Mercedes-Benz A-class W177 (2018-2023) brn/wht 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

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

BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER MULTICONTOUR SEAT CONTROL UNIT DRIVER SEAT LUMBAR SUPPORT PNEUMATIC PUMP FRONT PASSENGER MULTICONTOUR SEAT CONTROL UNIT FRONT PASSENGER SEAT LUMBAR SUPPORT PNEUMATIC PUMP FUSE 116 HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED RED WIRE SIG VEHICLE INTERIOR FUSE, RELAY MODULE

BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FRONT PASSENGER ADJUSTABLE SEAT CUSHION LENGTH HEATER PAD FRONT PASSENGER DOOR CONTROL UNIT FRONT PASSENGER SEAT CLIMATE CONTROL SWITCH GROUP FRONT PASSENGER SEAT CONTROL UNIT MOT GND (+) GND MOT GND/(+) NCA WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE RED/ORG WIRE RED/VIO 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 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

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/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN B L STERN CENTER CONSOLE CUP HOLDER ILLUMINATION CENTER CONSOLE STOWAGE COMPARTMENT ILLUMINATION CLIMATE CONTROL OPERATING UNIT COMPUTER DATA LINES SYSTEM DRIVER SEAT HEAD RESTRAINT ILLUMINATION ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE FRONT PASSENGER DOOR CENTRAL LOCKING INSIDE DOOR HANDLE SWITCH FRONT PASSENGER DOOR CONTROL UNIT FRONT PASSENGER DOOR HANDLE ILLUMINATION FRONT PASSENGER SEAT HEAD RESTRAINT ILLUMINATION FUSE 21 GRN WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED ILLU LEFT REAR SEAT HEAD RESTRAINT ILLUMINATION NCA WIRE ORG/ WIRE PASSENGER SIDE OUTSIDE MIRROR PASSENGER-SIDE POWER WINDOW SWITCH PNK WIRE PNK/RED WIRE RED WIRE RED/BLU WIRE RED/YEL WIRE RIGHT REAR DOOR CENTRAL LOCKING INSIDE DOOR HANDLE SWITCH RIGHT REAR DOOR CONTROL UNIT RIGHT REAR DOOR HANDLE ILLUMINATION RIGHT REAR POWER WINDOW SWITCH RIGHT REAR SEAT HEAD RESTRAINT ILLUMINATION SAM CONTROL MODULE (RIGHT FRONT FOOTWELL) SENS GND SIG SIG (1) SIG (2) SIG 3 START/STOP BUTTON VIO WIRE W/O AMBIANCE ILLUMINATION

BLU/WHT WIRE BRN WIRE BRN/WHT WIRE DRIVER SEAT LUMBAR SUPPORT ADJUSTMENT BUTTON DRIVER SEAT LUMBAR SUPPORT ELECTROPNEUMATIC CONTROLLER UNIT DRIVER SEAT LUMBAR SUPPORT PNEUMATIC PUMP FRONT PASSENGER SEAT LUMBAR SUPPORT ADJUSTMENT BUTTON FRONT PASSENGER SEAT LUMBAR SUPPORT ELECTROPNEUMATIC CONTROLLER UNIT FRONT PASSENGER SEAT LUMBAR SUPPORT PNEUMATIC PUMP FUSE 116 HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED PUMP RED WIRE SIG GND VEHICLE INTERIOR FUSE, RELAY MODULE

BLK WIRE BLK/VIO WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER DOOR CONTROL UNIT DRIVER DOOR POWER WINDOW MOTOR DRIVER-SIDE POWER WINDOW, OUTSIDE MIRROR ADJUSTMENT SWITCH GROUP DWN FRONT PASSENGER DOOR CONTROL UNIT FRONT PASSENGER DOOR POWER WINDOW MOTOR FUSE 154 FUSE 156 FUSE 161 FUSE 163 GRN WIRE HOT AT ALL TIMES LEFT REAR DOOR CONTROL UNIT LEFT REAR DOOR POWER WINDOW MOTOR LEFT REAR POWER WINDOW PUSH BUTTON SWITCH LIN-BIO MOT GND/(+) PASSENGER-SIDE POWER WINDOW SWITCH PNK WIRE RED WIRE RED/BLU WIRE RED/GRN WIRE RIGHT REAR DOOR CONTROL UNIT RIGHT REAR DOOR POWER WINDOW MOTOR RIGHT REAR POWER WINDOW SWITCH VEHICLE INTERIOR FUSE, RELAY MODULE WHT/BLK WIRE WHT/GRN WIRE YEL/GRN WIRE

BL (+) BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE BUL (+) CAN B H CAN B L F LIGHT GND FUSE 202 FUSE 208 FUSE 209 FUSE 210 FUSE 211 GRN WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/YEL WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED ILL MOT GND/(+) PNK SENS 1 WIRE PNK WIRE PNK/RED WIRE REAR FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RFL (+) S ILLU GND SENS SENS 2 SENS GND STERN TL L (+) TL-R (+) TRAILER HITCH RELEASE TRAILER HITCH SWITCH TRAILER RECOGNITION CONTROL UNIT TRAILER SOCKET TSI R (+) TSI-L (+) WHT WIRE