System Description [09/2015 - 08/2019]

AFS (Adaptive Front-lighting System)

General
- An AFS (Adaptive Front-lighting System) is used in order to ensure a wide low beam lighting area and realize excellent visibility during turns by moving the low beam.
- The AFS (Adaptive Front-lighting System) uses medium-to-high speed control and low speed control.
- The AFS can be disabled through a customize setting.
  Refer to CUSTOMIZE PARAMETERS [09/2015 - 08/2019]

Function of Main Components

Component	Outline
Headlight ECU Sub-assembly LH	Receives various signals, calculates the target lighting angle, and actuates the headlight leveling and swivel motor.
Headlight Swivel and Leveling Motor	Driven by the headlight ECU sub-assembly LH, the motor moves the low beam left or right to the angle calculated by the headlight ECU sub-assembly LH. A stepper motor is used for the headlight swivel and leveling motor. The headlight ECU sub-assembly LH determines the low beam angle based on the number of steps (position) of the stepper motor.
Steering Sensor	Detects the steering angle and direction and outputs signals to the headlight ECU sub-assembly LH.
Brake Actuator Assembly (Skid Control ECU)	Transmits speed sensor signals (front LH and RH) to the headlight ECU sub-assembly LH.
ECM	Transmits an engine running status signal to the headlight ECU sub-assembly LH. Transmits a shift position signal to the headlight ECU sub-assembly LH. The headlight ECU sub-assembly LH determines whether the vehicle is moving forward or backward based on this signal.
Main Body ECU (Multiplex Network Body ECU)	Transmits a headlight status signal.
Combination Meter Assembly	If the system malfunctions, a warning message will be displayed on the multi-information display in the combination meter assembly in accordance with the signal from the headlight ECU sub-assembly LH.

Low Speed Control

The headlight ECU sub-assembly LH performs low speed control when all of the following conditions are met:
- The low beam headlights are on.
- The vehicle speed is between 10 km/h (6 mph) and 30 km/h (19 mph).
- The steering wheel is turned 6 degrees or more.

SWIVEL ANGLE RANGE

Medium-to-High Speed Control

The headlight ECU sub-assembly LH performs medium-to-high speed control when all of the following conditions are met:
- The low beam headlights are on.
- The vehicle speed is 30 km/h (19 mph) or more.
- The steering wheel is turned 7.5 degrees or more.

SWIVEL ANGLE RANGE

Operation Stop Condition
- The headlight ECU sub-assembly LH stops performing control when any of the following conditions is met:
  - The engine is stopped.
  - The low beam headlights are turned off.
  - The vehicle speed becomes less than 10 km/h (6mph).
  - The steering angle becomes less than 6 degrees.
  - The shift lever is moved to N or R.
Initial Set Control
When the engine is started, the headlight ECU sub-assembly LH operates the headlight leveling and swivel motors to confirm the initial position. The headlights are moved toward the center of the vehicle and then returned to their normal position. The headlight ECU sub-assembly LH does this to confirm the initial position of the headlights.