Mercedes-Benz B-class W246 facelift (2014-2018) cla class Wiring diagrams

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

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

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

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

1/2 ACTIVE CURVE ILLUMINATION ACTUATOR MOTOR BLK/GRN WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLS H BLS L BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE CAN E H CAN E L CLA CLASS CLA CLASS, GLA CLASS COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CORNERING ILLUMINATION ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE EXTERIOR LIGHTS LED ACTUATION MODULE EXTERIOR LIGHTS SWITCH FRA-L FRA-R FRONT FOG LAMP SWITCH FUSE 229 FUSE 231 FUSE 237 FUSE 84 FUSE 89 GLA CLASS GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE HAZARD WARNING SYSTEM SWITCH HEADLAMP FLASHER/ HIGH BEAM SWITCH HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED ILLUMINATION SWITCH LEFT FRONT SIDE MARKER LAMP LIN 1 ORG/BLU WIRE PARKING LIGHT, STANDING LIGHT, DAYTIME RUNNING LIGHT PARKING LIGHT, STANDING LIGHT, HIGH BEAM, DAYTIME RUNNING LIGHT PL L (+) PL R (+) PLTFL L REAR FOG LIGHT SWITCH RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT RIGHT FRONT SIDE MARKER LAMP SIDE MARKER LAMP STANDING PARKING LAMPS STEERING COLUMN MODULE CONTROL UNIT STOP LAMP SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) TURN SIGNAL LAMP TURN SIGNAL LAMPS SWITCH TURN SIGNAL LIGHT/ SIDE MARKER LIGHT UPLTFL L (+) UPLTFL R (+) UPPER CONTROL PANEL CONTROL UNIT VEHICLE INTERIOR FUSE BOX W/ XENON HEADLAMP W/ XENON HEADLAMP W/O XENON HEADLAMP W/O XENON HEADLAMP WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL/WHT WIRE

ABL L ABL R ACOUSTIC TURN SIGNAL LIGHT FUNCTION CHECK ACTIVE CURVE ILLUMINATION ACTUATOR MOTOR BLK WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN E H CAN E L CAN-G H CAN-G L CENTER REAR OF LUGGAGE COMPT) CENTER STOP LAMP CLA CLASS COMPUTER DATA LINES SYSTEM CORNERING ILLUMINATION ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRIC PARKING BRAKE SWITCH EXTERIOR LIGHTS LED ACTUATION MODULE GLA CLASS B-CLASS, CLA CLASS GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/BLU WIRE HEADLAMP CONTROL UNIT INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL UNIT LEFT FRONT LAMP UNIT LEFT OUTSIDE MIRROR LEFT TURN SIGNAL IND LIGHT MULTI-FUNCTION DISPLAY NCA WIRE ORG/BLK WIRE OUTSIDE MIRROR AMBIENT LAMP OUTSIDE MIRROR TURN SIGNAL LAMP PARKING LIGHT, STANDING LIGHT, DAYTIME RUNNING LIGHT RED/YEL WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTSIDE MIRROR RIGHT TURN SIGNAL IND LIGHT SIDE MARKER LAMP SW 1 SW 3 SW 4 SW 6 TURN SIGNAL LAMP TURN SIGNAL LIGHT/ SIDE MARKER LIGHT W/ XENON HEADLAMP W/O XENON HEADLAMP WHT WIRE WHT/RED WIRE WHT/YEL WIRE YEL/WHT WIRE

AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT B-CLASS, CLA CLASS GLA CLASS BLK WIRE BLU WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CLA CLASS COMPUTER DATA LINES SYSTEM FRONT ELECTRICAL PREFUSE BOX FUSE 2 FUSE 23 FUSE 24 FUSE 34 FUSE 35 30 GRN WIRE HEATED REAR WINDOW HEATED REAR WINDOW RELAY HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LEFT OUTSIDE MIRROR MIRROR HEATER REAR WINDOW HEATER BUTTON REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR RED WIRE RED/BLK WIRE RED/BLU WIRE RELAY ENERGIZED RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTSIDE MIRROR VEHICLE INTERIOR FUSE BOX WHT WIRE YEL/RED WIRE

A TEL BLU WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CLA CLASS COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 102 FUSE 202 FUSE 84 GLA CLASS GRN WIRE GRY/WHT WIRE HOT AT ALL TIMES LIN 1 MOBILE PHONE CONTACT PLATE MOBILE PHONE, STATIONARY HEATER RADIO REMOTE CONTROL ANTENNA SPLITTER MULTI-FUNCTION ANTENNA NCA WIRE ORG/BLU WIRE RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE SHD SHD A TEL SIG STATIONARY HEATER BUTTON STATIONARY HEATER FUEL PUMP STATIONARY HEATER RADIO REMOTE CONTROL RECEIVER STATIONARY HEATER SWITCHOVER VALVE STATIONARY HEATER UNIT TELEPHONIC, STATIONARY HEATER ANTENNA UPPER CONTROL PANEL CONTROL UNIT VEHICLE INTERIOR FUSE BOX