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Home >> Mercedes Benz >> 2021 >> Metris Van Cargo >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System (3 Of 3) -- 447 Chassis >> Wiring Diagrams >> Electrical Function Schematic For Climate Control Input Signals >> Electrical Function Schematic For Climate Control Input Signals - PE83.40-S-2056-97TRD

Electrical Function Schematic For Climate Control Input Signals - PE83.40-S-2056-97TRD

Model 447.6/7 

with code HH9 (Air conditioner, automatic heater control) 

except code HH4 (THERMOTRONIC automatic climate control) 

except code XM0 (Facelift) 

Code: Designation: Position:
1 Circuit 15, status 8C
1 Circuit 15, status 15E
10 Refrigerant pressure sensor, signal 6E
11 Sun sensor, signal 10C
11 Sun sensor, signal 19D
11 Sun sensor, signal 22C
12 Vehicle speed, signal 16J
12 Vehicle speed, signal 15H
12 Vehicle speed, signal 8D
13 Engine speed, signal 15G
13 Engine speed, signal 9D
13 Engine speed, signal 19H
14 Door rotary tumbler switch, status 9D
14 Door rotary tumbler switch, status 15C
14 Door rotary tumbler switch, status 18C
15 Evaporator drying, request 12H
15 Evaporator drying, request 15G
15 Evaporator drying, request 10D
16 Crash, signal 13J
16 Crash, signal 15H
16 Crash, signal 10D
17 Dew point sensor, signal 23C
18 Solar radiation, signal 10D
18 Solar radiation, signal 19D
19 Adjust temperature, status 4F
2 Engine running, signal 12H
2 Engine running, signal 15G
2 Engine running, signal 9C
2 Engine running, signal 18H
20 Button "REAR", status 5F
21 Air distribution button, status 6C
21 Air distribution button, status 5B
21 Air distribution button, status 4B
22 Air recirculation mode button, status 3B
23 Adjust air flow, status 3C
24 A/C button, status 2D
25 Rear window heater button, status 3E
3 Outside temperature sensor, signal 21B
4 Outside temperature, signal 9C
4 Outside temperature, signal 19C
5 Vehicle interior temperature, signal 7C
5 Vehicle interior temperature, signal 8B
6 Dew point temperature, signal 10C
6 Dew point temperature, signal 19C
7 Coolant temperature sensor, signal 22H
8 Coolant temperature, signal 15G
8 Coolant temperature, signal 10C
8 Coolant temperature, signal 19H
9 Evaporator temperature sensor, signal 7E
A1/1 Instrument cluster (KI) control unit 10G
B10/5 Evaporator temperature sensor 7F
B11/17 Coolant temperature sensor 23G
B12 Refrigerant pressure sensor 6G
B14 Outside temperature sensor 21A
B38/2 Humidity sensor/light sensor/rain sensor 25C
CAN B Interior CAN 16D
CAN B Interior CAN 10D
CAN E Chassis CAN 13H
CAN E Chassis CAN 17H
LIN B13 Roof LIN 24D
M9 Blower with interior air temperature sensor 8B
M9b1 Interior air temperature sensor 10B
N10/1 Signal acquisition and actuation module (SAM) control unit 21C
N2/18 Supplemental restraint system (SRS) control unit 14J
N3/33 CDI control unit 21F
N3/36 CDI control unit 21J
N30/4 Electronic Stability Program (ESP) control unit 16K
N69/3 Left front door control unit 15A
N69/4 Right front door control unit 18A
N73 Electronic ignition lock (EZS) control unit 15E
S98 Air conditioning control and operating unit (front & rear KLA) 4C
S98s11 "A/C" button 1E
S98s14 Rear window heater button 2F
S98s15 Temperature selector wheel 3G
S98s16 Windshield air distribution button 6B
S98s17 Center air distribution button 5A
S98s18 Footwell air distribution button 4A
S98s19 Air flow selector wheel 1C
S98s7 Air recirculation mode button 2B
S98s9 Button "REAR" 5G
U1186 Valid for engine 651.9 20F
U1187 Valid for engine 622.9 20J
G16510548Courtesy of MERCEDES-BENZ USA
G16510549Courtesy of MERCEDES-BENZ USA
G16510550Courtesy of MERCEDES-BENZ USA
G16510551Courtesy of MERCEDES-BENZ USA