Mercedes-Benz A-class W177 (2018-2023) vehicle interior fuse, relay module Wiring diagrams

BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B H STERN CAN B L CENTER ENGINE HOOD CONTACT SWITCH CENTRAL CONTROL MODULE CENTRAL LOCKING STATUS DISPLAY COMPUTER DATA LINES SYSTEM DCS DCS (+) DCS GND DRIVER DOOR AMBIANCE ILLUMINATION DRIVER DOOR CENTRAL LOCKING INSIDE DOOR HANDLE SWITCH DRIVER DOOR CONTROL UNIT DRIVER DOOR HANDLE AMBIANCE ILLUMINATION DRIVER DOOR HANDLE ILLUMINATION DRIVER DOOR LOCK DRIVER DOOR POCKET LIGHTING ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 156 FUSE 21 GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRY/RED WIRE HOT AT ALL TIMES LED LIN LOCK UNLOCK MOT GND/(+) MOT- PNK/BLU WIRE PNK/VIO WIRE PNK/WHT WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE SIG SIG (1) SIG (2) SIG GND TRUNK LID/LIFTGATE EXTERNAL OPERATION BUTTON TRUNK LID/LIFTGATE LOCK TRUNK LID/LIFTGATE UNLOCKING BUTTON VEHICLE INTERIOR FUSE, RELAY MODULE VIO/PNK WIRE W/ INCREASED THEFT PROTECTION WHT/GRN WIRE WHT/VIO WIRE YEL WIRE

ALARM SIREN BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L COMPUTER DATA COMPUTER DATA LINES SYSTEM CORNER OF ROOF) DCS (+) DCS GND DRIVER DOOR EXIT, WARNING LAMP FRONT PASSENGER DOOR LOCK FRONT RIGHT - FUSE 129 FUSE 140 FUSE 161 FUSE 163 GRN WIRE GRY/RED WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL UNIT LEFT REAR DOOR CENTRAL LOCKING INSIDE DOOR HANDLE SWITCH LEFT REAR DOOR CONTROL UNIT LEFT REAR DOOR HANDLE AMBIANCE ILLUMINATION LEFT REAR DOOR HANDLE ILLUMINATION LEFT REAR DOOR LOCK LEFT REAR DOOR STOWAGE COMPARTMENT ILLUMINATION LIN LINES SYSTEM LOCK UNLOCK MOT GND/(+) OVERHEAD CONTROL PANEL CONTROL UNIT PNK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/VIO WIRE PNK/WHT WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SIG GND VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE VIO/WHT WIRE VISION PACKAGE W/ INCREASED THEFT PROTECTION W/ LIGHTS, WHEELWELL) WHT/VIO WIRE YEL WIRE YEL/GRN WIRE

BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DCS DCS GND FRONT PASSENGER DOOR AMBIANCE ILLUMINATION FRONT PASSENGER DOOR CENTRAL LOCKING INSIDE DOOR HANDLE SWITCH FRONT PASSENGER DOOR CONTROL UNIT FRONT PASSENGER DOOR EXIT, WARNING LAMP FRONT PASSENGER DOOR HANDLE AMBIANCE ILLUMINATION FRONT PASSENGER DOOR HANDLE ILLUMINATION FRONT PASSENGER DOOR POCKET LIGHTING FUSE 154 GRN WIRE GRY/RED WIRE HOT AT ALL TIMES LED LIN MOT GND/(+) MOT GND/(+) LOCK UNLOCK PNK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/VIO WIRE PNK/WHT WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RIGHT REAR DOOR CENTRAL LOCKING INSIDE DOOR HANDLE SWITCH RIGHT REAR DOOR CONTROL UNIT RIGHT REAR DOOR HANDLE AMBIANCE ILLUMINATION RIGHT REAR DOOR HANDLE ILLUMINATION RIGHT REAR DOOR LOCK RIGHT REAR DOOR STOWAGE COMPARTMENT ILLUMINATION SIG SIG GND VEHICLE INTERIOR FUSE, RELAY MODULE VIO/PNK WIRE W/ INCREASED THEFT PROTECTION WHT/VIO WIRE YEL WIRE

BLK WIRE BRN WIRE COMPUTER DATA COMPUTER DATA LINES SYSTEM FRONT PASSENGER SEAT HEAD RESTRAINT AMBIANCE ILLUMINATION FUSE 140 FUSE 142 FUSE 154 FUSE 156 FUSE 161 FUSE 163 GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT CENTER AIR VENT AMBIANCE ILLUMINATION LEFT FRONT FOOTWELL AMBIANCE ILLUMINATION LEFT REAR DOOR CONTROL UNIT LEFT REAR DOOR HANDLE AMBIANCE ILLUMINATION LEFT REAR DOOR STOWAGE COMPARTMENT ILLUMINATION LIN LINES SYSTEM NCA WIRE PNK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RIGHT FRONT FOOTWELL AMBIANCE ILLUMINATION RIGHT REAR DOOR HANDLE AMBIANCE ILLUMINATION RIGHT REAR DOOR STOWAGE COMPARTMENT ILLUMINATION RIGHT REAR FOOTWELL AMBIANCE ILLUMINATION RIGHT REAR SEAT HEAD RESTRAINT AMBIANCE ILLUMINATION VEHICLE INTERIOR FUSE, RELAY MODULE W/ SEAT MODEL VARIANT 3 WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/ORG WIRE

BRN WIRE CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM FLEX-E BM FLEX-E BP FUSE 164 GRN WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED NCA WIRE PNK WIRE RED/WHT WIRE SENS GND SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS STEERING WHEEL HEATER TEMP VEHICLE INTERIOR FUSE, RELAY MODULE

BLK WIRE BLK/VIO WIRE BLU WIRE BLU/BRN WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DRIVER DOOR CENTRAL LOCKING INSIDE DOOR HANDLE SWITCH DRIVER DOOR CONTROL UNIT (IN DRIVER FRONT DOOR) DRIVER DOOR HANDLE ILLUMINATION DRIVER SIDE OUTSIDE MIRROR EXTERIOR LIGHTS, ELECTRIC PARKING BRAKE SWITCH GROUP FLEX-E BM FLEX-E BP FRONT CIGARETTE LIGHTER W/ ASHTRAY ILLUMINATION FUSE 110 FUSE 132 FUSE 154 FUSE 156 FUSE 161 FUSE 163 GRN WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED ILLU INSTRUMENT CLUSTER LEFT REAR DOOR CENTRAL LOCKING INSIDE DOOR HANDLE SWITCH LEFT REAR DOOR CONTROL UNIT LEFT REAR DOOR HANDLE ILLUMINATION LEFT REAR POWER WINDOW SWITCH PNK WIRE PNK/RED WIRE RED WIRE RED/BLU WIRE RED/GRN WIRE RED/ORG WIRE RED/YEL WIRE SENS GND SIG SIG (1) SIG (2) SIG 3 STEERING COLUMN MODULE CONTROL UNIT VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE VIO/WHT WIRE

BLK WIRE BLK/ORG WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L CENTER CONSOLE KEYLESS GO ANTENNA COMPUTER DATA LINES SYSTEM DRIVER DOOR KEYLESS-GO DOOR HANDLE ELECTRONIC IGNITION SWITCH CONTROL UNIT FM 1, AM, CL (ZV), KEYLESS GO ANTENNA AMPLIFIER FRONT PASSENGER DOOR KEYLESS-GO DOOR HANDLE FUSE 132 GRY/BLK WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL UNIT KAPA LEFT REAR KEYLESS GO DOOR HANDLE LEFT UNDER FLOOR KEYLESS GO ANTENNA LF 1 LF 2 LF MID LOAD COMPARTMENT KEYLESS-GO ANTENNA RED WIRE RED/YEL WIRE RIGHT REAR KEYLESS GO DOOR HANDLE RIGHT UNDER FLOOR KEYLESS GO ANTENNA VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE VIO/WHT WIRE WHT WIRE YEL/BRN WIRE YEL/GRN WIRE

BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FUSE 113 HOT AT ALL TIMES MOT GND/(+) MOT GND/(+) SENS 2 NCA WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PANORAMIC SLIDING ROOF CONTROL UNIT PANORAMIC SLIDING ROOF DRIVE UNIT PANORAMIC SLIDING ROOF ROLLER SUN BLIND DRIVE UNIT RED WIRE SENS (+) SENS GND SENS 1 SENS 2 VEHICLE INTERIOR FUSE, RELAY MODULE

AIR CONDITIONING SYSTEM BLU WIRE BRN WIRE BRN/GRY WIRE ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 166 FUSE 53 GRN/VIO WIRE GRY/RED WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ CIRCUIT NCA WIRE RED/GRN WIRE RED/GRY WIRE SHD SHIELD SIG STATIONARY HEATER FUEL PUMP STATIONARY HEATER RADIO REMOTE CONTROL RECEIVER STATIONARY HEATER SWITCHOVER VALVE STATIONARY HEATER UNIT TELEPHONE ANTENNA SPLITTER VEHICLE INTERIOR FUSE, RELAY MODULE W/O WIRELESS PHONE CHARGING AT FRONT, ANTENNA

BLK/BLU WIRE BLK/YEL WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L STERN CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FLUID LEVEL FUSE 169 FUSE 21 FUSE 44 HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INDICATOR SWITCH MOT GND/(+) NCA WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE SAM CONTROL UNIT SEDAN SIG SIG RBA-2 SPRAY NOZZLE HOSE HEATER (W/ HEATED WINDSHIELD WASHER SYSTEM) STEERING COLUMN MODULE CONTROL UNIT TAILGATE WIPER MOTOR (CENTER OF LIFTGATE) VEHICLE INTERIOR FUSE, RELAY MODULE WINDSHIELD WASHER WINDSHIELD WASHER SYSTEM PUMP WIPER MOTOR