Mercedes-Benz GLA-class X156 facelift (2017-2020) left front door control unit Wiring diagrams

ATA (EDW) FUNCTION IND BLK/VIO WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CENTRAL LOCKING MOTOR COMPUTER DATA LINES SYSTEM DATA DRIVER DOOR INFRARED REMOTE CONTROL RECEIVER DRIVER SIDE POWER WINDOW, OUTSIDE MIRROR ADJUSTMENT SWITCH ELECTRONIC IGNITION SWITCH CONTROL UNIT FT DF FUSE 23 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR LOCK LEFT REAR DOOR LOCK MOT- ORG/BLU WIRE PNK WIRE PNK/BLU WIRE PNK/WHT WIRE PNK/YEL WIRE REAR SIDE WINDOW CHILD SAFETY LOCK SWITCH RED/BLK WIRE RIGHT REAR DOOR LOCK ROTARY TUMBLER SWITCH SIG UPPER CONTROL PANEL CONTROL UNIT VEHICLE INTERIOR FUSE BOX WHT WIRE

AMBIANCE ILLUMINATION BLK/VIO WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM GRN WIRE GRN/GRY WIRE GRY/WHT WIRE LEFT FRONT DOOR AMBIANCE ILLUMINATION LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR EXIT, WARNING LAMP LEFT FRONT DOOR HANDLE ILLUMINATION LEFT FRONT DOOR LOCK LEFT FRONT DOOR ROTARY TUMBLER SWITCH LEFT REAR READING LAMP LEFT REAR READING LAMP SWITCH NCA WIRE REAR AMBIENT LAMP REAR DOME LAMP REAR DOME LAMP (W/ READING LAMPS) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR AMBIANCE ILLUMINATION RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR EXIT, WARNING LAMP RIGHT FRONT DOOR HANDLE ILLUMINATION RIGHT FRONT DOOR LOCK RIGHT FRONT DOOR ROTARY TUMBLER SWITCH RIGHT REAR READING LAMP RIGHT REAR READING LAMP SWITCH SIG W/ EXTERIOR LIGHT, VISION PACKAGE W/O W/O EXTERIOR LIGHT, VISION PACKAGE W/O INCREASED THEFT PROTECTION W/ INCREASED THEFT PROTECTION WHT WIRE

AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BLK WIRE BLU WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FRONT ELECTRICAL PREFUSE BOX FUSE 2 FUSE 23 FUSE 24 FUSE 34 FUSE 35 30 GRN WIRE HEATED REAR WINDOW RELAY HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LEFT OUTSIDE MIRROR MIRROR HEATER REAR WINDOW HEATER REAR WINDOW HEATER BUTTON REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR RED WIRE RED/BLK WIRE RED/BLU WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTSIDE MIRROR VEHICLE INTERIOR FUSE BOX WHT WIRE YEL/RED WIRE

ABL L ABL R ACOUSTIC TURN SIGNAL LIGHT FUNCTION CHECK ACTIVE CURVE ILLUMINATION ACTUATOR MOTOR BLK WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN E H CAN E L CENTER STOP LAMP COMPUTER DATA LINES SYSTEM CORNERING ILLUMINATION ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRIC PARKING BRAKE SWITCH EXTERIOR LIGHTS LED ACTUATION MODULE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/BLU WIRE HEADLAMP CONTROL UNIT INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL UNIT LEFT FRONT LAMP UNIT LEFT OUTSIDE MIRROR LEFT TURN SIGNAL IND LIGHT MULTI-FUNCTION DISPLAY ORG/BLK WIRE OUTSIDE MIRROR AMBIENT LAMP OUTSIDE MIRROR TURN SIGNAL LAMP PARKING LIGHT, STANDING LIGHT PARKING LIGHT, STANDING LIGHT, DAYTIME RUNNING LIGHT RED WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTSIDE MIRROR RIGHT TURN SIGNAL IND LIGHT SIDE MARKER LAMP SW 1 SW 3 SW 4 SW 6 TURN SIGNAL LAMP TURN SIGNAL LIGHT/ SIDE MARKER LIGHT W/ BI-XENON HEADLAMP W/O BI-XENON HEADLAMP WHT WIRE WHT/RED WIRE WHT/YEL WIRE YEL/WHT WIRE

ANTI-THEFT ALARM SYSTEM/EMERGENCY CALL SYSTEM BUTTON GROUP BLU WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L CAN E H CAN E L COMPUTER DATA LINES SYSTEM DRIVER TRUNK LID/LIFTGATE CONTROL BUTTON FOOTWELL ILLUMINATION SWITCH FUSE 23 FUSE 24 FUSE 82 FUSE 88 GRN WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT ILLUMINATION, INSTRUMENT ILLUMINATION BRIGHTNESS CONTROL LEFT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR HANDLE ILLUMINATION ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER-SIDE POWER WINDOW SWITCH RED WIRE RED/BLK WIRE RIGHT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR HANDLE ILLUMINATION SIG TRUNK LID RELEASE BUTTON VEHICLE INTERIOR FUSE BOX WHT WIRE WHT/YEL WIRE

ALTERNATOR AMPLIFIER CONTROL UNIT AUDIO COMAND CONTROL PANEL AUDIO/ COMAND DISPLAY AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BATTERY SENSOR BLK WIRE BLU WIRE BRN WIRE CONTROL UNIT) DECOUPLING RELAY DRIVER SEAT CONTROL UNIT DRIVER SEAT LUMBAR SUPPORT ADJUSTMENT CONTROL UNIT ECO START/ STOP FUNCTION ADDITIONAL BATTERY RELAY ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRICAL POWER STEERING CONTROL UNIT FAN MOTOR FRONT ELECTRICAL PREFUSE BOX FRONT PASSENGER SEAT CONTROL UNIT FRONT PASSENGER SEAT LUMBAR SUPPORT ADJUSTMENT CONTROL UNIT FUEL PUMP CONTROL UNIT FUSE 1 FUSE 2 FUSE 21 FUSE 22 FUSE 23 FUSE 24 FUSE 25 FUSE 27 FUSE 3 FUSE 32 FUSE 33 FUSE 34 FUSE 36 FUSE 37 FUSE 38 FUSE 39 FUSE 4 FUSE 46 FUSE 5 FUSE 54 FUSE 55 FUSE 56 FUSE 57 FUSE 58 FUSE 59 FUSE 6 FUSE 60 FUSE 61 FUSE 62 FUSE 63 FUSE 7 FUSE 73 FUSE 74 FUSE 75 FUSE 76 FUSE 77 FUSE 78 FUSE 8 FUSE 98 GRN WIRE GRY WIRE KEYLESS-GO CONTROL UNIT LEFT FRONT DOOR CONTROL UNIT N/A ON-BOARD ELECTRICAL SYSTEM BATTERY OVERHEAD CONTROL PANEL CONTROL UNIT PYROFUSE REAR SWITCHING MODULE RED WIRE RIGHT FRONT DOOR CONTROL UNIT SAM CONTROL UNIT SOUND SYSTEM STARTER STARTER FRONT-END RELAY STEERING COLUMN MODULE CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM TO ENGINE COMPARTMENT FUSE, RELAY MODULE (DIAGRAM 2 OF 5) TO ENGINE COMPARTMENT FUSE, RELAY MODULE (DIAGRAM 3 OF 5) TO FUSE 110 (DIAGRAM 2 OF 5) TO FUSE 47 (DIAGRAM 2 OF 5) TRAILER RECOGNITION CONTROL UNIT TRUNK LID/LIFT GATE CONTROL UNIT VEHICLE INTERIOR FUSE BOX VIO WIRE W/ MEMORY W/O KEYLESS-GO W/ KEYLESS-GO W/O MEMORY W/O START/STOP VOLTAGE DIP PROTECTION W/ START/STOP VOLTAGE DIP PROTECTION WHT WIRE YEL WIRE

A HF ADDITIONAL BATTERY AUX BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN-D H CAN-D L COMPUTER DATA LINES SYSTEM DUAL CLUTCH TRANSMISSION FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT ECO START/ STOP FUNCTION ADDITIONAL BATTERY RELAY ECO START/STOP FUNCTION ADDITIONAL BATTERY ELECTRONIC IGNITION SWITCH CONTROL UNIT FM, AM, CL (ZV) ANTENNA AMPLIFIER FROM VEHICLE INTERIOR FUSE BOX (DIAGRAM 2 OF 5) FT DF FUSE 26 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/WHT WIRE LEFT FRONT DOOR CONTROL UNIT ORG/ WIRE RED WIRE RED/YEL WIRE SAM CONTROL UNIT VEHICLE INTERIOR FUSE BOX W/ ECO START/STOP FUNCTION, W/O START/STOP VOLTAGE DIP PROTECTION W/O ECO START/STOP FUNCTION, W/ START/STOP VOLTAGE DIP PROTECTION

AMBIENT LAMP AUTOMATIC DIMMING MIRROR BLK WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FORWARD AUTOMATIC DIMMING MIRROR LIGHT SENSOR FUSE 23 FUSE 24 FUSE 82 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 GRN/BRN WIRE GRN/ORG WIRE GRN/RED WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HUMIDITY/ TEMPERATURE SENSOR INSIDE REAR VIEW MIRROR INSIDE REAR VIEW MIRROR DIMMING LEFT FRONT DOOR CONTROL UNIT LEFT INSIDE REAR VIEW MIRROR INTERIOR LAMP LEFT OUTSIDE MIRROR LIGHT SENSOR (IF EQUIPPED) ORG/ WIRE ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT RAIN SENSOR (IF EQUIPPED) RAIN/LIGHT SENSOR REARWARD AUTOMATIC DIMMING MIRROR LIGHT SENSOR RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT INSIDE REAR VIEW MIRROR INTERIOR LAMP RIGHT OUTSIDE MIRROR SAM CONTROL UNIT (LEFT END OF DASH) VEHICLE INTERIOR FUSE BOX VIO WIRE W/ EXTERIOR LIGHT, VISION PACKAGE YEL WIRE

BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/VIO WIRE BLU WIRE BLU/BRN WIRE BLU/YEL WIRE BRN WIRE BRN/PNK WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER SIDE POWER WINDOW, OUTSIDE MIRROR ADJUSTMENT SWITCH ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 23 FUSE 236 GRN WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR POWER WINDOW MOTOR LEFT FRONT POWER WINDOW SWITCH LEFT REAR POWER WINDOW SWITCH MOT- ORG/BRN WIRE ORG/WHT WIRE ORG/YEL WIRE PNK WIRE REAR SIDE WINDOW CHILD SAFETY LOCK SWITCH RED/BLK WIRE RED/GRN WIRE RIGHT FRONT POWER WINDOW SWITCH RIGHT REAR POWER WINDOW SWITCH S SIG SAM CONTROL UNIT (LEFT END OF DASH) SIG TFH O TFH S VEHICLE INTERIOR FUSE BOX YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE YEL/WHT WIRE

BLK WIRE BLU/BLK WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CENTRAL LOCKING MOTOR COMPUTER DATA LINES SYSTEM DRIVER TRUNK LID/ LIFTGATE CONTROL BUTTON FUEL FILLER/ SOCKET FLAP CENTRAL LOCKING ACTUATOR FUSE 23 FUSE 78 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/PNK WIRE HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT MOT- NCA WIRE ORG/ WIRE ORG/GRN WIRE RED WIRE RED/BLK WIRE S SIG SAM CONTROL UNIT (LEFT END OF DASH) SIG TRUNK LID EMERGENCY OPENING SWITCH TRUNK LID RELEASE BUTTON TRUNK LID/ LIFTGATE CONTROL BUTTON TRUNK LID/ LIFTGATE CONTROL ELECTRIC MOTOR TRUNK LID/ LIFTGATE CONTROL HALL SENSOR TRUNK LID/LIFTGATE CENTRAL LOCKING MOTOR TRUNK LID/LIFTGATE CONTROL DRIVE UNIT TRUNK LID/LIFTGATE CONTROL UNIT TRUNK LID/LIFTGATE CONTROL WARNING BUZZER TRUNK LID/LIFTGATE EXTERNAL OPERATION SWITCH TRUNK LID/LIFTGATE LOCKING ELEMENT TRUNK LID/LIFTGATE LOCKING PAWL SWITCH TRUNK LID/LIFTGATE ROTARY TUMBLER SWITCH VEHICLE INTERIOR FUSE BOX VIO WIRE VIO/BRN WIRE VIO/YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE