High beam control, function - GF82.10-P-3004GZ

MODEL 164.1 /8 except CODE (615) Bi-xenon headlamp unit with integrated curve illumination 

Shown on model 164.1 

Fig 1: High Beam Control Function Diagram

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Function requirements 

• C. 15R On
• Low beam ON

Function 

Pressing the combination switch forward switches on the driving light. The steering column module acquires the switch position of the combination switch and transmits "High beam On" to the central gateway control unit via CAN-C. This transmits "High beam On" to the front SAM control unit via CAN-B.

The front SAM control unit transmits the information "High beam On" via CAN-B to the instrument cluster and actuates the left high beam in the left front lamp unit and the right high beam in the right front lamp unit. The instrument cluster actuates the blue high beam indicator lamp and thus visually indicates that the high beam is switched on.

Actuating headlamp flasher function 

When the headlamp flasher is pressed the functional sequence and signal flow is the same as for the high beam actuation. The difference between the headlamp flasher and high beam lies in the switch position of the combination switch. This must be drawn in the opposite direction to the headlamp flasher switch position and held there. The headlamp flasher and thus the high beam remain active for as long as the combination switch is held in the headlamp flasher switch position.

The headlamp flasher function is independent of the position of the rotary light switch.