Mercedes-Benz GLB-class X247 (2019-2023) steering column module control unit Wiring diagrams

BLU WIRE BLU/WHT WIRE BRN WIRE CAN HMI H CAN HMI L CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX FLEXRAY E BP PNK FLEXRAY E BM WIRE FUSE 109 FUSE 13 GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL UNIT NCA WIRE P NOT RED WIRE RED/GRN WIRE RED/ORG WIRE SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL DOWNSHIFT BUTTON STEERING WHEEL ELECTRONICS STEERING WHEEL UPSHIFT BUTTON VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE VIO/WHT WIRE

BLK/BLU WIRE BLK/VIO WIRE BLU WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER DOOR CONTROL UNIT DRIVER SEAT ADJUSTMENT SWITCH GROUP DRIVER SEAT BACKREST INCLINATION ADJUSTMENT MOTOR, HALL SENSOR DRIVER SEAT CONTROL UNIT DRIVER SEAT FORE/AFT ADJUSTMENT MOTOR, HALL SENSOR DRIVER SEAT HEIGHT ADJUSTMENT MOTOR, HALL SENSOR DRIVER SEAT INCLINATION ADJUSTMENT MOTOR, HALL SENSOR FLEX-E BP FLEX-E BM PNK WIRE FUSE 109 FUSE 136 FUSE 156 GRN WIRE GRN/ORG WIRE GRY WIRE GRY/BLU WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED MOT GND/(+) MOT GND/(+) SIG ORG/ WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE RED/ORG WIRE RED/VIO WIRE SEATS SYSTEM SIG STEERING COLUMN MODULE CONTROL UNIT VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE W/ HEATED SEATS WHT/ORG WIRE

BACKUP LAMPS CIRCUIT BLK WIRE BLK/RED WIRE BLK/VIO WIRE BLU/GRN WIRE BRN WIRE CAN H H CAN H L CAN HMI H CAN HMI L CAN LR H CAN LR L CLIMATE CONTROL OPERATING UNIT COMPUTER DATA LINES SYSTEM ELECTRONIC STABILITY PROGRAM CONTROL UNIT EXTERIOR LIGHTS, ELECTRIC PARKING BRAKE SWITCH GROUP GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/WHT WIRE INNER LEFT REAR LAMP UNIT INNER RIGHT REAR LAMP UNIT INSTRUMENT CLUSTER CONTROL UNIT LEFT REAR LAMP UNIT NCA WIRE PNK WIRE PNK/RED WIRE RED/BLK WIRE RIGHT REAR LAMP UNIT SIG SIG (1) SIG (2) SIG 3 SIG 4 STEERING COLUMN MODULE CONTROL UNIT STOP LAMP SWITCH VIO WIRE VIO/BLK WIRE VIO/WHT WIRE WHT WIRE YEL/WHT WIRE

BACKUP LAMPS CIRCUIT BLK WIRE BLK/ORG WIRE BLK/YEL WIRE BLU/GRN WIRE BRN WIRE CAN H H CAN H L CAN HMI H CAN HMI L CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM ELECTRONIC STABILITY PROGRAM CONTROL UNIT EXTERIOR LIGHTS, ELECTRIC PARKING BRAKE SWITCH GROUP GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE INNER LEFT REAR LAMP UNIT INNER RIGHT REAR LAMP UNIT INSTRUMENT CLUSTER CONTROL UNIT LEFT REAR LAMP UNIT NCA WIRE PNK WIRE PNK/RED WIRE RED/BLK WIRE RIGHT REAR LAMP UNIT SIG SIG (1) SIG (2) SIG 3 SIG 4 STEERING COLUMN MODULE CONTROL UNIT STOP LAMP SWITCH VIO WIRE VIO/WHT WIRE WHT WIRE

BRN WIRE BRN/GRN WIRE BRN/WHT WIRE CARD READER, PRINTER DC/AC CONVERTER CONTROL UNIT DIAGNOSTIC CONNECTOR DRIVER DOOR CONTROL UNIT DRIVER MULTICONTOUR SEAT CONTROL UNIT DRIVER SEAT CONTROL UNIT DRIVER SIDE BAG SQUIB DRIVER'S SEAT LUMBAR SUPPORT ELECTRO PNEUMATIC CONTROLLER UNIT DRIVER'S SEAT LUMBAR SUPPORT PNEUMATIC PUMP ENGINE START/STOP BUTTON FRONT PASSENGER DOOR CONTROL UNIT FRONT SEAT HEATER/ SEAT VENTILATION CONTROL UNIT INSTRUMENT CLUSTER CONTROL UNIT LEFT FRONT ILLUMINATION DOOR SILL MOLDING LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR LEFT REAR DOOR CONTROL UNIT LEFT TABLET PC ELECTRICAL CONNECTOR LEFT THIRD ROW SEAT BELT BUCKLE SWITCH NCA WIRE PARKING SYSTEM CONTROL UNIT RADIO DATA TRANSMISSION TWO-WAY RADIO REAR SEAT ELECTRICAL CONNECTOR RIGHT REAR LAMP UNIT RIGHT REAR PASSENGER COMPARTMENT USB PORT 2 RIGHT TABLET PC ELECTRICAL CONNECTOR RIGHT THIRD ROW SEAT BELT BUCKLE SWITCH SOUND SYSTEM AMPLIFIER CONTROL UNIT SPECIAL VEHICLE MULTI-FUNCTION CONTROL UNIT (SVMCU (MSS)) SPECIAL-PURPOSE VEHICLE MULTIFUNCTION CONTROL UNIT STEERING COLUMN MODULE CONTROL UNIT SUBWOOFER AMPLIFIER TAXI PERIPHERAL DEVICE ELECTRICAL CONNECTOR TIRE PRESSURE MONITOR CONTROL UNIT TRAILER RECOGNITION CONTROL UNIT TRAILER SOCKET TRUNK LID/LIFTGATE CONTROL CONTROL UNIT TRUNK LID/LIFTGATE EXTERNAL OPERATION BUTTON TRUNK LID/LIFTGATE LOCK TWO-WAY RADIO VEHICLE GATEWAY ELECTRICAL CONNECTOR

BLK WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BRN WIRE BRN/RED WIRE CAN B H STERN CAN B L CAN H H CAN H L CAN HMI H CAN HMI L CAN LR H CAN LR L CAN PER H CAN PER L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE EXTERIOR LIGHTS, ELECTRIC PARKING BRAKE SWITCH GROUP FUSE 169 FUSE 22 FUSE 48 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/WHT WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INSTRUMENT CLUSTER CONTROL UNIT LEFT FRONT LAMP UNIT NCA WIRE PNK WIRE PNK/RED WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REAR AXLE LEVEL SENSOR RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT RIGHT FRONT LEVEL SENSOR RIGHT REAR LEVEL SENSOR SIG SIG (1) SIG (2) SIG 3 SIG 4 STEERING COLUMN MODULE CONTROL UNIT VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE VIO/WHT WIRE W/ MULTI- LINK AXLE W/ TORSION- BEAM AXLE W/O STEEL SUSPENSION WHT WIRE

BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BRN WIRE BRN/RED WIRE CAN B H STERN CAN B L CAN H H CAN H L CAN HMI H CAN HMI L CAN LR H CAN LR L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM DTRL ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT FUSE, RELAY MODULE EXTERIOR LIGHTS, ELECTRIC PARKING BRAKE SWITCH GROUP FUSE 169 FUSE 64 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/ORG WIRE GRY/WHT WIRE HB (+) HB (+) 15 HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER CONTROL UNIT LB (+) LEFT FRONT LAMP UNIT NCA WIRE PNK WIRE PNK/RED WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED/WHT WIRE RIGHT FRONT LAMP UNIT SIG SIG (1) SIG (2) SIG 3 SIG 4 SML STEERING COLUMN MODULE CONTROL UNIT TSI L (+) 31 TSI R (+) TSI R (+) 31 TSI-L (+) VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE VIO/WHT WIRE WHT WIRE

BRN WIRE CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM FLEX-E BM FLEX-E BP FUSE 109 GRN WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED NCA WIRE PNK WIRE RED/ORG WIRE SENS GND SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS STEERING WHEEL HEATER TEMP VEHICLE INTERIOR FUSE, RELAY MODULE

BLK WIRE BLK/BLU WIRE BLK/VIO WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FLEX-E BP FLEX-E BM PNK WIRE FRONT PASSENGER DOOR CONTROL UNIT FRONT PASSENGER SEAT ADJUSTMENT SWITCH GROUP FRONT PASSENGER SEAT BACKREST INCLINATION ADJUSTMENT MOTOR, HALL SENSOR FRONT PASSENGER SEAT CONTROL UNIT FRONT PASSENGER SEAT FORE/AFT ADJUSTMENT MOTOR, HALL SENSOR FRONT PASSENGER SEAT HEIGHT ADJUSTMENT MOTOR, HALL SENSOR FRONT PASSENGER SEAT INCLINATION ADJUSTMENT MOTOR, HALL SENSOR FUSE 109 FUSE 138 FUSE 163 GRN WIRE GRN/ORG WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED MOT GND/(+) MOT GND/(+) SIG ORG/ WIRE PNK WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/ORG WIRE RED/VIO WIRE RED/WHT WIRE SEATS SYSTEM SIG SIG PNK SIG WIRE STEERING COLUMN MODULE CONTROL UNIT VEHICLE INTERIOR FUSE, RELAY MODULE VIO WIRE W/ HEATED SEATS WHT/ORG WIRE

BLK/YEL WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L STERN CAN LR H CAN LR L CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM ENGINE COMPARTMENT FUSE, RELAY MODULE FUSE 169 FUSE 21 FUSE 44 HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED NCA WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE SIG SPRAY NOZZLE HOSE HEATER (W/ HEATED WINDSHIELD WASHER SYSTEM) STEERING COLUMN MODULE CONTROL UNIT VEHICLE INTERIOR FUSE, RELAY MODULE WINDSHIELD WASHER FLUID LEVEL INDICATOR SWITCH WIPER MOTOR