Mercedes-Benz GLC-class Coupe C253 (2016-2019) electronic ignition switch control unit Wiring diagrams

BLU WIRE BRN WIRE CAN-D H CAN-D L DIAGNOSTIC CONNECTOR ELECTRONIC IGNITION SWITCH CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT EMERGENCY CALL SYSTEM CONTROL UNIT ETN RX+ ETN TX+ FUSE 204 GRN WIRE GRY WIRE GRY/WHT WIRE HEAD UNIT HERMES CONTROL UNIT HOT AT ALL TIMES K LINE LEFT FUSE, RELAY MODULE ORG/ WIRE PNK WIRE RED/GRN WIRE TELEMATICS SERVICES COMMUNICATION MODULE W/ EMERGENCY CALL/ ASSISTANCE SYSTEM W/ HERMES W/ TELEMATICS WAKEUP WHT WIRE WHT/BLK WIRE YEL/GRY WIRE

30 UNG AIRMATIC COMPRESSOR AIRMATIC CONTROL UNIT AIRMATIC PRESSURE REDUCTION VALVE AIRMATIC RELAY AUDIO/COMAND CONTROL PANEL BLK WIRE BLK/BRN WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BRN WIRE CAN A H CAN A L COMPUTER DATA LINES SYSTEM CONTROL PANEL CUTOUT RELAY ENERGIZED DAM HL 1 (HS) DAM HL 1 (LS) DAM HR 1 (HS) DAM HR 1 (LS) DAM VAL 1 (HS) DAM VAL 1 (LS) DAM VR 1 (HS) DAM VR 1 (LS) ELECTRIC MOTOR ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE FUSE, RELAY MODULE FLEXRAY 5 BM FLEXRAY 5 BP FUSE 114 FUSE 320 GRN WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE HOT W/ LED 2 LEFT FRONT LEFT FRONT AXLE DAMPING VALVE UNIT LIN NIV ABLV (+) NIV HL (-) NIV HR (-) NIV HR (LS) PARKING SYSTEM BUTTON PNK WIRE QUIESCENT CURRENT REAR END LOWERING SWITCH RED WIRE RED/ORG WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT A-PILLAR FUSE BOX RIGHT LOWER CONTROL PANEL RIGHT REAR LEVEL SENSOR SOLENOID SW DOWN VALVE 1 VALVE 2 VB + VEHICLE LEVEL BUTTON VIO WIRE VIO/BLK WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE

BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN H H CAN H L CAN HMI H CAN HMI L CAN PER H CAN PER L DISTRONIC ELECTRIC CONTROLLER UNIT (BEHIND CENTER OF FRONT GRILLE) DRIVETRAIN CONTROL UNIT ELECTRICAL POWER STEERING CONTROL UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT FLEXRAY 1 BM FLEXRAY 1 BP FLEXRAY 1 BP PNK FLEXRAY 1 BM WIRE FLEXRAY 2 BM FLEXRAY 2 BP FLEXRAY 3 BP PNK FLEXRAY 3 BM WIRE FLEXRAY 3 BP PNK FLEXRAY 3 BP WIRE FLEXRAY 4 BM FLEXRAY 4 BP FLEXRAY 4 BP PNK FLEXRAY 1 BP WIRE FLEXRAY 4 BP PNK FLEXRAY 4 BM WIRE FRONT LONG RANGE RADAR SENSOR GRN WIRE GRN/WHT WIRE LEFT FRONT BUMPER RADAR SENSOR PNK FLEXRAY 4 BM WIRE PNK WIRE PNK/WHT WIRE RADAR SENSOR CONTROL UNIT RIGHT FRONT BUMPER RADAR SENSOR STEERING COLUMN MODULE CONTROL UNIT VIO WIRE VIO/WHT WIRE W/ ACTIVE PARK ASSIST W/ AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS W/ AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS, DISTRONIC PLUS, AIRMATIC W/ DISTRONIC PLUS W/O DISTRONIC PLUS W/O AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS, DISTRONIC PLUS, AIRMATIC YEL WIRE YEL/WHT WIRE

ADAPTIVE DAMPING SYSTEM CONTROL UNIT AIRMATIC CONTROL UNIT BLK WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L CAN PER H CAN PER L CAN-D H CAN-D L COMPUTER DATA LINES SYSTEM DIRECT SELECT INTELLIGENT SERVO MODULE DISTRONIC ELECTRIC CONTROLLER UNIT DRIVETRAIN CONTROL UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT FM 1, AM, CL (ZV), KEYLESS GO ANTENNA AMPLIFIER FR 1 BM FR 1 BP FR 2 BM FR 2 BP FR 3 BM FR 3 BP FR 4 BM FR 4 BP FR 5 BP FROM LEFT FUSE, RELAY MODULE (DIAGRAM 2 OF 6) FULLY INTEGRATED TRANSMISSION CONTROL UNIT GRN WIRE GRN/WHT WIRE GRY WIRE GRY/WHT WIRE HF SIG ISM LEFT FRONT DOOR CONTROL UNIT PARK PAWL CAPACITOR PNK FR 5 BM WIRE PNK WIRE RADAR SENSORS CONTROL UNIT RED/BLU WIRE RED/GRN WIRE SIG STEERING COLUMN MODULE CONTROL UNIT STEREO MULTI-FUNCTION CAMERA W/ ACTIVE LANE KEEPING ASSIST W/ AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS W/ AUTONOMOUS INTELLIGENT CRUISE CONTROL PLUS, DISTRONIC PLUS, AIRMATIC YEL WIRE YEL/WHT WIRE

1 BM 1 BP ACCELERATE, SET SWITCH ACCEPT/TERMINATE BLK WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BUTTON BUTTONS COMBINATION SWITCH CRUISE CONTROL LEVER DECELERATE, SET SWITCH DIRECT SELECT LEVER DISTRONIC CONTROL DRIVETRAIN CONTROL UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FLEXRAY FLEXRAY 1 BM FLEXRAY 1 BP FOR SETTING FUSE 210 FUSE 329 GRN WIRE HEADLAMP FLASHER/HIGH BEAM SWITCH HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT FUSE, RELAY MODULE MUTE FUNCTION NCA WIRE OFF SWITCH PHONE CALL PNK WIRE RED WIRE RED/BLK WIRE RESUME FROM MEMORY SWITCH RIGHT A-PILLAR FUSE BOX RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SPECIFIC FUNCTIONS, STEERING COLUMN ADJUSTMENT, STEERING WHEEL HEATER SWITCH STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) STEERING WHEEL ANGLE SENSOR SUPPLEMENTAL RESTRAINTS SYSTEM TURN SIGNAL LAMPS SWITCH VIO/YEL WIRE VOLUME CONTROL W/ ACTIVE LANE KEEPING ASSIST W/ INTELLIGENT CRUISE CONTROL W/O INTELLIGENT CRUISE CONTROL WINDSHIELD WASHER SYSTEM SWITCH WIPE SWITCH

BATTERY SENSOR BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CHARGING CIRCUIT COMPUTER DATA LINES SYSTEM DIRECT SELECT LEVER ECO START/ STOP FUNCTION BUTTON (IF EQUIPPED) ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE FUSE, RELAY MODULE FLEX RAY 1 BM FLEX RAY 1 BP FRONT SAM CONTROL UNIT FULLY INTEGRATED TRANSMISSION CONTROL UNIT FUSE 111 FUSE 127 GRN WIRE GRN/WHT WIRE HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED LEFT LOWER CONTROL PANEL LIN LIN RBA-1 ME-SFI (ME) CONTROL UNIT NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY P R N D PNK FLEX RAY 1 BP WIRE PNK WIRE RED WIRE RIGHT LOWER CONTROL PANEL SEB STARTER STARTER CIRCUIT 50 RELAY STEERING COLUMN MODULE CONTROL UNIT STR+ VIO WIRE VIO/WHT WIRE VOLTAGE DIP LIMITER YEL WIRE YEL/RED WIRE

3 BM 3 BP AUXILIARY HEATER HEATING ELEMENT BRN WIRE ELECTRONIC IGNITION SWITCH CONTROL UNIT FLEX RAY FLEX RAY 3 BM FLEX RAY 3 BP FUSE 325 GRN WIRE HEM (+) HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED PNK WIRE RED/BRN WIRE RED/YEL WIRE RIGHT A-PILLAR FUSE BOX STEREO MULTI-FUNCTION CAMERA

AUDIO/COMAND CONTROL PANEL AUX SUPPLY BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE CAN A H CAN A L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DIRECT SELECT LEVER DYNAMIC SELECT SWITCH ELECTRONIC IGNITION SWITCH CONTROL UNIT FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT FULLY INTEGRATED TRANSMISSION CONTROL UNIT (IN BOTTOM OF TRANSMISSION) FUSE 10 FUSE 329 GRN WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER INTERNAL INPUT SPEED RPM SENSOR LEFT LOWER CONTROL PANEL LIN LSP + LUBRICATING PRESSURE SOLENOID OUTPUT SHAFT RPM SENSOR PARK PAWL LIFT SOLENOID PARK PAWL POSITION SENSOR PNK WIRE PRESSURE SENSOR RED WIRE RED/YEL WIRE RIGHT A-PILLAR FUSE BOX STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL DOWNSHIFT BUTTON STEERING WHEEL ELECTRONICS STEERING WHEEL UPSHIFT BUTTON TORQUE CONVERTER LOCKUP CLUTCH SOLENOID TURBINE WHEEL RPM SENSOR VEHICLE INTERIOR PREFUSE BOX WHT WIRE WORKING PRESSURE SOLENOID YEL WIRE YEL/WHT WIRE

30-1 BLK/BLU WIRE BLK/YEL WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L CAN B L RBA-1 CAN HMI H CAN HMI L COMBINATION SWITCH COMPUTER DATA LINES SYSTEM ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FLEX RAY 1 BM FLEX RAY 1 BP FLEXRAY 1 BM FLEXRAY 1 BP FRONT SAM CONTROL UNIT FUSE 106 FUSE 109 FUSE 200 FUSE 205 FUSE 326 FUSE 329 FUSE 465 FUSE 466 FUSE 5 GRN WIRE HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED INSTRUMENT CLUSTER LEFT FUSE, RELAY MODULE N/A OVERHEAD CONTROL PANEL CONTROL UNIT PNK WIRE PWR-1 RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT (RIGHT REAR OF LUGGAGE COMPT) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RIGHT A-PILLAR FUSE BOX SIG SPRAY NOZZLE HOSE HEATER (IF EQUIPPED) (CENTER REAR OF ENGINE COMPT) STEERING COLUMN MODULE CONTROL UNIT TAILGATE WIPER MOTOR WINDSHIELD WASHER SYSTEM PUMP WINDSHIELD WASHER SYSTEM SWITCH WINDSHIELD WASHER SYSTEM WASHER FLUID LEVEL SWITCH WIPER MOTOR WIPER PARK POSITION HEATER RELAY WIPER SWITCH YEL WIRE YEL/WHT WIRE