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.
Structure and inner electrical connection
The sensor contains 3 Hall elements fitted side by side in one housing. The signals of the first and 3rd Hal elements form the differential signal to determine the signal frequency and air gap to the multi-pole sensor gear. The temporal offset of the signal of the middle element to the differential signal allows detection of rotation to the right or left.
| Item | Explanation |
|---|---|
| 1 | Sensor wheel |
| 2 | Hall effect sensors |
| 3 | Evaluation electronics |
| Pin | Explanation |
|---|---|
| 5 V | 5 Volts, supply voltage |
| SIG | Signal line |
| Kl. 31 | Terminal 31, ground |
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.