Mercedes-Benz GLB-class X247 (2019-2023) central control 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 BRN/YEL WIRE CAN B H CAN B H STERN CAN B L CENTER ENGINE HOOD CONTACT SWITCH CENTRAL CONTROL MODULE CENTRAL LOCKING STATUS DISPLAY COMPUTER DATA LINES SYSTEM DCS DCS (+) DCS GND DRIVER DOOR AMBIANCE ILLUMINATION DRIVER DOOR CENTRAL LOCKING INSIDE DOOR HANDLE SWITCH DRIVER DOOR CONTROL UNIT DRIVER DOOR HANDLE AMBIANCE ILLUMINATION DRIVER DOOR HANDLE ILLUMINATION DRIVER DOOR LOCK DRIVER DOOR POCKET LIGHTING ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 156 FUSE 21 GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRY/RED WIRE HOT AT ALL TIMES LED LOCK UNLOCK MOT GND/(+) MOT- NCA WIRE PNK/BLU WIRE 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 W/ INCREASED THEFT PROTECTION WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE

BLK/GRN WIRE BLK/RED WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B H STERN CAN B L CENTRAL CONTROL MODULE CLA CLASS CLIMATE CONTROL OPERATING UNIT COMPUTER DATA LINES SYSTEM DRIVER DOOR CONTROL UNIT DRIVER SIDE OUTSIDE MIRROR FRONT PASSENGER DOOR CONTROL UNIT FUSE 121 FUSE 143 FUSE 156 FUSE 163 FUSE 165 FUSE 3 GLA CLASS GRN/VIO WIRE HEAT (+) HEAT GND HEAT GND HEATED REAR WINDOW RELAY HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED PASSENGER SIDE OUTSIDE MIRROR REAR WINDOW HEATER RED WIRE RED/BLU WIRE RED/GRN WIRE RED/ORG WIRE REF STARTER BATTERY PREFUSE BOX VEHICLE INTERIOR FUSE, RELAY MODULE

ACTIVE BRAKE ASSIST CONTROL UNIT ACTIVE DISTANCE ASSIST DISTRONIC ELECTRIC CONTROL UNIT BACKUP RELAY BATTERY DISCONNECT SWITCH RELAY BRN WIRE BRN/WHT WIRE CENTRAL CONTROL MODULE CIRCUIT 50 RELAY COOLANT CIRCULATION PUMP DRIVER SEAT LUMBAR SUPPORT PNEUMATIC PUMP ENGINE COMPARTMENT FUSE, RELAY MODULE FINE PARTICLE SENSOR FRONT PASSENGER MULTI-CONTOUR SEAT CONTROL UNIT FRONT PASSENGER SEAT CONTROL UNIT FRONT PASSENGER SEAT LUMBAR SUPPORT ELECTRO PNEUMATIC CONTROLLER UNIT FRONT PASSENGER SIDE BAG SQUIB LEFT FOG LAMP LEFT FRONT LAMP UNIT LOWER RADIATOR TRIM FLAP ACTUATOR MOTOR NCA WIRE REAR WINDOW HEATER RIGHT FANFARE HORN RIGHT FOG LAMP RIGHT FRONT LAMP UNIT RIGHT REAR SEAT BELT BUCKLE SWITCH RIGHT TABLET PC ELECTRICAL CONNECTOR SHORT, LONG-RANGE RADAR SENSOR SPRAY NOZZLE HOSE HEATER STARTER BATTERY PREFUSE BOX STATIONARY HEATER UNIT TRANSMISSION OIL COOLING COOLANT CIRCULATION PUMP UPPER RADIATOR TRIM FLAP ACTUATOR MOTOR VOLTAGE DIP LIMITER WIPER MOTOR

AC HOUSING, ADDITIONAL BATTERY AMBIANCE ILLUMINATION CONTROL UNIT BRN WIRE BRN/WHT WIRE CENTRAL CONTROL MODULE CIRCUIT 31 POTENTIAL DISTRIBUTOR 1 CLIMATE CONTROL OPERATING UNIT CYLINDER IGNITION COIL 1 CYLINDER IGNITION COIL 2 CYLINDER IGNITION COIL 3 CYLINDER IGNITION COIL 4 DIFFERENTIAL LOCK ACTUATOR ELECTRIC STABILITY (ESPA) POTENTIAL CONTROL UNIT FRONT PASSENGER DOOR CONTROL UNIT FRONT VEHICLE INTERIOR POWER OUTLET FUEL PUMP CONTROL UNIT GLOVE BOX LAMP) HEATED REAR WINDOW RELAY LEFT FANFARE HORN NCA WIRE PEDAL OPERATION MONITOR BUZZER RIGHT FRONT FOOTWELL LAMP RIGHT FRONT ILLUMINATED DOOR SILL MOLDING RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR RIGHT REAR DOOR CONTROL UNIT STATIONARY HEATER FUEL PUMP STATIONARY HEATER RADIO REMOTE CONTROL RECEIVER VEHICLE INTERIOR FUSE, RELAY MODULE

ALARM SIREN BACKUP CAMERA CONTROL UNIT BRN WIRE CENTER CENTER AIR VENT AMBIANCE ILLUMINATION CENTER CONSOLE CUP HOLDER AMBIANCE ILLUMINATION CENTER ENGINE HOOD CONTACT SWITCH CENTRAL CONTROL MODULE CHARGE AIR COOLER CIRCULATION PUMP DIAGNOSTIC CONNECTOR DRIVER-SIDE AIR VENT AMBIANCE ILLUMINATION DRIVETRAIN CONTROL UNIT DRIVETRAIN SENSOR CAN (CAN I) POTENTIAL DISTRIBUTOR ELECTRIC STEERING LOCK CONTROL UNIT ENGINE START/STOP BUTTON FRONT PASSENGER SIDE AIR VENT AMBIANCE ILLUMINATION HEAD UNIT HEAD UNIT/ INSTRUMENT CLUSTER CONTROL UNIT HEAD-UP DISPLAY HERMES CONTROL UNIT LEFT CENTER AIR VENT AMBIANCE ILLUMINATION LEFT CENTER CONSOLE AMBIANCE ILLUMINATION LEFT FRONT FOOTWELL AMBIANCE ILLUMINATION LEFT FRONT FOOTWELL LAMP LEFT REAR FOOTWELL AMBIANCE ILLUMINATION LOWER DRIVER-SIDE INSTRUMENT PANEL AMBIANCE ILLUMINATION LOWER PASSENGER-SIDE INSTRUMENT PANEL AMBIANCE ILLUMINATION NCA WIRE RIGHT CENTER AIR VENT AMBIANCE ILLUMINATION RIGHT CENTER CONSOLE AMBIANCE ILLUMINATION RIGHT FRONT BRAKE WEAR SENSOR RIGHT FRONT FOOTWELL AMBIANCE ILLUMINATION RIGHT REAR FOOTWELL AMBIANCE ILLUMINATION SOOT PARTICULATE SENSOR CONTROL UNIT STATIONARY HEATER SWITCHOVER VALVE UPPER DRIVER-SIDE INSTRUMENT PANEL AMBIANCE ILLUMINATION UPPER PASSENGER-SIDE INSTRUMENT PANEL AMBIANCE ILLUMINATION USER INTERFACE CAN (CAN HMI) POTENTIAL DISTRIBUTOR

BLK/GRN WIRE BLK/ORG WIRE BLU WIRE BLU/WHT WIRE BRAKE FLUID LEVEL SWITCH BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L STERN CAN HMI H CAN HMI L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM COOLANT LEVEL SWITCH FL 1 FL 2 FL-GND FUEL PRESSURE SENSOR FUEL PUMP CONTROL UNIT GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE HEAD-UP DISPLAY LEFT FUEL TANK FUEL LEVEL INDICATOR FILL LEVEL SENSOR NCA WIRE OUTSIDE TEMPERATURE SENSOR RED WIRE RIGHT FUEL TANK FUEL LEVEL INDICATOR FILL LEVEL SENSOR SIG SIG GND VIO WIRE VIO/WHT WIRE

BLK/BLU WIRE BLK/YEL WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN B H CAN B H STERN CAN B L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM DRIVER DOOR CONTROL UNIT DRIVER SIDE OUTSIDE MIRROR EC GND EC+ FRONT PASSENGER DOOR CONTROL UNIT FUSE 140 FUSE 156 FUSE 163 FUSE 169 GRN WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INSIDE REAR VIEW MIRROR NCA WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER SIDE OUTSIDE MIRROR RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/GRN WIRE RED/WHT WIRE VEHICLE INTERIOR FUSE, RELAY MODULE

BRAKE FLUID LEVEL SWITCH BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B H STERN CAN B L CAN H H CAN H L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM DCS (+) DCS GND DRIVER DOOR CONTROL UNIT DRIVER SEAT BELT BUCKLE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE EXTERIOR LIGHTS, ELECTRIC PARKING BRAKE SWITCH GROUP FUSE 112 FUSE 156 FUSE 21 FUSE 24 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/WHT WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LOCK UNLOCK MOT GND/(+) ORG/GRN WIRE PNK/BLU WIRE PNK/VIO WIRE PNK/WHT WIRE PNK/YEL WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE SIG SIG (1) SIG (2) SIG 3 SIG 4 SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT SUPPLEMENTAL RESTRAINTS SYSTEM VEHICLE INTERIOR FUSE, RELAY MODULE VIO/YEL WIRE W/ INCREASED THEFT PROTECTION WHT WIRE WHT/VIO WIRE

BLU WIRE BRN WIRE BRN/GRY WIRE CENTRAL CONTROL MODULE ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 166 FUSE 53 GRN/VIO WIRE GRY/RED WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LIN B NCA WIRE RED/GRN WIRE RED/GRY WIRE SHD A TEL SIG STATIONARY HEATER FUEL PUMP STATIONARY HEATER RADIO REMOTE CONTROL RECEIVER STATIONARY HEATER SWITCHOVER VALVE STATIONARY HEATER UNIT TELEPHONE ANTENNA SPLITTER VEHICLE INTERIOR FUSE, RELAY MODULE W/ AUTOMATIC AIR CONDITIONING

BLK/YEL WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L STERN CAN LR H CAN LR L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 169 FUSE 21 FUSE 44 HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED NCA WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE SIG SPRAY NOZZLE HOSE HEATER (W/ HEATED WINDSHIELD WASHER SYSTEM) STEERING COLUMN MODULE CONTROL UNIT VEHICLE INTERIOR FUSE, RELAY MODULE WINDSHIELD WASHER FLUID LEVEL INDICATOR SWITCH WIPER MOTOR