Mercedes-Benz A-class W177 (2018-2023) central control module Wiring diagrams

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

BLU/WHT WIRE BRN WIRE BRN/RED WIRE BSM BSM GND CAN B H CAN B L CAN B L STERN CAN PER H CAN PER L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM DRIVER DOOR CONTROL UNIT DRIVER SIDE OUTSIDE MIRROR FRONT PASSENGER DOOR CONTROL UNIT FUSE 156 FUSE 158 FUSE 163 GRN WIRE GRN/WHT WIRE GRY/WHT WIRE HOT W/ BATTERY DISCONNECT SWITCH REALY ENERGIZED HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT OUTER REAR INTEGRATED RADAR SENSOR PASSENGER SIDE OUTSIDE MIRROR RED WIRE RED/GRN WIRE RIGHT OUTER REAR INTEGRATED RADAR SENSOR SIG 31 VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE

BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAN B H CAN B L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM DISCONNECT SWITCH RELAY ENERGIZED DRIVER ADJUSTABLE SEAT CUSHION LENGTH HEATER PAD DRIVER DOOR CONTROL UNIT DRIVER SEAT CLIMATE CONTROL SWITCH GROUP FRONT PASSENGER ADJUSTABLE SEAT CUSHION LENGTH HEATER PAD FRONT PASSENGER DOOR CONTROL UNIT FRONT PASSENGER SEAT CLIMATE CONTROL SWITCH GROUP FRONT SEAT HEATER/ SEAT VENTILATION CONTROL UNIT FUSE 138 FUSE 156 FUSE 163 HOT W/ BATTERY LEFT FRONT BACKREST SEAT VENTILATION MOTOR LEFT FRONT SEAT BACKREST HEATER PAD LEFT FRONT SEAT CUSHION HEATER PAD LEFT FRONT SEAT CUSHION SEAT VENTILATION MOTOR MOT GND (+) GND MOT GND/(+) NCA WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/ORG WIRE RED/PNK WIRE RED/VIO WIRE RED/WHT WIRE RIGHT FRONT BACKREST SEAT VENTILATION MOTOR RIGHT FRONT SEAT BACKREST HEATER PAD RIGHT FRONT SEAT CUSHION HEATER PAD RIGHT FRONT SEAT CUSHION SEAT VENTILATION MOTOR SIG VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE

AC HOUSING, AMBIANCE ILLUMINATION CONTROL UNIT BRN WIRE BRN/GRN WIRE CENTRAL CONTROL MODULE CLIMATE CONTROL OPERATING UNIT DRIVER MULTICONTOUR SEAT CONTROL UNIT DRIVER SEAT CONTROL UNIT DRIVER SEAT HEAD RESTRAINT ILLUMINATION DRIVER SEAT LUMBAR SUPPORT ELECTROPNEUMATIC CONTROLLER UNIT DRIVER SEAT LUMBAR SUPPORT PNEUMATIC PUMP FRONT PASSENGER DOOR CONTROL UNIT FRONT SEAT HEATER/ SEAT VENTILATION CONTROL UNIT FUEL PUMP CONTROL UNIT GLOVE BOX LAMP) HEATED REAR WINDOW RELAY LEFT REAR SIDE BAG SQUIB NCA WIRE PEDAL OPERATION MONITOR BUZZER RIGHT FRONT FOOTWELL LAMP RIGHT FRONT ILLUMINATED DOOR SILL MOLDING RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR RIGHT REAR DOOR CONTROL UNIT RIGHT REAR SEAT HEAD RESTRAINT ILLUMINATION STATIONARY HEATER FUEL PUMP STATIONARY HEATER RADIO REMOTE CONTROL RECEIVER VEHICLE INTERIOR FUSE, RELAY MODULE W/O AMBIANCE ILLUMINATION

ADDITIONAL BATTERY ALL-WHEEL DRIVE CONTROL UNIT BACKUP RELAY BATTERY DISCONNECT SWITCH RELAY BRN WIRE CENTRAL CONTROL MODULE CIRCUIT 50 RELAY DC/AC CONVERTER CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE EXHAUST FLAP CONTROLLER FINE PARTICLE SENSOR FRONT CIGARETTE LIGHTER W/ ASHTRAY ILLUMINATION FRONT VEHICLE INTERIOR POWER OUTLET HAND MOTION SENSOR LEFT FRONT LAMP UNIT MONO MULTI-FUNCTION CAMERA NCA WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PANORAMIC SLIDING ROOF CONTROL UNIT RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REAR WINDOW HEATER RIGHT REAR LAMP UNIT SOUND SYSTEM AMPLIFIER CONTROL UNIT SPRAY NOZZLE HOSE HEATER STARTER BATTERY PREFUSE BOX STATIONARY HEATER UNIT STEREO MULTI-FUNCTION CAMERA SUBWOOFER AMPLIFIER TRAILER RECOGNITION CONTROL UNIT TRANSMISSION OIL COOLING COOLANT CIRCULATION PUMP TRUNK LID/ LIFTGATE EMERGENCY OPENING BUTTON VOLTAGE DIP LIMITER W/ SMOKER'S PACKAGE W/ SOUND SYSTEM W/O SMOKER'S PACKAGE WIPER MOTOR

AMBIANCE ILLUMINATION CONTROL UNIT BLK WIRE BLK/WHT WIRE BRN WIRE BRN/RED WIRE CAN A H CAN A L CAN B H CAN B H STERN CAN B L CAN I H CAN I L CENTRAL CONTROL MODULE CONTROL UNIT OF NOX SENSOR UPSTREAM OF SCR CATALYTIC CONVERTER DRIVER DOOR CONTROL UNIT DRIVETRAIN SENSOR CAN (CAN I) POTENTIAL DISTRIBUTOR FRONT PASSENGER DOOR CONTROL UNIT FRONT PASSENGER MULTICONTOUR SEAT CONTROL UNIT FRONT PASSENGER SEAT CONTROL UNIT (W/O MEMORY) (UNDER RIGHT FRONT SEAT) HAND MOTION SENSOR (W/ FRONT GESTURE CONTROL) HEAD UNIT/INSTRUMENT CLUSTER DISPLAY CLUSTER NCA WIRE NOX SENSOR CONTROL UNIT DOWNSTREAM OF SCR CATALYTIC CONVERTER OVERHEAD CONTROL PANEL CONTROL UNIT PANORAMIC SLIDING ROOF CONTROL UNIT PNK WIRE PNK/WHT WIRE SOOT PARTICULATE SENSOR CONTROL UNIT TELEMATICS CAN (CAN A) POTENTIAL DISTRIBUTOR TOUCHPAD (W/ TOUCHPAD ONLY) TRAILER RECOGNITION CONTROL UNIT YEL WIRE

BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE CAN B H CAN B L CENTER LEFT FRONT PARKING SYSTEM DISTANCE SENSOR CENTER RIGHT FRONT PARKING SYSTEM DISTANCE SENSOR CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM DISP/RVC HEAD UNIT/ INSTRUMENT CLUSTER CONTROL UNIT INNER LEFT FRONT PARKING SYSTEM DISTANCE SENSOR INNER RIGHT FRONT PARKING SYSTEM DISTANCE SENSOR MOT GND/(+) NCA WIRE OUTER LEFT FRONT PARKING SYSTEM DISTANCE SENSOR OUTER RIGHT FRONT PARKING SYSTEM DISTANCE SENSOR PARKING SYSTEM SPEAKER REAR CAMERA COVER MOTOR RED WIRE SHIELD SIG STERN WHT/RED WIRE WHT/YEL WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

BACKUP CAMERA CONTROL UNIT (CENTER OF LIFTGATE) BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BRN WIRE BRN/RED WIRE CAN B H STERN CAN B L CAN HMI H CAN HMI L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 171 FUSE 21 HEAD UNIT HEAD UNIT/ INSTRUMENT CLUSTER CONTROL UNIT HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED MOT GND/(+) NCA WIRE REAR CAMERA COVER MOTOR RED WIRE RED/WHT WIRE SHIELD SHIELD DISP/RVC SHIELD RVC SIG VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE VIO/WHT WIRE W/ CONNECT 20 W/ CONNECT 5

ACCELERATOR PEDAL SENSOR BLK WIRE BLK/GRN WIRE BLK/ORG WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE CAN C H CAN C L CAN PER H CAN PER L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM FL 1 FL 2 FL-GND FLEX-E BM FLEX-E BP FUEL PRESSURE SENSOR FUEL PUMP CONTROL UNIT (OUTER CENTER REAR UNDER BODY) FUEL QUALITY SENSOR FUSE 159 GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRY/BLU WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED MPAC U MPAC V MPAC W ORG/BLU WIRE PNK WIRE PNK/BLU WIRE PUMP RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SENS 1 SENS 1 GND SENS 2 SENS 2 GND SIG STARTING/ CHARGING SYSTEM VEHICLE INTERIOR FUSE, RELAY MODULE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE