Mercedes-Benz GLC-class X253 (2015-2019) drivetrain control unit Wiring diagrams

A/C BUTTON A/C, RESIDUAL HEAT ON/OFF BUTTON AIR DISTRIBUTION BUTTON AIR RECIRCULATION MODE BUTTON BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAN B H CAN B L CAN HMI H CAN HMI L CHARGE AIR TEMPERATURE SENSOR DOWNSTREAM OF THROTTLE VALVE CHARGE AIR TEMPERATURE SENSOR UPSTREAM OF THROTTLE VALVE CLIMATE CONTROL MENU BUTTON CLIMATE CONTROL MENU, RESIDUAL HEAT ON/OFF BUTTON CLIMATE CONTROL OPERATING UNIT (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM COOLANT LEVEL SWITCH COOLANT TEMPERATURE GAUGE COOLANT TEMPERATURE SENSOR COOLANT TEMPERATURE WARNING LAMP COOLANT THERMOSTAT HEATING ELEMENT DEFROSTING BUTTON DRIVETRAIN CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX ENGINE CONTROLS SYSTEM ENGINE FUSE, RELAY MODULE FAN MOTOR (BEHIND RADIATOR) FRONT AUTO BUTTON FRONT BLOWER BUTTON FRONT SAM CONTROL UNIT FUSE 101 FUSE 120 FUSE 209 FUSE 315 FUSE 326 FUSE 7 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ HOT W/ CPC RELAY ENERGIZED HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT AIR DISTRIBUTION BUTTON LEFT FUSE, RELAY MODULE LEFT TEMPERATURE SELECTION BUTTON ME-SFI (ME) CONTROL UNIT OUTSIDE TEMPERATURE SENSOR OVERHEAD CONTROL PANEL CONTROL UNIT POWER DISTRIBUTION SYSTEM PURGE CONTROL VALVE PWR-1 RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RBA-1 REAR WINDOW HEATER BUTTON RED WIRE RED/GRN WIRE RED/WHT WIRE REFRIGERANT COMPRESSOR MAGNETIC CLUTCH REFRIGERANT COMPRESSOR REGULATION VALVE REFRIGERANT COMPRESSOR W/ MAGNETIC CLUTCH REG 30 RELAY ENERGIZED RIGHT A-PILLAR FUSE BOX RIGHT AIR DISTRIBUTION BUTTON RIGHT TEMPERATURE SELECTION BUTTON SIG STATIONARY HEATER BUTTON SYNC BUTTON VIO/YEL WIRE YEL WIRE YEL/WHT WIRE

BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE CAN B H CAN B L CAN B L RBA-1 CAN C H CAN C L CAN HMI H CAN HMI L CLIMATE CONTROL CONTROL UNIT COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP COOLANT LEVEL SWITCH COOLANT TEMPERATURE GAUGE COOLANT TEMPERATURE SENSOR COOLANT TEMPERATURE WARNING LAMP COOLANT THERMOSTAT HEATING ELEMENT DRIVETRAIN CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX ENGINE CONTROLS SYSTEM ENGINE FUSE, RELAY MODULE FAN MOTOR (BEHIND RADIATOR) FRONT SAM CONTROL UNIT FUSE 101 FUSE 120 FUSE 207 FUSE 315 FUSE 7 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ HOT W/ CPC RELAY ENERGIZED INSTRUMENT CLUSTER INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT FUSE, RELAY MODULE ME-SFI (ME) CONTROL UNIT OVERHEAD CONTROL PANEL CONTROL UNIT PURGE CONTROL VALVE PWR-1 RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE REG RELAY ENERGIZED RIGHT A-PILLAR FUSE BOX SIG SIG GND TMOT WAPU+ WHT/BLU WIRE YEL WIRE YEL/WHT WIRE

BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN H H CAN H L CAN HMI H CAN HMI L CAN PER H CAN PER L DISTRONIC ELECTRIC CONTROLLER UNIT (BEHIND CENTER OF FRONT GRILLE) DRIVETRAIN CONTROL UNIT ELECTRICAL POWER STEERING CONTROL UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT FLEXRAY 1 BM FLEXRAY 1 BP FLEXRAY 1 BP PNK FLEXRAY 1 BM WIRE FLEXRAY 2 BM FLEXRAY 2 BP FLEXRAY 3 BP PNK FLEXRAY 3 BM WIRE FLEXRAY 3 BP PNK FLEXRAY 3 BP WIRE FLEXRAY 4 BM FLEXRAY 4 BP FLEXRAY 4 BP PNK FLEXRAY 1 BP WIRE FLEXRAY 4 BP PNK FLEXRAY 4 BM WIRE FRONT LONG RANGE RADAR SENSOR GRN WIRE GRN/WHT WIRE LEFT FRONT BUMPER RADAR SENSOR PNK FLEXRAY 4 BM WIRE PNK WIRE PNK/WHT WIRE RADAR SENSOR CONTROL UNIT RIGHT FRONT BUMPER RADAR SENSOR STEERING COLUMN MODULE CONTROL UNIT VIO WIRE VIO/WHT WIRE W/ ACTIVE PARK ASSIST W/ AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS W/ AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS, DISTRONIC PLUS, AIRMATIC W/ DISTRONIC PLUS W/O DISTRONIC PLUS W/O AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS, DISTRONIC PLUS, AIRMATIC YEL WIRE YEL/WHT WIRE

BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN I H CAN I L CAN PER H CAN PER L DRIVETRAIN CONTROL UNIT ENGINE SOUND CONTROL UNIT FUEL PUMP CONTROL UNIT FULLY INTEGRATED TRANSMISSION CONTROL UNIT GRN WIRE GRN/WHT WIRE INTELLIGENT SERVO MODULE FOR DIRECT SELECT ME-SFI (ME) CONTROL UNIT PANORAMIC SLIDING ROOF CONTROL MODULE PNK WIRE PNK/WHT WIRE SLIDING ROOF CONTROL MODULE TRANSMISSION OIL AUXILIARY OIL PUMP CONTROL UNIT W/ PANORAMIC SLIDING SUNROOF W/O PANORAMIC SLIDING SUNROOF YEL WIRE YEL/WHT WIRE

AUDIO/COMAND CONTROL PANEL BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BRN WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE CAN A H CAN A L CAN B H CAN B L CENTER LEFT FRONT PARKING SYSTEM DISTANCE SENSOR CENTER LEFT REAR PARKING SYSTEM DISTANCE SENSOR CENTER RIGHT FRONT PARKING SYSTEM DISTANCE SENSOR CENTER RIGHT REAR PARKING SYSTEM DISTANCE SENSOR COC COMPUTER DATA LINES SYSTEM DATA WE 2 DRIVER-SIDE INSTRUMENT PANEL BUTTON GROUP DRIVETRAIN CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT FEED FEED WE 2 FLEXRAY 1 BM FLEXRAY 1 BP FLEXRAY 1/2 BM FLEXRAY 1/2 BP FRONT SAM CONTROL UNIT FUSE 323 FUSE 331 FUSE 339 GND WE 2 GRN WIRE HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INNER LEFT FRONT PARKING SYSTEM DISTANCE SENSOR INNER LEFT REAR PARKING SYSTEM DISTANCE SENSOR INNER RIGHT FRONT PARKING SYSTEM DISTANCE SENSOR INNER RIGHT REAR PARKING SYSTEM DISTANCE SENSOR LEFT LOWER CONTROL PANEL LIN 1 OUTER LEFT FRONT PARKING SYSTEM DISTANCE SENSOR OUTER LEFT REAR PARKING SYSTEM DISTANCE SENSOR OUTER RIGHT FRONT PARKING SYSTEM DISTANCE SENSOR OUTER RIGHT REAR PARKING SYSTEM DISTANCE SENSOR PARKING SYSTEM BUTTON PARKING SYSTEM CONTROL UNIT (UNDER FRONT PASSENGER'S SEAT) PNK WIRE RBA-1 REAR PARKING SYSTEM INDICATOR RED/WHT WIRE RED/YEL WIRE RIGHT A-PILLAR FUSE BOX RIGHT LOWER CONTROL PANEL W/ AIRMATIC, AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS W/O AIRMATIC, AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS WHT WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

ADAPTIVE DAMPING SYSTEM CONTROL UNIT AIRMATIC CONTROL UNIT BLK WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L CAN PER H CAN PER L CAN-D H CAN-D L COMPUTER DATA LINES SYSTEM DIRECT SELECT INTELLIGENT SERVO MODULE DISTRONIC ELECTRIC CONTROLLER UNIT DRIVETRAIN CONTROL UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT FM 1, AM, CL (ZV), KEYLESS GO ANTENNA AMPLIFIER FR 1 BM FR 1 BP FR 2 BM FR 2 BP FR 3 BM FR 3 BP FR 4 BM FR 4 BP FR 5 BP FROM LEFT FUSE, RELAY MODULE (DIAGRAM 2 OF 6) FULLY INTEGRATED TRANSMISSION CONTROL UNIT GRN WIRE GRN/WHT WIRE GRY WIRE GRY/WHT WIRE HF SIG ISM LEFT FRONT DOOR CONTROL UNIT PARK PAWL CAPACITOR PNK FR 5 BM WIRE PNK WIRE RADAR SENSORS CONTROL UNIT RED/BLU WIRE RED/GRN WIRE SIG STEERING COLUMN MODULE CONTROL UNIT STEREO MULTI-FUNCTION CAMERA W/ ACTIVE LANE KEEPING ASSIST W/ AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS W/ AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS, DISTRONIC PLUS, AIRMATIC YEL WIRE YEL/WHT WIRE

1 BM 1 BP ACCELERATE, SET SWITCH ACCEPT/TERMINATE BLK WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BUTTON BUTTONS COMBINATION SWITCH CRUISE CONTROL LEVER DECELERATE, SET SWITCH DIRECT SELECT LEVER DISTRONIC CONTROL DRIVETRAIN CONTROL UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FLEXRAY FLEXRAY 1 BM FLEXRAY 1 BP FOR SETTING FUSE 210 FUSE 329 GRN WIRE HEADLAMP FLASHER/HIGH BEAM SWITCH HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT FUSE, RELAY MODULE MUTE FUNCTION NCA WIRE OFF SWITCH PHONE CALL PNK WIRE RED WIRE RED/BLK WIRE RESUME FROM MEMORY SWITCH RIGHT A-PILLAR FUSE BOX RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SPECIFIC FUNCTIONS, STEERING COLUMN ADJUSTMENT, STEERING WHEEL HEATER SWITCH STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) STEERING WHEEL ANGLE SENSOR SUPPLEMENTAL RESTRAINTS SYSTEM TURN SIGNAL LAMPS SWITCH VIO/YEL WIRE VOLUME CONTROL W/ ACTIVE LANE KEEPING ASSIST W/ INTELLIGENT CRUISE CONTROL W/O INTELLIGENT CRUISE CONTROL WINDSHIELD WASHER SYSTEM SWITCH WIPE SWITCH

BLK WIRE BLK/BLU WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/YEL WIRE CAN PER H CAN PER L COMPUTER DATA LINES SYSTEM DRIVETRAIN CONTROL UNIT DRIVETRAIN CONTROL UNIT (LEFT FRONT OF RIGHT FRONT FOOTWELL) FLEXRAY 1 BM FLEXRAY 1 BP FUSE 315 GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE HOT AT ALL TIMES LEFT EXHAUST FLAP ACTUATOR MOTOR LOW TEMPERATURE COOLANT CIRCUIT TEMPERATURE SENSOR 2 LOW-TEMPERATURE CIRCUIT TEMPERATURE SENSOR PNK WIRE PNK/RED WIRE RED/GRN WIRE RED/PNK WIRE RED/WHT WIRE RIGHT A-PILLAR FUSE BOX SIG VERS WHT WIRE