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Home >> Mercedes Benz >> 2009 >> CL550 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control -- Cl550 -- 216 Chassis >> Wiring Diagrams >> Electrical function schematic for automatic air conditioning, actuation - PE83.40-P-2053-97CAA

Electrical function schematic for automatic air conditioning, actuation - PE83.40-P-2053-97CAA

Code: Designation: Position:
1 Blower motor, request 24D
2 Blower motor, actuation 27C
3 Refrigerant compressor, actuation 21C
4 Hot water circulation pump, request 21H
5 Hot water circulation pump, actuation 19K
6 Idle speed increase, request 12H
6 Idle speed increase, request 16E
7 Electric radiator fan, request 12G
7 Electric radiator fan, request 17E
8 Electric radiator fan, actuation 10G
9 Actuator motors, actuation 26E
10 COMAND display, request 17E
10 COMAND display, request 15D
11 COMAND display, actuation 6B
12 Air conditioning water valve, request 21H
13 Air conditioning water valve, actuation 23K
14 Engine start, request 17E
14 Engine start, request 7H
A32m1 Blower motor 27D
A32n1 Blower regulator 25D
A40/10 SPLITVIEW display 4B
A40/3 COMAND control unit 14B
A40/8 COMAND display 4D
A9 Refrigerant compressor 21B
CAN B Interior CAN 18F
CAN B Interior CAN 21G
CAN E Chassis CAN 12F
CAN E Chassis CAN 10E
CAN F Central CAN 14D
Code 867 SPLITVIEW 3A
LIN B8 Climate control LIN 24F
LIN B8 Climate control LIN 23D
LVDS Low voltage differential signal 9C
M13 Coolant circulation pump 18K
M2/10 Left footwell flap actuator motor 26F
M2/11 Right footwell flap actuator motor 26G
M2/12 Left center air flap actuator motor 26G
M2/13 Right center air flap actuator motor 26G
M2/17 Left side outlet flap actuator motor 26G
M2/18 Right side outlet flap actuator motor 26H
M2/30 Upper left blending air flap actuator motor 26H
M2/31 Lower left blending air flap actuator motor 26H
M2/32 Upper right blending air flap actuator motor 26J
M2/33 Lower right blending air flap actuator motor 26J
M2/5 Fresh air/air recirculation flaps actuator motor 26F
M2/8 Left defroster vent flap actuator motor 26F
M2/9 Right defroster vent flap actuator motor 26F
M4/7 Engine and AC electric suction fan with integrated control 9F
N10/1 Front SAM control unit with fuse and relay module 21J
N22/1 AAC [KLA] control unit 21E
N3/10 ME-SFI [ME] control unit 9J
N3/10 ME-SFI [ME] control unit 12J
N3/10 ME-SFI [ME] control unit 14J
N3/10 ME-SFI [ME] control unit 7J
N93 Central gateway control unit 15E
U1019 Valid for engine 278 6J
U1028 Valid for engine 157 6J
U152 Valid for engine 156 13J
U252 Valid for ECO start/stop function 7G
U252 Valid for ECO start/stop function 17E
U253 Not valid for SPLITVIEW display 3D
U484 Valid for M273 ME 8J
U52 Valid for {{Japan}} 13B
U52 Valid for {{Japan}} 3D
U54 Valid for all except {{Japan}} 13A
U54 Valid for all except {{Japan}} 3D
U779 Valid for engine 275 11J
Y19/2 AC water valve 24K
Fig 1: Automatic Air Conditioning Electrical Function Diagram (1 Of 2)
G07638909Courtesy of MERCEDES-BENZ USA
Fig 2: Automatic Air Conditioning Electrical Function Diagram (2 Of 2)
G07638910Courtesy of MERCEDES-BENZ USA