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
All 4 pins at each plug connection are used. The outside pins are earth connections. The inner pins are supply voltage and signal cable. The two ground connection are connected on a board in the electronic module. Only 3 cables are used in the wiring harness.
| Item | Explanation |
|---|---|
| 1 | Transmitter aerial |
| 2 | Transmitter |
| 3 | Electronic component with evaluation electronics |
| 4 | Data interface |
The wheel electronics system consists of a plastic housing. The plastic housing contains a printed circuit board and the following components:
- Pressure sensor
- Temperature sensor
- Acceleration sensor
- Transmitter/receiver unit
- Evaluation electronics
- Battery
| Item | Explanation |
|---|---|
| 1 | Aerial with transmit and receive unit |
| 2 | Pressure, temperature and acceleration sensors |
| 3 | Battery |
| 4 | Evaluation electronics |
All 4 pins at each plug connection are used. The outside pins are earth connections. The inner pins are supply voltage and signal cable. The two ground connection are connected on a board in the electronic module. Only 3 cables are used in the wiring harness.
| Item | Explanation |
|---|---|
| 1 | Reception aerial |
| 2 | High-frequency receiver |
| 3 | Electronic component |
| 4 | Data interface |
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.