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Electrical function schematic for exhaust treatment - PE14.00-P-2051-97DAD

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ENGINE 156 in MODEL 212 

Code: Designation: Position:
1 Engine diagnosis indicator lamp, actuation 10E
2 Secondary air injection relay, actuation 8G
3 Electric air pump, actuation 11H
A1 Instrument cluster 11E
A1e58 Engine diagnosis indicator lamp 10D
B11/4 Coolant temperature sensor 3G
B2/6 Left hot film MAF sensor 4J
B2/7 Right hot film MAF sensor 4K
B70 Crankshaft Hall sensor 3F
CAN E Chassis CAN 8F
G3/3 Left oxygen sensor upstream of catalytic converter 6H
G3/4 Right oxygen sensor upstream of catalytic converter 6J
G3/5 Left oxygen sensor downstream of catalytic converter 6B
G3/6 Right oxygen sensor downstream of catalytic converter 6C
M33 Electric air pump 11J
N10/1kP Secondary air injection relay 9G
N3/10 ME-SFI [ME] control unit 5E
Y32 Air pump switchover valve 4C
Fig 1: Exhaust Treatment Electrical Function Schematic
G10242548Courtesy of MERCEDES-BENZ USA