Mercedes-Benz GLC-class Coupe C254 (2023-2024) yel/blk Wiring diagrams

BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/RED WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/VIO WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DUAL BRAKE VACUUM SENSOR ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT FLEX BM FLEX BP FUSE 128 FUSE 21 FUSE 22 GRN WIRE GRN/GRY WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/BRN WIRE HOT AT ALL TIMES HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED LEFT ELECTRIC PARKING BRAKE ACTUATOR MOTOR PEDAL ANGLE SENSOR PNK WIRE PNK/GRN WIRE PNK/GRY WIRE PNK/RED WIRE PREFUSE BOX RED WIRE RED/BLU WIRE RED/WHT WIRE RIGHT ELECTRIC PARKING BRAKE ACTUATOR MOTOR SIG WHT WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE

ACCELERATOR PEDAL SENSOR BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CAN L CAN-H COC COMPUTER DATA LINES SYSTEM DRIVETRAIN CONTROL UNIT ENGINE MANAGEMENT CONTROL UNIT FRONT SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT FULLY INTEGRATED TRANSMISSION CONTROL ELECTRIC CONTROLLER UNIT FUSE 119 FUSE 122 FUSE 439 GRN/WHT WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT W/ ENGINE COMPARTMENT 15 RELAY ENERGIZED INSTRUMENT CLUSTER CONTROL UNIT ORG/ WIRE RED/BLK WIRE RED/BLU WIRE RED/PNK WIRE RIGHT REAR SHORT RANGE RADAR SENSOR SIG START/STOP BUTTON THROTTLE VALVE ACTUATOR TOP OF ENGINE) VIO/WHT WIRE WHT WIRE YEL WIRE YEL/BLK WIRE

BACKUP LAMPS CIRCUIT BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/ORG WIRE BRN WIRE CAN L COMPUTER DATA LINES SYSTEM DRIVETRAIN CONTROL UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT FUSE 414 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE HOT AT ALL TIMES INNER LEFT REAR LAMP UNIT INNER RIGHT REAR LAMP UNIT ORG/ WIRE OUTER LEFT REAR LAMP UNIT R SIG REAR SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT RED/GRY WIRE SIG START/STOP BUTTON TL SIG TSI (+) SIG VIO/BLK WIRE VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

ADDITIONAL BRAKE LAMP BLK WIRE BLK/RED WIRE BLU/BRN WIRE BLU/WHT WIRE BRN WIRE CAN L COC COMPUTER DATA LINES SYSTEM EXTERIOR LIGHTS SWITCH FRONT SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT FUSE 111 GRY WIRE GRY/BLK WIRE GRY/BLU WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL UNIT OUTER RIGHT REAR LAMP UNIT PNK/RED WIRE RED/WHT WIRE SIG VIO WIRE VIO/GRN WIRE VIO/YEL WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

AIR CONDITIONING SYSTEM BLK/WHT WIRE BLU/BRN WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/WHT WIRE CAN L COMPUTER DATA LINES SYSTEM FRONT SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS INSTRUMENT CLUSTER SYSTEM INTERIOR LIGHTS SYSTEM HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS KLA ORG/ WIRE ORG/GRN WIRE ORG/VIO WIRE PNK/RED WIRE RED/BRN WIRE RED/VIO WIRE SIG SIG (+) COC STARTING/CHARGING SYSTEM VIO WIRE VIO/WHT WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/ORG WIRE

BLK WIRE BLK/WHT WIRE BLU/BRN WIRE BLU/VIO WIRE BRAKE FLUID LEVEL SWITCH BRN WIRE BRN/BLU WIRE BRN/WHT WIRE CAN L CAN-H COMPUTER DATA LINES SYSTEM ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT EXTERIOR LIGHTS SWITCH FLEX BM FLEX BP FRONT SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT FUSE 107 FUSE 113 FUSE 209 FUSE 306 FUSE 414 GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL UNIT LEFT FRONT LAMP UNIT PNK WIRE PNK/GRY WIRE PNK/RED WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REAR SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RIGHT FRONT LAMP UNIT SIG SIG (+) COC VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN WIRE

22 23 LIN BLK WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/YEL WIRE COC DOOR LOCKS SYSTEM DRIVETRAIN CONTROL UNIT ELECTRIC PARKING BRAKE SWITCH ELECTRONIC IGNITION SWITCH CONTROL UNIT FRONT SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT GRN WIRE GRN/YEL WIRE GRY/BLU WIRE HOOD CONTACT SWITCH LEFT FRONT DOOR HANDLE LEFT FRONT DOOR LOCK LEFT REAR DOOR HANDLE LEFT REAR DOOR LOCK ORG/ WIRE REAR SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT REAR SWITCHING MODULE RED WIRE RIGHT FRONT DOOR HANDLE RIGHT FRONT DOOR LOCK RIGHT REAR DOOR HANDLE RIGHT REAR DOOR LOCK ROOF ANTENNA MODULE SIG SIG 20 21 START/STOP BUTTON UPPER CONTROL PANEL CONTROL UNIT VIO WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/ORG WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/ORG WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/WHT WIRE C REL T (+) SIG C REL.U (-) SIG C REL.X (+) CAN L COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM ENGINE CONTROLS SYSTEM FUSE 421 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES NAVIGATION SYSTEM PNK/BLK WIRE PNK/VIO WIRE POWER DISTRIBUTION SYSTEM REAR SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SEATS SYSTEM SIG STARTING/CHARGING SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM EXTERIOR LIGHTS SYSTEM VIO/BLK WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE YEL/BLK WIRE YEL/WHT WIRE

BLK WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BRAKE FLUID LEVEL SWITCH BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/WHT WIRE CAN L CAN-H COMPUTER DATA LINES SYSTEM DRIVER SEAT BELT BUCKLE SWITCH DRIVER SEAT POSITION SWITCH ELECTRIC PARKING BRAKE SWITCH ELECTRONIC IGNITION SWITCH CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT FRONT SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT FUSE 111 FUSE 128 FUSE 224 FUSE 318 GRN/WHT WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER CONTROL UNIT LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR LOCK NCA WIRE ORG/GRN WIRE PNK WIRE PNK/RED WIRE PNK/VIO WIRE PNK/WHT WIRE REAR SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE SIG SIG (1) SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT VIO WIRE VIO/WHT WIRE WHT WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLK/BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE CAN L CAN-H COMPUTER DATA LINES SYSTEM ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT FLEX BP FUSE 21 GRN WIRE GRN/WHT WIRE GRY/BLU WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL UNIT LEFT ELECTRIC PARKING BRAKE ACTUATOR MOTOR PNK FLEX BM WIRE PNK SIG WIRE PNK WIRE RED WIRE RED/WHT WIRE RIGHT ELECTRIC PARKING BRAKE ACTUATOR MOTOR SIG WHT WIRE YEL/BLK WIRE