Mercedes-Benz GLC-class Coupe C253 facelift (2019-2023) red/yel Wiring diagrams

30 UNG AIR BODY CONTROL COMPRESSOR AIR BODY CONTROL PRESSURE RELIEF VALVE AIR BODY CONTROL UNIT AIRMATIC RELAY BATTERY DISCONNECT BLK WIRE BLK/BRN WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BRN WIRE CAN A H CAN A L COMPUTER DATA LINES SYSTEM ELECTRIC MOTOR ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE FUSE, RELAY MODULE FLEX-E BM FLEX-E BP FUSE 114 FUSE 132 FUSE 314 GRN WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE HOT W/ LEFT FRONT LEFT FRONT AXLE DAMPING VALVE UNIT LEFT LOWER CONTROL PANEL ORG/ WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE REAR END LOWERING SWITCH RED WIRE RED/ORG WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT LOWER CONTROL PANEL RIGHT REAR LEVEL SENSOR SIG SIG GND SOLENOID SWITCH RELAY ENERGIZED TOUCHPAD VAL 1 H VAL 1 L VALVE 1 VALVE 2 VIO WIRE VIO/BLK WIRE VIV 1 H VIV 1 L WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/WHT WIRE

BLK WIRE BLK/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM ELECTRIC COOLANT PUMP ELECTRIC REFRIGERANT COMPRESSOR FAN MOTOR (BEHIND RADIATOR) FRONT SAM CONTROL UNIT FUSE 3 FUSE 305 FUSE 315 FUSE 6 GRN WIRE GRN/VIO WIRE GRY/RED WIRE HIGH-VOLTAGE DISCONNECT DEVICE HIGH-VOLTAGE POWER DISTRIBUTOR HOT AT ALL TIMES HV- ILK ILK PNK ILK WIRE MULTIPLE FUSE 1 MULTIPLE FUSE 2 MULTIPLE FUSE 3 NCA WIRE OUTSIDE TEMPERATURE SENSOR PASSENGER- SIDE A-PILLAR BOX PNK WIRE PNK/BLK WIRE PNK/GRN WIRE POWER ELECTRONICS CONTROL UNIT RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RBA-1 RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE REFRIGERANT COMPRESSOR REFRIGERANT COMPRESSOR MAGNETIC CLUTCH REFRIGERANT COMPRESSOR REGULATION VALVE SHD SIG STATIONARY HEATER RADIO REMOTE CONTROL RECEIVER TELEPHONE ANTENNA SPLITTER TELEPHONE, STATIONARY HEATER ANTENNA CHANGEOVER SWITCH VIO/YEL WIRE W/ FUEL CELL RETROFITTING W/ WIRELESS PHONE CHARGING W/O FUEL CELL RETROFITTING W/O WIRELESS PHONE CHARGING WHT WIRE YEL WIRE

BLU WIRE BLU/WHT WIRE BRN WIRE BRN/YEL WIRE CIRCUIT 31 POTENTIAL DISTRIBUTOR 1 COMPUTER DATA LINES SYSTEM COOLANT PUMP RELAY COOLANT TEMPERATURE SENSOR COOLANT THERMOSTAT HEATING ELEMENT ELECTRIC COOLANT PUMP 2 ENGINE COMPARTMENT PREFUSE BOX FUSE 104 FUSE 107 FUSE 5 FUSE 9 GRN/YEL WIRE GRY/YEL WIRE HOT W/ HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT FRONT DOOR CONTROL UNIT LEFT FRONT SEAT ADJUSTMENT SWITCH GROUP LEFT FRONT SEAT CLIMATE CONTROL SWITCH GROUP ME-SFI (ME) CONTROL UNIT POWER SUPPLY POTENTIAL DISTRIBUTOR 2 POWER SUPPLY POTENTIAL DISTRIBUTOR 3 RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RELAY ENERGIZED SIG VIO WIRE W/ MEMORY W/O MEMORY WHT WIRE

AUDIO H AUDIO L+ BLK WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BRN WIRE CAN A H CAN A L CAN L H CAN L L CAN-D H CAN-D L COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM ANTENNA 1 GPS GRY WIRE GRY/BLK WIRE GRY/WHT WIRE LEFT LOWER CONTROL PANEL MIC H MIC-L MUTE NCA WIRE PNK/BLK WIRE RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT LOWER CONTROL PANEL SHIELD SOUND AMPLIFIER CIRCUIT SUPPLEMENTAL RESTRAINTS SYSTEM TEL TELEPHONE ANTENNA SPLITTER TOUCHPAD UPPER CONTROL PANEL CONTROL UNIT VIO WIRE WHT WIRE WHT/ORG WIRE YEL WIRE YEL/WHT WIRE

BLU WIRE BLU/WHT WIRE BRN WIRE BRN/YEL WIRE CIRCUIT 31 POTENTIAL DISTRIBUTOR 1 COMPUTER DATA LINES SYSTEM COOLANT PUMP RELAY COOLANT TEMPERATURE SENSOR ELECTRIC COOLANT PUMP ELECTRIC COOLANT PUMP 2 ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FUSE 104 FUSE 107 FUSE 315 FUSE 5 FUSE 9 GRN/YEL WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED ME-SFI (ME) CONTROL UNIT PASSENGER-SIDE A-PILLAR FUSE BOX POWER SUPPLY POTENTIAL DISTRIBUTOR 2 RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RELAY ENERGIZED SIG SIG_GND WHT 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

ACTIVE LANE KEEPING ASSIST BUTTON AUXILIARY HEATER HEATING ELEMENT BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN PER H CAN PER L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE DRIVER-SIDE INSTRUMENT PANEL BUTTON GROUP FRONT SAM CONTROL UNIT FUSE 211 GRN WIRE GRN/WHT WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LIN 1 LIN 1 COC MONO MULTI-FUNCTION CAMERA RED/BRN WIRE RED/YEL WIRE SIG YEL 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

AUXILIARY HEATER HEATING ELEMENT BRN WIRE DRIVER-SIDE FUSE, RELAY MODULE ELECTRONIC IGNITION SWITCH CONTROL UNIT FLEX-E BM FLEX-E BP FUSE 211 GRN WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED PNK WIRE RED/BRN WIRE RED/YEL WIRE SIG STEREO MULTI-FUNCTION CAMERA

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