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System Description
 
 
SYSTEM DIAGRAM
ComponentFunction
Combination switchInputs the each switch condition signal to BCM.
Optical sensorThe optical sensor outputs voltage signals to the BCM according to the brightness of the ambient light.
BCM
  • Detects each switch condition by the combination switch reading function.
  • Inputs the optical sensor signal from optical sensor.
  • Outputs the position light request signal to combination meter.
Combination meterTurns ON/OFF the illuminations according to the request from BCM.
 
 
OUTLINE
Each illumination is controlled by each function of BCM and combination meter.
Control by BCM
  • Parking, license plate, side marker and tail light control function
  • Combination switch reading function
  • Auto light function
Control by combination meter
  • Illumination control function
 
 
ILLUMINATION CONTROL
  • BCM detect combination switch condition by the combination switch reading function.
  • BCM transmits position light request signal to combination meter according to tail light ON condition. Refer to System Description.
  • Combination meter enters in the nighttime mode according to position light request signal and provides the power supply to each illumination.