System overview: Control

1.	Central electronic module (CEM)	4.	Motor, headlamp range adjustment
2.	Rear electronic module (REM)	5.	Suspension module (SUM) (vehicles with Four-C (Continuously Controlled Chassis Concept) only)
3.	Position sensor

An electric motor is controlled by the central electronic module (CEM) via a relay (ordinary high beam relay).

The motor drives a gear wheel which moves the reflector along its guides.

A sensor which detects the position of the reflector is connected to the motor.

• The electronics in the motor interprets the sensor information and generates a signal
• The signal is reconnected to the central electronic module (CEM).

If the reflectors are in the wrong position during high beam the reflectors are forced into a safety position;

• the warning lamp (orange) lights in the driver information module (DIM)
• an error message is also shown in the display in the driver information module (DIM).

If the high beam is activated with the light switch in 0 position, the high beam is only activated as long as the high beam lever is activated for a high beam flash. The headlamp switch must be in the "on" position in order for the high beam lamps to remain active.