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.
Steering Wheel Position Function
The SCCM module has a steering angle sensor. This sensor records the current steering angle or the current steering movement and transmits this information to the SCCM control unit. The steering angle sensor signal is used internally by the SCCM control unit to reset the turn signal. The SCCM control unit transmits the steering angle information to the ABS/ESP control unit via the HS CAN if the vehicle has ESP (optional). The EHPS also uses this information. For the ESP version, the sensor is "multi-turn" capable, i.e. it can indicate the exact angular position across the entire steering range. Vehicles without ESP are fitted with a simplified version which, after 360° starts again at 0.
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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.