AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM SYSTEM DESCRIPTION


  1. AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL


    1. General

      When the low beam headlights are on, the automatic headlight beam level control operates the headlight leveling motor in accordance with movement of the vehicle. The headlight leveling ECU assembly controls the system.

    2. Function of Main Components

      Component Outline
      Headlight Leveling ECU Assembly Receives various signals, calculates changes in the vehicle posture, and actuates the headlight leveling motor.
      Headlight Leveling Motor

      • Based on the signals received from the headlight leveling ECU assembly, the motors move the reflectors in the headlight to vary the low beam.

      • Uses a stepper motor to precisely regulate the angle of the projector.
      Rear Height Control Sensor Sub-assembly Transmits a height control sensor signal to the headlight leveling ECU assembly.
      Brake Actuator Assembly (Skid Control ECU) Transmits speed sensor signal to the headlight leveling ECU assembly.
      ECM Transmits an engine running status signal to the headlight leveling ECU assembly.
      Main Body ECU (Multiplex Network Body ECU) Transmits a headlight status signal.
      Combination Meter Assembly When the system malfunctions, the combination meter assembly alerts the driver by flashing "Headlight System Malfunction Visit Your Dealer" on the multi-information display in accordance with the signal from the headlight leveling ECU assembly.