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Electrical function diagram for purging function - PE47.30-P-2052-97NBB

Code: Designation: Position:
1 Oxygen sensor sensor element, signal 7E
2 Engine load, signal 6G
3 Coolant temperature sensor, signal 5G
4 Charge air temperature sensor, signal 4E
5 Purging switchover valve, actuation 5C
6 Engine speed, signal 7D
7 Circuit 87, status 4G
8 Purging pressure sensor, signal 4C
B11/4 Coolant temperature sensor 5H
B17/8 Charge air temperature sensor 1E
B28/7 Pressure sensor downstream of throttle valve 7H
B4/4 Purging pressure sensor 2A
B70 Crankshaft Hall sensor 7B
Code 494 USA version 1A
F58 Engine compartment fuse and relay module 3J
F58kN Circuit 87M relay 3H
G3/3b1 Left oxygen sensor element upstream of catalytic converter 9E
G3/4b1 Right oxygen sensor element upstream of catalytic converter 9E
N3/10 ME-SFI [ME] control unit 5E
U1032 Valid for engine 278 and 157 4D
U391 Valid for gasoline engine 276.8 4D
Y58/1 Purge control valve 5A
Fig 1: Purging Function Electrical Function Diagram
G10077818Courtesy of MERCEDES-BENZ USA