Mercedes-Benz GLC-class Coupe C253 (2016-2019) left fuse, relay module Wiring diagrams

BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/RED WIRE BLK/WHT WIRE BLS GND PAS GND BLU/BLK WIRE BLU/YEL WIRE BM 1 BP 1 BRAKE VACUUM SENSOR BRN WIRE BRN/BLK WIRE CAN H L COMPUTER DATA LINES SYSTEM DZS HL H DZS HL L DZS HR H DZS HR L DZS VL H DZS VL L DZS VR H ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FLEX RAY FRONT AXLE BRAKE PRESSURE SENSOR FRONT AXLE INTAKE BALL VALVE REAR AXLE INTAKE BALL VALVE FRONT AXLE SWITCHOVER VALVE FRONT PRESSURE SENSOR FUSE 1 FUSE 121 FUSE 200 FUSE 213 FUSE 329 GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/YEL WIRE GRY/BLU WIRE HIGH PRESSURE, RETURN PUMP MOTOR HOT AT ALL TIMES HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED K LINE LEFT FRONT PRESSURE REGULATOR VALVE (HOLD) LEFT FRONT PRESSURE REGULATOR VALVE (RELEASE) LEFT FUSE, RELAY MODULE LEFT REAR PRESSURE REGULATOR VALVE (HOLD) LEFT REAR PRESSURE REGULATOR VALVE (RELEASE) MOT L+(-) 31 MOT L-(+) MOT R+(-) MOT R-(+) DZS VR L ORG/BLU WIRE PNK WIRE PNK/GRN WIRE REAR AXLE SWITCHOVER VALVE REAR PRESSURE SENSOR RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RIGHT A-PILLAR FUSE BOX RIGHT FRONT PRESSURE REGULATOR VALVE (HOLD) RIGHT FRONT PRESSURE REGULATOR VALVE (RELEASE) RIGHT REAR PRESSURE REGULATOR VALVE (HOLD) RIGHT REAR PRESSURE REGULATOR VALVE (RELEASE) SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ANGLE SENSOR STOP LAMP SWITCH SW 1 SW 2 SW 3 SW 4 TAXIMETER (IF EQUIPPED) TRACTION SYSTEM HYDRAULIC UNIT TWO-WAY RADIO UB S UB V VAC GND VAC PUMP L BLS SUP VAC SUP VIO WIRE VIO/WHT WIRE WHT WIRE WHT/YEL WIRE YEL WIRE YEL/GRY WIRE

BRN WIRE CAN HMI H CAN HMI L CAN PER H CAN PER L COLLISION PREVENTION ASSIST CONTROLLER UNIT COMPUTER DATA LINES SYSTEM FUSE 208 FUSE 453 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT W/ VEHICLE INTERIOR TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER LEFT FUSE, RELAY MODULE REAR FUSE, RELAY MODULE RED/BLU WIRE RED/YEL WIRE YEL WIRE YEL/WHT WIRE

BLK WIRE BLK/BRN WIRE BLU/BRN WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L COC COMPUTER DATA LINES SYSTEM EXTERIOR LIGHTS SWITCH FRONT FOG LAMPS INDICATOR LAMP FUSE 200 FUSE 208 FUSE 326 FUSE 329 GRN WIRE GRY/BLU WIRE HEADLAMP RANGE CONTROLLER HIGH BEAM INDICATOR LAMP HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER LDS SGN 1 LDS SGN 2 LDS SGN 3 LEFT FRONT LEVEL SENSOR LEFT FUSE, RELAY MODULE LEFT REAR LEVEL SENSOR LOW BEAM INDICATOR LAMP MULTI-FUNCTION DISPLAY PNK WIRE POWER DISTRIBUTION SYSTEM PWR-1 PWR-2 RBA-1 REAR FOG LAMP INDICATOR LAMP REAR FOG LIGHT BUTTON RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT A-PILLAR FUSE BOX VIO WIRE WHT/BLK WIRE WHT/YEL WIRE YEL WIRE YEL/WHT WIRE

56 AL 56 BL 56 BR BLK WIRE BLU/BLK WIRE BLU/BRN WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN B L RBA-1 CAN H H CAN H L CAN HMI L CAN-NMI H COC COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CUTOUT RELAY ENERGIZED ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FLEX RAY 1 BM FLEX RAY 1 BP FRONT FOG LAMP INDICATOR LAMP FRONT SAM CONTROL UNIT FUSE 128 FUSE 200 FUSE 208 FUSE 326 FUSE 329 GRN WIRE GRY/BLU WIRE GRY/ORG WIRE GRY/PNK WIRE GRY/WHT WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HEADLAMP RANGE CONTROLLER HI BEAM HIGH BEAM INDICATOR LAMP HOT AT ALL TIMES HOT W/ HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER LDS SGN 1 LDS SGN 2 LDS SGN 3 LEFT FRONT LAMP UNIT LEFT FUSE, RELAY MODULE LEFT HEADLAMP RANGE ADJUSTMENT ACTUATOR MOTOR LOW BEAM LOW BEAM INDICATOR LAMP LWR LWR SIG MULTI-FUNCTION DISPLAY OVERHEAD CONTROL PANEL CONTROL UNIT PNK WIRE PNK/RED WIRE PWR-1 QUIESCENT CURRENT RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RBA-1 REAR FOG LAMP BUTTON REAR FOG LAMP INDICATOR LAMP RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT A-PILLAR FUSE BOX RIGHT FRONT LAMP UNIT RIGHT HEADLAMP RANGE ADJUSTMENT ACTUATOR MOTOR STEERING COLUMN MODULE CONTROL UNIT SW 1 SW 2 SW 3 SW 4 TEL TFL VIO WIRE VIO/WHT WIRE 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 COC COMPUTER DATA LINES SYSTEM ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT (LEFT REAR OF ENGINE COMPT) ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FRONT FOG LAMP INDICATOR LAMP FRONT SAM CONTROL UNIT (LEFT END OF DASH) FUSE 128 FUSE 200 FUSE 208 GRN WIRE GRY/BLU WIRE HEADLAMP RANGE CONTROLLER HIGH BEAM INDICATOR LAMP HOT AT ALL TIMES HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER LDS SGN 1 LDS SGN 2 LDS SGN 3 LEFT FUSE, RELAY MODULE LOW BEAM INDICATOR LAMP MULTI-FUNCTION DISPLAY PNK WIRE PNK/RED WIRE PWR-1 PWR-2 RBA-1 REAR FOG LAMP BUTTON REAR FOG LAMP INDICATOR LAMP RED WIRE RED/BLU WIRE RED/YEL WIRE SW 1 SW 2 SW 3 SW 4 VIO WIRE VIO/WHT WIRE YEL WIRE YEL/WHT WIRE

BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FLEXRAY 1 BM FLEXRAY 1 BP FUSE 210 GRN WIRE HEATING ELEMENT HEATING ELEMENT TEMPERATURE SENSOR HOT AT ALL TIMES LEFT FUSE, RELAY MODULE LH - NCA WIRE NTC- PNK WIRE RED/BLK WIRE STEERING COLUMN ADJUSTMENT, STEERING WHEEL HEATER SWITCH STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS STEERING WHEEL HEATER W/ ACTIVE LANE KEEPING ASSIST

ANTI-LOCK BRAKE SYSTEM INDICATOR LAMP BLK WIRE BLK/WHT WIRE BRAKE FLUID, PARKING BRAKE INDICATOR LAMP BRAKE SYSTEM WARNING LAMP BRN WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE GAUGE COOLANT TEMPERATURE WARNING LAMP ELECTRONIC STABILITY PROGRAM WARNING LAMP ENGINE DIAGNOSIS INDICATOR LAMP ESP SPORT INDICATOR LAMP ESP/ASR OFF WARNING LAMP FRONT FOG LAMPS INDICATOR LAMP FUEL LEVEL INDICATOR FUEL RESERVE INDICATOR LAMP FUSE 200 FUSE 206 FUSE 208 FUSE 333 HEAD-UP DISPLAY (IF EQUIPPED) HIGH BEAM INDICATOR LAMP HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT CLUSTER SPEAKER LEFT FUSE, RELAY MODULE LEFT TURN SIGNAL INDICATOR LAMP LOW BEAM INDICATOR LAMP LVDS MULTI-FUNCTION DISPLAY NCA WIRE PARKING BRAKE INDICATOR LAMP POWER STEERING WARNING LAMP REAR FOG LAMP INDICATOR LAMP RED WIRE RED/YEL WIRE REGENERATIVE BRAKING SYSTEM INDICATOR LAMP RIGHT A-PILLAR FUSE BOX RIGHT TURN SIGNAL INDICATOR LAMP RX- SEAT BELT WARNING LAMP SHIELD SPEEDOMETER STANDING LAMPS INDICATOR LAMP SUPPLEMENTAL RESTRAINT SYSTEM INDICATOR LAMP TACHOMETER TIRE PRESSURE MONITOR WARNING LAMP YEL WIRE YEL/WHT WIRE

BBV VR BCL SW DR(-) BLK WIRE BLU WIRE BRAKE FLUID LEVEL SWITCH BRAKE FLUID, PARKING BRAKE INDICATOR LAMP BRAKE SYSTEM WARNING LAMP 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 L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DRIVER SEAT BELT BUCKLE SWITCH ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX FRONT SAM CONTROL UNIT FUSE 1 FUSE 200 FUSE 208 FUSE 316 FUSE 465 FUSE 466 GRN WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR LOCK LEFT FRONT DOOR ROTARY TUMBLER SWITCH LEFT FUSE, RELAY MODULE MULTI-FUNCTION DISPLAY NCA WIRE PWR-1 REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT A-PILLAR FUSE BOX RIGHT FRONT BRAKE WEAR SENSOR RIGHT REAR BRAKE WEAR SENSOR SEAT BELT WARNING LAMP SIG SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SW 1 SW 2 SW 3 SW 4 VIO WIRE VIO/WHT WIRE WHT/GRY WIRE YEL WIRE YEL/WHT WIRE

BRN WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM CUTOUT RELAY ENERGIZED FUSE 208 FUSE 341 HOT AT ALL TIMES HOT W/ INSTRUMENT CLUSTER LEFT FRONT TIRE PRESSURE SENSOR LEFT FUSE, RELAY MODULE LEFT REAR TIRE PRESSURE SENSOR QUIESCENT CURRENT RED/WHT WIRE RED/YEL WIRE RIGHT A-PILLAR FUSE BOX RIGHT FRONT TIRE PRESSURE SENSOR RIGHT REAR TIRE PRESSURE SENSOR TIRE PRESSURE MONITOR CONTROL UNIT TIRE PRESSURE MONITOR WARNING LAMP YEL WIRE YEL/WHT WIRE

30-1 BLK/BLU WIRE BLK/YEL WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CAN B L RBA-1 CAN HMI H CAN HMI L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FLEX RAY 1 BM FLEX RAY 1 BP FLEXRAY 1 BM FLEXRAY 1 BP FRONT SAM CONTROL UNIT FUSE 106 FUSE 109 FUSE 200 FUSE 205 FUSE 326 FUSE 329 FUSE 465 FUSE 466 FUSE 5 GRN WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER LEFT FUSE, RELAY MODULE N/A OVERHEAD CONTROL PANEL CONTROL UNIT PNK WIRE PWR-1 RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT (RIGHT REAR OF LUGGAGE COMPT) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RIGHT A-PILLAR FUSE BOX SIG SPRAY NOZZLE HOSE HEATER (IF EQUIPPED) (CENTER REAR OF ENGINE COMPT) STEERING COLUMN MODULE CONTROL UNIT TAILGATE WIPER MOTOR WINDSHIELD WASHER SYSTEM PUMP WINDSHIELD WASHER SYSTEM SWITCH WINDSHIELD WASHER SYSTEM WASHER FLUID LEVEL SWITCH WIPER MOTOR WIPER PARK POSITION HEATER RELAY WIPER SWITCH YEL WIRE YEL/WHT WIRE