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Home >> Mercedes Benz >> 2015 >> C300 Base >> Repair and Diagnosis >> Electrical >> Body Electrical >> Electrical System, Equipment & Instruments - 205 Chassis (4D Sedan) - 3 Of 4 >> Wiring Diagrams >> Electrical function schematic for energy management for engine start/stop >> Electrical function schematic for energy management for engine start/stop - PE54.10-P-2070-97FBA

Electrical function schematic for energy management for engine start/stop - PE54.10-P-2070-97FBA

Code: Designation: Position:
1 Alternator, signal 13C
10 Decoupling relay, actuation 4J
11 Circuit 87, status 8A
12 Engine start, request 12D
12 Engine start, request 7J
12 Engine start, request 12J
13 Specified alternator voltage, signal 12D
13 Specified alternator voltage, signal 7J
13 Specified alternator voltage, signal 12J
14 Excitation voltage, request 14J
15 Instrument cluster message, request 9G
15 Instrument cluster message, request 6J
2 Engine running, signal 12F
2 Engine running, signal 6F
2 Engine running, signal 10J
3 Alternator operating rate, signal 12F
3 Alternator operating rate, signal 10J
3 Alternator operating rate, signal 6G
4 Battery sensor, signal 4E
5 On-board electrical system battery, signal 4D
6 On-board electrical system energy state, signal 12C
6 On-board electrical system energy state, signal 8J
6 On-board electrical system energy state, signal 12H
7 Drivetrain operational, signal 12E
7 Drivetrain operational, signal 6G
7 Drivetrain operational, signal 11J
8 Hot start, signal 7E
9 ECO start/stop function additional battery relay, actuation 5C
A1 Instrument cluster 9F
A1p13 Multifunction display 9E
B95 Battery sensor 2E
CAN B Interior CAN 6K
CAN C1 Drive train CAN 12E
CAN HMI User interface CAN 9H
F32/3 Engine compartment prefuse box 4L
F32/3k1 Decoupling relay 4L
Flex E Chassis FlexRay 11K
G1 On-board electrical system battery 2D
G2 Alternator 14J
K114 ECO start/stop function additional battery relay 5B
LIN B15 Battery sensor LIN 3F
LIN B15 Battery sensor LIN 3D
LIN C1 Drive train LIN 14G
N10/6 Front SAM control unit 5D
N127 Drivetrain control unit 12G
N3/10 ME-SFI [ME] control unit 14A
N3/9 CDI control unit 10A
N73 Electronic ignition switch control unit 9J
R62 Voltage dip limiter 7B
U1018 Valid for gasoline engine 276 13C
U2027 Valid for vehicles with special equipment 1E
U2028 Not valid for vehicles with special equipment 1D
U362 Valid for gasoline engine 274 13C
U39 Valid for gasoline engine 177 13B
U406 Valid for diesel engine 626 9B
U561 Valid for Delphi system 9C
U562 Valid for Bosch system 10C
U948 Valid for diesel engine 651 9C
U948 Valid for diesel engine 651 9C
U974 Not valid for hybrid drive 7A
U978 Valid for hybrid drive 4A
U978 Valid for hybrid drive 4G
U978 Valid for hybrid drive 7D
U978 Valid for hybrid drive 9C
Fig 1: Engine Start/Stop Energy Management Electrical Function Schematic
G10133817Courtesy of MERCEDES-BENZ USA