Legend of wiring diagram for electronic ignition switch control unit (EIS) - PE54.21-P-2104-60SAA
Model 221.0/1 control unit N73
| Code | Designation | Coordinates |
|---|---|---|
| A0 | Color code key | 23L |
| F38 | Backup battery fuse | 9L |
| N10/1 | Front SAM control unit with fuse and relay module | 15L |
| N73 | EIS [EZS] control unit | 4A |
| N73 | EIS [EZS] control unit | 12A |
| N73 | EIS [EZS] control unit | 18A |
| U12 | Valid for left-hand drive vehicles | 13C |
| U13 | Valid for right-hand drive vehicles | 13C |
| W15 | Power ground (electronics) | 13F |
| W15 | Power ground (electronics) | 14F |
| W34 | Ground (left footwell) | 14E |
| W34 | Ground (left footwell) | 15E |
| X30/31 | Chassis CAN/cockpit voltage distributor connector | 2L |
| X30/34 | Interior CAN/cockpit voltage distributor connector | 5L |