Mercedes-Benz GLC-class Coupe C253 facelift (2019-2023) hot w/ engine compartment terminal 15 relay energized Wiring diagrams

BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/YEL WIRE BRAKE VACUUM SENSOR BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE CAN H H CAN H L COMPUTER DATA LINES SYSTEM ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FLEX-E BM FLEX-E BP FUSE 1 FUSE 129 FUSE 2 GRN WIRE GRN/BRN (OR BRN/GRY) WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/RED WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/ORG WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED LEFT ELECTRIC PARKING BRAKE ACTUATOR MOTOR LEFT FRONT AXLE RPM SENSOR LEFT REAR AXLE RPM SENSOR MOT GND/(+) MOT GND/(+) 31 MOT GND/(+) SIG ORG/BLU WIRE PNK WIRE PNK/GRN WIRE POWER ELECTRONICS CONTROL UNIT RED WIRE RED/BLU WIRE RED/WHT WIRE RIGHT ELECTRIC PARKING BRAKE ACTUATOR MOTOR SIG SIG (1) SIG (2) SIG 3 SIG 4 STOP LAMP SWITCH VIO WIRE VIO/GRN WIRE VIO/WHT WIRE W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING WHT WIRE WHT/YEL WIRE YEL WIRE

ALL-WHEEL DRIVE CONTROL UNIT BRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM ENGINE FUSE, RELAY MODULE FLEX-E BP PNK FLEX-E BM WIRE FUSE 122 FUSE 301 GRN WIRE HOT AT ALL TIMES HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED PASSENGER-SIDE A-PILLAR FUSE BOX PNK/RED WIRE RED WIRE RED/WHT WIRE TEMP TEMP GND TRANSMISSION OIL TEMPERATURE SENSOR

BLK WIRE BLK/RED WIRE BLU/BRN WIRE BRN BRN/YEL) WIRE BRN WIRE CAN H H CAN H L CAN HMI H CAN HMI L CENTER STOP LAMP COMPUTER DATA LINES SYSTEM COUPE DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FUSE 128 FUSE 209 206 FUSE 3 FUSE 305 FUSE 322 GRN WIRE GRN/BRN WIRE GRN/RED WIRE GRN/VIO WIRE GRY/BLK WIRE GRY/BLU WIRE HAZARD LIGHT HAZARD SIG HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER LEFT LICENSE PLATE LAMP LIN 1 MULTIPLE FUSE 1 PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE PNK/RED WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT LICENSE PLATE LAMP SENS SIG SIG (1) SIG (2) SIG 3 STOP LAMP SWITCH UPPER CONTROL PANEL CONTROL UNIT VIO WIRE VIO/WHT WIRE W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING WHT WIRE YEL WIRE YEL/WHT WIRE

BLK WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN H H CAN H L CAN HMI H CAN HMI L COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FLEX-E BM FLEX-E BP FRONT SAM CONTROL UNIT FUSE 128 FUSE 200 FUSE 210 FUSE 322 GRN WIRE GRN/BRN WIRE GRN/RED WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/VIO WIRE GRY/YEL WIRE HAZARD LIGHT COC HAZARD SIG HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL UNIT (IN LEFT FRONT DOOR) LEFT FRONT LAMP UNIT LEFT OUTSIDE MIRROR LEFT OUTSIDE MIRROR TURN SIGNAL LAMP NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE PNK/RED WIRE RED WIRE RED/BLK WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTROL UNIT (IN RIGHT FRONT DOOR) RIGHT FRONT LAMP UNIT RIGHT OUTSIDE MIRROR RIGHT OUTSIDE MIRROR TURN SIGNAL LAMP SENS SIG SIG (1) SIG (2) SIG 3 SIG 3 PNK SENS (+) WIRE SML STEERING COLUMN MODULE CONTROL UNIT STOP LAMP SWITCH SYSTEM TSI R (+) TSI-L (+) VIO WIRE VIO/WHT WIRE W/O FUEL CELL RETROFITTING YEL WIRE YEL/WHT WIRE

BLK WIRE BLK/RED WIRE BLU/BLK WIRE BLU/BRN WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN H H CAN H L COC COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE DTRL ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FUSE 126 FUSE 128 FUSE 200 GRN WIRE GRN/BRN WIRE GRN/RED WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/YEL WIRE HAZARD LIGHT HAZARD SIG HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED LEFT FRONT LAMP UNIT PNK WIRE PNK/RED WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/WHT WIRE SENS SIG SIG (1) SIG (2) SIG 3 STOP LAMP SWITCH TSI R (+) VIO WIRE VIO/WHT WIRE W/O FUEL CELL RETROFITTING YEL 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

BLK WIRE BLU/BRN WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L CAN PER H CAN PER L COC COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FLEX-E BP PNK FLEX-E BM WIRE FUSE 126 FUSE 200 FUSE 202 FUSE 3 FUSE 305 FUSE 322 GRN WIRE GRN/WHT WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER LEFT FRONT LEVEL SENSOR LEFT REAR LEVEL SENSOR MULTIPLE FUSE 1 PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE PNK/RED WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT SENS SIG (1) SIG (2) SIG 3 STEERING COLUMN MODULE CONTROL UNIT VIO WIRE W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING WHT WIRE WHT/YEL WIRE YEL WIRE YEL/WHT WIRE

BLK WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN H H CAN H L CAN HMI H CAN HMI L COC COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE DTRL ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FLEX-E BM FLEX-E BP FRONT SAM CONTROL UNIT FUSE 126 FUSE 200 FUSE 202 FUSE 3 FUSE 305 FUSE 312 FUSE 322 GRN WIRE GRY/BLU WIRE GRY/ORG WIRE GRY/PNK WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HB (+) HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER LB (+) LEFT FRONT LAMP UNIT MULTIPLE FUSE 1 OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE PNK/RED WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT SENS SENS (+) SIG 3 SIG (1) SIG (2) SIG 3 SIG 4 SML STEERING COLUMN MODULE CONTROL UNIT TSI L (+) 31 TSI R (+) TSI R (+) 31 TSI-L (+) VIO WIRE VIO/WHT WIRE W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING YEL WIRE YEL/WHT WIRE

BLK WIRE BLU/BRN 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 COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT (LEFT REAR OF ENGINE COMPT) ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FLEX-E BM FLEX-E BP FRONT SAM CONTROL UNIT (LEFT END OF DASH) FUSE 110 FUSE 126 FUSE 133 111 FUSE 200 FUSE 202 FUSE 3 FUSE 305 FUSE 322 GRN WIRE GRN/WHT WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER LEFT FRONT LAMP UNIT MULTIPLE FUSE 1 PASSENGER-SIDE A-PILLAR FUSE BOX PNK SENS (+) WIRE PNK WIRE PNK/RED WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT SENS SENS COC SIG (1) SIG (2) SIG 3 SIG 4 STEERING COLUMN MODULE CONTROL UNIT VIO WIRE VIO/WHT WIRE W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING 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