Function

Function

Steering wheel angle sensor




The steering wheel angle sensor (7/91) is integrated in the Steering wheel module (SWM) (3/254) and registers information about the steering wheel's angle and the number of steering wheel turns that have been made. The Steering wheel module (SWM) then transmits the information via the CAN network to the Brake control module (BCM) (4/16) (only vehicles with DSTC) and the Electrical power steering module (EPS) (4/99).

Controlling functions and menu selection using the steering wheel buttons

- Design and Function, audio module (AUD)
- Design and Function, multimedia module (MMM)
- Design and Function, engine control module (ECM)
- Design and Function, phone module (PHM)
- Design and Function, infotainment control module (ICM).
- Design and Function, Bluetooth phone module (BPM).

Controlling the headlamps and turn signal lamps
See Design and Function, central electronic module (CEM).

Horn
See Design and Function, central electronic module (CEM).

Windshield wiper and washer functions
See Design and Function, central electronic module (CEM).

Trip computer and displaying/erasing text messages




The left-hand control stalk (3/133) is used to control the trip computer and to display and erase text messages in the driver information module (DIM) (5/1). The steering wheel module (SWM) (3/254) transmits information to the driver information module (DIM) (5/1) on the controller area network (CAN) indicating which function is selected.
The trip computer menu is controlled using the roller on the left-hand control stalk. Turn the roller forwards or backwards to scroll through the menu one step at a time. Some menu selections, such as average speed and fuel consumption, can be reset using the RESET button.
Error messages displayed in the driver information module (DIM) display are erased using the READ button.
For additional information about the trip computer and text messages, see Design and Function, driver information module (DIM).