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Home >> Mercedes Benz >> 2012 >> C250 Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control - 204 C Class - 1 Of 2 >> Wiring Diagrams >> Wiring diagram for automatic air conditioning (AAC) control unit >> Wiring diagram for automatic air conditioning (AAC) control unit - PE83.40-P-2101-97FAB

Wiring diagram for automatic air conditioning (AAC) control unit - PE83.40-P-2101-97FAB

Code: Designation: Position:
A0 Color code key 80A
A9 Refrigerant compressor 31L
A9 Refrigerant compressor 36L
A9/7 Refrigerant compressor with magnetic clutch 38L
B10/38 Rear footwell air outlet temperature sensor 79L
B10/4 Interior temperature sensor 43L
B12 Refrigerant pressure sensor 40L
B31 Emissions sensor 41L
B82 Interior humidity/temperature sensor 27L
CAN B Interior CAN 46K
E10/1 Left center air outlet symbol illumination 52L
E10/1x1 Center vent symbol illumination electrical connector 52J
E10/2 Left front side air outlet symbol illumination 55L
E10/3 Right front side air outlet symbol illumination 56L
E10/4 Right center air outlet symbol illumination 53L
E10/5 Rear air outlet symbol illumination 77L
E10/5x1 Rear vent symbol illumination electrical connector 77J
E43/7 Driver-side instrument panel ambiance illumination 50L
E43/7x1 Driver-side instrument panel ambiance illumination electrical connector 50J
E43/8 Passenger-side instrument panel ambiance illumination 49L
E43/8x1 Passenger-side instrument panel ambiance illumination electrical connector 49J
F34 Interior fuse box 59L
F34f119 Fuse 119 57K
M2/1 Rear blower motor 69L
M2/1x1 Rear blower motor electrical connector 67J
N10/1 Front SAM control unit with fuse and relay module 3L
N10/1 Front SAM control unit with fuse and relay module 11L
N10/1 Front SAM control unit with fuse and relay module 19L
N10/1f12 Fuse 12 1K
N10/2 Rear SAM control unit with fuse and relay module 64L
N10/2f43 Fuse 43 63L
N22/4 Rear automatic air conditioning operating unit 73L
N22/7 Automatic air conditioning control and operating unit 4A
N22/7 Automatic air conditioning control and operating unit 12A
N22/7 Automatic air conditioning control and operating unit 28A
N22/7 Automatic air conditioning control and operating unit 20A
N22/7 Automatic air conditioning control and operating unit 36A
N22/7 Automatic air conditioning control and operating unit 44A
N22/7 Automatic air conditioning control and operating unit 52A
N22/7 Automatic air conditioning control and operating unit 61A
N22/7 Automatic air conditioning control and operating unit 68A
N22/7 Automatic air conditioning control and operating unit 76A
N22/7s1 Rear window heater button 3A
N22/7s2 Air recirculation mode button 9A
N70/3 Overhead control panel electronics 23L
N70/3b1 Interior temperature sensor with integrated fan 24L
U1018 Valid for gasoline engine 276 35E
U111 Valid for overhead control panel without CAN 22G
U12 Valid for left-hand drive vehicles 10E
U12 Valid for left-hand drive vehicles 3C
U12 Valid for left-hand drive vehicles 61H
U12 Valid for left-hand drive vehicles 44F
U13 Valid for right-hand drive vehicles 10E
U13 Valid for right-hand drive vehicles 3D
U13 Valid for right-hand drive vehicles 44F
U13 Valid for right-hand drive vehicles 61H
U152 Valid for gasoline engine 156 29E
U157 Valid for combustion engine 272 DE 33E
U169 Valid for gasoline engine 271 DE 33F
U169 Valid for gasoline engine 271 DE 35F
U328 Valid for air outlet symbol illumination 51F
U328 Valid for air outlet symbol illumination 74D
U329 Valid without air outlet symbol illumination 73D
U362 Valid for gasoline engine 274 35E
U486 Valid for refrigerant compressor 35H
U487 Valid for refrigerant compressor with magnetic clutch 37H
U57 Valid for model 204.2 66H
U58 Valid for model 204.0 66H
U59 Valid for model 204.9 66H
U59 Valid for model 204.9 51H
U59 Valid for model 204.9 48F
U617 Interior humidity/temperature sensor 16H
U617 Interior humidity/temperature sensor 17H
U617 Interior humidity/temperature sensor 18H
U617 Interior humidity/temperature sensor 26E
U739 Valid for gasoline engine 271 continuous fuel injection system (electronic) 33E
U74 Valid for diesel engines 10F
U74 Valid for diesel engines 10E
U740 Valid for diesel engine 646 32E
U75 Valid for gasoline engines 10F
U819 Valid for gasoline engine 272 33E
U880 Valid for diesel engine 642 28E
U884 Valid for ambiance illumination 48F
U948 Valid for diesel engine 651 33F
U948 Valid for diesel engine 651 35E
W15/5 Left front footwell ground point 4E
W15/5 Left front footwell ground point 61L
W15/5 Left front footwell ground point 45H
W15/7 Right front footwell ground point 4E
W15/7 Right front footwell ground point 61L
W15/7 Right front footwell ground point 45H
W16/3 Left major assembly compartment ground point 11G
W16/3 Left major assembly compartment ground point 11G
W16/5 Left major assembly compartment electronics ground point 11G
W18 Left front seat crossmember ground point 66L
W18/3 Left front seat crossmember ground point 2 66L
X15/12 Vehicle interior/cockpit temperature sensor electrical connector 42H
X18/35 Instrument panel and vehicle floor electrical connector 69G
X18/35 Instrument panel and vehicle floor electrical connector 76G
X18/35 Instrument panel and vehicle floor electrical connector 67E
X226 Electrical connector/fogging sensor 26H
X26 Interior and engine wiring harness electrical connector 28H
X26 Interior and engine wiring harness electrical connector 30H
X26 Interior and engine wiring harness electrical connector 32H
X26 Interior and engine wiring harness electrical connector 34H
X26 Interior and engine wiring harness electrical connector 37H
X30/32 Left vehicle floor interior CAN voltage distributor electrical connector 46L
Z50/1 Circuit 58d instrument panel connector sleeve 5G
Z50/1 Circuit 58d instrument panel connector sleeve 50G
Z50/1 Circuit 58d instrument panel connector sleeve 55E
Z50/3 Circuit 31 instrument panel connector sleeve 45E
Z50/3 Circuit 31 instrument panel connector sleeve 52E
Z50/38 Connector sleeve/air conditioning circuit 31 7E
Z50/38 Connector sleeve/air conditioning circuit 31 16E
Z6/85 Sensor ground connector sleeve 2E
Z6/85 Sensor ground connector sleeve 42E
Z6/85 Sensor ground connector sleeve 78E
Z68/11 Rear air conditioning LIN bus ground line connector sleeve 71L
Z68/11 Rear air conditioning LIN bus ground line connector sleeve 75L
Z68/3 Vehicle interior LIN bus ground line connector sleeve 7G
Z68/3 Vehicle interior LIN bus ground line connector sleeve 17E
Z68/3 Vehicle interior LIN bus ground line connector sleeve 71E
Z7/21 Air conditioning circuit 30 connector sleeve 7G
Z7/21 Air conditioning circuit 30 connector sleeve 15E
Z7/21 Air conditioning circuit 30 connector sleeve 69E
Z81/11 Air conditioning circuit 58d connector sleeve 75G
Fig 1: Automatic Air Conditioning Control Unit - Wiring Diagram (1 Of 5)
G10080965Courtesy of MERCEDES-BENZ USA
Fig 2: Automatic Air Conditioning Control Unit - Wiring Diagram (2 Of 5)
G10080966Courtesy of MERCEDES-BENZ USA
Fig 3: Automatic Air Conditioning Control Unit - Wiring Diagram (3 Of 5)
G10080967Courtesy of MERCEDES-BENZ USA
Fig 4: Automatic Air Conditioning Control Unit - Wiring Diagram (4 Of 5)
G10080968Courtesy of MERCEDES-BENZ USA
Fig 5: Automatic Air Conditioning Control Unit - Wiring Diagram (5 Of 5)
G10080969Courtesy of MERCEDES-BENZ USA