SL 500 (230.475) V8-5.0L (113.963) (2004)
^
Buttons + and - for setting specific functions and volume control (S111s1)
Below, the buttons within the left multifunction steering wheel button group (S110) are listed in descending priority order:
^
Fanfare horn button (S110s5)
^
System select button (S110s3)
^
Scroll forward/back button (S110s1)
GF82.90-P-3001RL Scanning Of Switch Positions, Function
GF82.90-P-3001RL Scanning Of Switch Positions, Function
- with CODE (428) Steering wheel shift buttons
The switch positions of the following components are read in voltage-coded from steering column module (N80):
^
Left multifunction steering wheel button group (S110)
-
Scroll forward/back button (S110s1)
-
System selection button (S110s3)
-
Fanfare horn system button (S110s5)
^
Right multifunction steering wheel button group (S111)
-
Buttons + and - for setting specific functions and volume control (S111s1)
-
Accept/terminate phone call button (S111s3)
-
Fanfare horn system button (S111s5)
^
Left steering wheel gear shifter (S110/2) and right steering wheel gear shifter (S111/2) (vehicles up to 31.5.06 with code (428) Steering wheel shift
buttons)
^
Steering wheel gear shifter MINUS (S110/1) and steering wheel gear shifter PLUS (S111/1) (vehicles as of 1.6.06 with code (428) Steering wheel
shift buttons)
Steering column module (N80) detects the respective request and places it on the Controller Area Network bus, class B (interior) (CAN-B).
If several functions are simultaneously requested by a button press, the instrument cluster (A1) will always only activate one function.
Prioritization for simultaneous button press at the left multifunction steering wheel button group (S110):
^
Fanfare horn button (S110s5)
^
System select button (S110s3)
^
Scroll forward/back button (S110s1)
Prioritization for simultaneous button press at the right multifunction steering wheel button group (S111):
^
Fanfare horn button (S111s5)
^
Accept/terminate phone call button (S111s3)
^
Buttons + and - for setting specific functions and volume control (S111s1)
GF82.90-P-3001RM Scanning Of Switch Positions, Function
GF82.90-P-3001RM Scanning Of Switch Positions, Function
- except CODE (428) Steering wheel shift buttons
The button presses on the multifunction steering wheel (MFL) are read in voltage-coded by the steering column module (N80).
Different resistors are connected in series upstream and downstream of the individual buttons. Pressing the buttons relays different voltages to the