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Home >> Mercedes Benz >> 2021 >> E450 Base, 2D Convertible >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System - 238 Chassis (2 Of 2) >> Wiring Diagrams >> Wiring Diagram Of Automatic Air Conditioning (AAC) Control Unit >> Wiring Diagram Of Automatic Air Conditioning (AAC) Control Unit - PE83.40-P-2101-97DCA

Wiring Diagram Of Automatic Air Conditioning (AAC) Control Unit - PE83.40-P-2101-97DCA

Model 238 up to model year 2021 Control unit N22/1 

Code: Designation: Position:
AO Use of wiring diagrams 189L
A32 AC housing 107L
A32m1 Electronic blower motor 105L
A32n1 Blower regulator 108L
A6 Stationary heater unit 91L
A6/1 Stationary heater radio remote control receiver 50L
A9 Refrigerant compressor 61L
A9/5 Electric refrigerant compressor 96L
A9x1 Refrigerant compressor electrical connector 60K
A9y1 Refrigerant compressor regulation valve 61L
B10/31 Left side air outlet temperature sensor 67L
B10/32 Right side air outlet temperature sensor 69L
B10/35 Left footwell air outlet temperature sensor 180L
B10/36 Right footwell air outlet temperature sensor 176L
B10/38 Rear footwell vent air outlet temperature sensor 183L
B10/6 Evaporator temperature sensor 178L
B12 Refrigerant pressure sensor 65L
B31 Air quality sensor 124L
CAN B Interior CAN 55K
Code 228 Stationary heater 89H
Code 228 Stationary heater 48F
Code 580 Air conditioning 18K
Code 580 Air conditioning 21K
Code 580 Air conditioning 152D
Code 581 THERMOTRONIC automatic air conditioning 13K
Code 581 THERMOTRONIC automatic air conditioning 72G
Code 581 THERMOTRONIC automatic air conditioning 44F
Code 581 THERMOTRONIC automatic air conditioning 122H
Code 581 THERMOTRONIC automatic air conditioning 127D
Code 581 THERMOTRONIC automatic air conditioning 181D
Code 581 THERMOTRONIC automatic air conditioning 172F
Code 830 Additional parts for China vehicles 122H
Code B01 48V technology 93H
Code L LEFT-HAND DRIVE 3E
Code L LEFT-HAND DRIVE 106G
Code M264 SPARK-IGNITION ENGINE M264 58G
Code M274 SPARK-IGNITION ENGINE M274 58F
Code M276 SPARK-IGNITION ENGINE M276 58F
Code M642 DIESEL ENGINE 0M642 58F
Code M642 DIESEL ENGINE 0M642 163F
Code M654 DIESEL ENGINE 0M654 163F
Code M654 DIESEL ENGINE 0M654 58G
Code M656 6-CYLINDER INLINE DIESEL ENGINE 0M656 58G
Code P21 AIR-BALANCE package 98H
Code R RIGHT-HAND DRIVE 3F
Code R RIGHT-HAND DRIVE 106G
F1/3 Passenger-side A-pillar fuse box 42L
F1/3MF3 Multiple fuse 3 40K
F32/4 Vehicle interior pre-fuse box 111L
F32/4 Vehicle interior pre-fuse box 169L
F32/4f3 Fuse 3 110K
F32/4f5 Fuse 5 168K
K40/5 Rear fuse and relay module 79L
K40/5f461 Fuse 461 78L
K40/6 Driver-side fuse and relay module 33L
K40/6 Driver-side fuse and relay module 3L
K40/6f209 Fuse 209 32L
K40/6f210 Fuse 210 2L
M13/5 Coolant circulation pump 126L
M16/33 Left B-pillar air distribution actuator motor 130L
M16/34 Right B-pillar air distribution actuator motor 134L
M2/10 Rear blend air flap actuator motor 146L
M2/11 Left footwell vent/center air vent/side air vent and rear vent flap actuator motor 148L
M2/12 Right footwell vent/center air vent and side air vent flap actuator motor 150L
M2/13 Fresh air/ram air/air recirculation flap actuator motor 137L
M2/13 Fresh air/ram air/air recirculation flap actuator motor 154L
M2/14 Defroster/footwell/center air vent flap actuator motor 140L
M2/14 Defroster/footwell/center air vent flap actuator motor 157L
M2/23 Left booster blower 74L
M2/23x1 Left booster blower electrical connector 73K
M2/24 Right booster blower 84L
M2/24x1 Right booster blower electrical connector 83K
M2/8 Left blending air flap actuator 142L
M2/8 Left blending air flap actuator 159L
M2/9 Right blending air flap actuator 144L
M2/9 Right blending air flap actuator 161L
N18/9 Driver side air vent ionizer 100L
N22/1 Climate control control unit 4A
N22/1 Climate control control unit 12A
N22/1 Climate control control unit 20A
N22/1 Climate control control unit 28A
N22/1 Climate control control unit 37A
N22/1 Climate control control unit 45A
N22/1 Climate control control unit 53A
N22/1 Climate control control unit 60A
N22/1 Climate control control unit 75A
N22/1 Climate control control unit 68A
N22/1 Climate control control unit 83A
N22/1 Climate control control unit 90A
N22/1 Climate control control unit 100A
N22/1 Climate control control unit 109A
N22/1 Climate control control unit 119A
N22/1 Climate control control unit 129A
N22/1 Climate control control unit 138A
N22/1 Climate control control unit 146A
N22/1 Climate control control unit 154A
N22/1 Climate control control unit 162A
N22/1 Climate control control unit 178A
N22/1 Climate control control unit 170A
N22/4 Rear air conditioning operating unit 46L
N58/1 Climate control operating unit 16L
N58/1s10 Right temperature selection button 15L
N58/1s12 Climate control menu button 17L
N58/1s14 Air distribution button, left 19L
N58/1s15 "SYNC" button 20L
N58/1s16 "A/C" button 21L
N58/1s17 Air distribution button, right 23L
N58/1s18 Button "A/C" and residual heat on/off 24L
N58/1s19 Blower button, front 26L
N58/1s2 Left temperature selection button 8L
N58/1s20 AUTO button, front 27L
N58/1s21 Defrosting button 28L
N58/1s22 Air distribution button 30L
N58/1s25 "OFF" and climate control menu button 7L
N58/1s4 Air recirculation mode button 10L
N58/1s6 Climate control menu and residual heat on/off button 11L
N58/1s7 Rear window heater button 13L
N58/1s8 Stationary heater button 14L
N59 Perfume atomizer generator 103L
N59x1 Perfume atomizer generator electrical connector 101K
N72/1 Upper control panel control unit 37L
R22/3 PTC heater booster 165L
S24/1 Central air distribution position detection microswitch 174L
W18 Left front seat crossmember ground point 45H
W18 Left front seat crossmember ground point 73G
W18 Left front seat crossmember ground point 84G
W2 Right front ground point (at lamp unit) 127G
W34 Left footwell ground point 4F
W34 Left footwell ground point 106G
W34/3 Right footwell ground point 7F
W34/3 Right footwell ground point 4E
W34/3 Right footwell ground point 106G
X18/28 Left cockpit/engine compartment electrical connector 122G
X18/28 Left cockpit/engine compartment electrical connector 95G
X18/53 Driver-side cockpit/frame floor assembly electrical connector 87G
X18/53 Driver-side cockpit/frame floor assembly electrical connector 60E
X18/53 Driver-side cockpit/frame floor assembly electrical connector 70F
X18/53 Driver-side cockpit/frame floor assembly electrical connector 128G
X18/53 Driver-side cockpit/frame floor assembly electrical connector 182H
X18/53 Driver-side cockpit/frame floor assembly electrical connector 129E
X18/54 Passenger-side cockpit/frame floor assembly electrical connector 53G
X18/54 Passenger-side cockpit/frame floor assembly electrical connector 64H
X18/55 Center console rear compartment temperature sensor electrical connector 182F
X26 Engine wiring harness/engine compartment electrical connector 60G
X30/33 Right interior CAN (CAN B) potential distributor electrical connector 55L
Z68/26z1 Climate control LIN 1 connector sleeve 124E
Z68/3z1 A/C control LIN ground connection connector sleeve, vehicle interior 71L
Z68/3z1 A/C control LIN ground connection connector sleeve, vehicle interior 131G
Z68/43z1 A/C control LIN 2 power supply connector sleeve, cockpit 120L
Z68/45z1 A/C LIN 2 data (COC) 116L
Z68/46z1 A/C control LIN 3 data line connector sleeve, cockpit 9F
Z68/46z1 A/C control LIN 3 data line connector sleeve, cockpit 53E
Z68/47z1 A/C control LIN ground connection connector sleeve, cockpit 118L
Z68/48z1 A/C control LIN 2 power supply connector sleeve, vehicle interior 76L
Z68/49z1 A/C control LIN 3 data line connector sleeve, vehicle interior 47E
Z68/4z1 A/C control LIN 1 power supply connector sleeve, vehicle interior 130G
Z68/9z1 A/C control LIN 2 data line connector sleeve, vehicle interior 88L
Z7/46z1 Tml. 30 connector sleeve 82L
Z7/58z1 Tml. 30 connector sleeve 30F
Z7/72z1 Sensor ground connector sleeve 68E
G15471139Courtesy of MERCEDES-BENZ USA
G15471140Courtesy of MERCEDES-BENZ USA
G15471141Courtesy of MERCEDES-BENZ USA
G15471142Courtesy of MERCEDES-BENZ USA
G15471143Courtesy of MERCEDES-BENZ USA
G15471144Courtesy of MERCEDES-BENZ USA
G15471145Courtesy of MERCEDES-BENZ USA
G15471146Courtesy of MERCEDES-BENZ USA
G15471147Courtesy of MERCEDES-BENZ USA
G15471148Courtesy of MERCEDES-BENZ USA
G15471149Courtesy of MERCEDES-BENZ USA