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Home >> Mercedes Benz >> 2014 >> C250 Base >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instructions -- 204 C Class - 1 Of 6 >> Wiring Diagrams >> Electrical function schematic for on-board electrical system control >> Electrical function schematic for on-board electrical system control - PE54.10-P-2052-97FAA

Electrical function schematic for on-board electrical system control - PE54.10-P-2052-97FAA

Code: Designation: Position:
1 Circuit 61, status 6F
1 Circuit 61, status 12F
1 Circuit 61, status 18F
10 Quiescent current cutout relay, actuation 20J
2 Circuit 15, status 20F
3 Battery voltage, signal 21F
4 Quiescent current, signal 22F
5 Battery, status 15F
6 Alternator, request 4F
7 Idle speed increase, request 10F
7 Idle speed increase, request 16F
8 On-board electrical system limp-home mode, signal 10F
8 On-board electrical system limp-home mode, signal 16F
9 Consumer shutoff, request 16F
A8/1 Transmitter key 21C
B95 Battery sensor 25G
B95 Battery sensor 25E
CAN B Interior CAN 17G
CAN B Interior CAN 20D
CAN E Chassis CAN 11G
F32k2 Quiescent current cutout relay 20J
G2 Alternator 2G
G2 Alternator 2E
LIN B7 On-board electrical system LIN 22G
N10/1 Front SAM control unit with fuse and relay module 13F
N10/2 Rear SAM control unit with fuse and relay module 20F
N3/10 ME-SFI [ME] control unit 8G
N3/9 CDI control unit 8E
N73 Electronic ignition switch control unit 19A
U739 Valid for gasoline engine 271 DE 1G
U739 Valid for gasoline engine 271 DE 24G
U74 Valid for diesel engines 6E
U740 Valid for diesel engine 646 1E
U740 Valid for diesel engine 646 24E
U75 Valid for gasoline engines 6G
U819 Valid for gasoline engine 272 1G
U819 Valid for gasoline engine 272 24G
U880 Valid for diesel engine 642 1E
U880 Valid for diesel engine 642 24E
Fig 1: On-Board Electrical System Control - Electrical Function Schematic Diagram (1 Of 2)
G10080385Courtesy of MERCEDES-BENZ USA
Fig 2: On-Board Electrical System Control - Electrical Function Schematic Diagram (2 Of 2)
G10080386Courtesy of MERCEDES-BENZ USA