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.
Functional description
2 microcontrollers are integrated in the Car Sharing Module.
One microcontroller manages the following interfaces:
- CAN bus interface (Controller Area Network)
- LIN bus interface (Local Interconnect Network)
- Near Field Communication interface (NFC, ID reader)
- Card reader interface (= Radio Frequency Identification RFID, additional cards)
- SIM card and GSM aerial interface (= Global Standard for Mobile Communication GSM, Subscriber Identity Module SIM)
- Terminal 30 interface (DC/DC converter)
The Car Sharing Module is locked in the base plate in the center console.
Additional cards (refuelling, parking, charging) are inserted in a holder in the Car Sharing Module and monitored by the CSM control unit. A label (RFID with 125 kHz) is stuck onto additional cards so that they can be monitored.
| Item | Explanation |
|---|---|
| 1 | Car sharing module (CSM) |
| 2 | 18 pin plug connection |
The Car Sharing Module is a further development with the following features:
- Low standby current consumption
- Stable online connection
- High safety standard
- Optimized conversion
- Service capability in the dealer organization
- Quality in series production
NO RELATED
Use the Manual With the Right Hardware
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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.