Mercedes-Benz B-class W246 facelift (2014-2018) (left front of engine compt) Wiring diagrams

15 SIG ABS IND. 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/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN E H CAN E L COMPUTER DATA LINES SYSTEM ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE ESP WARNING LAMP IND ESPA/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. PEDAL ANGLE SENSOR (B-CLASS) RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SIG SSK START STOP LAMP SWITCH VEHICLE INTERIOR FUSE BOX WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL/GRN WIRE

ACCELERATE, SET SWITCH ACCELERATOR PEDAL SENSOR BLK/GRN WIRE BLK/YEL WIRE BLS H BLS L BLU WIRE BLU/GRN WIRE BLU/WHT WIRE BLU/YEL WIRE BRN 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 (IF EQUIPPED) DISTRONIC ELECTRONIC CONTROLLER UNIT DISTRONIC WARNING LAMP IND DOWNHILL SPEED REGULATION BUTTON DRIVETRAIN CONTROL UNIT DUAL CLUTCH TRANSMISSION FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 203 FUSE 224 FUSE 32 GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/BRN WIRE HOT W/ CIRCUIT 15 RELAY ENERGIZED HOT W/ STARTER CIRCUIT 50 RELAY ENERGIZED INDICATOR SWITCH INSTRUMENT CLUSTER LEFT FRONT AXLE RPM SENSOR LEFT REAR AXLE RPM SENSOR LIN 1 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 UPPER CONTROL PANEL CONTROL UNIT VEHICLE INTERIOR FUSE BOX WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL 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 CLA CLASS CLA CLASS, GLA CLASS 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 SWITCH FUSE 229 FUSE 231 FUSE 237 FUSE 84 FUSE 89 GLA CLASS GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE HAZARD WARNING SYSTEM SWITCH HEADLAMP FLASHER/ HIGH BEAM SWITCH HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED ILLUMINATION SWITCH LEFT FRONT SIDE MARKER LAMP LIN 1 ORG/BLU WIRE PARKING LIGHT, STANDING LIGHT, DAYTIME RUNNING LIGHT PARKING LIGHT, STANDING LIGHT, HIGH BEAM, DAYTIME RUNNING LIGHT PL L (+) PL R (+) PLTFL L REAR FOG LIGHT SWITCH RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT RIGHT FRONT SIDE MARKER LAMP SIDE MARKER LAMP STANDING PARKING LAMPS STEERING COLUMN MODULE CONTROL UNIT STOP LAMP SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) 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/ XENON HEADLAMP W/ XENON HEADLAMP W/O XENON HEADLAMP W/O XENON HEADLAMP WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL/WHT WIRE

ALL-WHEEL DRIVE CONTROL UNIT AUDIO/COMAND CONTROL PANEL AUDIO/COMAND DISPLAY BACKUP CAMERA (IF EQUIPPED) BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE CAN A H CAN A L CAN C H CAN C L CAN-C H (IF EQUIPPED) CAN-C L COMAND CONTROL UNIT DRIVETRAIN CAN (CAN C) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR DUAL CLUTCH TRANSMISSION FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT ELECTRICAL POWER STEERING CONTROL UNIT FUEL PUMP CONTROL UNIT GRN WIRE GRN/WHT WIRE HEADLAMP CONTROL UNIT INSTRUMENT CLUSTER LEFT FRONT LAMP UNIT ME-SFI (ME) CONTROL UNIT MULTI-FUNCTION CAMERA PARKING SYSTEM CONTROL UNIT RIGHT FRONT LAMP UNIT TELEMATICS CAN (CAN A) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR TIRE PRESSURE MONITOR CONTROL UNIT W/ BI-XENON HEADLAMP UNIT, INTEGRATED CURVE ILLUMINATION W/O BI-XENON HEADLAMP UNIT, INTEGRATED CURVE ILLUMINATION

ADAPTIVE DAMPING SYSTEM CONTROL UNIT BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN V H CAN V L CENTER REAR OF LUGGAGE COMPT) COLLISION PREVENTION ASSIST CONTROLLER UNIT DISTRONIC ELECTRIC CONTROLLER UNIT DRIVETRAIN CONTROL UNIT ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT GATEWAY FOR POWER TRAIN CONTROL UNIT GRN WIRE GRN/WHT WIRE LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR LEFT REAR BUMPER INTELLIGENT RADAR SENSOR RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR RIGHT REAR BUMPER INTELLIGENT RADAR SENSOR STEERING COLUMN MODULE CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT W/ DISTRONIC PLUS W/ DISTRONIC PLUS W/O ACTIVE PARK ASSIST W/ ACTIVE PARK ASSIST W/ PRE- SAFE W/O DISTRONIC PLUS

BATTERY MANAGEMENT SYSTEM CONTROL UNIT BRN WIRE BRN/RED WIRE CAMERA COVER CONTROL UNIT CAN B H CAN B L CAN EL H CAN EL L CAN I H CAN I L CAN L H CAN L L CAN-EL L LV CHARGER CONTROL UNIT DC/DC CONVERTER CONTROL UNIT DRIVETRAIN SENSOR CAN (CAN I) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR ELECTRIC DRIVE CAN (CAN EL) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR 1 ELECTRIC DRIVE CAN (CAN EL) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR 2 ELECTRIC DRIVE CAN (CAN EL) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR 3 ELECTRIC VEHICLE SOUND GENERATOR EMERGENCY CALL SYSTEM CONTROL UNIT GATEWAY FOR POWERTRAIN CONTROL UNIT HYBRID CAN (CAN L) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR ME-SFI (ME) CONTROL UNIT NCA WIRE NOX SENSOR CONTROL UNIT PARK PAWL CONTROL UNIT POWER ELECTRONICS CONTROL UNIT RED/YEL WIRE TELEMATICS SERVICES COMMUNICATION MODULE THERMAL MANAGEMENT CONTROL UNIT TRUNK LID/ LIFTGATE CONTROL UNIT DRIVETRAIN CONTROL UNIT W/ EMERGENCY CALL SYSTEM W/O EMERGENCY CALL SYSTEM WHT WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRY WIRE YEL/RED WIRE

AUTOMATIC CHILD SEAT RECOGNITION AIR BAG OFF IND LAMP BLK WIRE BLK/GRN 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 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 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/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE ZP (+) GND ZP (-)

AUTOMATIC TRANSMISSION MODE BUTTON (W/O DYNAMIC SELECT) AUX BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN C H CAN C L CAN E H CAN E L CLA CLASS, GLA CLASS CLUTCH TEMPERATURE SENSOR COMPUTER DATA LINES SYSTEM CONTROL VALVE DIRECT SELECT LEVER DOUBLE CLUTCH DOUBLE CLUTCH TRANSMISSION DRIVE SHAFT RPM SENSOR DUAL CLUTCH TRANSMISSION FULLY INTEGRATED TRANSMISSION CONTROL UNIT DYNAMIC SELECT SWITCH ELECTRIC AUXILIARY OIL PUMP ELECTRONIC IGNITION SWITCH CONTROL UNIT EMS ENGINE COMPARTMENT FUSE, RELAY MODULE ENGINE SPEED SENSOR EXTENDED RANGE MODE BUTTON (B-CLASS) FUSE 217 FUSE 220 FUSE 32 FUSE 84 GEAR CONTROL CONTROL VALVE, GEAR CONTROL CONTROL VALVE, GEAR CYLINDER PRESSURE CONTROL VALVE CONTROL VALVE GEAR IND GRN WIRE GRN/WHT WIRE HALL SENSOR 1 HALL SENSOR 2 HALL SENSOR 3 HOT AT ALL TIMES HOT W/ CIRCUIT INSTRUMENT CLUSTER LIN 1 LIN 1 IP M TRANSMISSION MODE BUTTON ME-SFI (ME) CONTROL UNIT MOTOR NCA WIRE ORG/BLU WIRE PARK PAWL CONTROL UNIT CIRCUIT 87 RELAY PARK PAWL LIFT SOLENOID PARK PAWL POSITION SENSOR PRESSURE SENSOR PRND RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE SAM CONTROL UNIT (LEFT END OF DASH) SHIFT FORK SHIFT FORK POSITION POSITION SENSOR 3 SENSOR 1 SHIFT FORK SHIFT FORK POSITION POSITION SENSOR 4 SENSOR 2 SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL CLOCK SPRING CONTACT STEERING WHEEL DOWNSHIFT BUTTON STEERING WHEEL ELECTRONICS (IN STEERING WHEEL) STEERING WHEEL UPSHIFT BUTTON SYSTEM PRESSURE CONTROL VALVE PARK PAWL SWITCHOVER VALVE TRANSMISSION HOLLOW SHAFT RPM SENSOR TRANSMISSION MODE BUTTON TRANSMISSION MODE DISPLAY TRANSMISSION OIL COOLING COOLANT CIRCULATION PUMP UPPER CONTROL PANEL CONTROL UNIT VEHICLE INTERIOR FUSE BOX W/ DUAL CLUTCH TRANSMISSION YEL WIRE