Mercedes-Benz GLA-class X156 facelift (2017-2020) red/blk Wiring diagrams

15 SIG ANTILOCK BRAKE SYSTEM IND LAMP BLK/BRN WIRE BLK/GRN WIRE BLK/RED WIRE BLS H BLS L BLU/GRN WIRE BLU/YEL WIRE BRAKE SYSTEM WARNING LAMP IND BRAKE VACUUM SENSOR BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM ELECTRONIC STABILITY PROGRAM CONTROL UNIT ELECTRONIC STABILITY PROGRAM WARNING LAMP IND ENGINE COMPARTMENT FUSE, RELAY MODULE ESP/ASR OFF WARNING LAMP IND FUSE 204 FUSE 218 FUSE 230 FUSE 237 FUSE 88 GRN WIRE GRN/BRN WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED INSTRUMENT CLUSTER PARKING BRAKE IND. RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE SIG STOP LAMP SWITCH VEHICLE INTERIOR FUSE BOX WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE

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

ATA (EDW)/TOWING SENSOR/INTERIOR MOTION SENSOR CONTROL UNIT BLK WIRE BLK/VIO WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN C H CAN C L CAN E H CAN E L CENTRAL LOCKING MOTOR COMPUTER DATA LINES SYSTEM DUAL CLUTCH TRANSMISSION FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT FUSE 24 FUSE 26 FUSE 85 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT DOOR EXIT, WARNING LAMP LEFT FRONT DOOR HANDLE ILLUMINATION MOT- REAR WINDOW GLASS BREAKAGE SENSOR RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RIGHT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR EXIT, WARNING LAMP RIGHT FRONT DOOR HANDLE ILLUMINATION RIGHT FRONT DOOR LOCK ROTARY TUMBLER SWITCH SIG VEHICLE INTERIOR FUSE BOX WHT WIRE

30 AB 30 FH 30 IB SRA AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/ORG WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CENTER ENGINE HOOD CONTACT SWITCH COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM ELV SIG ENGINE COMPARTMENT FUSE, RELAY MODULE ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS, HEADLIGHTS SYSTEMS FRA-L FRA-R FRONT ELECTRICAL PREFUSE BOX FUSE 236 FUSE 25 FUSE 4 FUSE 79 FUSE 80 GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE HEADLIGHTS SYSTEM HORN RLY HORNS SYSTEM HOT AT ALL TIMES I/P INSTRUMENT CLUSTER SYSTEM LIN-B 15 MOT- ORG/BLU WIRE PLR PLTFL R (+) PLTFL L (+) SIG PLTFL L (+) UPLTFL R PLTFL R (+) GND SIG POWER DISTRIBUTION SYSTEM RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SAM CONTROL UNIT (LEFT END OF DASH) SIG SIG (1) SIG (2) SIG 3 STARTING/CHARGING SYSTEM UPLTFL L (+) VEHICLE INTERIOR FUSE BOX VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE WIPER/WASHER SYSTEM WMV A/D WMV PP WMV WS WSA YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

AUDIO AUDIO H AUDIO L+ AUDIO/COMAND DISPLAY BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN A H CAN A L CAN C H CAN C L COMPUTER DATA LINES SYSTEM ENGINE SOUND CONTROL UNIT FL H FL L FR H FR-L FUSE 103 FUSE 104 FUSE 110 FUSE 33 FUSE 37 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES LVDS NCA WIRE ORG/ WIRE PNK WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/VIO WIRE RED/YEL WIRE RIGHT FRONT DOOR SPEAKER RIGHT MIRROR TRIANGLE TWEETER RIGHT REAR DOOR SPEAKER RL H RL L RR H RR-L SHIELD STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL CLOCK SPRING CONTACT VEHICLE INTERIOR FUSE BOX VIO WIRE W/ ENGINE SOUND CONTROL UNIT W/O ENGINE SOUND CONTROL UNIT W/O LIVE TRAFFIC INFORMATION W/ LIVE TRAFFIC INFORMATION W/ MULTIMEDIA W/O MULTIMEDIA WAKE-UP WHT WIRE YEL WIRE YEL/BLU WIRE

A GPS A TEL ACCEPT/ TERMINATE PHONE CALL BUTTON BACK, VOICE CONTROL BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE BUTTON +, - FOR SETTING SPECIFIC FUNCTIONS, VOLUME CONTROL C SIG CAN-D H CAN-D L CENTER INSTRUMENT PANEL SPEAKER COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM CONTROL UNIT GPS ANTENNA GRN WIRE GRN/ORG WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE HERMES CONTROL UNIT LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP MF (-) MULTI-FUNCTION ANTENNA MUTE FUNCTION BUTTON NCA WIRE OK BUTTON ORG/ WIRE PNK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RESET, BACK BUTTON RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SCROLL FORWARD/ BACK BUTTON SHIELD SIG SOUND SYSTEM AMPLIFIER CONTROL UNIT STEERING WHEEL ELECTRONICS (IN STEERING WHEEL) SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SYSTEM OFF BUTTON SYSTEM SELECTION BUTTON TEL ST USB D- USB GND VOICE CONTROL SYSTEM ON BUTTON W/ EMERGENCY CALL/ ASSISTANCE SYSTEM W/ NAVIGATION W/ SOUND SYSTEM W/ TELEMATICS W/O NAVIGATION W/O SOUND SYSTEM WHT WIRE YEL WIRE YEL/BLU WIRE

AMBIENT LAMP BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE CAN E H CAN E L COMPUTER DATA LINES SYSTEM D/L FRONT DOME LAMP SWITCH FUSE 23 FUSE 24 FUSE 39 FUSE 59 FUSE 60 FUSE 65 FUSE 91 GARAGE DOOR OPENER GARAGE DOOR OPENER INDICATOR LAMP GLOVE BOX LAMP) GLOVE BOX LAMP/ SWITCH GRN WIRE GRN/BRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ CIRCUIT INSIDE REAR VIEW MIRROR INSTRUMENT CLUSTER INTERIOR LAMP AUTOMATIC FUNCTION SWITCH LEFT FRONT MIRROR LAMP SWITCH LEFT FRONT READING LAMP SWITCH LEFT INSIDE REAR VIEW MIRROR INTERIOR LAMP LEFT LUGGAGE COMPARTMENT LAMP LEFT MOUNTING CONSOLE INCIDENT ILLUMINATION LEFT REAR INTERIOR/ READING LAMP LEFT SUN VISOR MIRROR LAMP LIGHT SENSOR (-) LL (+) ORG/ WIRE ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT RAIN/LIGHT SENSOR REAR DOME LAMP, SWITCH RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT MIRROR LAMP SWITCH RIGHT FRONT READING LAMP SWITCH RIGHT INSIDE REAR VIEW MIRROR INTERIOR LAMP RIGHT MOUNTING CONSOLE INCIDENT ILLUMINATION RIGHT REAR INTERIOR/ READING LAMP RIGHT SUN VISOR MIRROR LAMP SUN VISORS W/ ILLUMINATED MIRRORS TRUNK LID/ LIFTGATE EXTERNAL OPERATION SWITCH VEHICLE INTERIOR FUSE BOX VIO WIRE VIO/BLU WIRE W/ RAIN SENSOR W/O RAIN SENSOR

A NOT ANTI-THEFT ALARM SYSTEM/EMERGENCY CALL SYSTEM BUTTON GROUP BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE C SIG CAN B H CAN B L CAN L H CAN L L CAN-D H CAN-D L CENTER INSTRUMENT PANEL SPEAKER COMAND CONTROL UNIT COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM ANTENNA EMERGENCY CALL SYSTEM CONTROL UNIT FUSE 103 FUSE 82 GRN WIRE GRN/ORG WIRE GRY WIRE GRY/GRN WIRE GRY/WHT WIRE HOT AT ALL TIMES LIN B 13 MF (-) NCA WIRE ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT RED WIRE RED/BLK WIRE SHIELD SIG SOUND SYSTEM AMPLIFIER CONTROL UNIT SOUND SYSTEMS SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT TEL ST VEHICLE INTERIOR FUSE BOX W/ DVD CHANGER W/ SOUND AMPLIFIER W/O DVD CHANGER W/O SOUND AMPLIFIER WHT WIRE WHT/RED WIRE WHT/YEL WIRE

BLU WIRE BLU/BRN WIRE BLU/ORG WIRE BLU/VIO WIRE BLU/WHT WIRE BRAKE FLUID LEVEL SWITCH BRAKE SYSTEM WARNING LAMP BRN WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER SEAT BELT BUCKLE RESTRAINT SYSTEM SWITCH ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRIC PARKING BRAKE SWITCH ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 23 FUSE 236 FUSE 38 FUSE 73 FUSE 88 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/ORG WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR LOCK LEFT FRONT DOOR ROTARY TUMBLER SWITCH MULTI-FUNCTION DISPLAY NCA WIRE ORG/BLU WIRE PARKING BRAKE INDICATOR LAMP RED WIRE RED/BLK WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT BRAKE WEAR SENSOR SAM CONTROL UNIT SEAT BELT WARNING LAMP SIG SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SW 1 SW 3 SW 4 SW 6 VEHICLE INTERIOR FUSE BOX W/ HEAD UP DISPLAY YEL WIRE

BLU WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM FUSE 88 FUSE 99 GRY WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT TIRE PRESSURE SENSOR LEFT REAR TIRE PRESSURE SENSOR RED WIRE RED/BLK WIRE RED/GRY WIRE RIGHT FRONT TIRE PRESSURE SENSOR RIGHT REAR TIRE PRESSURE SENSOR TIRE PRESSURE MONITOR CONTROL UNIT TIRE PRESSURE MONITOR WARNING LAMP VEHICLE INTERIOR FUSE BOX W/ HEAD UP DISPLAY