Wiring Diagram For Drivetrain Control Unit - PE54.21-P-2141-97XCB
Model 257, 290 with engine 256 as of model year 2021 Control unit N127
| Code: | Designation: | Position: |
|---|---|---|
| A0 | Use of wiring diagrams | 186L |
| B11/6 | Low-temperature circuit 1 temperature sensor | 45L |
| B11/7 | Low-temperature circuit 2 temperature sensor | 43L |
| B37 | Accelerator pedal sensor | 56L |
| CAN C | Engine CAN | 36K |
| CAN C1 | Drive train CAN | 31K |
| CAN L | Hybrid CAN | 48K |
| CAN PER | Peripherals CAN | 40K |
| Code 2U1 | Radiator shutters | 62G |
| Code F257 | MODEL SERIES 257 | 62G |
| Code F257 | MODEL SERIES 257 | 149D |
| Code F290 | Model series 290 | 11E |
| Code F290 | Model series 290 | 90G |
| Code F290 | Model series 290 | 135D |
| Code F290 | Model series 290 | 44A |
| Code L | LEFT-HAND DRIVE | 6G |
| Code L | LEFT-HAND DRIVE | 51K |
| Code L | LEFT-HAND DRIVE | 172G |
| Code L | LEFT-HAND DRIVE | 136G |
| Code M177 | V8 SPARK-IGNITION ENGINE M177 - AMG | 135H |
| Code R | RIGHT-HAND DRIVE | 6G |
| Code R | RIGHT-HAND DRIVE | 51K |
| Code R | RIGHT-HAND DRIVE | 172J |
| Code R | RIGHT-HAND DRIVE | 136G |
| Code U16 | Exhaust system with acoustic flap | 7D |
| Code U16 | Exhaust system with acoustic flap | 126E |
| Code U78 | AMG Sport exhaust system | 7D |
| Code U78 | AMG Sport exhaust system | 135C |
| Code U78 | AMG Sport exhaust system | 149C |
| 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 | 105L |
| F32/3f7 | Fuse 7 | 75K |
| F32/3f7 | Fuse 7 | 104K |
| 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 |
| K40/8 | Engine fuse and relay module | 114L |
| K40/8f114 | Fuse 114 | 15L |
| K40/8f118 | Fuse 118 | 19L |
| K40/8f119 | Fuse 119 | 13L |
| K40/8f125 | Fuse 125 | 21L |
| K40/8f132 | Fuse 132 | 113L |
| K40/8kJ | CPC relay | 27L |
| M16/53 | Left exhaust flap actuator motor | 128L |
| M16/53 | Left exhaust flap actuator motor | 142L |
| M16/53 | Left exhaust flap actuator motor | 153L |
| M16/54 | Right exhaust flap actuator motor | 145L |
| M16/54 | Right exhaust flap actuator motor | 157L |
| M16/55 | Center exhaust flap actuator motor | 138L |
| 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 | 94L |
| M2/41 | Right lower radiator trim flap actuator motor | 98L |
| M4/7 | Fan motor | 73L |
| M4/7 | Fan motor | 102L |
| M43/6 | Low temperature circuit circulation pump 1 | 80L |
| M43/6 | Low temperature circuit circulation pump 1 | 110L |
| M43/7 | Low temperature circuit circulation pump 2 | 88L |
| M43/7 | Low temperature circuit circulation pump 2 | 123L |
| N10/6 | Front SAM control unit | 133L |
| N127 | Drivetrain control unit | 168A |
| N127 | Drivetrain control unit | 176A |
| N127 | Drivetrain control unit | 51L |
| N127 | Drivetrain control unit | 4A |
| N127 | Drivetrain control unit | 11A |
| N127 | Drivetrain control unit | 19A |
| N127 | Drivetrain control unit | 28A |
| N127 | Drivetrain control unit | 37A |
| N127 | Drivetrain control unit | 42A |
| 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 | 157A |
| N3/10 | ME-SFI [ME] control unit | 36L |
| N30/4 | Electronic Stability Program control unit | 52L |
| N80 | Steering column module control unit | 53L |
| W15/5 | Left front footwell ground point | 7G |
| W15/7 | Right front footwell ground point | 7G |
| W18 | Left front seat crossmember ground point | 159G |
| W19 | Right front seat crossmember ground point | 137G |
| 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 | 84H |
| W2 | Right front ground point at lamp unit | 94H |
| W2 | Right front ground point at lamp unit | 97H |
| W2 | Right front ground point at lamp unit | 119H |
| W2 | Right front ground point at lamp unit | 110H |
| W2/2 | Left front ground point | 72H |
| W2/2 | Left front ground point | 101H |
| W52/6 | Right center longitudinal member ground point | 137G |
| W6/1 | Left taillamp trunk ground point | 128H |
| W6/1 | Left taillamp trunk ground point | 148G |
| W9 | Left front ground point (at lamp unit) | 88H |
| W9 | Left front ground point (at lamp unit) | 123H |
| 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 |
| X26/40 | Rear bumper electrical connector | 141E |
| X26/40 | Rear bumper electrical connector | 152E |
| X30/21 | Drive train CAN (CAN C1) potential distributor | 31L |
| X30/27 | Periphery CAN (CAN PER) potential distributor | 40L |
| X30/44 | Hybrid-CAN (CAN L) potential distributor | 48L |
| X86 | Left exhaust gas flap actuator motor electrical connector | 141H |
| X86 | Left exhaust gas flap actuator motor electrical connector | 152H |
| Y73/1 | Low-temperature circuit switchover valve | 84L |
| Y73/1 | Low-temperature circuit switchover valve | 119L |
| 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 | 89H |
| Z141/1z1 | Circuit 87C connector sleeve | 95H |
| Z141/1z1 | Circuit 87C connector sleeve | 98H |
| Z141/1z1 | Circuit 87C connector sleeve | 102G |
| Z141/1z1 | Circuit 87C connector sleeve | 124H |
| Z141/1z2 | Circuit 87C connector sleeve | 9E |
| Z141/1z2 | Circuit 87C connector sleeve | 129G |
| Z141/1z2 | Circuit 87C connector sleeve | 137F |
| Z141/1z2 | Circuit 87C connector sleeve | 160F |
| 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 | 111H |
| Z141/2z1 | Circuit 87C connector sleeve | 82H |
| Z141/2z2 | Circuit 87 connector sleeve | 14G |
| Z142z1 | LIN C3 connector sleeve | 82F |
| Z142z2 | LIN C3 connector sleeve | 60F |
| Z142z3 | LIN C3 connector sleeve | 92J |
| Z142z3 | LIN C3 connector sleeve | 119G |
| Z142z4 | LIN C3 connector sleeve | 139G |
| Z142z4 | LIN C3 connector sleeve | 150G |
| Z195/1z1 | Ground connection connector sleeve | 146F |
| Z195/1z1 | Ground connection connector sleeve | 157F |
| Z195z1 | Circuit 87C connector sleeve | 145F |
| Z195z1 | Circuit 87C connector sleeve | 156F |
| Z4/3z1 | Terminal 30t connector sleeve | 4G |
| Z50/5z1 | Circuit 15M connector sleeve | 20F |
| Z6/8z3 | Ground connection connector sleeve | 45F |