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Electrical function schematic, synchronization of the injection and firing order - PE07.10-P-2706-97DAI

ENGINE 276.9 in MODEL 212 up to model year 2014 

Code: Designation: Position:
1 Engine speed, signal 7C
1 Engine speed, signal 4C
2 Crankshaft Hall sensor, signal 4D
3 Camshaft Hall sensor, signal 3E
4 Fuel injectors, actuation 4G
5 Ignition coils, actuation 6E
6 Circuit 87, status 3G
B6/4 Left intake camshaft Hall sensor 1F
B6/5 Right intake camshaft Hall sensor 1F
B6/6 Left exhaust camshaft Hall sensor 1F
B6/7 Right exhaust camshaft Hall sensor 1G
B70 Crankshaft Hall sensor 4C
CAN E Chassis CAN 6D
N10/1 Front SAM control unit with fuse and relay module 2K
N10/1kN Engine circuit 87 relay 2H
N3/10 ME-SFI [ME] control unit 4E
R4 Spark plugs 7H
T1/1 Cylinder 1 ignition coil 7F
T1/2 Cylinder 2 ignition coil 7F
T1/3 Cylinder 3 ignition coil 7F
T1/4 Cylinder 4 ignition coil 7G
T1/5 Cylinder 5 ignition coil 7G
T1/6 Cylinder 6 ignition coil 7G
Y76/1 Cylinder 1 fuel injector 4H
Y76/2 Cylinder 2 fuel injector 4H
Y76/3 Cylinder 3 fuel injector 4J
Y76/4 Cylinder 4 fuel injector 4J
Y76/5 Cylinder 5 fuel injector 4J
Y76/6 Cylinder 6 fuel injector 4J
Fig 1: Injection And Firing Order Electrical Function Diagram
G10054265Courtesy of MERCEDES-BENZ USA