Wiring Diagram For Electronic Ignition Lock Control Unit (EZS) - PE54.21-P-2104-97FCB
Model 253 (except 253.99) as of model year 2020 Control unit N73
| Code: | Designation: | Position: |
|---|---|---|
| A0 | Use of wiring diagrams | 88L |
| B92/12 | Short and long-range radar sensor | 63K |
| C8 | Park pawl capacitor | 12L |
| CAN B | Interior CAN | 36K |
| CAN D | Diagnostic CAN | 26J |
| CAN MMI | User interface CAN | 29K |
| CAN PER | Peripherals CAN | 33K |
| Code 2U0 | car2go scopes | 25L |
| Code 362 | HERMES LTE | 25L |
| Code 421 | 9G-TRONIC PLUS | 52K |
| Code L | LEFT-HAND DRIVE | 12G |
| Code L | LEFT-HAND DRIVE | 18L |
| Code L | LEFT-HAND DRIVE | 41L |
| Code L | LEFT-HAND DRIVE | 43D |
| Code R | RIGHT-HAND DRIVE | 12G |
| Code R | RIGHT-HAND DRIVE | 18L |
| Code R | RIGHT-HAND DRIVE | 41L |
| Code R | RIGHT-HAND DRIVE | 47D |
| F1/3 | Passenger-side A-pillar fuse box | 5L |
| F1/3f321 | Fuse 321 | 4L |
| F32/3 | Engine compartment prefuse box | 16L |
| Flex E | Chassis FlexRay | 66J |
| Flex E | Chassis FlexRay | 62J |
| Flex E | Chassis FlexRay | 60J |
| Flex E | Chassis FlexRay | 61J |
| Flex E | Chassis FlexRay | 63J |
| Flex E | Chassis FlexRay | 65J |
| Flex E | Chassis FlexRay | 67J |
| K40/8 | Engine fuse and relay module | 9L |
| K40/8f121 | Fuse 121 | 8L |
| K57/4 | Battery disconnect switch relay | 13J |
| N10/6 | Front SAM control unit | 22L |
| N112/9 | HERMES control unit | 27L |
| N127 | Drivetrain control unit | 62K |
| N145/1 | Drive unit control unit | 60K |
| N26/10 | Carsharing control unit | 27L |
| N30/4 | Electronic Stability Program control unit | 67K |
| N51/3 | AIR BODY CONTROL control unit | 65K |
| N62 | Parking system control unit | 65L |
| N62/4 | Mercedes-Benz Intelligent Drive control unit | 61K |
| N68 | Electrical power steering control unit | 66K |
| N69/1 | Left front door control unit | 45L |
| N69/2 | Right front door control unit | 49L |
| N69/5 | KEYLESS-GO control unit | 57L |
| N73 | Electronic ignition switch control unit | 4A |
| N73 | Electronic ignition switch control unit | 12A |
| N73 | Electronic ignition switch control unit | 20A |
| N73 | Electronic ignition switch control unit | 28A |
| N73 | Electronic ignition switch control unit | 35A |
| N73 | Electronic ignition switch control unit | 44A |
| N73 | Electronic ignition switch control unit | 52A |
| N73 | Electronic ignition switch control unit | 60A |
| N73 | Electronic ignition switch control unit | 66A |
| N73 | Electronic ignition switch control unit | 71A |
| N73 | Electronic ignition switch control unit | 80A |
| S2/3 | KEYLESS GO start/stop button | 39L |
| W15/5 | Left front footwell ground point | 13G |
| W15/7 | Right front footwell ground point | 13G |
| W16 | Major assembly compartment ground point | 19L |
| W16/4 | Right major assembly compartment ground point | 19L |
| W34 | Left footwell ground point | 42L |
| W34/3 | Right footwell ground point | 42L |
| W52/6 | Right center longitudinal member ground point | 4E |
| X11/4 | Diagnostic connector | 26K |
| X18/35 | Cockpit wiring harness and frame floor assembly electrical connector | 38H |
| X25/7 | Engine compartment/frame floor assembly electrical connector | 7H |
| X30/20 | User interface CAN (CAN HMD potential distributor electrical connector | 29L |
| X30/27 | Peripherals CAN (CAN PER) potential distributor electrical connector | 33L |
| X30/32 | Left interior CAN (CAN B) potential distributor electrical connector | 36L |
| X35/1 | Driver door electrical connector | 45H |
| X35/1 | Driver door electrical connector | 49H |
| Y3/8 | Fully integrated Transmission Control control unit | 53L |