Mercedes-Benz GLC-class X253 facelift (2019-2023) w/ fuel cell retrofitting Wiring diagrams

BLK WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/RED WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN B H CAN B L CENTRAL LOCKING MOTOR COMPUTER DATA LINES SYSTEM FUSE 408 FUSE 477 GRN WIRE GRY WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT FRONT DOOR EXIT, WARNING LAMP LEFT REAR DOOR AMBIANCE ILLUMINATION LEFT REAR DOOR CONTROL UNIT LEFT REAR DOOR EXIT, WARNING LAMP LEFT REAR DOOR EXTERIOR DOOR HANDLE ILLUMINATION LEFT REAR DOOR HANDLE AMBIANCE ILLUMINATION LEFT REAR DOOR HANDLE ILLUMINATION LEFT REAR DOOR LOCK MOT GND/(+) MOT GND/(+) 31 MOT- ORG/ WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK/BLU WIRE PNK/VIO WIRE REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RIGHT FRONT DOOR LOCK ROTARY TUMBLER SWITCH SIG SIG (+) HECKD SIG GND SIG HECKR TANK CAP CENTRAL LOCKING ACTUATOR TRUNK LID/LIFTGATE LOCK W/ FUEL CELL RETROFITTING W/ INTERIOR LIGHTS PACKAGE W/O FUEL CELL RETROFITTING YEL WIRE

BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/RED WIRE CAN B H CAN B L CENTRAL LOCKING MOTOR COMPUTER DATA LINES SYSTEM FUSE 301 303 GRN WIRE GRY WIRE GRY/RED WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED MOT GND (+) GND MOT GND/(+) ORG/ WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK/BLU WIRE PNK/VIO WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RIGHT FRONT DOOR AMBIANCE ILLUMINATION RIGHT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR DOOR HANDLE ILLUMINATION RIGHT FRONT DOOR EXIT, WARNING LAMP RIGHT FRONT DOOR EXTERIOR DOOR HANDLE ILLUMINATION RIGHT FRONT DOOR HANDLE AMBIANCE ILLUMINATION RIGHT REAR DOOR AMBIANCE ILLUMINATION RIGHT REAR DOOR CONTROL UNIT RIGHT REAR DOOR EXIT, WARNING LAMP RIGHT REAR DOOR EXTERIOR DOOR HANDLE ILLUMINATION RIGHT REAR DOOR HANDLE AMBIANCE ILLUMINATION RIGHT REAR DOOR HANDLE ILLUMINATION RIGHT REAR DOOR LOCK ROTARY TUMBLER SWITCH SIG SIG GND VIO WIRE W/ FUEL CELL RETROFITTING W/ INTERIOR LIGHTS PACKAGE W/O FUEL CELL RETROFITTING YEL WIRE

BLU WIRE BRN WIRE CAN-D H CAN-D L CARSHARING CONTROL UNIT DIAGNOSTIC CONNECTOR DRIVER-SIDE FUSE, RELAY MODULE ELECTRONIC IGNITION SWITCH CONTROL UNIT ETH (+) ETHERNET ETH (-) FUSE 204 FUSE 323 GRN WIRE GRY WIRE GRY/WHT WIRE HEAD UNIT (CENTER OF DASH) HERMES CONTROL UNIT HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED ORG/ WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE RED/GRN WIRE W/ FUEL CELL RETROFITTING W/ HERMES LTE W/O FUEL CELL RETROFITTING W/O HERMES LTE WAKEUP WHT/BLU WIRE

2.0L TURBO AIR BODY CONTROL PLUS CONTROL UNIT ALTERNATING CURRENT CHARGER FOR HIGH VOLTAGE BATTERY BACKUP CAMERA CONTROL UNIT BRN WIRE COOLANT CIRCULATION PUMP ELECTRIC COOLANT PUMP ELECTRONIC DIFFERENTIAL CONTROL UNIT EXHAUST FLAP ACTUATOR MOTOR HIGH VOLTAGE BATTERY MODULE KEYLESS-GO CONTROL UNIT LEFT EXHAUST FLAP SWITCHOVER VALVE LEFT FANFARE HORN LEFT LUGGAGE COMPARTMENT LAMP LEFT LUGGAGE COMPARTMENT REAR BACKREST RELEASE BUTTON LEFT REAR BACKREST INCLINATION SWITCH LEFT REAR BACKREST RELEASE ACTUATOR LEFT REAR LAMP UNIT LEFT, RIGHT ROOF LIGHT BAR ELECTRICAL CONNECTOR LOW TEMPERATURE CIRCUIT CIRCULATION PUMP 1 LOW TEMPERATURE CIRCUIT CIRCULATION PUMP 2 LOW TEMPERATURE CIRCUIT SWITCHOVER VALVE LOW TEMPERATURE CIRCUIT SWITCHOVER VALVE 2 LUGGAGE COMPARTMENT SOCKET MERCEDES-BENZ INTELLIGENT DRIVE CONTROL UNIT NCA WIRE PARKING SYSTEM CONTROL UNIT POWER ELECTRONICS CONTROL UNIT PWR-2 REAR END SOUND GENERATOR REAR SAM CONTROL UNIT REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR RIGHT FRONT LAMP UNIT RIGHT REAR LAMP UNIT SOUND GENERATOR CONTROL UNIT SOUND SYSTEM AMPLIFIER CONTROL UNIT SPECIAL SIGNAL SYSTEM CONTROL UNIT SPECIAL VEHICLE MULTI-FUNCTION CONTROL UNIT (SVMCU (MSS)) SUBWOOFER AMPLIFIER TACHOGRAPH ELECTRICAL CONNECTOR TAILGATE CONTROL UNIT TIRE PRESSURE MONITOR CONTROL UNIT TRAILER RECOGNITION CONTROL UNIT TRAILER SOCKET (7-PIN) TRANSMISSION OIL COOLING COOLANT CIRCULATION PUMP TRUNK LID/LIFT GATE FULLY ELECTRIC TRAILER HITCH SWITCH TWO WAY RADIO CONNECTING POINT 1 VEHICLE SOCKET ELECTRICAL CONNECTOR W/ FUEL CELL RETROFITTING WHT WIRE

2.0L TURBO ACTIVE BRAKE ASSIST CONTROLLER UNIT ALARM SIREN BATTERY DISCONNECT SWITCH RELAY BLK WIRE BLUE LIGHT SEPARATION POINT BRN WIRE CENTER REAR SEAT BELT BUCKLE SWITCH CONTROL UNIT OF NOX SENSOR UPSTREAM OF DIESEL OXIDATION CATALYTIC CONVERTER DC/DC CONVERTER CONTROL UNIT ELECTRIC BRAKE CONTROL ELECTRICAL CONNECTOR ENGINE COMPARTMENT PREFUSE BOX FAN MOTOR FRONT CIGARETTE LIGHTER W/ ASHTRAY ILLUMINATION FRONT SAM CONTROL UNIT FUEL PUMP CONTROL UNIT HERMES CONTROL UNIT HYBRID CAN (CAN L) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR LEFT ACTIVE ENGINE MOUNT LEFT FRONT DOOR CONTROL UNIT ME-SFI (ME) CONTROL UNIT MONO MULTI-FUNCTION CAMERA PASSENGER SIDE ENGINE HOOD CONTACT SWITCH RADOME HEATER REAR SAM CONTROL UNIT REAR SEAT HEATERS CONTROL UNIT REAR USB ELECTRICAL CONNECTOR RIGHT ACTIVE ENGINE MOUNT RIGHT FRONT BRAKE WEAR SENSOR RIGHT REAR BACKREST INCLINATION SWITCH RIGHT REAR BACKREST RELEASE ACTUATOR RIGHT REAR BRAKE WEAR SENSOR ROOF LIGHT BAR SEPARATION POINT SHORT, LONG-RANGE RADAR SENSOR STATIONARY HEATER FUEL PUMP STATIONARY HEATER RADIO REMOTE CONTROL RECEIVER STATIONARY HEATER SWITCHOVER VALVE STATIONARY HEATER UNIT STEREO MULTI-FUNCTION CAMERA TELEPHONE, STATIONARY HEATER ANTENNA CHANGEOVER SWITCH TWO-WAY RADIO SWITCH USER INTERFACE CAN (CAN HMI) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR VOLTAGE DIP LIMITER W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING

AUDIO EQUIPMENT FAN MOTOR AUDIO/ COMAND DISPLAY BOOSTER BLOWER ELECTRONIC BLOWER REGULATOR BRN WIRE BRN/BLK WIRE BRN/YEL WIRE CARSHARING CONTROL UNIT CIRCUIT 31 POTENTIAL DISTRIBUTOR 1 CIRCUIT 31 POTENTIAL DISTRIBUTOR 2 CLIMATE CONTROL OPERATING UNIT CLIMATE CONTROL UNIT CYLINDER 1 IGNITION COIL CYLINDER 2 IGNITION COIL CYLINDER 3 IGNITION COIL CYLINDER 4 IGNITION COIL DIAGNOSTIC CONNECTOR DRIVER SIDE ENGINE HOOD CONTACT SWITCH DRIVER-SIDE INSTRUMENT PANEL BUTTON GROUP DRIVETRAIN SENSOR CAN (CAN I) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR ELECTRIC COOLANT PUMP ELECTRIC PARKING BRAKE SWITCH ELECTRONIC BLOWER CONTROLLER ELECTRONIC STABILITY PROGRAM CONTROL UNIT FAN MOTOR HEAD-UP DISPLAY INSTRUMENT CLUSTER KEYLESS GO START/STOP BUTTON LEFT FRONT FOOTWELL AMBIANCE ILLUMINATION LEFT INTERIOR CAN (CAN B) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR ME-SFI (ME) CONTROL UNIT NCA WIRE PERIPHERALS CAN (CAN PER) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR RIGHT FRONT FOOTWELL AMBIANCE ILLUMINATION STARTER ALTERNATOR COOLANT PUMP STEERING COLUMN MODULE CONTROL UNIT STOWAGE COMPARTMENT ILLUMINATION TELEMATICS CAN (CAN A) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR TOP OF ENGINE) UPPER CONTROL PANEL CONTROL UNIT W/ AMBIANCE ILLUMINATION, INTERIOR LIGHTS PACKAGE W/ FUEL CELL RETROFITTING WHT WIRE

AUDIO/COMAND DISPLAY BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE CAN A H CAN A L CAN C H CAN C L CAN HMI H CAN HMI L FUEL PUMP CONTROL UNIT FULLY INTEGRATED TRANSMISSION CONTROL UNIT HAND MOTION SENSOR HEAD UNIT (CENTER OF DASH) LEFT LOWER CONTROL PANEL ME-SFI (ME) CONTROL UNIT MOBILE PHONE CRADLE CONTROL UNIT RIGHT LOWER CONTROL PANEL SOUND SYSTEM AMPLIFIER CONTROL UNIT TELEMATICS CAN (CAN A) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR TOUCHPAD UPPER CONTROL PANEL CONTROL UNIT VIO WIRE VIO/WHT WIRE W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING YEL WIRE YEL/WHT WIRE

AUDIO H AUDIO L+ BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/WHT WIRE CENTER LEFT REAR PARKING SYSTEM DISTANCE SENSOR CENTER RIGHT REAR PARKING SYSTEM DISTANCE SENSOR COMPUTER DATA LINES SYSTEM DRIVER-SIDE REAR FUSE, RELAY MODULE ELECTRONIC IGNITION SWITCH CONTROL UNIT FLEX-E BP FLEX-E BP PNK FLEX-E BM WIRE FUSE 202 FUSE 468 FUSE 477 GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INNER LEFT REAR PARKING SYSTEM DISTANCE SENSOR INNER RIGHT REAR PARKING SYSTEM DISTANCE SENSOR OUTER LEFT REAR PARKING SYSTEM DISTANCE SENSOR OUTER RIGHT REAR PARKING SYSTEM DISTANCE SENSOR PARKING SYSTEM CONTROL UNIT PNK FLEX-E BM WIRE PNK WIRE REAR FUSE, RELAY MODULE RED WIRE RED/WHT WIRE SIG W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING WHT/RED WIRE WHT/YEL WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

AUX/RVC BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CENTER LEFT FRONT PARKING SYSTEM DISTANCE SENSOR CENTER RIGHT FRONT PARKING SYSTEM DISTANCE SENSOR COC COMPUTER DATA LINES SYSTEM DRIVER-SIDE INSTRUMENT PANEL BUTTON GROUP FRONT SAM CONTROL UNIT FUSE 4 HEAD UNIT HECKD HOT AT ALL TIMES HSVL INNER LEFT FRONT PARKING SYSTEM DISTANCE SENSOR INNER RIGHT FRONT PARKING SYSTEM DISTANCE SENSOR LIN 1 MOT GND/(+) MULTIPLE FUSE 3 NCA WIRE OUTER LEFT FRONT PARKING SYSTEM DISTANCE SENSOR OUTER RIGHT FRONT PARKING SYSTEM DISTANCE SENSOR PARKING SYSTEM SPEAKER PASSENGER-SIDE A-PILLAR FUSE BOX REAR CAMERA COVER MOTOR RED WIRE RED/WHT WIRE RVC SHD SIG W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

30-2 AUDIO H AUDIO L+ BLK WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/ORG WIRE BLU/RED WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM COUPE COUPE SUV DRIVER TRUNK LID/ LIFTGATE CONTROL BUTTON EASY-PACK LIFTGATE ELECTRIC MOTOR FUSE 406 FUSE 435 FUSE 475 FUSE 477 GRN WIRE GRN/WHT WIRE HALL SENSOR HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT FRONT DOOR CONTROL UNIT LOCK MOTOR M+ (-) MAIN CATCH SWITCH MOT- NCA WIRE REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE SAFETY CATCH SWITCH SIG SIG (+) HECKD SIG (1) SIG (2) TAILGATE CONTROL UNIT TAILGATE LOCKING ELEMENT TRUNK LID/ LIFTGATE CONTROL BUTTON TRUNK LID/ LIFTGATE EXTERNAL OPERATION SWITCH TRUNK LID/LIFTGATE CONTROL DRIVE UNIT TRUNK LID/LIFTGATE CONTROL WARNING BUZZER TRUNK LID/LIFTGATE LOCK VIO WIRE W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING