Mercedes-Benz B-class W246 facelift (2014-2018) yel/gry Wiring diagrams

BATTERY COOLANT PUMP SWITCHOVER VALVE BATTERY COOLING SYSTEM COOLANT PUMP 1 BATTERY COOLING SYSTEM COOLANT PUMP 2 BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE CAN E H CAN E L CAN EL H CAN EL L CHARGER CONTROL UNIT COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR DOWNSTREAM OF HIGH-VOLTAGE BATTERY COOLANT TEMPERATURE SENSOR UPSTREAM OF HIGH-VOLTAGE BATTERY DRIVE COOLANT TEMPERATURE SENSOR DRIVETRAIN CONTROL UNIT ELECTRIC DRIVE, CHARGER COOLANT PUMP ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 208 FUSE 212 FUSE 213 FUSE 214 GRN WIRE GRN/WHT WIRE HOT W/ TERMINAL PWM RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SIG THERMAL MANAGEMENT CONTROL UNIT WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE

30 AB 30 FH 30 IB SRA AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/ORG WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CENTER ENGINE HOOD CONTACT SWITCH CLA CLASS COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM ELV SIG ENGINE COMPARTMENT FUSE, RELAY MODULE ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS, HEADLIGHTS SYSTEMS FRA-L FRA-R FRONT ELECTRICAL PREFUSE BOX FUSE 236 FUSE 25 FUSE 4 FUSE 79 FUSE 80 GLA CLASS GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE HEADLIGHTS SYSTEM HORN RLY HORNS SYSTEM HOT AT ALL TIMES I/P INSTRUMENT CLUSTER SYSTEM LIN 1 MOT- ORG/BLU WIRE PLTFL L (+) SIG PLTFL L (+) UPLTFL R PLTFL R (+) GND SIG POWER DISTRIBUTION SYSTEM RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SAM CONTROL UNIT (LEFT END OF DASH) SIG SIG (1) SIG (2) SIG 3 SSK START STARTING/CHARGING SYSTEM UPLTFL L (+) VEHICLE INTERIOR FUSE BOX VIO WIRE VIO/WHT WIRE W/ XENON HEADLAMPS W/O XENON HEADLAMPS WHT WIRE WHT/BLK WIRE WHT/RED WIRE WIPER/WASHER SYSTEM WMV A/D WMV PP WSA YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

BATTERY COOLANT PUMP SWITCHOVER VALVE BATTERY COOLING SYSTEM COOLANT PUMP 1 BATTERY COOLING SYSTEM COOLANT PUMP 2 BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE CAN B H CAN B L CAN E H CAN E L CAN EL H CAN EL L COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR DOWNSTREAM OF HIGH-VOLTAGE BATTERY COOLANT TEMPERATURE SENSOR UPSTREAM OF HIGH-VOLTAGE BATTERY DRIVE COOLANT TEMPERATURE SENSOR DRIVETRAIN CONTROL UNIT ELECTRIC DRIVE, CHARGER COOLANT PUMP ENGINE COMPARTMENT FUSE, RELAY MODULE FRONT ELECTRICAL PREFUSE BOX FUSE 208 FUSE 212 FUSE 213 FUSE 214 FUSE 5 FUSE 98 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT W/ TERMINAL INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN ORG/GRN WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PWM RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SAM CONTROL UNIT (LEFT END OF DASH) SIG THERMAL MANAGEMENT CONTROL UNIT VEHICLE INTERIOR FUSE BOX WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED 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

BLK/YEL WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN EL H CAN EL L COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 202 FUSE 207 FUSE 219 FUSE 220 FUSE 52 FUSE 57 FUSE 76 GRY/GRN WIRE HOT AT ALL TIMES HOT W/ STARTER CIRCUIT 50 RELAY ENERGIZED INSTRUMENT CLUSTER N/A PARK PAWL ACTUATOR MOTOR PARK PAWL ACTUATOR MOTOR CIRCUIT 87 RELAY PARK PAWL CONTROL UNIT PARK PAWL CONTROL UNIT CIRCUIT 87 RELAY PARK PAWL POSITION SENSOR POWER DISTRIBUTION SYSTEM RED WIRE RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE SIG A SIG B VEHICLE INTERIOR FUSE BOX VIO/BRN WIRE VIO/GRN WIRE VIO/ORG WIRE VIO/RED WIRE VIO/YEL WIRE YEL/GRY WIRE YEL/RED WIRE

ACCELERATOR PEDAL SENSOR BLK/BLU WIRE BLK/VIO WIRE BLU WIRE BLU/GRN WIRE BLU/WHT WIRE BRAKE BOOSTER VACUUM SENSOR BRN WIRE BRN/ORG WIRE BRN/RED WIRE BRN/YEL WIRE CAN EL H CAN EL L CAN V H CAN V L COMPUTER DATA LINES SYSTEM DRIVETRAIN CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE FRONT ELECTRICAL PREFUSE BOX FUSE 102 FUSE 40 FUSE 5 FUSE 63 FUSE 92 GATEWAY FOR POWERTRAIN CONTROL UNIT GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/VIO WIRE HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED PWM RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE SAM CONTROL UNIT SIG VEHICLE INTERIOR FUSE BOX YEL/BLU WIRE YEL/GRY WIRE YEL/RED WIRE

BLK WIRE BLK/YEL WIRE BLU/YEL WIRE BRN WIRE C SIG CAL EL H CAN EL L COMPUTER DATA LINES SYSTEM CONTACT CONTACTOR 2 CONTACTOR 1 DC F FUSE 751 FUSE 752 FUSE 753 FUSE 754 FUSE 755 GRN WIRE GRN/BLU WIRE HIGH VOLTAGE BATTERY HV- N/A NCA WIRE ORG/ WIRE ORG/RED WIRE ORG/VIO WIRE POT RED WIRE RED/BLK WIRE RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE SHD SWITCH VIO WIRE VIO/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE

BLK WIRE BLK/YEL WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE CAN EL H CAN EL L CHARGER FEED-IN SOCKET (USA) (LEFT REAR FENDER) COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 234 FUSE 241 GRN WIRE GRN/BLU WIRE GRN/YEL WIRE HIGH-VOLTAGE DISCONNECT DEVICE (LEFT END OF DASH) HIGH-VOLTAGE PTC HEATER (UNDER FRONT CENTER OF VEHICLE) HOT AT ALL TIMES HV- NCA WIRE NOT USED ORG/ WIRE ORG/BLK WIRE ORG/RED WIRE ORG/VIO WIRE POT PRX RED WIRE RED/BLK WIRE RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE SHD VIO WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE

AIR CONDITIONING SYSTEM AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT BATTERY COOLANT PUMP SWITCHOVER VALVE BATTERY COOLING SYSTEM COOLANT PUMP 1 BATTERY COOLING SYSTEM COOLANT PUMP 2 BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE CAN EL H CAN EL L COMPUTER DATA LINES SYSTEM ELECTRIC DRIVE, CHARGER COOLANT PUMP FUSE 28 GRN WIRE GRN/BLU WIRE HEATER CIRCUIT CIRCULATION PUMP HOT W/ CIRCUIT 15 RELAY ENERGIZED ORG/ WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE REFRIGERANT COMPRESSOR VACUUM SENSOR SIG VEHICLE INTERIOR FUSE BOX VIO WIRE WHT WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE