Mercedes-Benz GLC-class Coupe C253 facelift (2019-2023) hot at all times Wiring diagrams

ALARM SIREN BLU WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DRIVER SIDE ENGINE HOOD CONTACT SWITCH FRONT SAM CONTROL UNIT FUSE 312 FUSE 318 HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT REAR WINDOW GLASS BREAKAGE SENSOR LIN OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER SIDE ENGINE HOOD CONTACT SWITCH PASSENGER-SIDE A-PILLAR FUSE BOX REAR WINDOW GLASS BREAKAGE SENSOR RED WIRE RIGHT REAR WINDOW GLASS BREAKAGE SENSOR SIG UPPER CONTROL PANEL CONTROL UNIT YEL WIRE YEL/WHT WIRE

BLU WIRE BLU/WHT WIRE BRN WIRE CAN HMI H CAN HMI L CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRONIC IGNITION SWITCH CONTROL UNIT FLEX-E BP PNK FLEX-E BM WIRE FULLY INTEGRATED TRANSMISSION CONTROL UNIT (IN BOTTOM OF TRANSMISSION) FUSE 10 FUSE 202 GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INSTRUMENT CLUSTER NCA WIRE P NOT RED WIRE SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL DOWNSHIFT BUTTON STEERING WHEEL ELECTRONICS STEERING WHEEL UPSHIFT BUTTON VEHICLE INTERIOR PREFUSE BOX YEL WIRE YEL/WHT 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

BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM COUPE DRIVER-SIDE FUSE, RELAY MODULE FUSE 214 FUSE 301 FUSE 302 FUSE 303 FUSE 406 FUSE 408 FUSE 477 GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES LEFT LUGGAGE COMPARTMENT LAMP PASSENGER-SIDE A-PILLAR FUSE BOX REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RIGHT LUGGAGE COMPARTMENT LAMP RIGHT TRUNK LID/ LIFTGATE AMBIENT LAMP, WARNING LAMP SIG SIG (+) HECKD SIG (+) HECKL SIG HECKR TRUNK LID/ LIFTGATE EXTERNAL OPERATION SWITCH VIO WIRE W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING WHT WIRE

BLK WIRE BRN WIRE BRN/BLK WIRE DIFFERENTIAL LOCK ACTUATOR (ON REAR DIFFERENTIAL) ELECTRONIC DIFFERENTIAL CONTROL UNIT FUSE 410 FUSE 428 GRN WIRE GRY/WHT WIRE HECKR HOT AT ALL TIMES MOT- PNK/RED WIRE REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED/WHT WIRE RED/YEL WIRE SIG VIO WIRE 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

BLK WIRE BLU WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN B L RBA-1 COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL UNIT FUSE 309 FUSE 312 FUSE 317 GRN WIRE GRY WIRE HALL SENSOR 1 HALL SENSOR 2 HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED MOT- MOTOR OVERHEAD CONTROL PANEL CONTROL UNIT PANORAMIC SLIDING ROOF CONTROL MODULE PANORAMIC SLIDING ROOF ROLLER SUN BLIND DRIVE UNIT PASSENGER-SIDE A-PILLAR FUSE BOX RED WIRE RED/WHT WIRE W/ FUEL CELL RETROFITTING W/O FUEL CELL RETROFITTING

BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN B L RBA-1 COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL UNIT FUSE 312 FUSE 317 HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER-SIDE A-PILLAR FUSE BOX RED WIRE RED/WHT WIRE SLIDING ROOF CONTROL MODULE SLIDING ROOF HALL SENSOR 1 SLIDING ROOF HALL SENSOR 2 SLIDING ROOF MOTOR WHT WIRE