Mercedes-Benz B-class W246 facelift (2014-2018) vehicle interior fuse box Wiring diagrams

AC HOUSING, AIR QUALITY SENSOR AIR RECIRCULATION MODE BUTTON AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BF SIG BLOWER MOTOR BLOWER REGULATOR BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L CENTRAL AIR DISTRIBUTION ACTUATOR MOTOR CENTRAL AIR DISTRIBUTION POSITION DETECTION MICROSWITCH COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE EVAPORATOR TEMPERATURE SENSOR F SIG FRESH AIR/ AIR RECIRCULATION FLAP ACTUATOR MOTOR FRONT EVAPORATOR SHUTOFF VALVE FUSE 211 FUSE 222 FUSE 241 FUSE 34 FUSE 81 GRN WIRE GRN/RED WIRE HEATED WINDSHIELD DEFROST BUTTON HEATER CIRCUIT CIRCULATION PUMP HOT AT ALL TIMES HOT W/ STARTER CIRCUIT 50 RELAY ENERGIZED INTERIOR TEMPERATURE SENSOR LEFT BLENDING AIR FLAP ACTUATOR MOT- ORG/ WIRE REAR WINDOW HEATER BUTTON RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/WHT WIRE REFRIGERANT PRESSURE SENSOR RIGHT BLENDING AIR FLAP ACTUATOR S SIG SIG SOLID STATE SUN SENSOR VEHICLE INTERIOR FUSE BOX VIO/BRN WIRE VIO/GRN WIRE VIO/WHT WIRE VIO/YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/RED WIRE YEL/VIO WIRE

ATA (EDW) FUNCTION IND BLK/VIO WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CENTRAL LOCKING MOTOR COMPUTER DATA LINES SYSTEM DATA DRIVER DOOR INFRARED REMOTE CONTROL RECEIVER DRIVER SIDE POWER WINDOW, OUTSIDE MIRROR ADJUSTMENT SWITCH ELECTRONIC IGNITION SWITCH CONTROL UNIT FT DF FUSE 23 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR LOCK LEFT REAR DOOR LOCK MOT- ORG/BLU WIRE PNK WIRE PNK/BLU WIRE PNK/WHT WIRE PNK/YEL WIRE REAR SIDE WINDOW CHILD SAFETY LOCK SWITCH RED/BLK WIRE RIGHT REAR DOOR LOCK ROTARY TUMBLER SWITCH SIG UPPER CONTROL PANEL CONTROL UNIT VEHICLE INTERIOR FUSE BOX WHT WIRE

ANTI-THEFT ALARM SYSTEM/EMERGENCY CALL SYSTEM BUTTON GROUP AUTOMATIC REAR END DOOR BLK WIRE BLK/VIO WIRE BLU WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CLA CLASS COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 236 FUSE 82 GRN WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HORN RLY HORNS SYSTEM HOT AT ALL TIMES LEFT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH LIFT GATE LOCKING PAWL SWITCH LIN B 13 MOT- ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PNK/BLU WIRE PNK/WHT WIRE PNK/YEL WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE ROTARY TUMBLER SWITCH S SIG SAM CONTROL UNIT (LEFT END OF DASH) SIG TRUNK LID/LIFTGATE CENTRAL LOCKING MOTOR TRUNK LID/LIFTGATE CONTROL UNIT VEHICLE INTERIOR FUSE BOX VIO WIRE WHT WIRE WHT/YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

ATA (EDW)/TOWING SENSOR/INTERIOR MOTION SENSOR CONTROL UNIT BLK WIRE BLK/VIO WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/PNK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN C H CAN C L CAN E H CAN E L CENTRAL LOCKING MOTOR CLA CLASS CLA CLASS, GLA CLASS COMPUTER DATA LINES SYSTEM DUAL CLUTCH TRANSMISSION FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT FUSE 24 FUSE 26 FUSE 85 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT DOOR EXIT, WARNING LAMP LEFT FRONT DOOR HANDLE ILLUMINATION LEFT REAR WINDOW GLASS BREAKAGE SENSOR MOT- REAR WINDOW GLASS BREAKAGE SENSOR RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RIGHT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR EXIT, WARNING LAMP RIGHT FRONT DOOR HANDLE ILLUMINATION RIGHT FRONT DOOR LOCK RIGHT REAR WINDOW GLASS BREAKAGE SENSOR ROTARY TUMBLER SWITCH SIG VEHICLE INTERIOR FUSE BOX WHT 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

13 12 PNK WIRE BRN WIRE CAN-D H CAN-D L COMAND CONTROL UNIT (W/O AUDIO 20) RADIO (W/ AUDIO 20) DIAGNOSTIC CONNECTOR ELECTRONIC IGNITION SWITCH CONTROL UNIT EMERGENCY CALL SYSTEM CONTROL UNIT ETH (-) ETH WS FUSE 87 GRN WIRE GRY WIRE GRY/WHT WIRE HOT AT ALL TIMES ORG/YEL WIRE PNK WIRE RED WIRE RED/BLU WIRE TELEMATICS SERVICES COMMUNICATION MODULE VEHICLE INTERIOR FUSE BOX W/ EMERGENCY CALL SYSTEM W/ TELEMATICS SERVICES, EMERGENCY CALL SYSTEM W/O EMERGENCY CALL SYSTEM

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 WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/VIO WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CLA CLASS, GLA CLASS COMPUTER DATA LINES FUSE 24 GRN WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT REAR DOOR POWER WINDOW MOTOR LEFT REAR POWER WINDOW SWITCH MOT- ORG/ WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/WHT WIRE ORG/YEL WIRE PASSENGER SIDE POWER WINDOW SWITCH RED WIRE RED/BLK WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT DOOR POWER WINDOW MOTOR RIGHT REAR DOOR POWER WINDOW MOTOR RIGHT REAR POWER WINDOW SWITCH SIG SYSTEM 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