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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 >> Function Schematic For Actuating Front Seat Heating >> Function Schematic For Actuating Front Seat Heating - PE91.30-P-2502-97A

Function Schematic For Actuating Front Seat Heating - PE91.30-P-2502-97A

Model 118, 177, 243, 247 with code 401 (Climatised front seats) 

Model 118, 177, 243, 247 with code 873 (Left and right driver's seat heating) 

Code: Designation: Position:
1 Seat climate control switch group, status 9A
1 Seat climate control switch group, status 9C
2 Seat heater, request 15B
2 Seat heater, request 15H
2 Seat heater, request 9E
2 Seat heater, request 21D
2 Seat heater, request 21G
3 Transmission mode, signal 14H
3 Transmission mode, signal 9H
4 Circuit 15, status 14H
5 Seat belt buckle switch, status 13H
5 Seat belt buckle switch, status 9K
6 Crash, signal 13H
6 Crash, signal 8K
7 Interior temperature, signal 20E
7 Interior temperature, signal 20G
8 Seat heater, actuation 26C
9 Seat heater, status 31H
9 Seat heater, status 26G
9 Seat heater, status 26J
9 Seat heater, status 9H
9 Seat heater, status 9F
A26/17 Head unit 2G
CAN B Interior CAN 13C
CAN B Interior CAN 13H
CAN B Interior CAN 30H
CAN B Interior CAN 19H
CAN B Interior CAN 25J
CAN HMI User interface CAN 7F
CAN HMI User interface CAN 7K
CAN PER Peripherals CAN 7H
Code 241 Memory switch for electrically adjustable front passenger seat, left 18G
Code 241 Memory switch for electrically adjustable front passenger seat, left 21J
Code 241 Memory switch for electrically adjustable front passenger seat, left 24H
Code 242 Electrically adjustable front passenger seat with memory function 18G
Code 242 Electrically adjustable front passenger seat with memory function 21K
Code 242 Electrically adjustable front passenger seat with memory function 24J
Code 275 Electrically adjustable driver seat with memory function 18G
Code 275 Electrically adjustable driver seat with memory function 21G
Code 275 Electrically adjustable driver seat with memory function 24J
Code 545 Connect 5 (NTG6) 1E
Code 547 Connect 20 Entry (NTG6) 1F
Code 548 Connect 20 MID (NTG6) 1F
Code 549 Connect 20 HIGH (NTG6) 1F
LIN B28 Heater LIN 19E
LIN B28 Heater LIN 25H
LIN B5 Driver door LIN 7B
LIN B5 Driver door LIN 36G
LIN B6 Front passenger door LIN 7C
LIN B6 Front passenger door LIN 36J
N10 SAM control unit 16F
N10 SAM control unit 27J
N127 Drivetrain control unit 2H
N166 Head unit/instrument cluster control unit 2E
N2/10 Supplemental restraint system control unit 2K
N25/17 Front seat heater/seat ventilation control unit 22F
N32/1 Driver seat control unit 22H
N32/2 Front passenger seat control unit 22K
N69/1 Driver door control unit 10B
N69/1 Driver door control unit 33G
N69/2 Front passenger door control unit 10D
N69/2 Front passenger door control unit 33J
N73 Electronic ignition switch control unit 10J
R13/1 Left front seat cushion heater pad 27C
R13/2 Left front seat backrest heater pad 27C
R13/3 Right front seat cushion heater pad 27D
R13/4 Right front seat backrest heater pad 27D
R24 Adjustable seat cushion length heater pad, left front seat 27E
R24/1 Adjustable seat cushion length heater pad, right front seat 27E
S51/1 Driver seat climate control switch group 2B
S51/1 Driver seat climate control switch group 38G
S51/2 Front passenger seat climate control switch group 2D
S51/2 Front passenger seat climate control switch group 38J
U351 Valid without code (275) Electrically adjustable driver's seat with memory function 18D
U351 Valid without code (275) Electrically adjustable driver's seat with memory function 24G
G15075123Courtesy of MERCEDES-BENZ USA
G15075124Courtesy of MERCEDES-BENZ USA
G15075125Courtesy of MERCEDES-BENZ USA