Auto Light Adjustment System
WARNING: This page is about a different car, the 2012 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
Description
- BCM supplies voltage to the optical sensor when the ignition switch is turned ON or ACC.
- Optical sensor converts outside brightness (lux) to voltage and transmits the optical sensor signal to BCM.
- BCM judges dimming/brightening of combination meter and display according to brightness outside the vehicle, when ignition switch is ON.
- BCM transmits dimmer signal to combination meter via CAN communication, according to auto light adjustment conditions. Dimmer signal is also transmitted to AV control unit.
NOTE:
As to dimming/brightening timing, the sensitivity depends on settings. The settings can be changed with CONSULT. Refer to
"HEADLAMP: CONSULT FUNCTION (BCM - HEAD LAMP)
".
Auto Light Adjustment Timing Table
When the ignition switch is ON, the illumination of combination meter and display switches dimming/brightening in the following condition.
| Combination meter and display | Dimming/brightening timing |
|---|---|
| Dimming | Outside brightness is 1250 lx or less for 3 seconds or more. |
| Brightening | Outside brightness is 2500 lx or more for 5 seconds or more. |
BCM switches the illumination of combination meter and display to dimming when outside brightening obtained from the optical sensor signal is 1250 lx or less for 3 seconds or more. And BCM switches the illumination of combination meter and display to brightening when outside brightening from the optical sensor signal is 2500 lx or more for 5 seconds or more.