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

BLK WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FUSE 90 HOT W/ CIRCUIT 15 RELAY ENERGIZED LEFT BLIND SPOT ASSIST READINESS, WARNING INDICATOR LEFT FRONT DOOR CONTROL UNIT LEFT OUTSIDE MIRROR LEFT REAR BUMPER INTELLIGENT RADAR SENSOR RIGHT BLIND SPOT ASSIST READINESS, WARNING INDICATOR RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTSIDE MIRROR RIGHT REAR BUMPER INTELLIGENT RADAR SENSOR SAM CONTROL UNIT T A B(+) T A W(+) VEHICLE INTERIOR FUSE BOX

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

30 FH BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMBINATION SWITCH COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DECOUPLING RELAY EXTERIOR LIGHTS SWITCH FRONT ELECTRICAL PREFUSE BOX FRONT FOG LAMP INDICATOR LAMP FUSE 4 FUSE 89 GRN WIRE GRN/BRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HEADLAMP RANGE CONTROLLER HIGH BEAM INDICATOR LAMP HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED INNER LEFT REAR LAMP UNIT INSTRUMENT CLUSTER LEFT DAYTIME RUNNING LAMPS HEADLAMP LEFT FOG LAMP LEFT REAR FOG LAMP LOW BEAM INDICATOR LAMP LOW BEAM SWITCH ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT RAIN/LIGHT SENSOR (W/ RAIN SENSOR) LIGHT SENSOR (W/O RAIN SENSOR) REAR FOG LAMP BUTTON REAR FOG LAMP INDICATOR LAMP RED/YEL WIRE RIGHT DAYTIME RUNNING LAMPS HEADLAMP RIGHT FOG LAMP SAM CONTROL UNIT (LEFT END OF DASH) STEERING COLUMN MODULE CONTROL UNIT SWITCH ILLUMINATION SYSTEM VEHICLE INTERIOR FUSE BOX YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

BLU WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM RED/YEL WIRE RIGHT FRONT LAMP UNIT RIGHT FRONT LAMP UNIT FAN MOTOR RIGHT HEADLAMP CONTROL UNIT RIGHT HEADLAMP RANGE ADJUSTMENT ACTUATOR MOTOR RIGHT HIGH BEAM RIGHT LOW BEAM RIGHT POSITION LIGHT, DAYTIME RUNNING LIGHT, TURN SIGNAL LIGHT SIG YEL WIRE

BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN E H CAN E L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FRA-R FRONT FOG LAMP BUTTON FUSE 229 FUSE 231 FUSE 232 FUSE 236 FUSE 89 GRN WIRE GRN/BRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE HEADLAMP FLASHER/ HIGH BEAM SWITCH HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED ILLUMINATION SWITCH LEFT ACTIVE CURVE ILLUMINATION ACTUATOR MOTOR LEFT FRONT EXTERIOR LIGHT LED ACTUATION MODULE LEFT FRONT LAMP UNIT LEFT HEADLAMP RANGE ADJUSTMENT ACTUATOR MOTOR LEFT LIGHT DISTRIBUTION ACTUATOR MOTOR LEFT XENON BULB W/ INTEGRATED IGNITION MODULE LEFT XENON LIGHT POWER SUPPLY MODULE LOW BEAM SWITCH ORG/BLK WIRE ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT RAIN/LIGHT SENSOR (W/ RAIN SENSOR) LIGHT SENSOR (W/O RAIN SENSOR) REAR FOG LAMP BUTTON RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT ACTIVE CURVE ILLUMINATION ACTUATOR MOTOR RIGHT FRONT EXTERIOR LIGHT LED ACTUATION MODULE RIGHT FRONT LAMP UNIT RIGHT HEADLAMP RANGE ADJUSTMENT ACTUATOR MOTOR RIGHT LIGHT DISTRIBUTION ACTUATOR MOTOR RIGHT XENON BULB W/ INTEGRATED IGNITION MODULE RIGHT XENON LIGHT POWER SUPPLY MODULE SAM CONTROL UNIT (LEFT END OF DASH) SIG STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) UPLTFL L (+) UPLTFL R (+) VEHICLE INTERIOR FUSE BOX WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

ABL L ABL R BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN E H CAN E L CAN-G H CAN-G L COMPUTER DATA LINES SYSTEM FRONT AXLE LEVEL SENSOR (BI-XENON HEADLAMP) (IN FRONT RIGHT WHEELWELL) FRONT FOG LAMP INDICATOR LAMP GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/GRN WIRE HEADLAMP CONTROL UNIT (UPPER RIGHT FOOTWELL) HIGH BEAM INDICATOR LAMP INNER LEFT REAR LAMP UNIT INNER RIGHT REAR LAMP UNIT INSTRUMENT CLUSTER LEFT FOG LAMP LEFT REAR FOG LAMP LOW BEAM INDICATOR LAMP ORG/BLK WIRE REAR AXLE LEVEL SENSOR REAR FOG LAMP INDICATOR LAMP RED/GRN WIRE RED/WHT WIRE RIGHT FOG LAMP RIGHT REAR FOG LAMP SIG WHT/RED WIRE YEL/BLK WIRE YEL/BLU 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

AUXILIARY HEATER HEATING ELEMENT BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM FUSE 106 HOT W/ CIRCUIT MULTI-FUNCTION CAMERA RED/GRN WIRE VEHICLE INTERIOR FUSE BOX YEL/BRN WIRE YEL/RED WIRE

BACKUP CAMERA (CENTER OF LUGGAGE COMPT LID) BLU WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM FUSE 108 GRN WIRE HOT W/ CIRCUIT LVDS LVDS (-) GND NCA WIRE ORG/ WIRE RADIO (W/ AUDIO 20) COMAND CONTROL UNIT (W/O AUDIO 20) RED/PNK WIRE SHIELD VEHICLE INTERIOR FUSE BOX