9-3 FWD (9440) L4-2.0L Turbo (B207R) (2009)
Function
System calibration
The system is calibrated automatically once the car's engine has started. The stepper motors are activated and the light image is aimed at the edge of the
road, that is to say if the car is designed/configured for right-hand traffic, the optics are turned to the right during calibration. This is intended to prevent
the risk of dazzling other drivers. If the car is designed for right-hand traffic but is temporarily set for left-hand traffic, the calibration movement is to the
left. A position sensor monitors the position of the stepper motor.