Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Control Module
- The steering wheel angle sensor module (SAS) is integrated in the steering wheel module (SWM)
- Steering wheel angle sensor.
Only cars equipped with DSTC (dynamic stability and traction control) have a steering wheel angle sensor module (SAS). The easiest way to determine if a car is equipped with DSTC (Dynamic stability and traction control) is to search for a switch, marked DSTC, positioned in the panel on the climate control module (CCM).
The steering wheel angle sensor module (SAS) is integrated in 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 used by the DSTC system. The steering wheel angle sensor is installed on the steering wheel module (SWM). The sensor is directly connected to the steering wheel angle sensor module (SAS). The steering wheel angle sensor module (SAS) transmits signal information, via the high speed side of the controller area network (CAN), to the brake control module (BCM) and suspension module (SUM).
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.
Diagnostic trouble codes (DTCs) stored in the steering wheel angle sensor module (SAS). This information can be read off using VIDA via the data link connector (DLC) in the vehicle.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.