Legend of electrical function schematic, systems displayed in the cockpit central display, function - PE54.30-P-2062-60SAA
Model 221 with CODE (527) COMAND APS with single DVD drive (with navigation) with CODE (494) USA version as of Model Year 09/YoM 08
Model 221 with CODE (498) Japan version as of Model Year 09/YoM 08
| Code | Designation | Coordinates |
|---|---|---|
| A8/1 | Transmitter key | 13B |
| A40/3 | COMAND controller unit | 19E |
| A40/8 | COMAND display | 19A |
| A40/9 | Front central operating unit | 19J |
| A40/9s6 | Button "ON" | 19J |
| Code 386 | Mobile phone preinstallation with universal interface | 14J |
| Code 389 | Mobile phone preinstallation with universal interface, USA/Canada | 14J |
| Code 498 | Japan version | 14K |
| LVDS | Low voltage differential signal | 20D |
| N22/1 | AAC [KLA] control unit | 12J |
| N73 | EIS [EZS] control unit | 12B |
| N80 | Steering column module | 7E |
| N93 | Central gateway control unit | 12E |
| S110 | Left multifunction steering wheel button group | 1E |
| S111 | Right multifunction steering wheel button group | 3E |
| S148 | Center console button group | 15K |
| U52 | Valid for Japan | 17A |
| U54 | Valid for all except Japan | 18A |
| CAN A | Telematics CAN | 18D |
| CAN A | Telematics CAN | 19H |
| CAN B | Interior CAN | 12D |
| CAN B | Interior CAN | 12H |
| CAN-E | Chassis CAN | 9F |
| CAN F | Central CAN | 15F |
| LIN A1 | COU [ZBE] LIN | 16K |
| LIN E1 | Steering LIN | 4F |
| 1 | Audio/COMAND display, signal | 20D |
| 2 | Switch-on request, signal | 19D |
| 3 | Front central operating unit, signal | 12H |
| 3 | Front central operating unit, signal | 14E |
| 3 | Front central operating unit, signal | 19G |
| 4 | Circuit 15, status ON | 12D |
| 4 | Circuit 15, status ON | 17E |
| 5 | Center console button group, signal | 17K |
| 6 | Multifunction steering wheel button group, signal | 5F |
| 6 | Multifunction steering wheel button group, signal | 10E |
| 6 | Multifunction steering wheel button group, signal | 16E |