker than prescribed level, input is supplied
from optical sensor terminal 2
to BCM terminal 14

The headlamps will then illuminate. For a description of headlamp operation, Refer to "SYSTEM DESCRIPTION ".