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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 >> Electrical function schematic for lumbar support adjustment >> Electrical function schematic for lumbar support adjustment - PE91.29-U-2055-97SAA

Electrical function schematic for lumbar support adjustment - PE91.29-U-2055-97SAA

Code: Designation: Position:
1 Circuit 15R/circuit 15, status ON 2D
1 Circuit 15R/circuit 15, status ON 5G
2 FDS submenu display, status 12F
3 Lumbar support pressure adjustment, request 11H
3 Lumbar support pressure adjustment, request 9J
3 Lumbar support pressure adjustment, request 4K
3 Lumbar support pressure adjustment, request 8H
4 Pressure sensor, signal  
5 Adjust or store memory position, request 11B
5 Adjust or store memory position, request 7E
6 Lumbar support pump, actuation 4B
A40/10 SPLITVIEW display 14F
A40/3 COMAND control unit 9F
A40/8 COMAND display 14F
A40/9 Front central operating unit 13J
A8/1 Transmitter key 3F
CAN A Telematics CAN 11K
CAN B Interior CAN 4F
CAN B Interior CAN 2E
CAN B Interior CAN 7J
CAN B Interior CAN 7C
CAN F Central CAN 9H
Code 867 SPLITVIEW 12F
LIN B1 Front door LIN 11B
M25/1 Lumbar pump 5B
N10/2 Rear SAM control unit with fuse and relay module 2A
N32/1 Left front seat control unit 7E
N32/2 Right front seat control unit 6F
N32/23 Driver lumbar support regulator control unit 2J
N32/24 Front passenger lumbar support regulator control unit 2J
N69/1 Left front door control unit 9A
N69/2 Right front door control unit 9A
N73 EIS [EZS] control unit 2F
N93 Central gateway control unit 9J
S22 Left front seat operation switch group 13B
S23 Right front seat operation switch group 13B
U1003 Valid for memory package, electrically adjustable front seats as of model year 2008 6A
U19 Valid for standard equipment 12E
Fig 1: Lumbar Support Adjustment - Electrical Function Schematic
G10129960Courtesy of MERCEDES-BENZ USA