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Home >> Mercedes Benz >> 2008 >> S450 >> Repair and Diagnosis >> Restraints >> Seat Belts >> Seats, Bunks, Restraint Systems - 221 Chassis - 4 Of 4 >> Wiring Diagrams >> Function diagram, electrical system, seat adjustment (ESV) >> Function diagram, electrical system, seat adjustment (ESV) - PE91.29-U-2050-97SAC

Function diagram, electrical system, seat adjustment (ESV) - PE91.29-U-2050-97SAC

Code: Designation: Position:
1 Circuit 15R (for normalization), status ON and circuit 50 (for adjustment), status OFF 6H
2 Manual adjustment or memory function, request 8A
2 Manual adjustment or memory function, request 7E
2 Manual adjustment or memory function, request 8C
3 Store memory positions, request 7E
3 Store memory positions, request 9A
3 Store memory positions, request 9C
4 Acknowledgement tone after memory positions stored successfully, request 4F
4 Acknowledgement tone after memory positions stored successfully, request 3D
5 Seat adjustment motors, actuation 10F
6 Hall sensors, signal 8F
7 Front passenger seat operation from driver seat, request 9A
8 Front passenger seat operation from right rear seat, request 8H
8 Front passenger seat operation from right rear seat, request 11K
A1 Instrument cluster 2B
A8/1 Transmitter key 4K
CAN B Interior CAN 7D
CAN B Interior CAN 7J
CAN B Interior CAN 6J
CAN B Interior CAN 5F
CAN F Central CAN 2E
LIN B1 Front door LIN 10B
LIN B1 Front door LIN 10C
LIN B2 Rear door LIN 12K
M27/1 Left front seat fore/aft adjustment motor 12E
M27/10 Left front seat height adjustment motor 12G
M27/4 Left front head restraint motor 12F
M27/5 Left front backrest angle adjustment motor 12F
M27/8 Left front seat cushion fore/aft motor 12F
M27/9 Left front seat cushion inclination motor 12F
M28/1 Right front seat fore/aft adjustment motor 12G
M28/1 Right front seat fore/aft adjustment motor  
M28/10 Right front seat height adjustment motor 12H
M28/10 Right front seat height adjustment motor  
M28/4 Right front head restraint motor 12G
M28/4 Right front head restraint motor  
M28/5 Right front backrest angle adjustment motor 12G
M28/5 Right front backrest angle adjustment motor  
M28/8 Right front seat cushion fore/aft motor 12H
M28/8 Right front seat cushion fore/aft motor  
M28/9 Right front seat cushion inclination motor 12H
M28/9 Right front seat cushion inclination motor  
N32/1 Left front seat control unit 7F
N32/2 Right front seat control unit 7F
N69/1 Left front door control unit 7A
N69/2 Right front door control unit 7B
N69/4 Right rear door control unit 9J
N73 EIS [EZS] control unit 3K
N93 Central gateway control unit 2F
S22 Left front seat operation switch group 12A
S23 Right front seat operation switch group 12C
S55/2 Right rear seat operation switch group 14K
U1003 Valid for memory package, electrically adjustable front seats as of model year 2008 1A
Fig 1: Seat Adjustment (ESV) Electrical System - Function Diagram
G10129959Courtesy of MERCEDES-BENZ USA