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Home >> Mercedes Benz >> 2009 >> S450 >> Repair and Diagnosis >> Electrical >> Body Electrical >> Electrical System, Equipment & Instructions - 221 Chassis - 9 Of 9 >> Wiring Diagrams >> Electrical function diagram for ATTENTION ASSIST >> Electrical function diagram for ATTENTION ASSIST - PE54.71-U-2050-97SAA

Electrical function diagram for ATTENTION ASSIST - PE54.71-U-2050-97SAA

Code: Designation: Position:
1 Circuit 15, status 12G
10 Warning message issue, request 8J
10 Warning message issue, request 10F
2 Multifunction steering wheel button group, signal 16F
2 Multifunction steering wheel button group, signal 22E
3 Steering angle, signal 16G
4 Steering column adjustment switch, status 16F
4 Steering column adjustment switch, status 21G
5 Combination switch, status 17F
5 Combination switch, status 20F
6 Cruise control, request 17F
6 Cruise control, request 21F
7 Rain/light sensor, status 8E
7 Rain/light sensor, status 7B
7 Rain/light sensor, status 7E
8 Audio operation, status 6F
8 Audio operation, status 12F
9 Time, signal 8H
9 Time, signal 12F
A1 Instrument cluster 8J
A40/3 COMAND control unit 3F
A8/1 Transmitter key 12K
B24/8 Attention assist sensor 17G
B38/2 Rain/light sensor 4B
CAN B Interior CAN 8D
CAN E Chassis CAN 11F
CAN E Chassis CAN 18F
CAN E Chassis CAN 11H
CAN F Central CAN 8H
CAN F Central CAN 5F
LIN E1 Steering LIN 22D
N30/6 Regenerative braking system control unit 14G
N47-5 ESP control unit 14D
N70 Overhead control panel control unit 8A
N73 EIS [EZS] control unit 11J
N80 Steering column module 22E
N93 Central gateway control unit 8E
S110 Left multifunction steering wheel button group 21B
S111 Right multifunction steering wheel button group 23B
S4 Combination switch 19G
S40/4 CC [TPM] switch 19E
S59 Steering column adjustment switch 19J
S59/1 Steering column adjustment/steering wheel heater switch 19K
U52 Valid for {{Japan}} 1E
U54 Valid for all except {{Japan}} 1E
U744 Valid for steering wheel heater 18K
U968 Valid for mild hybrid drive 13F
U977 Not valid for mild hybrid drive 13D
Fig 1: Attention Assist - Electrical Function Diagram (1 Of 2)
G10128067Courtesy of MERCEDES-BENZ USA
Fig 2: Attention Assist - Electrical Function Diagram (2 Of 2)
G10128068Courtesy of MERCEDES-BENZ USA