GF54.35-P-0001LE Fanfare Horn System, Function

GF54.35-P-0001LE Fanfare Horn System, Function
- as of model year 09


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.