Mercedes-Benz GLC-class Coupe C254 (2023-2024) rear signal acquisition, actuation module control unit Wiring diagrams

AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM AIR CONDITIONING, COOLING FANS SYSTEMS ANTI-LOCK BRAKES, INSTRUMENT CLUSTER SYSTEMS BLK WIRE BLU WIRE BLU/ORG WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE C REL G (-) COMPUTER DATA LINES SYSTEM FRONT SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT FUSE 114 FUSE 129 FUSE 209 GRN/WHT WIRE GRY/BLU WIRE GRY/RED WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER SYSTEM PNK/GRN WIRE PNK/RED WIRE POWER DISTRIBUTION SYSTEM REAR SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT RED/BLK WIRE RED/WHT WIRE SEATS SYSTEM SIG SUPPLEMENTAL RESTRAINTS SYSTEM WAKE-UP WHT WIRE WIPER/WASHER SYSTEM YEL/WHT WIRE

BRN WIRE COOLANT DIRECTIONAL CONTROL VALVE DRIVER KNEE BAG SQUIB ELECTRIC PARKING BRAKE SWITCH EXHAUST FLAP ACTUATOR MOTOR HORN INSTRUMENT CLUSTER CONTROL UNIT INSTRUMENT CLUSTER DISPLAY INTERIOR TEMPERATURE SENSOR LEFT FRONT LAMP UNIT LEFT LUGGAGE COMPARTMENT REAR BACKREST RELEASE BUTTON LEFT REAR OUTER LAMP UNIT LEFT REAR SHORT RANGE RADAR SENSOR LOW TEMPERATURE CIRCUIT CIRCULATION PUMP 2 LOW-TEMPERATURE CIRCUIT CIRCULATION PUMP 3 PARKING SYSTEM CONTROL UNIT REAR SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT REAR SWITCHING MODULE RIGHT FRONT LAMP UNIT ROOF ANTENNA MODULE START/STOP BUTTON STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS TELEMATICS SERVICES COMMUNICATION MODULE TRUNK/LOAD COMPARTMENT LAMP

BLU WIRE BRN WIRE BRN/VIO WIRE CAN L CAN-H COMPUTER DATA LINES SYSTEM FROM FUSE 335 (DIAGRAM 6 OF 9) FUSE 300 FUSE 301 FUSE 302 FUSE 303 FUSE 304 FUSE 305 FUSE 306 FUSE 307 FUSE 308 FUSE 309 FUSE 310 FUSE 311 FUSE 902 FUSE 906 FUSE 923 FUSE 924 GRN/WHT WIRE INTEGRATED STARTER ALTERNATOR POWER ELECTRONICS KL 30 KL 40 LK 31 LK 41 MULTIPLE FUSE 2 N/A NOT USED OVERHEAD CONTROL PANEL CONTROL UNIT PNK/VIO WIRE PNK/YEL WIRE PTC HEATER BOOSTER PYROFUSE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REAR SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT RED WIRE RED/BLK WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE ROOF ANTENNA MODULE SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT TIRE PRESSURE MONITOR CONTROL UNIT TO ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 8 OF 9) VIO WIRE

BRN WIRE BRN/BLK WIRE FUEL PUMP CONTROL UNIT FUSE 400 FUSE 401 FUSE 402 FUSE 403 FUSE 404 FUSE 405 FUSE 406 FUSE 407 FUSE 408 FUSE 409 FUSE 410 FUSE 411 FUSE 412 FUSE 413 FUSE 414 FUSE 415 FUSE 416 FUSE 417 FUSE 418 FUSE 419 FUSE 420 GRY/WHT WIRE HEATED REAR WINDOW RELAY LEFT REAR DOOR CONTROL UNIT N/A NOT USED POWER OUTLET RELAY REAR CUP HOLDER RELAY REAR SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT REAR WINDOW HEATER RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTROL UNIT SIG TO FUSE 430 (DIAGRAM 4 OF 9) TRUNK LID/ TAILGATE CONTROL SYSTEM CONTROL UNIT

FROM HEATED REAR WINDOW RELAY (DIAGRAM 3 OF 9) FUSE 421 FUSE 422 FUSE 423 FUSE 424 FUSE 425 FUSE 426 FUSE 430 FUSE 431 FUSE 432 FUSE 433 FUSE 436 FUSE 437 FUSE 438 FUSE 439 FUSE 440 FUSE 441 FUSE 442 FUSE 443 FUSE 444 FUSE 445 FUSE 446 FUSE 447 FUSE 448 FUSE 449 FUSE 450 FUSE 451 FUSE 452 FUSE 453 FUSE 454 FUSE 455 FUSE 456 FUSE 457 FUSE 458 FUSE 459 FUSE 460 FUSE 461 FUSE 462 FUSE 463 FUSE 464 FUSE 465 FUSE 466 FUSE 467 FUSE 468 FUSE 469 FUSE 470 FUSE 471 FUSE 472 FUSE 473 FUSE 474 FUSE 475 FUSE 476 FUSE 477 FUSE 478 FUSE 479 FUSE 480 FUSE 481 FUSE 482 LEFT REAR SHORT RANGE RADAR SENSOR N/A N/A N/A NOT USED PARKING SYSTEM CONTROL UNIT REAR SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT REAR SWITCHING MODULE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RIGHT REAR SHORT RANGE RADAR SENSOR TELEMATICS SERVICES COMMUNICATION MODULE

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

BRN WIRE CAN L CAN-H CENTER SEAT BACKREST LOCKING FUNCTION SWITCH COMPUTER DATA LINES SYSTEM FRONT SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT FUSE 209 FUSE 421 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT LUGGAGE COMPARTMENT REAR BACKREST RELEASE BUTTON LEFT REAR BACKREST RELEASE ACTUATOR PNK/BLK WIRE REAR SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT RED/BLK WIRE RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE RIGHT LUGGAGE COMPARTMENT REAR BACKREST RELEASE BUTTON RIGHT REAR BACKREST RELEASE ACTUATOR SIG

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

ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/RED WIRE BLU/BLK WIRE BLU/GRN WIRE BRN WIRE BRN/YEL WIRE EXTERIOR LIGHTS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM FRONT SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT FUSE 414 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES NAVIGATION SYSTEM REAR SIGNAL ACQUISITION, ACTUATION MODULE CONTROL UNIT RED/GRY WIRE SIG SUPPLEMENTAL RESTRAINTS SYSTEM VIO/GRN WIRE VIO/YEL WIRE WHT/BLU WIRE WHT/GRN WIRE YEL/GRN 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