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Home >> Mercedes Benz >> 2021 >> A220 Base >> Repair and Diagnosis >> Restraints >> Seat Belts >> Seats, Bunks, Restraint Systems - 177 Chassis (2 Of 2) >> Wiring Diagrams >> Wiring Diagram For Seat Heater And Seat Ventilation Control Unit >> Wiring Diagram For Seat Heater And Seat Ventilation Control Unit - PE91.30-P-2102-97IBA

Wiring Diagram For Seat Heater And Seat Ventilation Control Unit - PE91.30-P-2102-97IBA

Model 177 

with code 401 (Climatised front seats) 

except code 275 (Driver's seat, electrically adjustable with memory function) 

Control unit N25/17 

Model 177 

with code 873 (Left and right driver's seat heating) 

except code 275 (Driver's seat, electrically adjustable with memory function) 

Control unit N25/17 

Code: Designation: Position:
A0 Use of wiring diagrams 64L
Code 401 Seat climate control for driver and front passenger 20A
Code 401 Seat climate control for driver and front passenger 27A
Code L LEFT-HAND DRIVE 13F
Code L LEFT-HAND DRIVE 20H
Code L LEFT-HAND DRIVE 27H
Code L LEFT-HAND DRIVE 6F
Code L LEFT-HAND DRIVE 46J
Code L LEFT-HAND DRIVE 33E
Code R RIGHT-HAND DRIVE 6F
Code R RIGHT-HAND DRIVE 13F
Code R RIGHT-HAND DRIVE 20H
Code R RIGHT-HAND DRIVE 27H
Code R RIGHT-HAND DRIVE 7A
Code R RIGHT-HAND DRIVE 46G
Code R RIGHT-HAND DRIVE 33E
F152/4 Vehicle interior fuse and relay module 6L
F152/4f138 Fuse 138 5L
M18/10 Left front backrest seat ventilation motor 24L
M18/10 Left front backrest seat ventilation motor 31L
M18/10x1 Left front backrest seat ventilation motor electrical connector 24K
M18/10x1 Left front backrest seat ventilation motor electrical connector 31J
M18/11 Right front seat cushion seat ventilation motor 22L
M18/11 Right front seat cushion seat ventilation motor 29L
M18/11x1 Right front seat cushion seat ventilation motor electrical connector 21J
M18/11x1 Right front seat cushion seat ventilation motor electrical connector 29K
M18/12 Right front backrest seat ventilation motor 24L
M18/12 Right front backrest seat ventilation motor 31L
M18/12x1 Right front backrest seat ventilation motor electrical connector 24J
M18/12x1 Right front backrest seat ventilation motor electrical connector 31K
M18/9 Left front seat cushion seat ventilation motor 22L
M18/9 Left front seat cushion seat ventilation motor 29L
M18/9x1 Left front seat cushion seat ventilation motor electrical connector 21K
M18/9x1 Left front seat cushion seat ventilation motor electrical connector 29J
N10 Central control module 11L
N25/17 Front seat heater/seat ventilation control unit 5A
N25/17 Front seat heater/seat ventilation control unit 13A
N25/17 Front seat heater/seat ventilation control unit 19A
N25/17 Front seat heater/seat ventilation control unit 29A
N25/17 Front seat heater/seat ventilation control unit 43A
N25/17 Front seat heater/seat ventilation control unit 52A
R13/1 Left front seat cushion heater pad 17L
R13/1 Left front seat cushion heater pad 37L
R13/1x1 Left front seat surface heater pad electrical connector 16H
R13/1x1 Left front seat surface heater pad electrical connector 37G
R13/2 Left front seat backrest heater pad 14L
R13/2 Left front seat backrest heater pad 35L
R13/2x1 Left front seat backrest heater pad electrical connector 14K
R13/2x1 Left front seat backrest heater pad electrical connector 34J
R13/3 Right front seat cushion heater pad 17L
R13/3 Right front seat cushion heater pad 37L
R13/3x1 Right front seat surface heater pad electrical connector 16H
R13/3x1 Right front seat surface heater pad electrical connector 37G
R13/4 Right front seat backrest heater pad 14L
R13/4 Right front seat backrest heater pad 35L
R13/4x1 Right front seat backrest heater pad electrical connector 14J
R13/4x1 Right front seat backrest heater pad electrical connector 34K
R24 Adjustable seat cushion length heater pad, left front seat 20L
R24 Adjustable seat cushion length heater pad, left front seat 39L
R24/1 Adjustable seat cushion length heater pad, right front seat 20L
R24/1 Adjustable seat cushion length heater pad, right front seat 39L
R24/1x1 Adjustable seat cushion length heater pad electrical connector, right front seat 19J
R24/1x1 Adjustable seat cushion length heater pad electrical connector, right front seat 38K
R24x1 Adjustable seat cushion length heater pad electrical connector, left front seat 19K
R24x1 Adjustable seat cushion length heater pad electrical connector, left front seat 38J
W18 Left front seat crossmember ground point 7F
W19 Right front seat crossmember ground point 7F
W19 Right front seat crossmember ground point 8F
X28/30x1 Interior wiring harness/front passenger seat electrical connector 19E
Z61/25z1 Voltage supply connector sleeve 34D
Z61/26z1 Voltage supply connector sleeve 17F
Z61/27z1 Ground connection connector sleeve 35E
Z61/28z1 Ground connection connector sleeve 16E
Z61/29z1 DC motor connector sleeve (potential according to rotation direction) 30F
Z61/30z1 DC motor connector sleeve (potential according to rotation direction) 22G
Z61/31z1 DC motor connector sleeve (potential according to rotation direction) 29F
Z61/32z1 DC motor connector sleeve (potential according to rotation direction) 21G
G15490917Courtesy of MERCEDES-BENZ USA
G15490918Courtesy of MERCEDES-BENZ USA
G15490919Courtesy of MERCEDES-BENZ USA
G15490920Courtesy of MERCEDES-BENZ USA