Your Vehicle: 2009 Nissan-Datsun Altima V6-3.5L (VQ35DE)
Vehicle » Lighting and Horns » Description and Operation » Auto Light System » System Description  
  System Description  


System Description

  • BCM (Body Control Module) controls auto light operation according to signals from optical sensor, lighting switch and ignition switch.
  • IPDM E/R (Intelligent Power Distribution Module Engine Room) operates parking, license plate, tail, front fog lamps and headlamps according to CAN communication signals from BCM.
  • Optical sensor detects ambient brightness of 800 to 2,500 lux. And optical sensor converts light (lux) to voltage, then sends the optical sensor signal to BCM.

The auto light control system has an optical sensor that detects outside brightness.
When the lighting switch is in AUTO position, it automatically turns ON/OFF the parking, license plate, tail, front fog lamps and headlamps in accordance with the ambient light. Sensitivity can be adjusted in four steps.
For the details of the setting, Refer to See: Testing and Inspection\Scan Tool Testing and Procedures\Exterior Lighting System\Common Item\CONSULT-III Function.