Mercedes-Benz GLC-class Coupe C253 facelift (2019-2023) (left kick panel) Wiring diagrams

BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BRAKE FLUID LEVEL SWITCH BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN HMI H CAN HMI L COC COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FRONT SAM CONTROL UNIT (LEFT END OF DASH) FUSE 200 FUSE 477 GRN/GRY WIRE GRN/RED WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/ORG WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INSTRUMENT CLUSTER PEDAL ANGLE SENSOR REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RIGHT FRONT AXLE RPM SENSOR RIGHT FRONT BRAKE WEAR SENSOR RIGHT REAR AXLE RPM SENSOR RIGHT REAR BRAKE WEAR SENSOR SIG SIG GND WHT WIRE YEL WIRE YEL/WHT WIRE

AIR QUALITY SENSOR BOOSTER BLOWER ELECTRONIC BLOWER REGULATOR BRN WIRE BRN/VIO WIRE BRN/WHT WIRE DEFROSTER/ FOOTWELL/ CENTER AIR VENT FLAP ACTUATOR ELECTRONIC BLOWER CONTROLLER FRESH AIR/RAM AIR/AIR RECIRCULATION FLAP ACTUATOR MOTOR GLOVE LAMP BOX GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/RED WIRE IONIZER LEFT A-PILLAR AIR QUALITY ACTUATOR MOTOR LEFT BLENDING AIR FLAP ACTUATOR LEFT SIDE AIR VENT AIR OUTLET TEMPERATURE SENSOR NCA WIRE PERFUME ATOMIZER GENERATOR PNK WIRE RED WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE REFRIGERANT PRESSURE SENSOR RIGHT A-PILLAR AIR DISTRIBUTION ACTUATOR MOTOR RIGHT BLENDING AIR FLAP ACTUATOR RIGHT END OF DASH) RIGHT SIDE AIR VENT AIR OUTLET TEMPERATURE SENSOR VIO/YEL WIRE YEL WIRE YEL/VIO WIRE

AUDIO H AUDIO L+ AUDIO/COMAND DISPLAY BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE CAN A H CAN A L CENTER INSTRUMENT PANEL SPEAKER COMPUTER DATA LINES SYSTEM FRONT CENTER CONSOLE USB CONNECTOR FUSE 202 GRN WIRE GRY WIRE GRY/BLK WIRE HEAD UNIT (CENTER OF DASH) HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED HSVL MOST MULTIMEDIA CONNECTION UNIT MULTIPLE FUSE 1 MULTIPLE FUSE 2 MULTIPLE FUSE 3 NCA WIRE ORG/ WIRE PASSENGER-SIDE A-PILLAR FUSE BOX RED WIRE RED/WHT WIRE RIGHT FOOTWELL WOOFER SHD SHD CID/PIP SHIELD SHIELD EMOST SHIELD MM-BOX SIG SOUND AMPLIFIER CIRCUIT SUBWOOFER AMPLIFIER TV CARD READER (IF EQUIPPED) USB USB (+) 4 USB CI+ USB H USB DATA H USB DATA L USB GND USB H USB L USB RUI H USB RUI L VIO WIRE VIO/BLK WIRE W/ MIDLINE SOUND SYSTEM W/ WIRELESS MOBILE PHONE CHARGING W/O MIDLINE SOUND SYSTEM W/O WIRELESS MOBILE PHONE CHARGING WAKE-UP WHT/ORG WIRE

15 M ANTI-LOCK BRAKES SYSTEM COOLING FANS SYSTEM ANTI-THEFT SYSTEM ANTI-THEFT SYSTEM ENGINE CONTROLS SYSTEM BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE COOLING FANS SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ENGINE CONTROLS SYSTEM ENGINE FUSE, RELAY MODULE FRONT SAM CONTROL UNIT (LEFT END OF DASH) FUSE 123 FUSE 200 FUSE 201 GRN WIRE GRY/BLU WIRE GRY/PNK WIRE GRY/VIO WIRE GRY/YEL WIRE HEADLIGHTS SYSTEM HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS HORNS SYSTEM HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED PNK/RED WIRE POWER DISTRIBUTION SYSTEM PWR-1 PWR-2 RBA-1 RED WIRE RED/WHT WIRE RED/YEL WIRE REL GND REL/O/(+) REL/O/GND SIG STARTING/CHARGING SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TFL TSI R (+) YEL 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

BLK WIRE BLK/WHT WIRE BLU 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 DCS ELECTRONIC IGNITION SWITCH CONTROL UNIT FLEX-E BP FLEX-E BP PNK FLEX-E BM WIRE FROM BATTERY DISCONNECT SWITCH RELAY (DIAGRAM 1 OF 9) FROM ENGINE FUSE, RELAY MODULE (DIAGRAM 9 OF 9) FROM PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 6 OF 9) FULLY INTEGRATED TRANSMISSION CONTROL UNIT GRN WIRE GRN/WHT WIRE GRY WIRE GRY/WHT WIRE KEYLESS GO START/STOP BUTTON KEYLESS-GO CONTROL UNIT LEFT FRONT DOOR CONTROL UNIT ORG/ WIRE P NOT PARK PAWL CAPACITOR PNK FLEX-E BM WIRE RED WIRE RED/BLU WIRE RED/GRN WIRE REL C (+) SIG (1) SIG (2) SIG 3 WAKE-UP WHT WIRE YEL WIRE YEL/WHT WIRE

BASIC BBV VR BCL SW DR(-) BLK WIRE BLU WIRE BRAKE FLUID LEVEL SWITCH BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN B L RBA-1 CAN H H CAN H L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DRIVER SEAT BELT BUCKLE SWITCH DRIVER SEAT POSITION DETECTION SWITCH DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX FRONT SAM CONTROL UNIT FUSE 1 FUSE 200 FUSE 312 FUSE 316 FUSE 322 FUSE 477 GRN WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR LOCK LEFT FRONT DOOR ROTARY TUMBLER SWITCH PASSENGER-SIDE A-PILLAR FUSE BOX PWR-1 REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT BRAKE WEAR SENSOR RIGHT REAR BRAKE WEAR SENSOR SIG SIG 3 SIG 4 SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT VIO WIRE VIO/WHT WIRE W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING WHT WIRE WHT/GRY WIRE YEL WIRE YEL/WHT WIRE

58 D ALTERNATOR BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN C H CAN C L COMPUTER DATA LINES SYSTEM ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE FUSE, RELAY MODULE FRONT SAM CONTROL UNIT FULLY INTEGRATED TRANSMISSION CONTROL UNIT FUSE 113 FUSE 127 FUSE 13 HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED KEYLESS GO START/STOP BUTTON LEFT VEHICLE-END, ENGINE-END BUSBAR STUD 4 LIN ME-SFI (ME) CONTROL UNIT NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY ORG/ WIRE RED WIRE RIGHT VEHICLE-END, ENGINE-END BUSBAR STUD 2 SIG SIG (1) SIG (2) SIG 3 STARTER STARTER CIRCUIT 50 RELAY VIO WIRE VIO/WHT WIRE VOLTAGE DIP LIMITER WHT WIRE YEL/RED WIRE

BASE BRN WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM FUSE 322 FUSE 467 HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INSTRUMENT CLUSTER LEFT FRONT TIRE PRESSURE SENSOR LEFT REAR TIRE PRESSURE SENSOR PASSENGER-SIDE A-PILLAR FUSE BOX REAR FUSE, RELAY MODULE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT TIRE PRESSURE SENSOR RIGHT REAR TIRE PRESSURE SENSOR TIRE PRESSURE MONITOR CONTROL UNIT W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING YEL WIRE YEL/WHT WIRE