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.
RDC control unit
At the request of the RDC control unit, the following messages are queried via the RDC transmitters (125 kHz) by each wheel electronics system:
- Tire pressure
- Tire air temperature
- Battery status and identifier (ID) of the wheel electronics system
These messages are then sent across a high-frequency transmission path (433 MHz) to the RDC aerial. The measuring cycle is 54 seconds. The received radio signal are converted into a digital signal in the RDC aerial. This digital signal is forwarded on the bus to the RDC control unit.
| Item | Explanation |
|---|---|
| 1 | RDC control unit |
| 2 | Connector for RDC control unit |
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.