Mercedes-Benz B-class W246 facelift (2014-2018) emergency call system control unit Wiring diagrams

BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE DEDICATED SHORT-RANGE COMMUNICATIONS CONTROL UNIT EMERGENCY CALL SYSTEM CONTROL UNIT ETC/DSRC ANTENNA GRN WIRE HSD MF (-) MULTIMEDIA CONNECTION UNIT NCA WIRE ORG/ WIRE RED/BLU WIRE SHIELD TEL ST TELEMATICS SERVICES COMMUNICATION MODULE USB D- USB GND USB SPLITTER YEL/BLU WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE DEDICATED SHORT-RANGE COMMUNICATIONS CONTROL UNIT EMERGENCY CALL SYSTEM CONTROL UNIT ETC/DSRC ANTENNA GRN WIRE HSD MF (-) MULTIMEDIA CONNECTION UNIT NCA WIRE ORG/ WIRE RED/BLU WIRE SHIELD TEL ST TELEMATICS SERVICES COMMUNICATION MODULE USB D- USB GND USB SPLITTER YEL/BLU WIRE

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

A GPS A NOT A SDAR A TEL ANTI-THEFT ALARM SYSTEM/EMERGENCY CALL SYSTEM BUTTON GROUP ATEL BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE C SIG CAN B H CAN B L CAN L H CAN L L CAN-D H CAN-D L CENTER INSTRUMENT PANEL SPEAKER CLA CLASS COMAND ACTUATION CIRCUIT COMAND CONTROL UNIT COMPUTER DATA LINES SYSTEM EMERGENCY CALL SYSTEM ANTENNA EMERGENCY CALL SYSTEM CONTROL UNIT FUSE 103 FUSE 82 GLA CLASS GLOBAL POSITIONING SYSTEM ANTENNA SPLITTER GRN WIRE GRN/ORG WIRE GRY WIRE GRY/GRN WIRE GRY/WHT WIRE HOT AT ALL TIMES LIN B 13 MF (-) MULTI-FUNCTION ANTENNA NCA WIRE ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT RED WIRE RED/BLK WIRE SHIELD SIG SOUND SYSTEM AMPLIFIER CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT TEL ST VEHICLE INTERIOR FUSE BOX W/ NAVIGATION SYSTEM W/ SOUND AMPLIFIER W/O NAVIGATION SYSTEM W/O SOUND AMPLIFIER WHT WIRE WHT/RED WIRE WHT/YEL WIRE

BATTERY MANAGEMENT SYSTEM CONTROL UNIT BRN WIRE BRN/RED WIRE CAMERA COVER CONTROL UNIT CAN B H CAN B L CAN EL H CAN EL L CAN I H CAN I L CAN L H CAN L L CAN-EL L LV CHARGER CONTROL UNIT DC/DC CONVERTER CONTROL UNIT DRIVETRAIN SENSOR CAN (CAN I) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR ELECTRIC DRIVE CAN (CAN EL) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR 1 ELECTRIC DRIVE CAN (CAN EL) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR 2 ELECTRIC DRIVE CAN (CAN EL) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR 3 ELECTRIC VEHICLE SOUND GENERATOR EMERGENCY CALL SYSTEM CONTROL UNIT GATEWAY FOR POWERTRAIN CONTROL UNIT HYBRID CAN (CAN L) POTENTIAL DISTRIBUTOR ELECTRICAL CONNECTOR ME-SFI (ME) CONTROL UNIT NCA WIRE NOX SENSOR CONTROL UNIT PARK PAWL CONTROL UNIT POWER ELECTRONICS CONTROL UNIT RED/YEL WIRE TELEMATICS SERVICES COMMUNICATION MODULE THERMAL MANAGEMENT CONTROL UNIT TRUNK LID/ LIFTGATE CONTROL UNIT DRIVETRAIN CONTROL UNIT W/ EMERGENCY CALL SYSTEM W/O EMERGENCY CALL SYSTEM WHT WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRY WIRE YEL/RED WIRE

BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CENTER INSTRUMENT PANEL SPEAKER CLA CLASS EMERGENCY CALL SYSTEM CONTROL UNIT FUSE 61 GRN WIRE GRY WIRE HOT AT ALL TIMES LEFT REAR SURROUND SPEAKER MOST DATA BUS CIRCUIT MOST IN MOST OUT MOS MOST WS ORG/ WIRE PNK WIRE RED WIRE RED/YEL WIRE RIGHT REAR SURROUND SPEAKER SOUND SYSTEM AMPLIFIER CONTROL UNIT TEL ST TELEMATICS SERVICES COMMUNICATION MODULE VEHICLE INTERIOR FUSE BOX VIO WIRE W/ EMERGENCY CALL/ASSISTANCE SYSTEM W/O EMERGENCY CALL/ASSISTANCE SYSTEM WHT WIRE YEL WIRE

BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN E H CAN E L COMPUTER DATA LINES SYSTEM DRIVER ETR (GUS) SQUIB DRIVER SIDE BAG SQUIB EMERGENCY CALL SYSTEM CONTROL UNIT FRONT PASSENGER BELT FORCE LIMITER FRONT PASSENGER ETR (GUS) SQUIB FRONT PASSENGER SEAT OCCUPIED RECOGNITION FRONT PASSENGER SIDE BAG SQUIB FUSE 38 GRN WIRE GRN/ORG WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/GRN WIRE HOT W/ LEFT FRONTAL ACCELERATION SENSOR LEFT SIDE BAG SENSOR LEFT WINDOW BAG SQUIB ORG/BLU WIRE ORG/BRN WIRE RED/BLK WIRE RED/BLU WIRE RED/VIO WIRE RED/YEL WIRE RELAY ENERGIZED RIGHT FRONTAL ACCELERATION SENSOR RIGHT SIDE BAG SENSOR RIGHT WINDOW BAG SQUIB SIG SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT VEHICLE INTERIOR FUSE BOX VIO WIRE VIO/GRY WIRE VIO/ORG WIRE WHT/BRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE ZP (-) ZP (-) C SIG