1. BCM block (body control unit). M57, M58, M59.
2. Front door lock drive. Driver side: D11. Passenger side: D28.
3. Rear side door lock drive. Right: D65. Left: D45.
4. Front door switch. Right: B29. Left: B14.
5. Rear side door switch. Right: B42. Left: B19.
6. Connector of the ignition switch and the handle of the ignition lock M34 (with smart key)
7. Ignition lock connector M33 (without smart key)
8. Smart key block (with smart key)
9. Switch for locking and unlocking the door M54
10. Rear door switch D104
11. Rear door opener drive B46
12. Door lock relay M20 (with smart key)