Mercedes-Benz GLB-class X247 facelift (2023-2024) engine compartment fuse, relay module Wiring diagrams

BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE CAN B H CAN B H STERN CAN B L CENTER ENGINE HOOD CONTACT SWITCH CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM DCS DRIVER DOOR AMBIANCE ILLUMINATION DRIVER DOOR CENTRAL LOCKING INSIDE DOOR HANDLE SWITCH DRIVER DOOR CONTROL UNIT DRIVER DOOR HANDLE AMBIANCE ILLUMINATION DRIVER DOOR LOCK DRIVER DOOR POCKET LIGHTING ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 156 FUSE 21 GRN WIRE GRN/RED WIRE GRY/RED WIRE HOT AT ALL TIMES LED LIN MOT- PNK/VIO WIRE PNK/WHT WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE SIG SIG (1) SIG (2) SIG GND TRUNK LID/LIFTGATE EXTERNAL OPERATION BUTTON TRUNK LID/LIFTGATE LOCK TRUNK LID/LIFTGATE UNLOCKING BUTTON VEHICLE INTERIOR FUSE, RELAY MODULE VIO/PNK WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE

BLU WIRE BLU/WHT WIRE BRN WIRE CAN HMI H CAN HMI L CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE FLEXRAY E BP PNK FLEXRAY E BM WIRE FUSE 109 FUSE 49 GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL UNIT NCA WIRE P NOT RED WIRE RED/GRN WIRE RED/ORG WIRE SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL DOWNSHIFT BUTTON STEERING WHEEL ELECTRONICS STEERING WHEEL UPSHIFT BUTTON VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE VIO/WHT WIRE

BLK WIRE BLK/RED WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CAN PER H CAN PER L CLA/GLB CLASS COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR COOLANT THERMOSTAT HEATING ELEMENT DRIVETRAIN CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE ENGINE COMPARTMENT PREFUSE BOX FAN MOTOR FUSE 102 FUSE 103 FUSE 14 FUSE 143 FUSE 27 FUSE 41 FUSE 54 GLA CLASS GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ ME-SFI (ME) CONTROL UNIT NCA WIRE POWER SUPPLY POTENTIAL DISTRIBUTOR 3 RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RELAY ENERGIZED SIG SIG GND VEHICLE INTERIOR FUSE, RELAY MODULE

BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE CAN B H CAN B H STERN CAN B L CENTER ENGINE HOOD CONTACT SWITCH CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM DCS DRIVER DOOR AMBIANCE ILLUMINATION DRIVER DOOR CENTRAL LOCKING INSIDE DOOR HANDLE SWITCH DRIVER DOOR CONTROL UNIT DRIVER DOOR HANDLE AMBIANCE ILLUMINATION DRIVER DOOR LOCK DRIVER DOOR POCKET LIGHTING ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 156 FUSE 21 GRN WIRE GRN/RED WIRE GRY/RED WIRE HOT AT ALL TIMES LED LIN MOT- PNK/VIO WIRE PNK/WHT WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE SIG SIG (1) SIG (2) SIG GND TRUNK LID/LIFTGATE EXTERNAL OPERATION BUTTON TRUNK LID/LIFTGATE LOCK TRUNK LID/LIFTGATE UNLOCKING BUTTON VEHICLE INTERIOR FUSE, RELAY MODULE VIO/PNK WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE

BL (+) BL/TSI (+) BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BUL (+) CAN B H STERN CAN B L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 21 GRY/BLU WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT REAR LAMP UNIT RED WIRE RIGHT REAR LAMP UNIT VIO/BLK WIRE

14 KLA SIG 58 D AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CENTRAL CONTROL MODULE CLUTCH DOOR LOCKS SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE EXTERIOR LIGHTS, ANTI-LOCK BRAKES SYSTEMS FUSE 21 FUSE 40 FUSE 42 FUSE 68 GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE HAZARD SIG HEADLIGHTS SYSTEM HORNS SYSTEM HOT AT ALL TIMES HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED ILLU INSTRUMENT CLUSTER SYSTEM LIN PNK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/RED WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/BLU WIRE RED/PNK WIRE RED/VIO WIRE RED/YEL WIRE SIG SIG (1) SIG (2) STARTING/CHARGING SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM VALVE (+) 31 VIO WIRE VIO/BLK WIRE WIPER/WASHER SYSTEM YEL WIRE YEL/GRN WIRE YEL/GRY WIRE

BLK WIRE BLK/RED WIRE BLK/VIO WIRE BLU/BRN WIRE BRN WIRE BRN/RED WIRE CAN B H STERN CAN B L CAN PER H CAN PER L CENTER STOP LAMP CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 21 FUSE 22 FUSE 24 FUSE 48 GRN WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/WHT WIRE HAZARD SIG HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT FRONT LAMP UNIT LEFT LICENSE PLATE LAMP NCA WIRE PNK WIRE PNK/RED WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT RIGHT LICENSE PLATE LAMP SIG VIO WIRE VIO/BLK WIRE VIO/GRN WIRE WHT/ORG WIRE YEL/WHT WIRE

ALTERNATOR BACKUP RELAY BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLU WIRE BRN WIRE CENTRAL CONTROL MODULE DRIVETRAIN CONTROL UNIT ELECTRICAL POWER STEERING CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE ENGINE COMPARTMENT PREFUSE BOX FAN MOTOR FROM ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 6 OF 6) FUSE 1 FUSE 12 FUSE 13 FUSE 14 FUSE 2 FUSE 3 FUSE 40 FUSE 41 FUSE 42 FUSE 43 FUSE 44 FUSE 47 FUSE 48 FUSE 49 FUSE 52 FUSE 53 FUSE 76 FUSE 78 GRN WIRE ME-SFI (ME) CONTROL UNIT N/A NCA WIRE NOT USED ON-BOARD ELECTRICAL SYSTEM BATTERY RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT SHORT, LONG-RANGE RADAR SENSOR TO BACKUP RELAY (DIAGRAM 2 OF 6) TO VEHICLE INTERIOR FUSE, RELAY MODULE (DIAGRAM 4 OF 6) VOLTAGE DIP LIMITER WIPER MOTOR

BRN WIRE BRN/BLK WIRE BRN/YEL WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE EXTERIOR LIGHTS, ELECTRIC PARKING BRAKE SWITCH GROUP FLEX-E BM FLEX-E BP FUSE 24 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INSTRUMENT CLUSTER CONTROL UNIT LEFT ELECTRIC PARKING BRAKE ACTUATOR MOTOR PNK WIRE RED WIRE RED/BLK WIRE RED/YEL WIRE RIGHT ELECTRIC PARKING BRAKE ACTUATOR MOTOR SIG VIO WIRE VIO/WHT WIRE

BATTERY SENSOR BATTERY TERMINAL PYROFUSE BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN C H CAN C L CENTRAL CONTROL MODULE CHARGING CIRCUIT CIRCUIT 50 RELAY COMPUTER DATA LINES SYSTEM ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE FLEX-E BM FLEX-E BP FUSE 73 FUSE 75 GLA/GLB CLASS GRN WIRE GRN/WHT WIRE HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED LIN ME-SFI (ME) CONTROL UNIT NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY ORG/ WIRE PNK WIRE RED WIRE RED/WHT WIRE SIG START/STOP BUTTON W/ ECO START/STOP FUNCTION BUTTON STARTER STEERING COLUMN MODULE CONTROL UNIT STERN VIO/WHT WIRE VIO/YEL WIRE VOLTAGE DIP LIMITER WHT WIRE YEL/RED WIRE