Control Module

Courtesy of VOLVO CARS CORPORATION

1. The steering wheel angle sensor module (SAS) is integrated in the steering wheel module (SWM).
2. Contact reel
3. Steering wheel angle sensor

The Steering Wheel Angle Sensor Module (SAS) is integrated in the lever module together with the Steering Wheel Module (SWM). The only function of the Steering Angle Sensor Module (SAS) is to process the signals from the steering wheel angle sensor. The signals are used by the brake system's DSTC/ESC function, among other things. The Steering Wheel Angle Sensor Module (SAS) transmits signal information, via the high speed side of the controller area network (CAN). The signals are used by several systems, for example, the Brake Control Module (BCM) for the DSTC/ESC function, the Suspension Module (SUM) for the Four-C function, etc.

Steering wheel angle sensor and Steering wheel angle sensor module (SAS) are located on the underside of the contact reel.

If a fault occurs, the steering wheel angle sensor module (SAS) detects this and a diagnostic trouble code (DTC) is stored. The DSTC function is switched off.

Stored diagnostic trouble codes (DTCs) are stored in the Steering wheel angle sensor module (SAS). The information can be read out via the data link connector in the vehicle.