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

MODEL 164.1 /8 with 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.

High-beams actuation

The high beams actuation is comprised of the following subfunctions:

High beam
Headlight flasher

High beam

Function requirement

Circuit 15 On
Low beam ON

Function sequence for high beams

Pressing the combination switch forward requests the high beams. The steering column module acquires the switch position of the combination switch and transmits "High beams On" to the central gateway control unit via CAN-C.

This then sends over CAN-B the "High beams On" message to the front SAM control unit and the instrument cluster.

The front SAM control unit actuates the following components:

Left high beam and right high beam (both halogen)
Left high beam solenoid and right high beam solenoid

Due to the actuation of the left high beam solenoid and right high beam solenoid the covers, which mask off the lower part of the light beam with low beam, are moved away downwards. This in turn means that the full beam has recourse to the entire light beam.

The instrument cluster actuates the blue high beam indicator lamp and thus visually indicates that the high beam is switched on.

Headlamp flasher

Function requirements:

C. 15R On

Headlamp flasher function sequence

Pulling the combination switch back switches on the headlamp flasher.

The headlamp flasher remains activated as long as the combination switch is held in the pulled position.

The steering column module acquires the switch position of the combination switch and transmits "High beams On" to the central gateway control unit via CAN-C. This then sends over CAN-B the "High beams On" message to the front SAM control unit and the instrument cluster.

When the low beams are on, the front SAM control unit actuates the following components:

Left high beam and right high beam (both halogen)
Left high beam solenoid and right high beam solenoid

When the low beams are off, the front SAM control unit actuates the following components:

Left high beam and right high beam (both halogen)

When the low beams are off, only the halogen high beams are actuated for the headlamp flasher function, as it takes too long to ignite the xenon burners and for full brightness to be achieved.

Instrument cluster, component description	A1	GF54.30-P-6000GZ
Front SAM control unit, component description	N10	GF54.21-P-7010GZ
Upper control panel control unit, component description	N72/1 For code (489) AIRmatic (air suspension with level adjustment and adaptive damping system ADS), without code (430) Offroad package	GF54.21-P-6040GZ
	For code (489) AIRmatic (air suspension with level adjustment and adaptive damping system ADS) and code (430) Offroad package without	GF54.21-P-6040GZE
	For with code (489) AIRmatic (air suspension with level adjustment and adaptive damping system ADS) and code (430) Offroad package	GF54.21-P-6040GZU
	For model 164.8 with and with code (489) AIRmatic (air suspension without level adjustment and adaptive damping system ADS)	GF54.21-P-6040GZA
Electronic ignition/starter switch control unit (EIS), component description	N73	GF80.57-P-6000GZ
Steering column module component description	N80	GF54.21-P-6050GZ
Central gateway control unit, component description	N93	GF54.21-P-4170GZ
Rotary light switch, component description	S1	GF82.10-P-4106GZ
Combination switch, component description	S4	GF82.30-P-5000GZ