Headlamp cleaning system, function - GF82.15-P-3000LE

MODEL 216.3 as of model year 09/YoM 08 

MODEL 221.0/1 as of model year 09/YoM 08 with CODE (600) Headlamp cleaning system 

Function requirements, general 

• C. 15R On
• Low beam/standing lights switched on

Headlamp cleaning system, general 

The headlamp cleaning system cleans the headlamps automatically.

Function sequence for headlamp cleaning system 

Following the fifth wash request by the combination switch (S4) the front SAM control unit with fuse and relay module (N10/1) actuates the headlamp cleaning system pump (M5/2).

The HCS [SRA] pump is activated again after five washing requests from the combination switch.

The number of washing requests is determined by a counter in the front SAM control unit.

An automatic counter reset occurs when the five wash requests have been reached or manually by switching circuit 15 off.

The rotary light switch (S1), which is read in via the instrument panel LIN by the upper control panel control unit (N72/1), enables the front SAM control unit to recognize the switched on low beam/standing lights.

The combination switch request is read in by the steering column tube module (N80), routed to the interior CAN via the central gateway control unit (N93) and read in by the front SAM control unit.

	Electrical system function schematic for headlamp cleaning system (HCS)	Model 216	PE82.15-P-2050-97CAA
		Model 221	PE82.15-P-2050-97SAA
	Front SAM control unit with fuse and relay module, component description	N10/1	GF54.21-P-6070LE
	Upper control panel control unit, component description	N72/1	GF54.21-P-6040LE
	Component description for the EZS control unit	N73	GF80.57-P-6003LE
	Steering column module, component description	N80	GF54.21-P-6050LE
	Central gateway control unit, component description	N93	GF54.21-P-4170LE