Mercedes-Benz A-class W177 (2018-2023) red/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

ADDITIONAL BATTERY FUSE AIR CONDITIONING SYSTEM BL (+) BL/TST (+) BLK/ORG WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE BUL (+) CAN B H CAN B H STERN CAN B L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM CRASH DCS DEFOGGER SYSTEM DIAG DOOR LOCKS, TRUNK, TAILGATE, FUEL DOORS SYSTEMS ENGINE CONTROLS SYSTEM FUSE 158 FUSE 165 GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/PNK WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INSTRUMENT CLUSTER SYSTEM MOT (+) GND MOT MOT GND/(+) MOT- NAVIGATION SYSTEM ORG/BLK WIRE PNK/BLU WIRE PNK/GRY WIRE PNK/RED WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE REL (+) SEATS SYSTEM SIG SIG (1) SIG (L) SIG R SUPPLEMENTAL RESTRAINTS SYSTEM TL (+) TL/PL (+) TRUNK, TAILGATE, FUEL DOORS SYSTEM TSI (+) VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE VIO/BLK WIRE VIO/GRN WIRE WHT/VIO WIRE WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM NAVIGATION SYSTEM WIPER/WASHER, MIRRORS, HEADLIGHTS SYSTEMS YEL WIRE YEL/GRN WIRE YEL/WHT WIRE

AM FM DABIII ANTENNA AMPLIFIER AUDIO H AUDIO L+ BLK WIRE BLK/ORG WIRE BLU WIRE BLU/BRN WIRE BRN WIRE BT WLAN CENTER INSTRUMENT PANEL SPEAKER DABIII ELECTRONIC IGNITION SWITCH CONTROL UNIT FM AM FM DABIII FUSE 204 GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRY/BLU WIRE HEAD UNIT/INSTRUMENT CLUSTER CONTROL UNIT HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HSVL MIC-L MIDLINE SOUND SYSTEM NCA WIRE PNK WIRE REAR FUSE, RELAY MODULE REAR SPOILER ANTENNA REAR SUBWOOFER REAR WINDOW ANTENNA RED WIRE RED/BLU WIRE RED/GRY WIRE SHD SOUND SYSTEM AMPLIFIER CONTROL UNIT W/ MIDLINE SOUND SYSTEM WAKE-UP WHT WIRE WHT/BLK WIRE YEL WIRE

AUDIO H AUDIO L+ BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CAN A H CAN A L CAN L H CAN L L CAN-D H CAN-D L COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM ANTENNA 1 EMERGENCY CALL SYSTEM ANTENNA 2 GPS GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRY WIRE GRY/BLU WIRE GRY/WHT WIRE HEAD UNIT/INSTRUMENT CLUSTER DISPLAY CLUSTER INSTRUMENT CLUSTER CONTROL UNIT MIC H MIC-L MUTE NCA WIRE ORG/ WIRE ORG/WHT WIRE PNK WIRE RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/YEL WIRE SHD SUPPLEMENTAL RESTRAINTS SYSTEM TEL TOUCHPAD VIO WIRE WHT WIRE WHT/BLK 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

BL/TSI (+) BLK WIRE BLK/RED WIRE BLK/VIO WIRE BLU WIRE BLU/BRN WIRE BRN WIRE BRN/RED WIRE CAN PER H CAN PER L CAN-B_H STERN CAN-B_L CENTER STOP LAMP COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 21 FUSE 22 FUSE 24 FUSE 48 GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/WHT WIRE HAZARD SIG HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED L/PL/SML (+) DIAG LEFT FRONT LAMP UNIT LEFT LICENSE PLATE LAMP NCA WIRE PNK WIRE PNK/RED WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE RFL (+) RIGHT FRONT LAMP UNIT RIGHT LICENSE PLATE LAMP SAM CONTROL UNIT (RIGHT FRONT FOOTWELL) SIG SIG (1) SIG (2) SIG 3 TL (+) TL/PL/SML (+) DIAG VIO WIRE VIO/BLK WIRE VIO/GRN WIRE W/ DYNAMIC LED HEADLAMPS W/ STATIC LED HEADLAMPS YEL/WHT 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)

BACKUP CAMERA CONTROL UNIT CENTRAL CONTROL MODULE DRIVER DOOR CONTROL UNIT FROM FUSE 149 (DIAGRAM 5 OF 7) FRONT CENTER CONSOLE USB CONNECTOR FRONT PASSENGER DOOR CONTROL UNIT FUEL PUMP CONTROL UNIT FUSE 150 FUSE 152 FUSE 154 FUSE 156 FUSE 157 FUSE 158 FUSE 159 FUSE 160 FUSE 161 FUSE 162 FUSE 163 FUSE 164 FUSE 165 FUSE 167 FUSE 168 FUSE 169 FUSE 170 FUSE 171 HAND MOTION SENSOR HEAD UNIT HEAD UNIT/ INSTRUMENT CLUSTER CONTROL UNIT LEFT REAR DOOR CONTROL UNIT MONO MULTI-FUNCTION CAMERA MULTIMEDIA CONNECTION UNIT N/A NCA WIRE PARKING SYSTEM CONTROL UNIT RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REAR SWITCHING MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RIGHT REAR DOOR CONTROL UNIT STEERING COLUMN MODULE CONTROL UNIT STEREO MULTI-FUNCTION CAMERA TIRE PRESSURE MONITOR CONTROL UNIT TO ELECTRIC STEERING LOCK CONTROL UNIT (DIAGRAM 7 OF 7) W/ DISTRONIC DISTANCE-PILOT W/ TIRE PRESSURE MONITOR W/ WIRELESS MOBILE PHONE CHARGING W/O ACTIVE PARKING ASSIST W/ PARKTRONIC W/O ACTIVE PARKING ASSIST, PARKTRONIC W/O DISTRONIC DISTANCE-PILOT W/O TIRE PRESSURE MONITOR W/O WIRELESS MOBILE PHONE CHARGING

BACKUP RELAY FROM FUSE 22 (DIAGRAM 2 OF 7) FROM VEHICLE INTERIOR FUSE, RELAY MODULE (DIAGRAM 4 OF 7) FUSE 201 FUSE 202 FUSE 203 FUSE 204 FUSE 205 FUSE 206 FUSE 207 FUSE 208 FUSE 209 FUSE 210 FUSE 211 FUSE 212 FUSE 213 FUSE 214 FUSE 215 FUSE 33 FUSE 34 FUSE 35 FUSE 36 FUSE 37 FUSE 38 FUSE 39 FUSE 58 FUSE 60 N/A N/A N/A RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE SPECIAL-PURPOSE VEHICLE MULTI-FUNCTION CONTROL UNIT SUBWOOFER AMPLIFIER TRAILER RECOGNITION CONTROL UNIT W/ ELECTRONIC INTERFACE

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