LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2012 >> G25 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 81 (Exterior Lighting System) >> DTC/Circuit Diagnosis >> Optical Sensor >> Component Function Check
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Function Check

WARNING: This page is about a different car, the 2011 Nissan 370Z. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK OPTICAL SENSOR SIGNAL BY CONSULT-III

    CONSULT-III DATA MONITOR

    1. Turn the ignition switch ON.
    2. Select "OPTICAL SENSOR" of BCM (HEADLAMP) data monitor item.
    3. Turn the lighting switch AUTO.
    4. With the optical sensor illuminating, check the monitor status.
      MONITOR ITEM DESCRIPTION

      Monitor item Condition Voltage (Approx.)
      OPTICAL SENSOR Optical sensor When illuminating 3.1 V or more (1)
      When shutting off light 0.6 V or less
      (1) Illuminates the optical sensor. The value may be less than the standard value if brightness is weak.

      Is the item status normal? 

      YES: Optical sensor is normal.

      NO: Refer to "DIAGNOSIS PROCEDURE ".