Operation of the steering column module - GF54.21-P-4104-02R

The steering column module (N80) has the following operations:

• Scans the multifunctional steering wheel modulator : 

  Left multifunctional steering wheel modulator (S110),

  Switching of the modulator back and forth (S110s1),

  System selection modulator (S110s3),

  Fanfare modulator (S110s5),

  Right multifunctional modulator group (S111)

  Modulator + and a, programming of specific functions and volume control (S111s1),

  Modulator for answering and ending telephone conversations (S111s3), modulator for fanfare (S111s5),

• Scans combination switch (S4), 
• Scans steering column positions, high, low, forwards and backwards (S59/1s1), 
• Scans touch shift TPM with variable speed limiters (S40/4), 
• Scans the switch SBS (S93/2)  ; this switch is stored in a housing unit together with the touch shift with speed limiter (S40/4),
• Scans and initializes the steering wheel sensor (N49) 
• Transmission of the ignition and test current over the spiral contact coil fanfare and airbag (A45)  for the ignition capsule on the driver (R12/3) airbag (AB).

The steering column module (N80) is connected with the engine compartment CAN and  the passenger compartment CAN.

The steering column module (N80) does not serve as a cross section (gateway) between the two bus systems: therefore, no data transmissions between the two bus systems are exchanged over the steering column module (N80).