Mercedes-Benz GLA-class X156 facelift (2017-2020) blu/wht Wiring diagrams

BACKUP LAMP BACKUP RELAY 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 DUAL CLUTCH TRANSMISSION FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 241 FUSE 98 GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HOT AT ALL TIMES INNER LEFT REAR LAMP UNIT INNER RIGHT REAR LAMP UNIT LEFT REAR LAMP UNIT N/A RED/WHT WIRE RIGHT REAR LAMP UNIT SAM CONTROL UNIT (LEFT END OF DASH) VEHICLE INTERIOR FUSE BOX YEL WIRE

BLK WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRN WIRE COLLISION PREVENTION ASSIST CONTROLLER UNIT COLLISION PREVENTION ASSIST WARNING LAMP COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 224 FUSE 88 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED INSTRUMENT CLUSTER RED WIRE RED/BLK WIRE VEHICLE INTERIOR FUSE BOX W/O ACTIVE PARK ASSIST W/ ACTIVE PARK ASSIST W/ HEAD UP DISPLAY YEL WIRE

ACCELERATE, SET SWITCH ACCELERATOR PEDAL SENSOR (TOP OF ACCELERATOR PEDAL ASSEMBLY) BLK/GRN WIRE BLK/YEL WIRE BLS H BLS L BLU WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/WHT WIRE CAN C H CAN C L CAN E H CAN E L COMPUTER DATA LINES SYSTEM CRUISE CONTROL LEVER DECELERATE, SET SWITCH DISTRONIC CONTROL DISTRONIC ELECTRIC CONTROLLER UNIT DISTRONIC WARNING LAMP IND DOWNHILL SPEED REGULATION BUTTON DUAL CLUTCH TRANSMISSION FULLY INTEGRATED TRANSMISSION CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 214 FUSE 224 FUSE 32 GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ HOT W/ CIRCUIT 15 RELAY ENERGIZED INDICATOR SWITCH INSTRUMENT CLUSTER LEFT FRONT AXLE RPM SENSOR LEFT REAR AXLE RPM SENSOR LIN 1 ME-SFI (ME) CONTROL UNIT MOT- NCA WIRE OFF SWITCH OFFROAD PROGRAM BUTTON ORG/BLU WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE RELAY ENERGIZED RESUME FROM MEMORY SWITCH RIGHT FRONT AXLE RPM SENSOR RIGHT REAR AXLE RPM SENSOR SIG STEERING COLUMN MODULE CONTROL UNIT STOP LAMP SWITCH THROTTLE VALVE ACTUATOR (ON THROTTLE BODY) UPPER CONTROL PANEL CONTROL UNIT VEHICLE INTERIOR FUSE BOX WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL/GRY WIRE

1/2 ACTIVE CURVE ILLUMINATION ACTUATOR MOTOR BLK/GRN WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLS H BLS L BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE CAN E H CAN E L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CORNERING ILLUMINATION ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE EXTERIOR LIGHTS LED ACTUATION MODULE EXTERIOR LIGHTS SWITCH FRA-L FRA-R FRONT FOG LAMP BUTTON FUSE 229 FUSE 231 FUSE 237 FUSE 84 FUSE 89 GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE HAZARD WARNING SYSTEM BUTTON HEADLAMP FLASHER/ HIGH BEAM SWITCH HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED LIN 1 ORG/BLU WIRE PARKING LIGHT, STANDING LIGHT PARKING LIGHT, STANDING LIGHT, DAYTIME RUNNING LIGHT PLTFL L REAR FOG LIGHT BUTTON RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT SIDE MARKER LAMP STEERING COLUMN MODULE CONTROL UNIT STOP LAMP SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) SWITCH ILLUMINATION TURN SIGNAL LAMP TURN SIGNAL LAMPS SWITCH TURN SIGNAL LIGHT/ SIDE MARKER LIGHT UPLTFL L (+) UPLTFL R (+) UPPER CONTROL PANEL CONTROL UNIT VEHICLE INTERIOR FUSE BOX W/ BI-XENON HEADLAMP W/O BI-XENON HEADLAMP WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL/WHT WIRE

BLU WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRIC PARKING BRAKE SWITCH ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 203 FUSE 209 FUSE 73 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE HOT AT ALL TIMES LEFT FRONT LAMP UNIT LEFT FRONT LAMP UNIT FAN MOTOR LEFT HEADLAMP CONTROL UNIT LEFT HEADLAMP RANGE ADJUSTMENT ACTUATOR MOTOR LEFT HIGH BEAM LEFT LOW BEAM RED WIRE RED/BLK WIRE RED/YEL WIRE SIG SW 1 SW 3 SW 4 SW 6 VEHICLE INTERIOR FUSE BOX YEL WIRE

BLU WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM RED/YEL WIRE RIGHT FRONT LAMP UNIT RIGHT FRONT LAMP UNIT FAN MOTOR RIGHT HEADLAMP CONTROL UNIT RIGHT HEADLAMP RANGE ADJUSTMENT ACTUATOR MOTOR RIGHT HIGH BEAM RIGHT LOW BEAM SIG YEL WIRE

ACOUSTIC TURN SIGNAL LIGHT FUNCTION CHECK ANTILOCK BRAKE SYSTEM IND LAMP BLK WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/ORG WIRE BLU/VIO WIRE BLU/WHT WIRE BRAKE SYSTEM WARNING LAMP BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CAN E H CAN E L COLLISION PREVENTION ASSIST WARNING LAMP COMPUTER DATA COMPUTER DATA LINES SYSTEM COOLANT LEVEL SWITCH COOLANT TEMPERATURE GAUGE COOLANT TEMPERATURE WARNING LAMP DISTRONIC WARNING LAMP ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRONIC STABILITY PROGRAM WARNING LAMP ENGINE DIAGNOSIS INDICATOR LAMP ESP/ASR OFF WARNING LAMP FRONT FOG LAMPS INDICATOR LAMP FUEL LEVEL INDICATOR GAUGE FUEL RESERVE INDICATOR LAMP FUSE 73 FUSE 84 FUSE 88 GEAR INDICATOR (PRND) GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE HIGH BEAM INDICATOR LAMP HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT ILLUMINATION INSTRUMENT ILLUMINATION BRIGHTNESS CONTROL LEFT TURN SIGNAL IND LAMP LIN 1 LINES SYSTEM LOW BEAM INDICATOR LAMP MULTI-FUNCTION DISPLAY NCA WIRE ORG/BLU WIRE OUTSIDE TEMPERATURE SENSOR PARKING BRAKE INDICATOR LAMP REAR FOG LAMP INDICATOR LAMP RED WIRE RED/BLK WIRE RED/WHT WIRE RETROFIT HEAD-UP DISPLAY RIGHT TURN SIGNAL IND LAMP SAM CONTROL UNIT (LEFT END OF DASH) SEAT BELT WARNING LAMP SIG SPEEDOMETER STANDING LAMPS INDICATOR LAMP SUPPLEMENTAL RESTRAINT SYSTEM INDICATOR LAMP SW 1 SW 3 SW 4 SW 6 TACHOMETER TIRE PRESSURE MONITOR WARNING LAMP TRANSMISSION MODE DISPLAY VEHICLE INTERIOR FUSE BOX W/ DISTRONIC PLUS W/ HEAD UP DISPLAY WHT WIRE YEL/BLU WIRE

ATA (EDW) FUNCTION IND AUTOMATIC CHILD SEAT RECOGNITION AIR BAG OFF IND LAMP AUTOMATIC TRANSMISSION MODE BUTTON BLU WIRE BLU/BRN WIRE BLU/ORG WIRE BLU/VIO WIRE BLU/WHT WIRE BRAKE FLUID LEVEL SWITCH BRN WIRE CAN C H CAN C L COMPUTER DATA LINES SYSTEM DOWNHILL SPEED REGULATION BUTTON DRIVER SEAT BELT BUCKLE RESTRAINT SYSTEM SWITCH DYNAMIC SELECT SWITCH ECO START/ STOP FUNCTION BUTTON ELECTRIC PARKING BRAKE SWITCH FUEL PRESSURE SENSOR (TOP OF FUEL TANK) FUEL PUMP CONTROL UNIT GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/ORG WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE HAZARD WARNING SYSTEM BUTTON LEFT FRONT HEATED SEAT BUTTON LEFT FUEL TANK FUEL LEVEL INDICATOR FILL LEVEL SENSOR LIN 1 M TRANSMISSION MODE BUTTON NCA WIRE OFFROAD PROGRAM BUTTON ORG/BLU WIRE PARKING SYSTEM BUTTON RED/WHT WIRE RIGHT FRONT BRAKE WEAR SENSOR RIGHT FRONT HEATED SEAT BUTTON RIGHT FUEL TANK FUEL LEVEL INDICATOR FILL LEVEL SENSOR SIG STATIONARY HEATER BUTTON SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT UPPER CONTROL PANEL CONTROL UNIT YEL WIRE

AUTOMATIC CHILD SEAT RECOGNITION AIR BAG OFF IND LAMP BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/PNK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/WHT WIRE BRN/YEL WIRE C SIG CENTER REAR SEAT BELT BUCKLE SWITCH COMPUTER DATA LINES SYSTEM FRONT PASSENGER SEAT OCCUPIED RECOGNITION, ACSR FUSE 94 FUSE 95 GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HOT W/ CIRCUIT LEFT REAR EMERGENCY TENSIONING RETRACTOR SQUIB LEFT REAR SEAT BELT BUCKLE SWITCH LEFT REAR SIDE BAG SQUIB ME-SFI (ME) CONTROL UNIT ORG/BLU WIRE PNK WIRE PNK/BRN WIRE PNK/YEL WIRE PS (+) PYROFUSE RED/GRN WIRE RED/YEL WIRE RIGHT REAR EMERGENCY TENSIONING RETRACTOR SQUIB RIGHT REAR SEAT BELT BUCKLE SWITCH RIGHT REAR SIDE BAG SQUIB SAM CONTROL UNIT SIG SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT UPPER CONTROL PANEL CONTROL UNIT VEHICLE INTERIOR FUSE BOX VIO/BLU WIRE VIO/GRN WIRE W/O AUTOMATIC CHILD SEAT RECOGNITION WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE ZP (+) GND ZP (-)

BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN E H CAN E L COMPUTER DATA LINES SYSTEM DRIVER ETR (GUS) SQUIB DRIVER SIDE BAG SQUIB EMERGENCY CALL SYSTEM CONTROL UNIT FRONT PASSENGER BELT FORCE LIMITER FRONT PASSENGER ETR (GUS) SQUIB FRONT PASSENGER SEAT OCCUPIED RECOGNITION FRONT PASSENGER SIDE BAG SQUIB FUSE 38 GRN WIRE GRN/ORG WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE HERMES CONTROL UNIT HOT W/ LEFT FRONTAL ACCELERATION SENSOR LEFT SIDE BAG SENSOR LEFT WINDOW BAG SQUIB ORG/BLU WIRE ORG/BRN WIRE RED/BLK WIRE RED/BLU WIRE RED/VIO WIRE RED/YEL WIRE RELAY ENERGIZED RIGHT FRONTAL ACCELERATION SENSOR RIGHT SIDE BAG SENSOR RIGHT WINDOW BAG SQUIB SIG SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT VEHICLE INTERIOR FUSE BOX VIO WIRE VIO/GRY WIRE VIO/ORG WIRE W/ EMERGNCY CALL ASSISTANCE SYSTEM W/O EMERGNCY CALL ASSISTANCE SYSTEM WHT/BRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE ZP (-) ZP (-) C SIG