LIGHTING SYSTEM


  1. FUNCTION OF MAIN COMPONENTS


    1. Automatic Headlight Beam Level Control System (Models with HID Headlights)

      Component Function
      Headlight Swivel ECU Assembly

      • Detects changes of vehicle movement based on the rear height control sensor sub-assembly and vehicle speed signal.

      • Outputs control signals to the headlight swivel motors based on the detected value.

      • Provides initial set control and a fail-safe function.
      Headlight Dimmer Switch Assembly Light Control Switch Outputs a light control signal and transmits it to the main body ECU (multiplex network body ECU).
      Headlight Unit LH/RH Headlight Swivel Motor LH/RH

      • Based on the signals received from the headlight swivel ECU assembly, each headlight swivel motor moves the projector unit in its headlight to vary its angle.

      • Each headlight swivel motor uses a stepper motor to precisely regulate the angle of the projector unit.
      Main Body ECU (Multiplex Network Body ECU) Receives a light control signal and transmits it to the headlight swivel ECU assembly.

      Brake Actuator Assembly

      - Skid Control ECU

      		 Receives speed sensor signals and transmits it to the headlight swivel ECU assembly.
      Rear Height Control Sensor Sub-assembly Detects vehicle movement and transmits a signal to the headlight swivel ECU assembly.
      Combination Meter Assembly Headlight Leveling Warning Light Flashes to inform the driver when the headlight swivel ECU assembly detects a malfunction in this system.

  2. FUNCTION


    1. The automatic headlight beam level control system mainly consists of the headlight swivel ECU assembly, rear height control sensor sub-assembly and 2 headlight swivel motors. The headlight leveling ECU assembly controls the system.

    2. The headlight swivel ECU assembly detects the movement of the suspension from the rear height control sensor sub-assembly and the vehicle speed from the combination meter assembly.

    3. The headlight swivel ECU assembly then controls the headlight swivel motor based on this information, in order to change the headlight reflector angle.

    4. When the headlight swivel ECU assembly detects that the vehicle is stopped and the ignition switch is ON, it executes the initial setting of the stepper motors.