Mercedes-Benz A-class W177 (2018-2023) blk/blu Wiring diagrams

58 D AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CENTRAL CONTROL MODULE CLUTCH COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DOOR LOCKS SYSTEM, ANTI-THEFT SYSTEMS DTRL ENGINE COMPARTMENT FUSE, RELAY MODULE ENGINE CONTROLS SYSTEM FUSE 21 FUSE 40 FUSE 42 FUSE 68 GND KLA GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/ORG WIRE GRY/RED WIRE HAZARD SIG HB (+) HEADLIGHTS SYSTEM HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS HORNS SYSTEM HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT 15 RELAY ENERGIZED HOT W/ TERMINAL ILLU INSTRUMENT CLUSTER SYSTEM LB (+) MOT GND/(+) MOT GND/(+) HAZARD SIG NCA WIRE ORG/ WIRE PNK WIRE PNK/RED WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/BLU WIRE RED/PNK WIRE RED/VIO WIRE RED/YEL WIRE RELAY ENERGIZED SIG SIG (1) SIG (2) SIG 3 SML STARTING/CHARGING SYSTEM TSI-L (+) TSIR (+) VALVE GND VIO WIRE VIO/BLK WIRE WHT/BLU WIRE WIPER/WASHER SYSTEM YEL WIRE YEL/GRY WIRE

AUDIO H AUDIO L+ AUGMENTED REALITY CAMERA BACKUP CAMERA CONTROL UNIT BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CAN A H CAN A L CAN HMI H CAN HMI L CAN-D H CAN-D L CARSHARING CONTROL UNIT COMPUTER DATA LINES SYSTEM DRIVER HANDS-FREE SYSTEM MICROPHONE FRONT PASSENGER HANDS-FREE SYSTEM MICROPHONE FUSE 152 FUSE 166 GPS GPS ANTENNA GRN WIRE GRN/PNK WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/WHT WIRE HEAD UNIT (LOWER LEFT END OF DASH) HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HSVL LEFT A-PILLAR TWEETER LEFT FRONT DOOR WOOFER/MIDRANGE SPEAKER LEFT REAR DOOR TWEETER LEFT REAR DOOR WOOFER/MIDRANGE SPEAKER MIC H MIC-L NCA WIRE PARKING SYSTEM CONTROL UNIT RED WIRE RED/GRN WIRE RED/GRY WIRE SHD SHD GNSS SHD MM-BOX SHD RVC SHD SPV/AR USB DATA H USB DATA L USB RUI H USB RUI L VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE VIO/WHT WIRE W/ ACTIVE PARKING ASSIST W/ PARKTRONIC W/ HERMES LTE W/O ACTIVE PARKING ASSIST W/ PARKTRONIC W/O HERMES LTE W/O SOUND SYSTEM WAKE-UP WHT WIRE

BLK WIRE BLK/BLU WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE FRONT CENTER CONSOLE USB CONNECTOR FUSE 170 GRN WIRE GRN/PNK WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INSTRUMENT CLUSTER SPEAKER LEFT REAR DOOR TWEETER LEFT REAR DOOR WOOFER/MIDRANGE SPEAKER MULTIMEDIA CONNECTION UNIT NCA WIRE RED WIRE RIGHT A-PILLAR TWEETER RIGHT FRONT DOOR WOOFER/MIDRANGE SPEAKER RIGHT REAR DOOR TWEETER RIGHT REAR DOOR WOOFER/MIDRANGE SPEAKER SHD USB USB DATA H USB DATA L USB GND USB H USB L USB RUI H USB RUI L VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE VIO/WHT WIRE W/ SOUND SYSTEM W/ WIRELESS MOBILE PHONE CHARGING W/O SOUND SYSTEM W/O WIRELESS MOBILE PHONE CHARGING WAKE-UP WHT WIRE

AUDIO H AUDIO L+ BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CAN A H CAN A L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DRIVER HANDS-FREE SYSTEM MICROPHONE ETH (-) FRONT PASSENGER HANDS-FREE SYSTEM MICROPHONE GRN WIRE GRN/BLU WIRE GRN/PNK WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE HEAD UNIT/INSTRUMENT CLUSTER CONTROL UNIT LEFT A-PILLAR TWEETER LEFT FRONT DOOR WOOFER/MIDRANGE SPEAKER MIC H MUTE NCA WIRE PNK WIRE RED WIRE RED/GRY WIRE RIGHT A-PILLAR TWEETER RIGHT FRONT DOOR WOOFER/MIDRANGE SPEAKER RIGHT REAR DOOR TWEETER RIGHT REAR DOOR WOOFER/MIDRANGE SPEAKER SHD SUPPLEMENTAL RESTRAINTS SYSTEM USB DATA H USB DATA L USB RUI H USB RUI L VIO WIRE VIO/WHT WIRE W/ SOUND SYSTEM WAKE-UP WHT WIRE WHT/BLK WIRE YEL WIRE

AM FM DABIII AUDIO H AUDIO L+ BLK WIRE BLK/BLU WIRE BLU WIRE BLU/WHT WIRE BLUETOOTH/WIFI ANTENNA BT WLAN COMPUTER DATA LINES SYSTEM DIAGNOSTIC CONNECTOR ETH (+) ETHERNET ETH (-) ETH (-) PNK ETH (+) WIRE FM DABIII FUSE 108 FUSE 131 FUSE 144 FUSE 145 FUSE 152 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRY/BLU WIRE HEAD UNIT (LOWER LEFT END OF DASH) HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HSVL INSTRUMENT CLUSTER CONTROL UNIT INT-WLAN-EXT MOST MUTE NCA WIRE PNK AUDIO L WIRE PNK WIRE RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/YEL WIRE SDARS SDARS ANTENNA SHD SHD BT/WLAN SHD CID/PIP SHD EMOST SHD FM/AM SHD TV/SDARS SHD WLAN TV 1 ANTENNA AMPLIFIER TV 3 ANTENNA AMPLIFIER VEHICLE INTERIOR FUSE, RELAY MODULE WAKE-UP WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE

BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BRN WIRE BRN/RED WIRE CAN B H STERN CAN B L CENTER CONSOLE STOWAGE COMPARTMENT ILLUMINATION COMPUTER DATA LINES SYSTEM FOOTWELL ILLUMINATION SWITCH GLOVE BOX LAMP) GLOVE BOX LAMP/ SWITCH GRY WIRE GRY/BLU WIRE GRY/RED WIRE ILLUMINATION CIRCUIT INSTRUMENT LEFT FRONT ILLUMINATED DOOR SILL MOLDING LEFT FRONT MIRROR LAMP SWITCH LEFT LOAD COMPARTMENT LAMP LEFT SUN VISOR MIRROR LAMP LIFTGATE AMBIENT LAMP, WARNING LAMP ORG/BLK WIRE PEDAL OPERATION MONITOR BUZZER PEDAL OPERATION MONITOR SWITCH PNK/GRY WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RIGHT FRONT ILLUMINATED DOOR SILL MOLDING RIGHT FRONT MIRROR LAMP SWITCH RIGHT SUN VISOR MIRROR LAMP SAM CONTROL UNIT (RIGHT FRONT FOOTWELL) SIG VIO/BLK WIRE W/ AMBIENCE ILLUMINATION W/ DRIVING SCHOOL PACKAGE W/ LIGHT, VISION PACKAGE W/O AMBIENCE ILLUMINATION W/O DRIVING SCHOOL PACKAGE, LIGHT, VISION PACKAGE WHT/BLU WIRE WHT/BRN WIRE

BLK WIRE BLK/BLU WIRE BLK/YEL WIRE BRN WIRE COMPARTMENT TERMINAL 15 RELAY ENERGIZED DRIVER-SIDE AIR VENT AMBIANCE ILLUMINATION ENGINE COMPARTMENT FUSE, RELAY MODULE FOOTWELL ILLUMINATION DIODE 1 FOOTWELL ILLUMINATION DIODE 2 FRONT PASSENGER SIDE AIR VENT AMBIANCE ILLUMINATION FUSE 21 FUSE 65 GRN WIRE GRN/YEL WIRE GRY/RED WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE LEFT FRONT FOOTWELL LAMP LOWER DRIVER-SIDE INSTRUMENT PANEL AMBIANCE ILLUMINATION LOWER PASSENGER-SIDE INSTRUMENT PANEL AMBIANCE ILLUMINATION ORG/BLK WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RIGHT FRONT FOOTWELL LAMP UPPER DRIVER-SIDE INSTRUMENT PANEL AMBIANCE ILLUMINATION UPPER PASSENGER-SIDE INSTRUMENT PANEL AMBIANCE ILLUMINATION W/ STYLE PACKAGE YEL WIRE

BLK/BLU WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER ADJUSTABLE SEAT CUSHION LENGTH HEATER PAD DRIVER DOOR CONTROL UNIT DRIVER SEAT CLIMATE CONTROL SWITCH GROUP DRIVER SEAT CONTROL UNIT FUSE 136 FUSE 138 FUSE 156 FUSE 163 HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED 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/(+) MOT GND/(+) SENS MOT GND/(+) SENS GND NCA WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE RED/ORG WIRE RED/VIO WIRE SIG GND VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE

ACTIVE BRAKE ASSIST CONTROLLER UNIT ACTIVE DISTANCE ASSIST DISTRONIC ELECTRIC CONTROLLER UNIT BACKUP RELAY BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BRN WIRE CENTRAL CONTROL MODULE CIRCUIT 50 RELAY DRIVE UNIT CONTROL UNIT DRIVETRAIN CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT TERMINAL 15 RELAY FOOTWELL ILLUMINATION SWITCH FROM FUSE 48 (DIAGRAM 1 OF 7) FUSE 21 FUSE 22 FUSE 23 FUSE 24 FUSE 25 FUSE 62 FUSE 64 FUSE 65 FUSE 66 FUSE 67 FUSE 68 FUSE 69 FUSE 70 FUSE 71 FUSE 72 LEFT FRONT LAMP UNIT ME-SFI (ME) CONTROL UNIT N/A PEDAL OPERATION MONITOR SWITCH RED WIRE RED/BLK WIRE RED/BLU WIRE RED/PNK WIRE RED/VIO WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT SHORT, LONG-RANGE RADAR SENSOR TO FUSE 33 (DIAGRAM 6 OF 7) W/ ACTIVE DISTANCE ASSIST DISTRONIC W/ ADAPTIVE CRUISE CONTROL PLUS (DISTRONIC PLUS) W/ DYNAMIC LED HEADLAMPS W/ STATIC LED HEADLAMPS W/O ADAPTIVE CRUISE CONTROL PLUS (DISTRONIC PLUS)

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