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.
Optical Steering-angle Sensor
All systems that influence driving dynamics are required alongside other data for the steering angle and steering-angle speed as the basis for calculation.
The steering angle as well as steering-angle speed are picked up by a non-contact optical measuring system, the optical steering-angle sensor.
The data of the optical steering-angle sensor are processed by the electronics in the steering column switch cluster and sent across the FlexRay to the Integrated Chassis Management.
Information such as the absolute steering angle or the steering-wheel-turn is calculated. The optical steering-angle sensor picks up a steering angle of -640°/+640°.
| Index | Explanation |
|---|---|
| 1 | LED |
| 2 | Light-conducting element |
| 3 | Code disc |
| 4 | Steering column |
| 5 | Photo-transistors |
| 6 | Output: Conversion into electrical signals |
| 7 | Printed-circuit board |
NO RELATED
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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.