System Description: Outline

WARNING: This page is about a different car, the 2005 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

The auto light control system uses an optical sensor that detects the brightness of outside light.

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

When the lighting switch is in "AUTO" position, power is supplied

through BCM (body control module) terminal 17
To auto light sensor terminal 1.

When lighting switch is in "AUTO" position, ground is supplied

To auto light sensor terminal 3
through BCM terminal 18.

When ignition switch is turned to "ON" or "START" position and when outside brightness is darker than prescribed level, input is supplied

To BCM terminal 14
From auto light sensor terminal 2.

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