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Electrical function schematic of instrument cluster, comfort display - PE54.30-P-2056-97RAA

Code: Designation: Position:
1 Outside temperature indicator temperature sensor, signal 16J
10 Rotary light switch, status 16F
10 Rotary light switch, status 21K
2 Outside temperature, signal 15G
3 Wheel speed, signal 13G
4 Coolant temperature, signal 12F
5 Engine running, signal 12F
6 Circuit 15, status 14D
7 Multifunction steering wheel button group, signal 9B
7 Multifunction steering wheel button group, signal 13E
7 Multifunction steering wheel button group, signal 7B
8 Time synchronization, signal 16D
9 Rain/light sensor, status 16E
9 Rain/light sensor, status 22E
A1 Instrument cluster 14E
A1b1 Brightness sensor 16C
A1p13 Multifunction display 16C
A1p6 Electronic clock 16C
A1s4 Instrument and controls illumination button, bright 16C
A1s5 Instrument and controls illumination button, dim 16D
A2/56 Radio and navigation unit 19A
A40/3 COMAND operating, display and control unit 19B
B14 Outside temperature display temperature sensor 18J
B38/2 Rain/light sensor 22B
CAN B Interior CAN 15H
CAN B Interior CAN 19G
CAN B Interior CAN 14D
CAN B Interior CAN 17E
CAN B Interior CAN 19F
CAN C Engine compartment CAN 11D
CAN C Engine compartment CAN 8F
CAN C Engine compartment CAN 13H
Code 581 Comfort automatic air conditioning 13J
LIN 1 Instrument panel LIN 22K
LIN E1 Steering LIN 8B
N135 Steering wheel electronics 7B
N22 AAC [KLA] control and operating unit 15J
N22/7 Comfort AAC [KLA] control and operating unit 15J
N3/10 ME-SFI [ME] control unit 4G
N3/9 CDI control unit 4C
N47-5 ESP control unit 10J
N70 Overhead control panel control unit 22E
N72/1 Upper control panel control unit 20K
N73 EIS [EZS] control unit 14A
N80 Steering column module 10A
S1 Rotary light switch 22H
S110 Left multifunction steering wheel button group 3A
S111 Right multifunction steering wheel button group 5A
U1018 Valid for gasoline engine 276 2J
U127 Valid for engine 272, engine 273 KE 2J
U631 Valid for COMAND 18A
U74 Valid for diesel engines 2C
U75 Valid for gasoline engines 2G
U866 Valid for head unit APS operating unit, Audio 50 18A
U880 Valid for engine 642 2F
U932 Valid for engine 642 BLUETEC 2F
Fig 1: Instrument Cluster, Comfort Display Electrical Function Schematic (1 Of 2)
G10121481Courtesy of MERCEDES-BENZ USA
Fig 2: Instrument Cluster, Comfort Display Electrical Function Schematic (2 Of 2)
G10121482Courtesy of MERCEDES-BENZ USA