Wiring Diagram For Drivetrain Control Unit - PE54.21-P-2141-97XBA
Model 257, 290 up to model year 2021 Control unit N127
| Code: | Designation: | Position: |
|---|---|---|
| A0 | Use of wiring diagrams | 226L |
| B10/13 | Low-temperature circuit temperature sensor | 156L |
| B11/7 | Low-temperature circuit 2 temperature sensor | 45L |
| B37 | Accelerator pedal sensor | 56L |
| CAN C | Engine CAN | 37J |
| CAN C1 | Drive train CAN | 31K |
| CAN L | Hybrid CAN | 48K |
| CAN PER | Peripherals CAN | 41K |
| Code 2U1 | Radiator shutters | 62G |
| Code B01 | 48V technology | 103G |
| Code B01 | 48V technology | 43E |
| Code F257 | MODEL SERIES 257 | 62G |
| Code F257 | MODEL SERIES 257 | 185D |
| Code F290 | Model series 290 | 11E |
| Code F290 | Model series 290 | 107G |
| Code F290 | Model series 290 | 172D |
| Code L | LEFT-HAND DRIVE | 6G |
| Code L | LEFT-HAND DRIVE | 51K |
| Code L | LEFT-HAND DRIVE | 207G |
| Code L | LEFT-HAND DRIVE | 173G |
| Code M005 | 4MATIC | 167E |
| Code M177 | V8 SPARK-IGNITION ENGINE M177 - AMG | 35K |
| Code M177 | V8 SPARK-IGNITION ENGINE M177 - AMG | 35L |
| Code M177 | V8 SPARK-IGNITION ENGINE M177 - AMG | 129G |
| Code M177 | V8 SPARK-IGNITION ENGINE M177 - AMG | 140H |
| Code M177 | V8 SPARK-IGNITION ENGINE M177 - AMG | 171H |
| Code M256 | 6-CYLINDER INLINE SPARK-IGNITION ENGINE M256 | 35J |
| Code M256 | 6-CYLINDER INLINE SPARK-IGNITION ENGINE M256 | 35L |
| Code M256 | 6-CYLINDER INLINE SPARK-IGNITION ENGINE M256 | 99G |
| Code M256 | 6-CYLINDER INLINE SPARK-IGNITION ENGINE M256 | 140G |
| Code M256 | 6-CYLINDER INLINE SPARK-IGNITION ENGINE M256 | 125G |
| Code M256 | 6-CYLINDER INLINE SPARK-IGNITION ENGINE M256 | 146G |
| Code M264 | 4-CYLINDER INLINE SPARK-IGNITION ENGINE M264 | 35J |
| Code M264 | 4-CYLINDER INLINE SPARK-IGNITION ENGINE M264 | 35L |
| Code M654 | 4-CYLINDER INLINE DIESEL ENGINE M654 | 35K |
| Code M654 | 4-CYLINDER INLINE DIESEL ENGINE M654 | 37L |
| Code M654 | 4-CYLINDER INLINE DIESEL ENGINE M654 | 151E |
| Code M654 | 4-CYLINDER INLINE DIESEL ENGINE M654 | 82G |
| Code M654 | 4-CYLINDER INLINE DIESEL ENGINE M654 | 58D |
| Code M656 | 6-CYLINDER INLINE DIESEL ENGINE M656 | 35K |
| Code M656 | 6-CYLINDER INLINE DIESEL ENGINE M656 | 37L |
| Code M656 | 6-CYLINDER INLINE DIESEL ENGINE M656 | 151E |
| Code M656 | 6-CYLINDER INLINE DIESEL ENGINE M656 | 167E |
| Code M656 | 6-CYLINDER INLINE DIESEL ENGINE M656 | 89G |
| Code M656 | 6-CYLINDER INLINE DIESEL ENGINE M656 | 58D |
| Code R | RIGHT-HAND DRIVE | 6G |
| Code R | RIGHT-HAND DRIVE | 51K |
| Code R | RIGHT-HAND DRIVE | 207J |
| Code R | RIGHT-HAND DRIVE | 173G |
| Code U16 | Exhaust system with acoustic flap | 157E |
| Code U21 | AMG Performance exhaust system | 7D |
| Code U21 | AMG Performance exhaust system | 157E |
| Code U78 | AMG Sport exhaust system | 7D |
| Code U78 | AMG Sport exhaust system | 171C |
| Code U78 | AMG Sport exhaust system | 185C |
| F1/3 | Passenger-side A-pillar fuse box | 6L |
| F1/3f311 | Fuse 311 | 5L |
| F32/3 | Engine compartment prefuse box | 76L |
| F32/3 | Engine compartment prefuse box | 122L |
| F32/3f7 | Fuse 7 | 75K |
| F32/3f7 | Fuse 7 | 121K |
| Flex E | Chassis FlexRay | 52K |
| K40/8 | Engine fuse and relay module | 14L |
| K40/8 | Engine fuse and relay module | 28L |
| K40/8 | Engine fuse and relay module | 18L |
| K40/8f114 | Fuse 114 | 15L |
| K40/8f118 | Fuse 118 | 19L |
| K40/8f119 | Fuse 119 | 13L |
| K40/8f125 | Fuse 125 | 21L |
| K40/8kJ | CPC relay | 27L |
| M16/53 | Left exhaust flap actuator motor | 160L |
| M16/53 | Left exhaust flap actuator motor | 179L |
| M16/53 | Left exhaust flap actuator motor | 190L |
| M16/54 | Right exhaust flap actuator motor | 182L |
| M16/54 | Right exhaust flap actuator motor | 193L |
| M16/55 | Center exhaust flap actuator motor | 174L |
| M16/57 | Exhaust flap controller | 153L |
| M2/38 | Upper radiator trim flap actuator motor | 64L |
| M2/39 | Lower radiator trim flap actuator motor | 68L |
| M2/40 | Left lower radiator trim flap actuator motor | 111L |
| M2/41 | Right lower radiator trim flap actuator motor | 115L |
| M4/7 | Fan motor | 73L |
| M4/7 | Fan motor | 119L |
| M43/6 | Low temperature circuit circulation pump 1 | 80L |
| M43/6 | Low temperature circuit circulation pump 1 | 131L |
| M43/6 | Low temperature circuit circulation pump 1 | 127L |
| M43/7 | Low temperature circuit circulation pump 2 | 105L |
| M43/7 | Low temperature circuit circulation pump 2 | 87L |
| M43/7 | Low temperature circuit circulation pump 2 | 149L |
| M43/7 | Low temperature circuit circulation pump 2 | 138L |
| M43/7 | Low temperature circuit circulation pump 2 | 93L |
| M43/8 | Low-temperature circuit circulation pump 3 | 135L |
| N10/6 | Front SAM control unit | 164L |
| N127 | Drivetrain control unit | 203A |
| N127 | Drivetrain control unit | 211A |
| N127 | Drivetrain control unit | 51L |
| N127 | Drivetrain control unit | 157A |
| N127 | Drivetrain control unit | 4A |
| N127 | Drivetrain control unit | 11A |
| N127 | Drivetrain control unit | 19A |
| N127 | Drivetrain control unit | 28A |
| N127 | Drivetrain control unit | 36A |
| N127 | Drivetrain control unit | 44A |
| N127 | Drivetrain control unit | 59A |
| N127 | Drivetrain control unit | 54A |
| N127 | Drivetrain control unit | 68A |
| N127 | Drivetrain control unit | 77A |
| N127 | Drivetrain control unit | 84A |
| N127 | Drivetrain control unit | 93A |
| N127 | Drivetrain control unit | 101A |
| N127 | Drivetrain control unit | 109A |
| N127 | Drivetrain control unit | 117A |
| N127 | Drivetrain control unit | 125A |
| N127 | Drivetrain control unit | 133A |
| N127 | Drivetrain control unit | 141A |
| N127 | Drivetrain control unit | 149A |
| N127 | Drivetrain control unit | 166A |
| N127 | Drivetrain control unit | 174A |
| N127 | Drivetrain control unit | 182A |
| N127 | Drivetrain control unit | 191A |
| N127 | Drivetrain control unit | 196A |
| N3/10 | ME-SFI [ME] control unit | 36L |
| N3/10 | ME-SFI [ME] control unit | 36L |
| N3/9 | CDI control unit | 38L |
| N3/9 | CDI control unit | 38L |
| N30/4 | Electronic Stability Program control unit | 52L |
| N80 | Steering column module control unit | 53L |
| U1150 | Valid for fan motor 1000W | 71H |
| U1151 | Not valid for fan motor 1000W | 71G |
| W15/5 | Left front footwell ground point | 7G |
| W15/7 | Right front footwell ground point | 168G |
| W15/7 | Right front footwell ground point | 7G |
| W16/3 | Left major assembly compartment ground point | 170G |
| W16/3 | Left major assembly compartment ground point | 87H |
| W18 | Left front seat crossmember ground point | 195G |
| W19 | Right front seat crossmember ground point | 173G |
| W2 | Right front ground point at lamp unit | 64H |
| W2 | Right front ground point at lamp unit | 68H |
| W2 | Right front ground point at lamp unit | 80H |
| W2 | Right front ground point at lamp unit | 101H |
| W2 | Right front ground point at lamp unit | 111H |
| W2 | Right front ground point at lamp unit | 114H |
| W2 | Right front ground point at lamp unit | 131H |
| W2 | Right front ground point at lamp unit | 135H |
| W2 | Right front ground point at lamp unit | 144H |
| W2 | Right front ground point at lamp unit | 127H |
| W2/2 | Left front ground point | 72H |
| W2/2 | Left front ground point | 118H |
| W52/6 | Right center longitudinal member ground point | 173G |
| W6/1 | Left taillamp trunk ground point | 160H |
| W6/1 | Left taillamp trunk ground point | 184G |
| W9 | Left front ground point (at lamp unit) | 105H |
| W9 | Left front ground point (at lamp unit) | 148H |
| W9 | Left front ground point (at lamp unit) | 138H |
| X25/7 | Driver side engine compartment/frame floor assembly electrical connector | 9H |
| X25/7 | Driver side engine compartment/frame floor assembly electrical connector | 20H |
| X25/7 | Driver side engine compartment/frame floor assembly electrical connector | 60J |
| X25/7 | Driver side engine compartment/frame floor assembly electrical connector | 26G |
| X25/7 | Driver side engine compartment/frame floor assembly electrical connector | 84K |
| X25/7 | Driver side engine compartment/frame floor assembly electrical connector | 90K |
| X26 | Engine/engine compartment electrical connector | 91H |
| X26/40 | Rear bumper electrical connector | 177E |
| X26/40 | Rear bumper electrical connector | 188E |
| X30/21 | Drive train CAN (CAN C1) potential distributor | 31L |
| X30/27 | Periphery CAN (CAN PER) potential distributor | 41L |
| X30/44 | Hybrid-CAN (CAN L) potential distributor | 48L |
| X30/63 | Potential distributor electrical connector | 95J |
| X49 | Potential distributor | 97L |
| X86 | Left exhaust gas flap actuator motor electrical connector | 177H |
| X86 | Left exhaust gas flap actuator motor electrical connector | 189H |
| Y123 | Left active engine mount | 170L |
| Y123/1 | Right active engine mount | 168L |
| Y123/1x1 | Right active engine mount electrical connector | 168J |
| Y123x1 | Left active engine mount electrical connector | 170J |
| Y73/1 | Low-temperature circuit switchover valve | 101L |
| Y73/1 | Low-temperature circuit switchover valve | 144L |
| Z141/1z1 | Circuit 87C connector sleeve | 12G |
| Z141/1z1 | Circuit 87C connector sleeve | 65H |
| Z141/1z1 | Circuit 87C connector sleeve | 73G |
| Z141/1z1 | Circuit 87C connector sleeve | 69H |
| Z141/1z1 | Circuit 87C connector sleeve | 105H |
| Z141/1z1 | Circuit 87C connector sleeve | 112H |
| Z141/1z1 | Circuit 87C connector sleeve | 116H |
| Z141/1z1 | Circuit 87C connector sleeve | 119G |
| Z141/1z1 | Circuit 87C connector sleeve | 149H |
| Z141/1z2 | Circuit 87C connector sleeve | 9E |
| Z141/1z2 | Circuit 87C connector sleeve | 160G |
| Z141/1z2 | Circuit 87C connector sleeve | 174F |
| Z141/1z2 | Circuit 87C connector sleeve | 197F |
| Z141/1z3 | Circuit 87C connector sleeve | 137H |
| Z141/1z3 | Circuit 87C connector sleeve | 12F |
| Z141/2z1 | Circuit 87C connector sleeve | 80G |
| Z141/2z1 | Circuit 87C connector sleeve | 18G |
| Z141/2z1 | Circuit 87C connector sleeve | 128H |
| Z141/2z1 | Circuit 87C connector sleeve | 142H |
| Z141/2z1 | Circuit 87C connector sleeve | 99H |
| Z141/2z1 | Circuit 87C connector sleeve | 84H |
| Z141/2z1 | Circuit 87C connector sleeve | 90H |
| Z141/2z2 | Circuit 87 connector sleeve | 14G |
| Z141/2z2 | Circuit 87 connector sleeve | 131G |
| Z142z1 | LIN C3 connector sleeve | 93F |
| Z142z2 | LIN C3 connector sleeve | 88H |
| Z142z2 | LIN C3 connector sleeve | 59F |
| Z142z2 | LIN C3 connector sleeve | 96J |
| Z142z3 | LIN C3 connector sleeve | 109J |
| Z142z3 | LIN C3 connector sleeve | 144G |
| Z142z4 | LIN C3 connector sleeve | 175G |
| Z142z4 | LIN C3 connector sleeve | 187G |
| Z195/1z1 | Ground connection connector sleeve | 183F |
| Z195/1z1 | Ground connection connector sleeve | 194F |
| Z195z1 | Circuit 87C connector sleeve | 181F |
| Z195z1 | Circuit 87C connector sleeve | 193F |
| Z4/3z1 | Terminal 30t connector sleeve | 4G |
| Z50/5z1 | Circuit 15M connector sleeve | 20F |
| Z6/8z3 | Ground connection connector sleeve | 155G |