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

2 3 A M K KK 6 7 TMP VD V 6 7 WAPU+ AFV AC HOUSING, BLK WIRE BLK/YEL WIRE BLOWER MOTOR BLOWER REGULATOR BLU WIRE BLU/BRN WIRE BOOSTER BLOWER ELECTRONIC BLOWER REGULATOR BRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAN B H CAN B L CENTRAL AIR DISTRIBUTION POSITION DETECTION MICROSWITCH CLIMATE CONTROL UNIT (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM EVAPORATOR TEMPERATURE SENSOR FUSE 207 FUSE 3 FUSE 311 FUSE 340 FUSE 415 GND GND GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT FOOTWELL AIR OUTLET TEMPERATURE SENSOR LEFT FUSE, RELAY MODULE ORG/ WIRE PERFUME ATOMIZER GENERATOR PNK WIRE REAR CENTER AIR VENT AIR OUTLET TEMPERATURE SENSOR REAR FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT A-PILLAR BOX RIGHT FOOTWELL AIR OUTLET TEMPERATURE SENSOR SIG STATIONARY HEATER UNIT SW POS TEMP TMP FR L TMP FR R VEHICLE INTERIOR PREFUSE BOX VIO WIRE VIO/YEL WIRE W/ AIR BALANCE PACKAGE WHT/BLU WIRE YEL WIRE YEL/VIO WIRE

A/C BUTTON A/C, RESIDUAL HEAT ON/OFF BUTTON AIR DISTRIBUTION BUTTON AIR RECIRCULATION MODE BUTTON BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAN B H CAN B L CAN HMI H CAN HMI L CHARGE AIR TEMPERATURE SENSOR DOWNSTREAM OF THROTTLE VALVE CHARGE AIR TEMPERATURE SENSOR UPSTREAM OF THROTTLE VALVE CLIMATE CONTROL MENU BUTTON CLIMATE CONTROL MENU, RESIDUAL HEAT ON/OFF BUTTON CLIMATE CONTROL OPERATING UNIT (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM COOLANT LEVEL SWITCH COOLANT TEMPERATURE GAUGE COOLANT TEMPERATURE SENSOR COOLANT TEMPERATURE WARNING LAMP COOLANT THERMOSTAT HEATING ELEMENT DEFROSTING BUTTON DRIVETRAIN CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX ENGINE CONTROLS SYSTEM ENGINE FUSE, RELAY MODULE FAN MOTOR (BEHIND RADIATOR) FRONT AUTO BUTTON FRONT BLOWER BUTTON FRONT SAM CONTROL UNIT FUSE 101 FUSE 120 FUSE 209 FUSE 315 FUSE 326 FUSE 7 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ HOT W/ CPC RELAY ENERGIZED HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LEFT AIR DISTRIBUTION BUTTON LEFT FUSE, RELAY MODULE LEFT TEMPERATURE SELECTION BUTTON ME-SFI (ME) CONTROL UNIT OUTSIDE TEMPERATURE SENSOR OVERHEAD CONTROL PANEL CONTROL UNIT POWER DISTRIBUTION SYSTEM PURGE CONTROL VALVE PWR-1 RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RBA-1 REAR WINDOW HEATER BUTTON RED WIRE RED/GRN WIRE RED/WHT WIRE REFRIGERANT COMPRESSOR MAGNETIC CLUTCH REFRIGERANT COMPRESSOR REGULATION VALVE REFRIGERANT COMPRESSOR W/ MAGNETIC CLUTCH REG 30 RELAY ENERGIZED RIGHT A-PILLAR FUSE BOX RIGHT AIR DISTRIBUTION BUTTON RIGHT TEMPERATURE SELECTION BUTTON SIG STATIONARY HEATER BUTTON SYNC BUTTON VIO/YEL WIRE YEL WIRE YEL/WHT WIRE

BACKUP LAMPS CIRCUIT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLU/BRN WIRE BMSL RBA-1 BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN B L RBA-1 CENTER STOP LAMP COC COMBINATION SWITCH COMPUTER DATA LINES SYSTEM DIAG FLEX RAY 1 BM FLEX RAY 1 BP FRA HL FRA HR FUSE 200 FUSE 210 FUSE 465 GRN WIRE GRN/BLU WIRE GRN/ORG WIRE GRN/VIO WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/YEL WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HOT AT ALL TIMES INNER LEFT REAR LAMP UNIT INNER RIGHT REAR LAMP UNIT LDS SGN 1 LDS SGN 2 LDS SGN 3 LEFT FUSE, RELAY MODULE LEFT REAR LAMP UNIT NSL PNK WIRE PWR-1 PWR-2 RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RBA-1 REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR LAMP UNIT SL HD SML SML HL SML HR STEERING COLUMN MODULE CONTROL UNIT TURN SIGNAL LAMPS SWITCH VIO WIRE W/ ACTIVE LANE KEEPING ASSIST YEL WIRE YEL/WHT WIRE

AUDIO/COMAND CONTROL PANEL BLK WIRE BLK/GRN WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN A H CAN A L CAN B H CAN B L CAN H H CAN H L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM EL VL ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT EXTERIOR LIGHTS SWITCH FUSE 208 FUSE 209 FUSE 326 GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/VIO WIRE GRY/BLU WIRE HAZARD WARNING SYSTEM BUTTON HEADLAMP RANGE CONTROLLER HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER LEFT FUSE, RELAY MODULE LEFT LICENSE PLATE LAMP LEFT TURN SIGNAL IND LAMP LIN 1 MIRRORS SYSTEM PAS GND PNK WIRE POWER DISTRIBUTION SYSTEM REAR FOG LAMP BUTTON RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT A-PILLAR FUSE BOX RIGHT FRONT DOOR CONTROL UNIT (IN RIGHT FRONT DOOR) RIGHT LICENSE PLATE LAMP RIGHT OUTSIDE MIRROR RIGHT OUTSIDE MIRROR AMBIENT LAMP RIGHT OUTSIDE MIRROR TURN SIGNAL LAMP RIGHT TURN SIGNAL IND LAMP SIG STANDING LAMPS IND LAMP STOP LAMP SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) UPPER CONTROL PANEL CONTROL UNIT VAC PUMP L VIO WIRE VIO/WHT WIRE WHT WIRE YEL WIRE YEL/WHT WIRE

BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLS SUP VAC PUMP 2 BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CAN B L RBA-1 CAN H H CAN H L CAN HMI H CAN HMI L COC COMBINATION SWITCH COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM EL VL ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FLASHER/ HIGH BEAM SWITCH FLEXRAY 1 BM FLEXRAY 1 BP FRONT SAM CONTROL UNIT FUSE 128 FUSE 200 FUSE 208 FUSE 210 GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/ORG WIRE GRN/RED WIRE GRY WIRE GRY/BLU WIRE GRY/VIO WIRE GRY/YEL WIRE HEADLAMP HEADLAMP RANGE CONTROLLER HOT AT ALL TIMES HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER LDS SGN 1 LDS SGN 2 LDS SGN 3 PNK WIRE LEFT FRONT DOOR CONTROL UNIT (IN LEFT FRONT DOOR) LEFT FRONT LAMP UNIT LEFT FUSE, RELAY MODULE LEFT OUTSIDE MIRROR LEFT OUTSIDE MIRROR AMBIENT LAMP LEFT OUTSIDE MIRROR TURN SIGNAL LAMP LEFT TURN SIGNAL IND LAMP MIRRORS SYSTEM PNK WIRE PNK/RED WIRE PWR-1 REAR FOG LAMP BUTTON RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT RIGHT TURN SIGNAL IND LAMP SIDE MARKER LAMP SIG SIG PAS GND BLS GND SML STANDING LAMPS IND LAMP STEERING COLUMN MODULE CONTROL UNIT STOP LAMP SWITCH SYSTEM TURN SIGNAL LAMP TURN SIGNAL LAMPS SWITCH VIO WIRE VIO/WHT WIRE YEL WIRE YEL/WHT WIRE

AUDIO/COMAND CONTROL PANEL BACKUP LAMPS CIRCUIT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/ORG WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE BU HL BU HR CAN A H CAN A L CAN B H CAN B L CAN B L RBA-1 COMPUTER DATA LINES SYSTEM DIAG DIAG HR EL VL EXCEPT LIMOUSINE FRA HL FRA HR FRA-L HL FRA-R FUSE 209 FUSE 326 FUSE 466 465 GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/ORG WIRE GRN/VIO WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE HAZARD WARNING SYSTEM BUTTON HGB R HGB-L HD HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LAMP LEFT BACKUP LAMP LEFT FUSE, RELAY MODULE LEFT REAR FOG LAMP LEFT REAR LAMP UNIT LEFT REAR TURN SIGNAL LAMP LEFT STOP LAMP LEFT TAIL LAMP LIMOUSINE MARKER MIRRORS SYSTEM NSL NSL-L ORG/ WIRE POWER DISTRIBUTION SYSTEM PWR-1 PWR-2 RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/BLU WIRE RED/WHT WIRE RIGHT A-PILLAR FUSE BOX RIGHT BACKUP LAMP RIGHT FRONT DOOR CONTROL UNIT (IN RIGHT FRONT DOOR) RIGHT OUTSIDE MIRROR RIGHT OUTSIDE MIRROR AMBIENT LAMP RIGHT OUTSIDE MIRROR TURN SIGNAL LAMP RIGHT REAR LAMP UNIT RIGHT REAR TURN SIGNAL LAMP RIGHT STOP LAMP RIGHT TAIL LAMP SL HD SL HL SL HR SML SML HL SML HR UPPER CONTROL PANEL CONTROL UNIT VIO WIRE WHT WIRE YEL WIRE YEL/WHT WIRE

BACKUP LAMPS CIRCUIT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/ORG WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CENTER STOP LAMP COC COMBINATION SWITCH COMPUTER DATA LINES SYSTEM EL VL FLEX RAY 1 BM FLEX RAY 1 BP FUSE 200 FUSE 210 GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRY/BLU WIRE GRY/YEL WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HOT AT ALL TIMES INNER LEFT REAR LAMP UNIT INNER RIGHT REAR LAMP UNIT LDS SGN 1 LDS SGN 2 LDS SGN 3 LEFT BACKUP LAMP LEFT FUSE, RELAY MODULE LEFT INSIDE TAILLIGHT LEFT LICENSE PLATE LAMP LEFT REAR FOG LAMP MIRRORS SYSTEM PNK WIRE PWR-1 PWR-2 RBA-1 RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE RIGHT BACKUP LAMP RIGHT FRONT DOOR CONTROL UNIT (IN RIGHT FRONT DOOR) RIGHT INSIDE TAILLIGHT RIGHT LICENSE PLATE LAMP RIGHT OUTSIDE MIRROR RIGHT OUTSIDE MIRROR AMBIENT LAMP RIGHT OUTSIDE MIRROR TURN SIGNAL LAMP SML STEERING COLUMN MODULE CONTROL UNIT TURN SIGNAL LAMPS SWITCH VIO WIRE WHT WIRE YEL WIRE

AUDIO/COMAND CONTROL PANEL BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLS-SUP VAC PUMP L BLU WIRE BLU/GRN WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN A H CAN A L CAN B H CAN B L CAN H H CAN H L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM EL VL ELECTRONIC STABILITY PROGRAM CONTROL UNIT FUSE 208 FUSE 209 GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE HAZARD WARNING SYSTEM BUTTON HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL UNIT (IN LEFT FRONT DOOR) LEFT FUSE, RELAY MODULE LEFT OUTSIDE MIRROR LEFT OUTSIDE MIRROR AMBIENT LAMP LEFT OUTSIDE MIRROR TURN SIGNAL LAMP LEFT TURN SIGNAL IND LAMP MIRRORS SYSTEM RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT RIGHT FRONT SIDE MARKER LAMP RIGHT FRONT TURN SIGNAL LAMP RIGHT HEADLAMP CONTROL UNIT RIGHT LED SIGNALING LIGHTS ACTUATION MODULE FAN MOTOR RIGHT PARKING LIGHT, STANDING LIGHT, DAYTIME RUNNING LIGHT RIGHT TURN SIGNAL IND LAMP SIG SIG BLS-GND PAS GND STANDING LAMPS IND LAMP STOP LAMP SWITCH UPPER CONTROL PANEL CONTROL UNIT VIO WIRE VIO/WHT WIRE WHT WIRE YEL WIRE YEL/WHT WIRE

BLK WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DRIVER AIR BAG SQUIB 1 DRIVER AIR BAG SQUIB 2 DRIVER SEAT BELT BUCKLE SWITCH FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FRONT PASSENGER SEAT BELT BUCKLE SWITCH FUSE 219 GRN WIRE GRN/BLK WIRE GRY WIRE GRY/GRN WIRE GRY/YEL WIRE HOT W/ INSTRUMENT CLUSTER LEFT FUSE, RELAY MODULE LEFT REAR SIDE BAG SQUIB LEFT ROLL BAR SQUIB NCA WIRE PNK/GRN WIRE RELAY ENERGIZED RIGHT SIDE BAG SENSOR SEAT BELT WARNING LAMP STEERING COLUMN MODULE CONTROL UNIT SUPPLEMENTAL RESTRAINTS SYSTEM INDICATOR LAMP USA VIO WIRE VIO/YEL WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE YEL WIRE YEL/WHT WIRE

ACT ENG HD (-) ACT ENG HD R (-) BCL SW DR(-) BCL SW PS (-) BLK WIRE BLK/ORG WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/PNK WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM CRASH DR LR (-) CRASH DR RR (-) CRASH FR L (-) CRASH FR R (+) CRASH LF (+) CRASH RH (+) DRIVER SEAT POSITION DETECTION SWITCH DRIVER-SIDE ANCHOR FITTING TENSIONER SQUIB EXTINGUISHING AGENT TANK SQUIB FRONT PASSENGER SEAT POSITION DETECTION SWITCH FUSE 218 FUSE 316 GRN WIRE GRN/BLK WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ LEFT FRONT BUMPER PEDESTRIAN PROTECTION SENSOR LEFT FRONT DOOR PRESSURE SENSOR LEFT FRONTAL ACCELERATION SENSOR LEFT FUSE, RELAY MODULE LEFT REAR DOOR PRESSURE SENSOR PNK WIRE PNK/RED WIRE RED/PNK WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT A-PILLAR FUSE BOX RIGHT FRONT BUMPER PEDESTRIAN PROTECTION SENSOR RIGHT FRONT DOOR PRESSURE SENSOR RIGHT REAR DOOR PRESSURE SENSOR RIGHT ROLL BAR SQUIB SB LR (-) SIG SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT TNSG RTR FPS (-) UEB L (+) UEB R (+) USA VIO WIRE VIO/YEL WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE YEL WIRE YEL/WHT WIRE