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.
4 wheel speed sensors
The active wheel speed sensors are connected to the DSC control unit. The complete signal processing takes place in the active wheel speed sensors.
The active wheel speed sensors also detect the direction of travel.
| Index | Explanation |
|---|---|
| 1 | Wheel speed sensor, front axle |
| 2 | Swivel bearing |
The wheel speed is measured at a magnetic increment wheel. The magnetic increment wheel is divided into 96 increments per rotation of the wheel. Each increment change is detected by the active wheel speed sensor and converted into a defined signal protocol of a pulse-width modulated signal.
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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.