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Home >> Mercedes Benz >> 2021 >> E350 Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control - 213 Chassis 3 Of 3 >> Wiring Diagrams >> Electrical Function Schematic For Climate Control Input Signals >> Electrical Function Schematic For Climate Control Input Signals - PE83.40-P-2056-97DBB
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Electrical Function Schematic For Climate Control Input Signals - PE83.40-P-2056-97DBB

Model 213 up to model year 2021 with code 1U6 (R744 refrigerant) 

Code: Designation: Position:
1 Circuit 15, status 25E
10 Refrigerant pressure, signal 21C
11 Refrigerant temperature, signal 21C
12 Sun sensor, signal 8D
12 Sun sensor, signal 23F
13 CO2 sensor, signal 30B
14 Air quality sensor, signal 30
15 Vehicle speed, signal 25F
15 Vehicle speed, signal 14K
16 Engine speed, signal 11K
16 Engine speed, signal 5K
16 Engine speed, signal 25E
17 Door rotary tumbler switch, status 28E
18 Side window position, signal 28F
19 Sliding roof position, signal 29E
2 Engine running, signal 11K
2 Engine running, signal 6K
2 Engine running, signal 25E
20 Operation, signal 13H
20 Operation, signal 25F
20 Operation, signal 12H
20 Operation, signal 18G
20 Operation, signal 30C
20 Operation, signal 30D
21 Audio/COMMAND display, actuation 24H
22 High-speed video link video signal data transfer, signal 24H
23 Voice input, signal 25F
23 Voice input, signal 13H
24 Central air distribution position detection microswitch, status 21D
25 GPS, signal 13H
25 GPS, signal 25F
26 Evaporator drying, request 15J
26 Evaporator drying, request 24E
27 Crash, signal 11J
27 Crash, signal 24F
3 Outside temperature sensor, signal 10C
4 Outside temperature, signal 22E
5 Interior temperature, signal 26E
6 Air outlet temperature sensor, signal 21A
7 Dew point temperature, signal 9D
7 Dew point temperature, signal 23E
8 Coolant temperature, signal 11K
8 Coolant temperature, signal 6K
8 Coolant temperature, signal 25F
9 Evaporator temperature sensor, signal 21B
A1 Instrument cluster 18K
A26/17 Head unit 19G
A40/8 Audio/COMMAND display 25H
A98/1 Sliding roof control module 35J
A98n1 Panoramic sliding roof control unit 38J
B10/31 Left side air outlet temperature sensor 15B
B10/32 Right side air outlet temperature sensor 15B
B10/35 Left footwell air outlet temperature sensor 15B
B10/36 Right footwell air outlet temperature sensor 15C
B10/38 Rear footwell vent air outlet temperature sensor 15A
B10/6 Evaporator temperature sensor 19B
B12/4 CO2 pressure/temperature sensor downstream of gas cooler 18C
B12/5 CO2 pressure/temperature sensor upstream of gas cooler 19C
B14 Outside temperature sensor 9A
B31 Air quality sensor 37C
B38/2 Rain/light sensor with additional functions 6C
B38/2b3 Humidity/temperature sensor 6C
B38/2b5 Sun sensor 6C
B98 CO2 sensor 33A
CAN A Telematics CAN 22J
CAN B Interior CAN 19F
CAN B Interior CAN 16G
CAN B Interior CAN 27G
CAN B Interior CAN 36F
CAN B Interior CAN 30G
CAN B Interior CAN 31F
CAN C1 Drivetrain CAN 5K
CAN HMI User interface CAN 16H
CAN HMI User interface CAN 10J
CAN HMI User interface CAN 15J
Code 413 Panoramic sliding sunroof 37H
Code 414 Sliding roof 35H
Code 531 COMMAND APS 12G
Code 531 COMMAND APS 23F
Code 581 THERMOTRONIC automatic air conditioning 33C
Code 581 THERMOTRONIC automatic air conditioning 15A
Code 581 THERMOTRONIC automatic air conditioning 36B
Flex E Chassis FlexRay 10K
HSVL High-speed video I ink 22H
LIN B16 Rain and light sensor LIN 7D
LIN B8-1 Climate control LIN 1 31C
LIN B8-3 AC operation LIN 31E
LIN B8-3 AC operation LIN 31D
LIN B8-4 Climate control LIN 3 31B
N10/6 Front SAM control unit 10C
N127 Drivetrain control unit 7K
N2/10 Supplemental restraint system control unit 9F
N22/1 Climate control, control unit 25B
N22/4 Rear air conditioning operating unit 33D
N3/10 ME-SFI [ME] control unit 5F
N3/9 CDI control unit 2F
N58/1 Climate control operating unit 37D
N58/1s10 Right temperature selection button 39C
N58/1s14 Air distribution button, left 39D
N58/1s15 "SYNC" button 39D
N58/1s16 "A/C" button 39D
N58/1s17 Air distribution button, right 39D
N58/1s18 Button "A/C" and residual heat on/off 39E
N58/1s19 Blower button, front 39E
N58/1s2 Left temperature selection button 39C
N58/1s20 AUTO button, front 39E
N58/1s21 Defrosting button 39F
N58/1s22 Air distribution button 39F
N58/1s25 "OFF" and climate control menu button 39F
N58/1s4 Air recirculation mode button 39C
N58/1s6 Climate control menu and residual heat on/off button 39C
N69/1 Left front door control unit 30H
N69/2 Right front door control unit 30J
N69/3 Left rear door control unit 33H
N69/4 Right rear door control unit 33J
N70 Overhead control panel control unit 28H
N70b1 Interior temperature sensor with integrated fan 29H
N73 Electronic ignition switch control unit 13J
S24/1 Central air distribution position detection microswitch 18E
U1581 Valid without code (581) THERMOTRONIC automatic air conditioning 17D
U74 Valid for diesel engines 1F
U75 Valid for gasoline engines 4F
G13775564Courtesy of MERCEDES-BENZ USA
G13775565Courtesy of MERCEDES-BENZ USA
G13775566Courtesy of MERCEDES-BENZ USA