Wiring Diagram For Drivetrain Control Unit - PE54.21-P-2141-97DCA
Model 238 up to model year 2021 Control unit N127
| Code: | Designation: | Position: |
|---|---|---|
| A0 | Use of wiring diagrams | 153L |
| B10/13 | Low-temperature circuit temperature sensor | 113L |
| B10/14 | Low-temperature circuit temperature sensor 2 | 52L |
| B11/15 | Engine radiator sensor for engine diagnosis | 88L |
| B37 | Accelerator pedal sensor | 49L |
| B37m1 | Accelerator pedal module actuator motor | 48L |
| B37n1 | Accelerator pedal module control unit | 50L |
| B53/1 | Clutch pedal sensor | 56L |
| B79/3 | Manual transmission main shifter shaft position sensor | 59L |
| CAN C | Engine CAN | 6K |
| CAN C | Engine CAN | 10K |
| CAN C | Engine CAN | 14K |
| CAN C | Engine CAN | 18K |
| CAN C | Engine CAN | 22K |
| CAN C | Engine CAN | 26K |
| CAN C | Engine CAN | 30K |
| CAN C1 | Drive train CAN | 33K |
| CAN L | Hybrid CAN | 125K |
| CAN PER | Peripherals CAN | 44K |
| Code 425 | 6-speed manual transmission | 54E |
| Code 460 | Canada version | 87J |
| Code 494 | USA version | 87H |
| Code 945 | China Stage 6 exhaust treatment | 66G |
| Code B01 | 48V technology | 75G |
| Code B01 | 48V technology | 51E |
| Code B01 | 48V technology | 124D |
| Code B01 | 48V technology | 128D |
| Code L | LEFT-HAND DRIVE | 3F |
| Code L | LEFT-HAND DRIVE | 73K |
| Code M005 | 4MATIC | 118E |
| Code M005 | 4MATIC | 118D |
| Code M256 | 6-CYLINDER INLINE SPARK-IGNITION ENGINE M256 | 13E |
| Code M256 | 6-CYLINDER INLINE SPARK-IGNITION ENGINE M256 | 82H |
| Code M256 | 6-CYLINDER INLINE SPARK-IGNITION ENGINE M256 | 143D |
| Code M256 | 6-CYLINDER INLINE SPARK-IGNITION ENGINE M256 | 69H |
| Code M264 | SPARK-IGNITION ENGINE M264 | 29E |
| Code M264 | SPARK-IGNITION ENGINE M264 | 127D |
| Code M274 | SPARK-IGNITION ENGINE M274 | 66G |
| Code M274 | SPARK-IGNITION ENGINE M274 | 17E |
| Code M274 | SPARK-IGNITION ENGINE M274 | 127D |
| Code M276 | SPARK-IGNITION ENGINE M276 | 25E |
| Code M276 | SPARK-IGNITION ENGINE M276 | 127E |
| Code M642 | DIESEL ENGINE OM642 | 21E |
| Code M654 | DIESEL ENGINE OM654 | 69G |
| Code M654 | DIESEL ENGINE OM654 | 5E |
| Code M654 | DIESEL ENGINE OM654 | 82J |
| Code M654 | DIESEL ENGINE OM654 | 107E |
| Code M654 | DIESEL ENGINE OM654 | 118D |
| Code M656 | 6-CYLINDER INLINE DIESEL ENGINE OM656 | 9E |
| Code M656 | 6-CYLINDER INLINE DIESEL ENGINE OM656 | 118D |
| Code M656 | 6-CYLINDER INLINE DIESEL ENGINE OM656 | 107E |
| Code M656 | 6-CYLINDER INLINE DIESEL ENGINE OM656 | 69G |
| Code R | RIGHT-HAND DRIVE | 3G |
| Code R | RIGHT-HAND DRIVE | 73K |
| Code U78 | AMG Sport exhaust system | 132D |
| F1/3 | Passenger-side A-pillar fuse box | 3L |
| F32/3 | Engine compartment pre-fuse box | 101L |
| F32/3f7 | Fuse 7 | 99K |
| Flex E | Chassis FlexRay | 38K |
| K40/8 | Engine fuse and relay module | 42L |
| K40/8 | Engine fuse and relay module | 94L |
| K40/8 | Engine fuse and relay module | 105L |
| K40/8f118 | Fuse 118 | 91L |
| K40/8f119 | Fuse 119 | 92L |
| M16/53 | Left exhaust flap actuator motor | 136L |
| M16/53 | Left exhaust flap actuator motor | 130L |
| M16/54 | Right exhaust flap actuator motor | 139L |
| M16/57 | Exhaust flap controller | 110L |
| M4/7 | Fan motor | 97L |
| M4/7x1 | Fan motor electrical connector | 96K |
| M43/6 | Low temperature circuit circulation pump 1 | 81L |
| M43/7 | Low temperature circuit circulation pump 2 | 77L |
| M43/7 | Low temperature circuit circulation pump 2 | 72L |
| M75/11 | Electric coolant pump | 67L |
| N10/6 | Front SAM control unit | 116L |
| N127 | Drivetrain control unit | 4A |
| N127 | Drivetrain control unit | 12A |
| N127 | Drivetrain control unit | 20A |
| N127 | Drivetrain control unit | 28A |
| N127 | Drivetrain control unit | 36A |
| N127 | Drivetrain control unit | 43A |
| N127 | Drivetrain control unit | 52A |
| N127 | Drivetrain control unit | 60A |
| N127 | Drivetrain control unit | 68A |
| N127 | Drivetrain control unit | 76A |
| 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 |
| N129 | Starter generator control unit | 145L |
| N3/10 | ME-SFI [ME] control unit | 14L |
| N3/10 | ME-SFI [ME] control unit | 18L |
| N3/10 | ME-SFI [ME] control unit | 26L |
| N3/10 | ME-SFI [ME] control unit | 30L |
| N3/9 | CDI control unit | 6L |
| N3/9 | CDI control unit | 10L |
| N3/9 | CDI control unit | 22L |
| W15/5 | Left front footwell ground point | 4G |
| W15/5 | Left front footwell ground point | 74K |
| W15/5 | Left front footwell ground point | 122H |
| W15/7 | Right front footwell ground point | 4F |
| IM 5/7 | Right front footwell ground point | 120H |
| IM 6/3 | Left major assembly compartment ground point | 74K |
| IM 8 | Left front seat crossmember ground point | 142G |
| W2 | Right front ground point (at lamp unit) | 84G |
| W2/2 | Left front ground point | 96G |
| W6/1 | Left taillamp trunk ground point | 130F |
| W9 | Left front ground point (at lamp unit) | 79K |
| X25/7 | Engine compartment/frame floor assembly electrical connector | 41H |
| X25/7 | Engine compartment/frame floor assembly electrical connector | 62J |
| X25/7 | Engine compartment/frame floor assembly electrical connector | 89D |
| X25/7 | Engine compartment/frame floor assembly electrical connector | 103F |
| X26/40 | Rear bumper electrical connector | 129H |
| X26/40 | Rear bumper electrical connector | 135E |
| X30/21 | Drive train CAN (CAN C1) potential distributor electrical connector | 34L |
| X30/27 | Peripherals CAN (CAN PER) potential distributor electrical connector | 45L |
| X30/44 | Hybrid CAN (CAN L) potential distributor electrical connector | 125L |
| X86 | Left exhaust gas flap actuator motor electrical connector | 135J |
| Y123 | Left active engine mount | 122L |
| Y123/1 | Right active engine mount | 120L |
| Y73/1 | Low-temperature circuit switchover valve | 84L |
| Z141/1z1 | Circuit 87 C1 connector sleeve | 89F |
| Z141/1z2 | Circuit 87 C1 connector sleeve | 142H |
| Z141/1z2 | Circuit 87 C1 connector sleeve | 145G |
| Z141/1z2 | Circuit 87 C1 connector sleeve | 91E |
| Z141/1z2 | Circuit 87 C1 connector sleeve | 129F |
| Z141/2z1 | Circuit 87 C2 connector sleeve | 86G |
| Z142z1 | Powertrain control unit LIN connector sleeve | 84G |
| Z142z2 | LIN C3 connector sleeve | 64F |
| Z142z4 | LIN C3 connector sleeve | 133G |
| Z195/1z1 | Ground connection connector sleeve | 140G |
| Z195z1 | Circuit 87C connector sleeve | 139G |
| Z4/3z1 | Tml. 30 connector sleeve | 2F |
| Z50/5z1 | Tml. 15 connector sleeve | 41E |
| Z6/8z1 | Sensor ground connection connector sleeve | 58G |
| Z6/8z3 | Sensor ground connection connector sleeve | 113F |
| Z7/41z1 | Sensor voltage connector sleeve | 56G |