Automatic a/c circuit for Mercedes-Benz A-class W177 (2018-2023)
Automatic a/c circuit (1 of 3)
AC HOUSING,
AIR QUALITY SENSOR
BLK/RED WIRE
BLU WIRE
BLU/BRN WIRE
BLU/GRN WIRE
BRN WIRE
BRN/VIO WIRE
CENTRAL AIR DISTRIBUTION POSITION DETECTION MICROSWITCH
CENTRAL CONTROL MODULE
COOLANT CIRCULATION PUMP
ELECTRONIC BLOWER MOTOR
EVAPORATOR TEMPERATURE SENSOR
GND 26 27 ILLU (+) GND
GRN WIRE
GRN/BLK WIRE
GRN/BLU WIRE
GRN/VIO WIRE
GRN/WHT WIRE
GRN/YEL WIRE
GRY/BLK WIRE
GRY/GRN WIRE
GRY/RED WIRE
HAZARD SIG
LEFT FOOTWELL VENT AIR OUTLET TEMPERATURE SENSOR
LEFT SIDE AIR VENT AIR OUTLET TEMPERATURE SENSOR
NCA WIRE
RED/BLU WIRE
RED/GRN WIRE
RED/VIO WIRE
REFRIGERANT PRESSURE SENSOR
RIGHT FOOTWELL AIR OUTLET TEMPERATURE SENSOR
RIGHT SIDE AIR VENT AIR OUTLET TEMPERATURE SENSOR
SIG
SIG 3 16 CLUTCH (+)
SIG KLA
STATIONARY HEATER RADIO REMOTE CONTROL RECEIVER
TELEPHONE ANTENNA SPLITTER
VALVE GND
W/O WIRELESS PHONE CHARGING AT FRONT, ANTENNA
WHT/BLU WIRE
YEL/GRN WIRE
Automatic a/c circuit (2 of 3)
BLK/RED WIRE
BLU WIRE
BLU/WHT WIRE
BLU/YEL WIRE
BRN WIRE
COMPUTER DATA LINES SYSTEM
COOLANT TEMPERATURE SENSOR
COOLANT THERMOSTAT HEATING ELEMENT
DRIVETRAIN CONTROL UNIT
ENGINE COMPARTMENT FUSE, RELAY MODULE
ENGINE COMPARTMENT PREFUSE BOX
FAN MOTOR (BEHIND RADIATOR)
FINE PARTICLE SENSOR
FUSE 103
FUSE 118
FUSE 14
FUSE 143
FUSE 166
FUSE 27
FUSE 41
FUSE 53
FUSE 54
GRN WIRE
GRN/VIO WIRE
GRN/WHT WIRE
GRN/YEL WIRE
GRY/BLK WIRE
GRY/YEL WIRE
HOT AT ALL TIMES
HOT W/
HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED
ME-SFI (ME) CONTROL UNIT
NCA WIRE
POWER SUPPLY POTENTIAL DISTRIBUTOR 3
RED WIRE
RED/BLU WIRE
RED/GRN WIRE
RED/VIO WIRE
RELAY ENERGIZED
SIG
SIG GND
VEHICLE INTERIOR FUSE, RELAY MODULE
YEL/GRN WIRE
Automatic a/c circuit (3 of 3)
BLK/RED WIRE
BLU WIRE
BLU/WHT WIRE
BRN WIRE
BRN/GRY WIRE
CENTRAL AIR DISTRIBUTION ACTUATOR MOTOR
CLIMATE CONTROL OPERATING UNIT
FRESH AIR/ RECIRCULATION FLAP ACTUATOR MOTOR
GRN WIRE
GRN/VIO WIRE
GRY/BLK WIRE
LEFT BLEND AIR FLAP ACTUATOR
NCA WIRE
RED WIRE
RED/GRN WIRE
REFRIGERANT COMPRESSOR
REFRIGERANT COMPRESSOR W/ MAGNETIC CLUTCH
RIGHT BLEND AIR FLAP ACTUATOR
RIGHT BLENDING AIR FLAP ACTUATOR
SIG
STATIONARY HEATER FUEL PUMP
STATIONARY HEATER SWITCHOVER VALVE
STATIONARY HEATER UNIT
W/ AIR CONDITIONING
W/ REFRIGERANT COMPRESSOR MAGNETIC CLUTCH
W/O AIR CONDITIONING
W/O REFRIGERANT COMPRESSOR MAGNETIC CLUTCH