Fanfare horn system, function - GF54.35-P-0001LE

MODEL 221.0/1, 216.3 as of Model Year 09/Modification year 08 

General function requirements 

• Circuit 15 On

The status of circuit 15 is transmitted by the EIS [EZS] control unit (N73) via the interior CAN.

Fanfare horns, general 

The left fanfare horn (H2) and right fanfare horn (H2/1) are the audible warning system on the vehicle.

Function sequence - operate fanfare horns 

The operation of the fanfare horns is requested by pressing fanfare horns buttons (S110s5, S111s5). The status of the fanfare horn buttons is read in by the steering column tube module (N80) via the steering LIN.

The steering column tube module transmits the request on further to the central gateway control unit (N93) via the interior CAN. The central gateway control unit transmits the request to the front SAM control unit with fuse and relay module via the interior CAN (N10/1). The front SAM control unit actuates the fanfare horns relay (N10/1kF). As a result of this the fanfare horns relay switches through the power supply (circuit 30) to the fanfare horns.

The signal tone sounds as long as one of the fanfare buttons is pressed.

	Fanfare position of components		GF54.35-P-0001-01LE
	Electrical function schematic, fanfare horns	Model 216	PE54.35-P-2051-97CAA
		Model 221	PE54.35-P-2051-97SAA
	Fanfare horns block diagram		GF54.35-P-0001-03LE
	Front SAM control unit with fuse and relay module, component description	N10/1	GF54.21-P-6070LE
	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