Mercedes-Benz B-class W246 facelift (2014-2018) (under left front of center console) Wiring diagrams

BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CAN A H CAN A L PNK ETH (+) WIRE CAN B L COMAND CONTROL UNIT COMAND FAN MOTOR COMPUTER DATA LINES SYSTEM DIAG CAN B H DIAGNOSTIC CONNECTOR ETH (-) ETH WS FUSE 42 FUSE 49 GRN WIRE GRY WIRE GRY/YEL WIRE HANDS-FREE SYSTEM MICROPHONE HOT W/ CIRCUIT LEFT FRONT DOOR SPEAKER LEFT MIRROR TRIANGLE TWEETER LEFT REAR DOOR SPEAKER LVDS MF (-) MOBILE PHONE CONTACT PLATE MOST DATA BUS CIRCUIT MOST IN MOST OUT MOST WS NCA WIRE ORG/ WIRE ORG/YEL WIRE PNK AS (+) WIRE PNK WIRE RED WIRE RED/GRN WIRE RED/YEL WIRE RIGHT FRONT DOOR SPEAKER RIGHT MIRROR TRIANGLE TWEETER SHIELD SHIELD LVDS (+) TEL ST TEL WS V SIG VEHICLE INTERIOR FUSE BOX VIO WIRE W/O SOUND SYSTEM WHT WIRE YEL/BLU WIRE

ACCEPT/ TERMINATE PHONE CALL BUTTON AUDIO/COMAND CONTROL PANEL AUDIO/COMAND CONTROLLER AUDIO/COMAND DISPLAY BACK BUTTON BACK, VOICE CONTROL SYSTEM OFF BUTTON BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/PNK WIRE BRN/WHT WIRE BUTTON +, - FOR SETTING SPECIFIC FUNCTIONS, VOLUME CONTROL CAN A H CAN A L CAN E H CAN E L COMPUTER DATA LINES SYSTEM DELETE BUTTON FUSE 104 FUSE 33 FUSE 37 GRN WIRE GRN/ORG WIRE GRN/WHT WIRE GRY/BLU WIRE HOT W/ CIRCUIT LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP LVDS MUTE FUNCTION BUTTON NCA WIRE OK BUTTON ORG/ WIRE PNK WIRE RED WIRE RED/BLU WIRE RED/VIO WIRE RED/YEL WIRE RESET, BACK BUTTON RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP RIGHT REAR DOOR SPEAKER SCROLL FORWARD/ BACK BUTTON SHIELD SIG SIG PNK SIG WIRE STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL CLOCK SPRING CONTACT STEERING WHEEL ELECTRONICS SYSTEM SELECTION BUTTON VEHICLE INTERIOR FUSE BOX VOICE CONTROL SYSTEM ON BUTTON W/O SOUND SYSTEM YEL WIRE YEL/BLU 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

BLK/GRY WIRE BLK/VIO WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER SEAT CONTROL UNIT (UNDER DRIVER SEAT) FRONT PASSENGER SEAT CONTROL UNIT FUSE 36 FUSE 46 FUSE 59 FUSE 60 FUSE 84 GRY/BLK WIRE HOT AT ALL TIMES HOT W/ CIRCUIT LEFT FRONT BACKREST HEATED CUSHION LEFT FRONT HEATED SEAT BUTTON LEFT FRONT SEAT SITTING SURFACE HEATED CUSHION LIN 1 LIN IP ORG/BLU WIRE RED/BLK WIRE RED/BRN WIRE RED/WHT WIRE RIGHT FRONT BACKREST HEATED CUSHION RIGHT FRONT HEATED SEAT BUTTON RIGHT FRONT SEAT SITTING SURFACE HEATED CUSHION SAM CONTROL UNIT (LEFT END OF DASH) UPPER CONTROL PANEL CONTROL UNIT VEHICLE INTERIOR FUSE BOX

BLK WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN E H CAN E L CENTER HORNS BUTTON COMPUTER DATA LINES SYSTEM DECOUPLING RELAY ENGINE COMPARTMENT FUSE, RELAY MODULE FANFARE HORN RELAY FRONT ELECTRICAL PREFUSE BOX FUSE 205 FUSE 32 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES LEFT FANFARE HORN LEFT FANFARE HORN SYSTEM BUTTON NCA WIRE RED WIRE REL FF RELAY ENERGIZED RIGHT FANFARE HORN RIGHT FANFARE HORN SYSTEM BUTTON SAM CONTROL UNIT (LEFT END OF DASH) STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL CLOCK SPRING CONTACT STEERING WHEEL ELECTRONICS VEHICLE INTERIOR FUSE BOX W/O ECO START/STOP FUNCTION YEL WIRE YEL/BLK WIRE

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

ASHTRAY ILLUMINATION BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BRN WIRE BRN/GRN WIRE CIGARETTE LIGHTER HEATING ELEMENT CIRCUIT 87 RELAY COMAND CONTROL UNIT COMAND FAN MOTOR DRIVE KIT CONTROL UNIT FOR IPHONE DRIVETRAIN CONTROL UNIT DUAL CLUTCH TRANSMISSION FULLY INTEGRATED CONTROL UNIT ELECTRIC REFRIGERANT COMPRESSOR ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE FROM CIRCUIT 15 RELAY (DIAGRAM 2 OF 6) FROM FUSE 39 (DIAGRAM 1 OF 6) FROM FUSE 79 (DIAGRAM 2 OF 6) FROM VEHICLE INTERIOR FUSE BOX (DIAGRAM 1 OF 6) FRONT CIGAR LIGHTER W/ ASHTRAY ILLUMINATION FRONT PASSENGER SEAT CONTROL UNIT FRONT PASSENGER SEAT LUMBAR SUPPORT ADJUSTMENT CONTROL UNIT FUSE 100 FUSE 217 FUSE 218 FUSE 222 FUSE 234 FUSE 241 FUSE 40 FUSE 41 FUSE 42 FUSE 43 FUSE 44 FUSE 45 FUSE 46 FUSE 47 FUSE 48 FUSE 49 FUSE 69 FUSE 70 FUSE 71 FUSE 72 FUSE 97 GRY/BLU WIRE HEATED REAR WINDOW RELAY HIGH-VOLTAGE PTC HEATER LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR LUGGAGE COMPARTMENT SOCKET MOBILE PHONE CONTACT PLATE N/A PANORAMIC SLIDING ROOF CONTROL MODULE REAR CENTER CONSOLE POWER OUTLET RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/PNK WIRE RED/WHT WIRE RESERVE FUSE 216 RESERVE FUSE 233 RESERVE FUSE 235 RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR SAM CONTROL UNIT TO CIRCUIT TO FUSE 99 (DIAGRAM 4 OF 6) TO HIGH-VOLTAGE POWER DISTRIBUTOR (DIAGRAM 6 OF 6) VEHICLE INTERIOR FUSE BOX (RIGHT FRONT FOOTWELL) VEHICLE INTERIOR POWER OUTLET W/ ASHTRAY PACKAGE/SMOKER PACKAGE W/O ASHTRAY PACKAGE/SMOKER PACKAGE W/ MEMORY W/ PRE- SAFE W/O MEMORY

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 DRIVER SEAT CONTROL UNIT 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 FUSE 56 (DIAGRAM 1 OF 6) FROM VEHICLE INTERIOR FUSE BOX (DIAGRAM 2 OF 6) FT DF FUSE 23 FUSE 24 FUSE 25 FUSE 26 FUSE 60 FUSE 78 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/WHT WIRE LEFT FRONT DOOR CONTROL UNIT ORG/ WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTROL UNIT SAM CONTROL UNIT TRUNK LID/ LIFT GATE CONTROL UNIT VEHICLE INTERIOR FUSE BOX W/ MEMORY

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