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

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

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

BACKUP LAMP BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN C H CAN C L COMPUTER DATA LINES SYSTEM DUAL CLUTCH TRANSMISSION FULLY INTEGRATED TRANSMISSION CONTROL CONTROLLER UNIT FUSE 98 GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HOT W/ CIRCUIT INNER LEFT REAR LAMP UNIT INNER RIGHT REAR LAMP UNIT LEFT REAR LAMP UNIT RED/WHT WIRE RIGHT REAR LAMP UNIT SAM CONTROL UNIT (LEFT END OF DASH) VEHICLE INTERIOR FUSE BOX W/ STATIC LED W/O STATIC LED CLA-CLASS B-CLASS GLA-CLASS YEL WIRE

BACKUP LAMP BACKUP LAMPS CIRCUIT BLK WIRE BLK/GRN WIRE BLK/ORG WIRE BLK/YEL WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CLA CLASS CLA CLASS, GLA CLASS COMPUTER DATA LINES SYSTEM FUSE 98 GLA CLASS GRN WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/ORG WIRE GRY/PNK WIRE GRY/RED WIRE HOT W/ CIRCUIT INNER RIGHT BRAKE LAMP INNER RIGHT REAR LAMP UNIT INNER RIGHT REAR LAMP UNIT (B-CLASS, W/O STATIC LED) NCA WIRE OUTER RIGHT BRAKE LAMP RED WIRE RED/WHT WIRE RIGHT LICENSE PLATE LAMP RIGHT REAR LAMP UNIT (B-CLASS) RIGHT REAR LAMP UNIT (CLA CLASS) RIGHT SIDE MARKER LAMP RIGHT TAIL LAMP RIGHT TAILLAMP, PARKING LAMP SAM CONTROL UNIT (LEFT END OF DASH) STOP LAMP STOP LAMP, TAILLAMP, PARKING LAMP TAILLAMP, PARKING LAMP VEHICLE INTERIOR FUSE BOX W/O STATIC LED W/ STATIC LED WHT WIRE YEL/WHT WIRE

BACKUP LAMP BACKUP LAMPS CIRCUIT BLK WIRE BLK/ORG WIRE BLK/YEL WIRE BRN WIRE CLA CLASS GLA CLASS GRN WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/YEL WIRE INNER LEFT BRAKE LAMP INNER LEFT REAR LAMP UNIT (B-CLASS, W/ STATIC LED) INNER LEFT REAR LAMP UNIT (B-CLASS, W/O STATIC LED) LEFT LICENSE PLATE LAMP LEFT REAR FOG LAMP LEFT REAR LAMP UNIT (B-CLASS, W/ STATIC LED) LEFT REAR LAMP UNIT (B-CLASS, W/O STATIC LED) LEFT REAR LAMP UNIT (CLA CLASS) LEFT SIDE MARKER LAMP LEFT TAIL LAMP LEFT TAILLAMP, PARKING LAMP NCA WIRE OUTER LEFT BRAKE LAMP REAR FOG LAMP RED WIRE RIGHT LICENSE PLATE LAMP STOP LAMP STOP LAMP, TAILLAMP, PARKING LAMP TAILLAMP, PARKING LAMP W/O STATIC LED W/ STATIC LED CLA CLASS GLA CLASS WHT WIRE YEL/WHT WIRE

ACTIVE PARK ASSIST, PARKTRONIC), RIGHT REAR DOOR LOCK, BATTERY SENSOR (CLA, GLA CLASS) BRN WIRE CYLINDER 1,2,3,4 IGNITION COILS (CLA, GLA CLASS), NOX SENSOR CONTROL UNIT, DISTRIBUTOR ELECTRICAL CONNECTOR (CLA, GLA CLASS, DISTRIBUTOR ELECTRICAL CONNECTOR, ROTATING BEACON ELECTRICAL CONNECTOR DRIVETRAIN SENSOR CAN (CAN I) POTENTIAL ELECTRIC PARKING BRAKE CONTROL UNIT FAN MOTOR GLA CLASS HEADLAMP CLEANING SYSTEM PUMP (IF EQUIPPED), NCA WIRE PARKING SYSTEM CONTROL UNIT (W/ CLA, GLA CLASS, RIGHT FRONT DOOR CONTROL UNIT, SAM CONTROL UNIT,

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

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 WIRE BLU/BLK WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CENTRAL LOCKING MOTOR CLA CLASS, GLA CLASS COMPUTER DATA LINES SYSTEM DRIVER TRUNK LID/ LIFTGATE CONTROL BUTTON FUEL FILLER/ SOCKET FLAP CENTRAL LOCKING ACTUATOR FUSE 23 FUSE 78 GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/PNK WIRE HOT AT ALL TIMES LEFT FRONT DOOR CONTROL MODULE MOT- NCA WIRE ORG/ WIRE ORG/GRN WIRE RED WIRE RED/BLK WIRE S SIG SAM CONTROL UNIT (LEFT END OF DASH) SIG S_SIG TRUNK LID EMERGENCY OPENING SWITCH TRUNK LID RELEASE BUTTON TRUNK LID/ LIFTGATE CONTROL BUTTON TRUNK LID/ LIFTGATE CONTROL ELECTRIC MOTOR TRUNK LID/ LIFTGATE CONTROL HALL SENSOR TRUNK LID/LIFTGATE CENTRAL LOCKING MOTOR TRUNK LID/LIFTGATE CONTROL DRIVE UNIT TRUNK LID/LIFTGATE CONTROL UNIT TRUNK LID/LIFTGATE CONTROL WARNING BUZZER TRUNK LID/LIFTGATE EXTERNAL OPERATION SWITCH TRUNK LID/LIFTGATE LOCKING ELEMENT TRUNK LID/LIFTGATE LOCKING PAWL SWITCH TRUNK LID/LIFTGATE ROTARY TUMBLER SWITCH VEHICLE INTERIOR FUSE BOX VIO WIRE VIO/BRN WIRE VIO/YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE

BLK WIRE BLK/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE CAN B H CAN B L CAN E H CAN E L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM DECOUPLING RELAY FRONT ELECTRICAL PREFUSE BOX FUSE 239 FUSE 32 FUSE 56 FUSE 82 FUSE 96 GRN WIRE GRN/BRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT W/ CIRCUIT INSTRUMENT CLUSTER LIFTGATE WINDSHIELD WASHER SYSTEM SWITCH MOT- NCA WIRE ORG/GRN WIRE OVERHEAD CONTROL PANEL UNIT RAIN/LIGHT SENSOR (W/ RAIN SENSOR) LIGHT SENSOR (W/O RAIN SENSOR) REAR WINDOW WIPER RELAY RED WIRE RED/BLU WIRE RED/VIO WIRE RED/WHT WIRE SAM CONTROL UNIT (LEFT END OF DASH) SIG SPRAY NOZZLE HEATER SPRAY NOZZLE HOSE HEATER STEERING COLUMN MODULE CONTROL UNIT TAILGATE WIPER MOTOR VEHICLE INTERIOR FUSE BOX VIO WIRE WINDSHIELD WASHER SYSTEM PUMP WINDSHIELD WASHER SYSTEM SWITCH WINDSHIELD WASHER SYSTEM WASHER FLUID LEVEL SWITCH WINDSHIELD WIPER ON/OFF RELAY WIPER LEVEL 1/2 RELAY WIPER MOTOR WIPER SWITCH WMV A/D WMV PP WMV WS YEL/GRN WIRE YEL/VIO WIRE