Mercedes-Benz B-class W246 facelift (2014-2018) computer data lines system Wiring diagrams

BLK WIRE BLK/YEL WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM ELECTRIC REFRIGERANT COMPRESSOR ENGINE CONTROLS SYSTEM FRONT ELECTRICAL PREFUSE BOX FUSE 5 GRN/BLK WIRE GRN/BRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/YEL WIRE HIGH-VOLTAGE DISCONNECT DEVICE HIGH-VOLTAGE POWER DISTRIBUTOR HIGH-VOLTAGE PTC HEATER HOT AT ALL TIMES HUMIDITY/ TEMPERATURE SENSOR HV- INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN LIGHT SENSOR (-) LIN 1 LIN 1 IP NCA WIRE ORG/ WIRE ORG/BLU WIRE ORG/GRN WIRE ORG/RED WIRE OUTSIDE TEMPERATURE SENSOR OVERHEAD CONTROL PANEL CONTROL UNIT POT POT POT PRE AIR CONDITIONING BUTTON RAIN SENSOR RAIN/LIGHT SENSOR (W/ RAIN SENSOR) LIGHT SENSOR (W/O RAIN SENSOR) RED WIRE RED/BLK WIRE RED/BRN WIRE S- SHD SAM CONTROL UNIT (LEFT END OF DASH) SHD SIG UPPER CONTROL PANEL CONTROL UNIT YEL WIRE

BLU WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER-SIDE INSTRUMENT PANEL AMBIANCE ILLUMINATION ENGINE COMPARTMENT FUSE, RELAY MODULE FRONT CENTER CONSOLE CUP HOLDER AMBIANCE ILLUMINATION FRONT PASSENGER SEAT AMBIANCE ILLUMINATION FRONT PASSENGER SEAT CONTROL UNIT FRONT PASSENGER SIDE BAG SQUIB FUSE 236 GRN/PNK WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES I/P LEFT REAR SEAT AMBIANCE ILLUMINATION ORG/ WIRE PASSENGER-SIDE INSTRUMENT PANEL AMBIANCE ILLUMINATION PNK/WHT WIRE RED/BLK WIRE RED/GRN WIRE RIGHT FRONT FOOTWELL LAMP RIGHT REAR FOOTWELL LAMP RIGHT REAR SEAT AMBIANCE ILLUMINATION SAM CONTROL UNIT (LEFT END OF DASH) SIG TOP OF ENGINE) TRUNK LID/LIFTGATE AMBIENT LAMP VIO/BLU WIRE VIO/YEL WIRE WHT WIRE YEL WIRE YEL/BLU WIRE

BLK WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER SEAT AMBIANCE ILLUMINATION DRIVER SEAT CONTROL UNIT (UNDER DRIVER SEAT) DRIVER SIDE BAG SQUIB FOOTWELL ILLUMINATION DIODE 1 FOOTWELL ILLUMINATION DIODE 2 FOOTWELL ILLUMINATION SWITCH GRN WIRE GRN/PNK WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/WHT WIRE INSTRUMENT ILLUMINATION CIRCUIT LEFT FRONT ILLUMINATED DOOR SILL MOLDING LEFT REAR DOOR AMBIANCE ILLUMINATION LEFT REAR DOOR DOOR HANDLE ILLUMINATION LEFT REAR DOOR LOCK LEFT REAR DOOR ROTARY TUMBLER SWITCH LEFT REAR FOOTWELL LAMP NCA WIRE ORG/ WIRE PNK/WHT WIRE POWER DISTRIBUTION SYSTEM RED/BLK WIRE RED/GRN WIRE RIGHT FRONT ILLUMINATED DOOR SILL MOLDING RIGHT REAR DOOR AMBIANCE ILLUMINATION RIGHT REAR DOOR DOOR HANDLE ILLUMINATION RIGHT REAR DOOR LOCK RIGHT REAR DOOR ROTARY TUMBLER SWITCH VIO/BLU WIRE W/O SEAT AMBIANCE ILLUMINATION W/ SEAT AMBIANCE ILLUMINATION 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

BLK/VIO WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM GRN WIRE GRN/GRY WIRE GRY/WHT WIRE LEFT FRONT DOOR AMBIANCE ILLUMINATION LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR EXIT, WARNING LAMP LEFT FRONT DOOR HANDLE ILLUMINATION LEFT FRONT DOOR LOCK LEFT FRONT DOOR ROTARY TUMBLER SWITCH LEFT REAR READING LAMP LEFT REAR READING LAMP SWITCH NCA WIRE REAR AMBIENT LAMP REAR DOME LAMP REAR DOME LAMP (W/ READING LAMPS) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR AMBIANCE ILLUMINATION RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR EXIT, WARNING LAMP RIGHT FRONT DOOR HANDLE ILLUMINATION RIGHT FRONT DOOR LOCK RIGHT FRONT DOOR ROTARY TUMBLER SWITCH RIGHT REAR READING LAMP RIGHT REAR READING LAMP SWITCH SIG W/ EXTERIOR LIGHT, VISION PACKAGE W/O EXTERIOR LIGHT, VISION PACKAGE WHT WIRE

BLK WIRE BRN WIRE CAN E H CAN E L COMPUTER DATA LINES SYSTEM ELECTRIC POWER STEERING ACTUATOR MOTOR ELECTRIC POWER STEERING TORQUE SENSOR ELECTRICAL POWER STEERING CONTROL UNIT FRONT ELECTRICAL PREFUSE BOX FUSE 3 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER RED WIRE WHT WIRE YEL WIRE

ANTI-THEFT ALARM SYSTEM/EMERGENCY CALL SYSTEM BUTTON GROUP BLU WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L CAN E H CAN E L COMPUTER DATA LINES SYSTEM DRIVER TRUNK LID/LIFTGATE CONTROL BUTTON FOOTWELL ILLUMINATION SWITCH FUSE 23 FUSE 24 FUSE 82 FUSE 88 GRN WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT ILLUMINATION, INSTRUMENT ILLUMINATION BRIGHTNESS CONTROL LEFT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR DOOR HANDLE ILLUMINATION ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER-SIDE POWER WINDOW SWITCH RED WIRE RED/BLK WIRE RIGHT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR DOOR HANDLE ILLUMINATION SIG TRUNK LID RELEASE BUTTON VEHICLE INTERIOR FUSE BOX WHT WIRE WHT/YEL WIRE

ACCELERATE, SET SWITCH ACCEPT/TERMINATE PHONE CALL BUTTON BACK, VOICE CONTROL SYSTEM OFF BUTTON BLK WIRE BLU WIRE BRN WIRE BUTTON +, - FOR SETTING SPECIFIC FUNCTIONS, VOLUME CONTROL CAN E H CAN E L CENTER HORNS BUTTON COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CRUISE CONTROL LEVER DECELERATE, SET SWITCH DIRECT SELECT LEVER DISTRONIC CONTROL (IF EQUIPPED) DRIVER AIR BAG SQUIB 1 DRIVER AIR BAG SQUIB 2 FUSE 32 FUSE 56 GRN WIRE GRN/ORG WIRE GRN/WHT WIRE GRY/BLU WIRE HEADLAMP FLASHER/HIGH BEAM SWITCH HOT AT ALL TIMES HOT W/ CIRCUIT INDICATOR SWITCH LEFT FANFARE HORN SYSTEM BUTTON LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP LIFTGATE WINDSHIELD WASHER SYSTEM SWITCH LOW BEAM SWITCH MULTI- FUNCTION MUTE FUNCTION BUTTON NOT USED NOT USED OFF SWITCH OK BUTTON PNK WIRE RED WIRE RED/BLU WIRE RESET, BACK BUTTON RESUME FROM MEMORY SWITCH RIGHT RIGHT FANFARE HORN SYSTEM BUTTON SCROLL FORWARD/ BACK BUTTON SIG STEERING STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ANGLE SENSOR STEERING WHEEL CLOCK SPRING CONTACT STEERING WHEEL DOWNSHIFT BUTTON STEERING WHEEL ELECTRONICS STEERING WHEEL UPSHIFT BUTTON STEERING WHEEL VIBRATION MOTOR SUPPLEMENTAL RESTRAINTS SYSTEM SYSTEM SELECTION BUTTON TURN SIGNAL LAMPS SWITCH VEHICLE INTERIOR FUSE BOX VIO WIRE VOICE CONTROL SYSTEM ON BUTTON W/ DUAL CLUTCH TRANSMISSION WHEEL BUTTON GROUP WINDSHIELD WASHER SYSTEM SWITCH WIPE SWITCH YEL WIRE

BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/VIO WIRE BLU WIRE BLU/BRN WIRE BLU/YEL WIRE BRN WIRE BRN/PNK WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER SIDE POWER WINDOW, OUTSIDE MIRROR ADJUSTMENT SWITCH ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 23 FUSE 236 GRN WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR POWER WINDOW MOTOR LEFT FRONT POWER WINDOW SWITCH LEFT REAR POWER WINDOW SWITCH MOT- ORG/BRN WIRE ORG/WHT WIRE ORG/YEL WIRE PNK WIRE REAR SIDE WINDOW CHILD SAFETY LOCK SWITCH RED/BLK WIRE RED/GRN WIRE RIGHT FRONT POWER WINDOW SWITCH RIGHT REAR POWER WINDOW SWITCH SAM CONTROL UNIT (LEFT END OF DASH) SIG TFH O TFH S VEHICLE INTERIOR FUSE BOX YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE YEL/WHT WIRE

BLK/GRY WIRE BRN WIRE BRN/BLK WIRE BRN/YEL WIRE CAN E H CAN E L COMPUTER DATA LINES SYSTEM ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRIC PARKING BRAKE SWITCH FUSE 73 FUSE 74 FUSE 93 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED LEFT ELECTRIC PARKING BRAKE ACTUATOR MOTOR MOTOR NCA WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/YEL WIRE RIGHT ELECTRIC PARKING BRAKE ACTUATOR MOTOR SW 1 SW 3 SW 4 SW 6 VEHICLE INTERIOR FUSE BOX