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Electrical function diagram for secondary air injection - PE14.30-U-2050-99RAA

Code: Designation: Position:
1 Air pump relay, actuation 5 H
2 Electric air pump, actuation 5 K
B11/4 Coolant temperature sensor 4 B
B2/5 Hot film mass air flow sensor 2 J
B70 Crankshaft Hall sensor 7 F
F58kE Air pump relay 4 J
M33 Electric air pump 4 K
N3/10 ME-SFI [ME] control unit 4 D
Y32 Air pump switchover valve 1 D
Fig 1: Secondary Air Injection Function Diagram
G10120516Courtesy of MERCEDES-BENZ USA