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Electrical function schematic for engine limp-home mode - PE07.10-P-2719-97DAE

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ENGINE 651 up to 2/28/13 in MODEL 212 (except 212.098/298) 

Code: Designation: Position:
1 Gear range, status 7F
2 Service brake, status 6E
3 Engine speed, signal 7H
4 Accelerator pedal sensor, signal 6H
5 Quantity control valve, actuation 4J
6 Fuel injectors, actuation 3F
7 Pressure regulator valve, actuation 3D
8 Camshaft Hall sensor, signal 7E
9 Circuit 87, status 7E
B37 Accelerator pedal sensor 5L
B6/1 Camshaft Hall sensor 8C
B70 Crankshaft Hall sensor 9J
CAN C Drive train CAN 9G
CAN E Chassis CAN 5D
Code 423 5-speed automatic transmission 11D
Code 427 7-speed automatic transmission 11G
L5 Crankshaft position sensor 7J
N10/1 Front SAM control unit with fuse and relay module 11B
N10/1kN Engine circuit 87 relay 9E
N15/3 Electronic transmission control unit 12E
N3/9 CDI control unit 5F
N30/4 Electronic Stability Program control unit 5A
N30/7 Premium Electronic Stability Program control unit 5B
U240 Valid for all except ECO start/stop function 6J
U252 Valid for ECO start/stop function 8J
U909 Valid for DISTRONIC PLUS 4A
U999 Not valid with DISTRONIC PLUS 4A
Y3/8 Fully integrated transmission control unit 12H
Y74 Pressure regulator valve 3D
Y76/1 Cylinder 1 fuel injector 1F
Y76/2 Cylinder 2 fuel injector 1F
Y76/3 Cylinder 3 fuel injector 1G
Y76/4 Cylinder 4 fuel injector 1G
Y94 Quantity control valve 3J
Fig 1: Engine Limp-Home Mode Electrical Function Schematic
G10242486Courtesy of MERCEDES-BENZ USA