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Home >> Mercedes Benz >> 2021 >> E450 Base, 2D Convertible >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instruments - 238 Chassis (5 Of 6) >> Wiring Diagrams >> Wiring Diagram For Drivetrain Control Unit >> Wiring Diagram For Drivetrain Control Unit - PE54.21-P-2141-97DCA

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
G15468972Courtesy of MERCEDES-BENZ USA
G15468973Courtesy of MERCEDES-BENZ USA
G15468974Courtesy of MERCEDES-BENZ USA
G15468975Courtesy of MERCEDES-BENZ USA
G15468976Courtesy of MERCEDES-BENZ USA
G15468977Courtesy of MERCEDES-BENZ USA
G15468978Courtesy of MERCEDES-BENZ USA
G15468979Courtesy of MERCEDES-BENZ USA
G15468980Courtesy of MERCEDES-BENZ USA