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Home >> Mercedes Benz >> 2020 >> S450 Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System - 222 Chassis (4 Of 4) >> Wiring Diagrams >> (Function Schematic For Actuating PTC Heater Booster) >> (Function Schematic For Actuating PTC Heater Booster - PE83.70-P-2502-97C)

(Function Schematic For Actuating PTC Heater Booster - PE83.70-P-2502-97C)

Model 223 with engine 176, 256, 656 

Code: Designation: Position:
1 Operation, signal -
1 Operation, signal -
1 Operation, signal -
1 Operation, signal -
1 Operation, signal -
10 PTC heater booster, actuation -
10 PTC heater booster, actuation -
2 Coolant temperature, signal -
2 Coolant temperature, signal -
2 Coolant temperature, signal -
3 Circuit 15, status -
4 Interior temperature, signal -
5 Air outlet temperature sensor, signal -
6 Crash, signal -
7 Dew point temperature, signal -
8 Solar radiation, signal -
9 Outside temperature, signal -
A26/17 Head unit 1C
A26/17 Head unit 15B
B10/31 Left side air vent air outlet temperature sensor 1F
B10/32 Right side air vent air outlet temperature sensor 1F
B10/35 Left footwell vent air outlet temperature sensor 1G
B10/36 Right footwell vent air outlet temperature sensor 1G
B10/39 Left rear air vent air outlet temperature sensor 1G
B14 Outside temperature sensor 1L
B38/2 Rain/light sensor with additional functions 1J
CAN A1 CAN 1 for telematics 12B
CAN B1 CAN 1 for vehicle interior 20D
CAN B1 CAN 1 for vehicle interior 20E
CAN C CAN for engine 7E
Code 582 Air conditioning in rear 29G
Code B01 48V technology 29B
Code B01 48V technology 29H
Ethernet Ethernet 10C
Ethernet Ethernet 21B
Flex E Chassis FlexRay 13E
LIN Local Interconnect Network 20J
LIN Local Interconnect Network 10J
LIN Local Interconnect Network 27C
LIN Local Interconnect Network 27H
LIN Local Interconnect Network 7B
N10/6 Front signal acquisition and actuation module control unit 23G
N127 Drivetrain control unit 10F
N2/5 Supplemental restraint system control unit 1H
N3/10 ME-SFI [ME] control unit 1E
N3/9 CDI control unit 1E
N33/10 PTC heater booster 29C
N33/13 PTC heater booster 29H
N33/4 PTC heater booster 29D
N58 Rear air conditioning operating unit 1B
N70 Overhead control panel control unit 16F
N72/1 Upper control panel control unit 9B
N73/3 Electronic ignition switch control unit 16D
U1042 Valid except code B01 (48 V technology) 29D
G15074883Courtesy of MERCEDES-BENZ USA
G15074884Courtesy of MERCEDES-BENZ USA