Mercedes-Benz GLC-class X253 (2015-2019) left fuse, relay module Wiring diagrams

BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE CAN B H CAN B L CAN B L RBA-1 CAN C H CAN C L CAN HMI H CAN HMI L CLIMATE CONTROL CONTROL UNIT COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP COOLANT LEVEL SWITCH COOLANT TEMPERATURE GAUGE COOLANT TEMPERATURE SENSOR COOLANT TEMPERATURE WARNING LAMP COOLANT THERMOSTAT HEATING ELEMENT DRIVETRAIN CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX ENGINE CONTROLS SYSTEM ENGINE FUSE, RELAY MODULE FAN MOTOR (BEHIND RADIATOR) FRONT SAM CONTROL UNIT FUSE 101 FUSE 120 FUSE 207 FUSE 315 FUSE 7 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ HOT W/ CPC RELAY ENERGIZED INSTRUMENT CLUSTER INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT FUSE, RELAY MODULE ME-SFI (ME) CONTROL UNIT OVERHEAD CONTROL PANEL CONTROL UNIT PURGE CONTROL VALVE PWR-1 RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE REG RELAY ENERGIZED RIGHT A-PILLAR FUSE BOX SIG SIG GND TMOT WAPU+ WHT/BLU WIRE YEL WIRE YEL/WHT WIRE

AMBIENT LAMP ANST ANST ILS RH BLK WIRE BLU WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE BUTTON CAN B H CAN B H RBA-1 CAN B L COC COMPUTER DATA LINES SYSTEM DOME LAMP FRONT DOME LAMP FRONT DOME LAMP BUTTON FRONT SAM CONTROL UNIT (LEFT END OF DASH) FUSE 200 FUSE 312 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRY/BLU WIRE GRY/RED WIRE HOT AT ALL TIMES ILS LH INSIDE REAR VIEW MIRROR INTERIOR LAMP INTERIOR LAMP AUTOMATIC FUNCTION SWITCH INTERIOR PROTECTION SWITCH LEFT FRONT FOOTWELL LAMP LEFT FRONT READING LAMP BUTTON LEFT FUSE, RELAY MODULE LEFT READING LAMP LEFT REAR LEFT REAR DOME LAMP LL BU LL WH (+) LL YE LL YE RBA-1 LLS LH LLS RH ORG/ WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PWR-1 READING LAMP REAR DOME LAMP BUTTON RED WIRE RED/BLK WIRE RED/BRN WIRE RED/WHT WIRE RIGHT A-PILLAR PANEL FUSE BOX RIGHT FRONT FOOTWELL LAMP RIGHT FRONT READING LAMP BUTTON RIGHT READING LAMP RIGHT REAR RIGHT REAR DOME LAMP S DL LH S DL RH S SL VL SIG VERS VIO WIRE W/ AMBIANCE ILLUMINATION W/ INTERIOR LIGHTS PACKAGE W/ DRIVING SCHOOL PACKAGE WHT WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE BRN/BLU WIRE BRN/YEL WIRE FRONT CENTER CONSOLE CUP HOLDER AMBIANCE ILLUMINATION FUSE 216 GLOVE BOX LAMP SWITCH (RIGHT SIDE OF GLOVE BOX) GLOVE BOX LAMP) GRY/RED WIRE HOT W/ CIRCUIT LEFT FRONT FOOTWELL LAMP LEFT FRONT MIRROR LAMP SWITCH LEFT FUSE, RELAY MODULE LEFT REAR FOOTWELL LAMP LEFT SUN VISOR MIRROR LAMP PERFUME ATOMIZER GENERATOR (W/ AIR BALANCE PACKAGE) (IN GLOVE COMPT) RED/BLK WIRE RED/WHT WIRE RIGHT FRONT FOOTWELL LAMP RIGHT FRONT MIRROR LAMP SWITCH RIGHT REAR FOOTWELL LAMP RIGHT SUN VISOR MIRROR LAMP SIG W/ AIR BALANCE PACKAGE W/O AIR BALANCE PACKAGE WHT WIRE YEL WIRE

BLU WIRE BRN WIRE CAN-D H CAN-D L DIAGNOSTIC CONNECTOR ELECTRONIC IGNITION SWITCH CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT EMERGENCY CALL SYSTEM CONTROL UNIT ETN RX+ ETN TX+ FUSE 204 GRN WIRE GRY WIRE GRY/WHT WIRE HEAD UNIT HERMES CONTROL UNIT HOT AT ALL TIMES K LINE LEFT FUSE, RELAY MODULE ORG/ WIRE PNK WIRE RED/GRN WIRE TELEMATICS SERVICES COMMUNICATION MODULE W/ EMERGENCY CALL/ ASSISTANCE SYSTEM W/ HERMES W/ TELEMATICS WAKEUP WHT WIRE WHT/BLK WIRE YEL/GRY 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

BLK WIRE BRN WIRE BRN/RED WIRE CAN B H RBA-1 CAN B L COC COMBINATION SWITCH COMPUTER DATA LINES SYSTEM ELECTRIC PARKING BRAKE SWITCH FLEXRAY 1 BM FLEXRAY 1 BP FOOTWELL ILLUMINATION SWITCH FRONT CENTER CONSOLE CUP HOLDER AMBIANCE ILLUMINATION FRONT CIGARETTE LIGHTER W/ ASHTRAY ILLUMINATION FRONT SAM CONTROL UNIT (LEFT END OF DASH) FUSE 200 GRN WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HOT AT ALL TIMES LDS SGN 1 PNK WIRE LDS SGN 2 LDS SGN 3 LEFT FUSE, RELAY MODULE LEFT LUGGAGE COMPARTMENT REAR BACKREST RELEASE BUTTON PEDAL OPERATION MONITOR SWITCH PNK WIRE PNK/GRN WIRE PWR-1 RBA RBA-1 RED WIRE RIGHT LUGGAGE COMPARTMENT REAR BACKREST RELEASE BUTTON STEERING COLUMN MODULE CONTROL UNIT TWO-WAY RADIO SWITCH VEHICLE INTERIOR POWER OUTLET VIO WIRE W/ SMOKER'S PACKAGE W/O SMOKER'S PACKAGE YEL WIRE

ALARM SIREN AMBIENT LAMP ATA (EDW)/TOWING SENSOR/ INTERIOR MOTION SENSOR CONTROL UNIT BLK WIRE BLK/WHT WIRE BRN WIRE BRN/BLK WIRE CAN A H CAN A L COMPUTER DATA LINES SYSTEM FORWARD AUTOMATIC DIMMING MIRROR LIGHT SENSOR FUSE 202 GARAGE DOOR OPENER GARAGE DOOR OPENER BUTTON 1 GARAGE DOOR OPENER BUTTON 2 GARAGE DOOR OPENER BUTTON 3 GARAGE DOOR OPENER INDICATOR LAMP GRN WIRE GRY WIRE HANDS-FREE SYSTEM MICROPHONE HEAD UNIT HOT AT ALL TIMES INSIDE REAR VIEW MIRROR INSIDE REAR VIEW MIRROR DIMMING LEFT FRONT DOOR INTERIOR PROTECTION SENSOR LEFT FUSE, RELAY MODULE LEFT READING LAMP LEFT REAR INTERIOR PROTECTION SENSOR MIC 1 IN+ MIC 2 IN+ NCA WIRE ORG/ WIRE PNK WIRE REAR WINDOW GLASS BREAKAGE SENSOR REARWARD AUTOMATIC DIMMING MIRROR LIGHT SENSOR RED WIRE RED/WHT WIRE RIGHT FRONT DOOR INTERIOR PROTECTION SENSOR RIGHT READING LAMP RIGHT REAR INTERIOR PROTECTION SENSOR SHIELD VIO WIRE WHT WIRE YEL 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

AIR CONDITIONING SYSTEM BLU WIRE BOOSTER BLOWER ELECTRONIC BLOWER REGULATOR BRN WIRE BRN/GRY WIRE CLIMATE CONTROL OPERATING UNIT CLIMATE CONTROL UNIT COMBUSTION AIR BLOWER COMMUNICATIONS MODULE/ STATIONARY HEATER ANTENNA SPLITTER EMERGENCY CALL SYSTEM ANTENNA FLAME MONITOR FUSE 209 FUSE 318 FUSE 410 GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER GLOW PLUG GLOW PLUG/ FLAME MONITOR UNIT GRN/VIO WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT FUSE, RELAY MODULE NCA WIRE POWER DISTRIBUTION SYSTEM REAR AIR CONDITIONING OPERATING UNIT REAR FUSE, RELAY MODULE RED WIRE RED/WHT WIRE RIGHT A-PILLAR FUSE BOX SHIELD SHIELD GSM SIG STATIONARY HEATER BUTTON STATIONARY HEATER COMBUSTION AIR BLOWER STATIONARY HEATER CONTROL UNIT STATIONARY HEATER FUEL PUMP STATIONARY HEATER RADIO REMOTE CONTROL RECEIVER STATIONARY HEATER SWITCHOVER VALVE STATIONARY HEATER UNIT (RIGHT SIDE OF ENGINE COMPT) STH TELEMATICS SERVICES COMMUNICATION MODULE TELEPHONE, STATIONARY HEATER ANTENNA CHANGEOVER SWITCH TEMPERATURE SENSOR THERMAL FUSE UMSCHVNT VIO WIRE 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