Wiring Diagram For Electronic Ignition Lock Control Unit (EZS) - PE54.21-P-2104-97FBA
WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2023 Mercedes-Benz C43 AMG, 2022 Mercedes-Benz C43 AMG, 2021 Mercedes-Benz C43 AMG, 2020 Mercedes-Benz C43 AMG, and 2019 Mercedes-Benz C43 AMG. However, it is still accessible from the selected car via links, so may be relevant.
Model 205 up to model year 2019 Control unit N73 Model 253 (except 253.99) up to model year 2020 Control unit N73
| Code: | Designation: | Position: |
|---|---|---|
| A0 | Use of wiring diagrams | 80L |
| A2/18 | FM 1, AM, CL [ZV] and KEYLESS-GO antenna amplifier | 26L |
| A80 | Intelligent servo module for DIRECT SELECT | 31L |
| Code 233 | AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS | 62A |
| Code 233 | AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS | 64A |
| Code 239 | DISTRONIC PLUS | 64A |
| Code 239 | DISTRONIC PLUS | 62A |
| Code 348 | Emergency call/assistance system | 9H |
| Code 425 | 6-speed manual transmission | 37D |
| Code 427 | 7G-TRONIC PLUS automatic transmission | 28G |
| Code 427 | 7G-TRONIC PLUS automatic transmission | 33G |
| Code 488 | Chassis with steel/air suspension | 66B |
| Code 489 | AIR BODY CONTROL | 62B |
| Code 489 | AIR BODY CONTROL | 66B |
| Code 489 | AIR BODY CONTROL | 66A |
| Code 889 | KEYLESS-GO | 25D |
| Code 9U1 | ECALL RUSSIA (GLONASS) pre-installation | 9J |
| Code 9U1 | ECALL RUSSIA (GLONASS) pre-installation | 5D |
| Code 9U1 | ECALL RUSSIA (GLONASS) pre-installation | 8D |
| Code B54 | Live Traffic Information | 9H |
| Code E64 | ECALL RUSSIA (GLONASS) | 9J |
| Code E64 | ECALL RUSSIA (GLONASS) | 5D |
| Code E64 | ECALL RUSSIA (GLONASS) | 8D |
| Code F205 | MODEL SERIES 205 | 66B |
| Code F253 | MODEL SERIES 253 | 69D |
| Code F253 | MODEL SERIES 253 | 66A |
| Code L | LEFT-HAND DRIVE | 2D |
| Code L | LEFT-HAND DRIVE | 16D |
| Code M005 | 4MATIC | 33G |
| Code M005 | 4MATIC | 69D |
| Code R | RIGHT-HAND DRIVE | 2D |
| Code R | RIGHT-HAND DRIVE | 16D |
| K40/6 | Driver-side fuse and relay module | 3L |
| K40/6 | Driver-side fuse and relay module | 51L |
| K40/6f203 | Fuse 203 | 50L |
| K40/6f205 | Fuse 205 | 2L |
| N10/6 | Front SAM control unit | 47L |
| N112/1 | Telematics services communication module | 10L |
| N123/4 | Emergency call system control unit | 10L |
| N167 | E-Call Russia (GLONASS) control unit | 11L |
| N2/10 | Supplemental restraint system control unit | 43L |
| N26/5 | Electric steering lock control unit | 39L |
| N45 | All-wheel drive control unit | 71L |
| N69/1 | Left front door control unit | 18L |
| N69/2 | Right front door control unit | 18L |
| N73 | Electronic ignition switch control unit | 4A |
| N73 | Electronic ignition switch control unit | 12A |
| N73 | Electronic ignition switch control unit | 28A |
| N73 | Electronic ignition switch control unit | 20A |
| N73 | Electronic ignition switch control unit | 36A |
| 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 | 70A |
| W15/6 | Left front footwell ground point (CAN) | 23H |
| W34 | Left footwell ground point | 3G |
| W34 | Left footwell ground point | 38H |
| W34/3 | Right footwell ground point | 3G |
| X11/4 | Diagnostic connector | 7L |
| X18 | Cockpit wiring harness and frame floor assembly electrical connector | 21H |
| X18 | Cockpit wiring harness and frame floor assembly electrical connector | 26H |
| X18 | Cockpit wiring harness and frame floor assembly electrical connector | 70H |
| X18/35 | Cockpit wiring harness and frame floor assembly electrical connector | 21H |
| X18/35 | Cockpit wiring harness and frame floor assembly electrical connector | 26H |
| X18/35 | Cockpit wiring harness and frame floor assembly electrical connector | 39H |
| X18/35 | Cockpit wiring harness and frame floor assembly electrical connector | 17E |
| X18/35 | Cockpit wiring harness and frame floor assembly electrical connector | 32F |
| X30/20 | User interface CAN (CAN HMD) potential distributor electrical connector | 56L |
| X30/27 | Peripherals CAN (CAN PER) potential distributor electrical connector | 22L |
| X30/32 | Left interior CAN (CAN B) potential distributor electrical connector | 14L |
| X35/1 | Driver door electrical connector | 17H |
| X35/2 | Front passenger door electrical connector | 17H |
| Y3/8 | Fully integrated transmission control, control unit | 35L |
| Z35/12z1 | Diagnostic CAN (CAN D) low connector sleeve | 7G |
| Z35/13z1 | Diagnostic CAN (CAN D) high connector sleeve | 6G |