This function is used to calibrate the xenon headlights.
Xenon headlights are required by the law to be equipped with systems for dynamic correction, to prevent dazzling oncoming traffic. The device works under the following conditions:
Static type, depending on the distribution of the load.
Dynamic type, depending on acceleration and deceleration.
The dynamic correction also increases the driving comfort, because the illuminated area is being stabilized and the driver's eyes do not need to constantly adapt to changes in the lighting.
A step motor actuator in each headlight.
Two load sensors, placed at front and rear suspension, connected to the left headlight.
This type of headlights uses xenon gas lamps to both low beam and high beam. Due to its high light intensity, the xenon headlight uses a system for dynamic positioning. This system is controlled by a control unit (located in the left headlight) that controls a step motor actuator in each headlight. The control unit compares the signal from the load sensors and calculates the instantaneous position of the headlight. A correction signal is sent to the headlights step motor actuator to adjust the light beam when necessary.
If the main control unit (located in the left headlight) is replaced, this system calibration must be performed.
Below: any conditions that may prevent the system calibration.
Motors not within suitable range for calibration.
Sensor value (front and rear) not within suitable range for calibration.
Preconditions for the test:
No additional load or persons in the car.
The vehicle must stand on level ground.
The vehicle shall be at a standstill (no speed signal).
No fault codes in main or slave control unit.
Start the function and follow the instructions in the program.
Dacă funcţia eşuează, verificaţi condiţiile de testare şi reparaţi orice defecţiuni.