Mercedes-Benz CLS-class C257 facelift (2021-2024) electronic ignition switch control unit Wiring diagrams

BLK WIRE BLK/VIO WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DCS DRIVER-SIDE FUSE, RELAY MODULE ELECTRONIC IGNITION SWITCH CONTROL UNIT FUSE 203 GRN WIRE GRY WIRE GRY/RED WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT FRONT DOOR AMBIANCE ILLUMINATION LEFT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH LEFT FRONT DOOR CONTROL UNIT (IN LEFT FRONT DOOR) LEFT FRONT DOOR EXIT LAMP LEFT FRONT DOOR HANDLE AMBIANCE ILLUMINATION LEFT FRONT DOOR LOCK LEFT FRONT DOOR POWER CLOSING ACTUATOR MOTOR LEFT FRONT DOOR STOWAGE COMPARTMENT ILLUMINATION LEFT FRONT DOOR WARNING LAMP LIN MOT GND/(+) PNK/VIO WIRE PNK/WHT WIRE RED WIRE RIGHT FRONT DOOR EXIT LAMP RIGHT FRONT DOOR WARNING LAMP SIG YEL WIRE

BLK WIRE BLK/VIO WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DCS DRIVER-SIDE FUSE, RELAY MODULE ELECTRONIC IGNITION SWITCH CONTROL UNIT FUSE 203 GRN WIRE GRY WIRE GRY/RED WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT FRONT DOOR AMBIANCE ILLUMINATION LEFT FRONT DOOR CENTRAL LOCKING INTERIOR SWITCH LEFT FRONT DOOR CONTROL UNIT (IN LEFT FRONT DOOR) LEFT FRONT DOOR EXIT LAMP LEFT FRONT DOOR HANDLE AMBIANCE ILLUMINATION LEFT FRONT DOOR LOCK LEFT FRONT DOOR POWER CLOSING ACTUATOR MOTOR LEFT FRONT DOOR STOWAGE COMPARTMENT ILLUMINATION LEFT FRONT DOOR WARNING LAMP LIN MOT GND/(+) PNK/VIO WIRE PNK/WHT WIRE RED WIRE RIGHT FRONT DOOR EXIT LAMP RIGHT FRONT DOOR WARNING LAMP SIG YEL WIRE

BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM ELECTRONIC IGNITION SWITCH CONTROL UNIT FULLY INTEGRATED TRANSMISSION CONTROL ELECTRIC CONTROLLER UNIT FUSE 477 GRY/BLU WIRE GRY/YEL WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT REAR LAMP UNIT REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED/GRY WIRE RIGHT REAR LAMP UNIT SIG (+) HECKL SIG HECKR VIO WIRE VIO/WHT WIRE

BLK WIRE BLU WIRE BLU/GRN WIRE BLU/WHT WIRE BRN WIRE CAN PER H CAN PER L COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRONIC IGNITION SWITCH CONTROL UNIT FLEX FLEX PNK FLEX WIRE FUSE 205 FUSE 311 FUSE 415 FUSE 6 GRN WIRE GRN/PNK WIRE GRN/WHT WIRE GRY/GRN WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INTELLIGENT DRIVE CONTROL UNIT (LEFT SIDE OF LUGGAGE COMPT) LEFT OUTER FRONT BUMPER RADAR SENSOR ME-SFI (ME) CONTROL UNIT MULTIPLE FUSE 1 PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE REAR FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/VIO WIRE RIGHT OUTER FRONT BUMPER RADAR SENSOR SENS GND SIG STEERING COLUMN MODULE CONTROL UNIT SYSTEM THROTTLE VALVE ACTUATOR VIO WIRE YEL/BLU WIRE

10 9 ETH (-) PNK ETH (+) WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CAN-D H CAN-D L DIAGNOSTIC CONNECTOR ELECTRONIC IGNITION SWITCH CONTROL UNIT ETH (+) ETHERNET ETH (-) SIG 6 7 FUSE 308 GRN WIRE GRY WIRE GRY/WHT WIRE HEAD UNIT HERMES CONTROL UNIT HOT AT ALL TIMES INSTRUMENT CLUSTER CONTROL UNIT ORG/ WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE RED/VIO WIRE SIG

AMBIANCE ILLUMINATION CONTROL UNIT BRN WIRE BRN/GRN WIRE DIAGNOSTIC CONNECTOR DRIVETRAIN CONTROL UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE FUSE, RELAY MODULE FRONT SAM CONTROL UNIT HYBRID CAN (CAN L) POTENTIAL DISTRIBUTOR INNER RIGHT REAR LAMP UNIT LEFT EXHAUST FLAP ACTUATOR MOTOR LEFT FANFARE HORN LEFT FRONT DOOR CONTROL UNIT LEFT REAR DOOR CONTROL UNIT LOW TEMPERATURE CIRCUIT CIRCULATION PUMP 1 LOW TEMPERATURE CIRCUIT SWITCHOVER VALVE NCA WIRE OVERHEAD CONSOLE OVERHEAD CONTROL PANEL CONTROL UNIT PARK PAWL CAPACITOR PERIPHERY CAN (CAN PER) POTENTIAL DISTRIBUTOR RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS REAR SAM CONTROL UNIT RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT LAMP UNIT RIGHT INTERIOR CAN (CAN B) POTENTIAL DISTRIBUTOR RIGHT REAR LAMP UNIT SLIDING ROOF CONTROL MODULE SOUND SYSTEM AMPLIFIER CONTROL UNIT STARTER GENERATOR CONTROL UNIT STEREO MULTI-FUNCTION CAMERA USER INTERFACE CAN (CAN HMI) POTENTIAL DISTRIBUTOR

BRN WIRE BRN/GRN 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 ELECTRONIC IGNITION SWITCH CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT FLEX-E BM FLEX-E BP FLEX-E BP PNK FLEX-E BM PNK FLEX-E BM WIRE GRN WIRE GRN/WHT WIRE LEFT FRONT LAMP UNIT LEFT FRONT SEAT ADJUSTMENT SWITCH GROUP LEFT FRONT SEAT CLIMATE CONTROL GROUP PARKING SYSTEM CONTROL UNIT PERIPHERY CAN (CAN PER) POTENTIAL DISTRIBUTOR PNK WIRE RIGHT FRONT LAMP UNIT SHORT, LONG-RANGE RADAR SENSOR STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT VIO WIRE VIO/WHT WIRE YEL WIRE YEL/BLK WIRE

58 D BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN L H CAN L L CIRCUIT 30 TERMINAL BLOCK COMPUTER DATA LINES SYSTEM DC/DC CONVERTER CONTROL UNIT DRIVER-SIDE FUSE, RELAY MODULE ELECTRONIC IGNITION SWITCH CONTROL UNIT FLEX-E BP PNK FLEX-E BM WIRE FRONT SAM CONTROL UNIT FULLY INTEGRATED TRANSMISSION CONTROL ELECTRIC CONTROLLER UNIT FUSE 202 FUSE 315 FUSE 6 GRN WIRE HOT AT ALL TIMES KEYLESS GO START/STOP BUTTON ME-SFI (ME) CONTROL UNIT NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY ORG/ WIRE ORG/WHT WIRE PARTITION WALL BUS BAR PASSENGER-SIDE A-PILLAR FUSE BOX PYRO- FUSE RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE SIG SIG (1) SIG (2) SIG 3 STARTER GENERATOR CONTROL UNIT STEERING COLUMN MODULE CONTROL UNIT WHT WIRE YEL WIRE

AUXILIARY HEATER HEATING ELEMENT BATTERY DISCONNECT BRN WIRE BRN/WHT WIRE ELECTRONIC IGNITION SWITCH CONTROL UNIT FLEX FUSE 325 GRN WIRE HOT W/ MULTIPLE FUSE 1 OVERHEAD CONSOLE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE RED WIRE RED/GRN WIRE STEREO MULTI-FUNCTION CAMERA SWITCH RELAY ENERGIZED

BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRONIC IGNITION SWITCH CONTROL UNIT FLEX-E BP PNK FLEX-E BM WIRE FULLY INTEGRATED TRANSMISSION CONTROL ELECTRIC CONTROLLER UNIT FUSE 10 FUSE 205 GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INSTRUMENT CLUSTER CONTROL UNIT RED/BLU WIRE RED/GRN WIRE SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL DOWNSHIFT BUTTON STEERING WHEEL ELECTRONICS STEERING WHEEL UPSHIFT BUTTON VEHICLE INTERIOR PREFUSE BOX VIO WIRE VIO/WHT WIRE