Mercedes-Benz CLS-class C257 facelift (2021-2024) fuse 203 Wiring diagrams

BATTERY DISCONNECT SWITCH RELAY ENERGIZED BLK WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FRONT SAM CONTROL UNIT FUSE 203 FUSE 302 FUSE 305 FUSE 316 HOT W/ HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INSIDE REAR VIEW MIRROR LEFT FRONT DOOR CONTROL UNIT LEFT OUTSIDE MIRROR OVERHEAD CONSOLE OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER-SIDE A-PILLAR FUSE BOX RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTSIDE MIRROR YEL WIRE

BATTERY DISCONNECT BLK WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FUSE 203 FUSE 302 GRN WIRE GRN/WHT WIRE HECKD HOT W/ LEFT FRONT DOOR CONTROL UNIT LEFT OUTER REAR BUMPER RADAR SENSOR LEFT OUTSIDE MIRROR PASSENGER-SIDE A-PILLAR FUSE BOX REAR SAM CONTROL UNIT RED WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTER REAR BUMPER RADAR SENSOR RIGHT OUTSIDE MIRROR SIG SWITCH RELAY ENERGIZED

BLK WIRE BLU/BRN WIRE BLU/ORG WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FUSE 203 FUSE 214 FUSE 301 FUSE 302 FUSE 417 FUSE 476 GRN WIRE GRN/YEL WIRE GRY/BLK WIRE HECKL HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LUGGAGE COMPARTMENT LAMP PASSENGER-SIDE A-PILLAR FUSE BOX PASSENGER-SIDE EXTERIOR AMBIANCE ILLUMINATION REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE RIGHT REAR FOOTWELL LAMP SIG SIG (1) SIG 1 HECKD TRUNK LID/ LIFTGATE LOCK TRUNK LID/LIFTGATE EXTERNAL OPERATION SWITCH YEL WIRE YEL/BLU WIRE YEL/RED WIRE

BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER SEAT BACKREST INCLINATION ADJUSTMENT MOTOR DRIVER SEAT CONTROL UNIT DRIVER SEAT CUSHION LENGTH ADJUSTMENT MOTOR DRIVER SEAT FORE/AFT ADJUSTMENT MOTOR DRIVER SEAT HEAD RESTRAINT ADJUSTMENT MOTOR DRIVER SEAT HEIGHT ADJUSTMENT MOTOR DRIVER SEAT INCLINATION ADJUSTMENT MOTOR DRIVER-SIDE FUSE, RELAY MODULE FLEX FUSE 203 FUSE 211 FUSE 303 GRN WIRE GRN/VIO WIRE GRY WIRE HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT FRONT DOOR CONTROL UNIT LEFT FRONT SEAT ADJUSTMENT SWITCH GROUP NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE RED WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SEATS SYSTEM SIG STEERING COLUMN MEMORY CIRCUIT STEERING COLUMN MODULE CONTROL UNIT VIO WIRE VIO/WHT WIRE VIO/YEL WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE DRIVER-SIDE POWER WINDOW, OUTSIDE MIRROR ADJUSTMENT SWITCH GROUP FUSE 203 FUSE 302 GRN WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT FRONT DOOR CONTROL UNIT LEFT OUTSIDE MIRROR PASSENGER-SIDE A-PILLAR FUSE BOX RED WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTSIDE MIRROR YEL/GRN WIRE

BLK/WHT WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER SEAT CONTROL UNIT DRIVER-SIDE FUSE, RELAY MODULE FUSE 203 FUSE 302 FUSE 303 FUSE 304 HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT FRONT BACKREST SEAT VENTILATION MOTORS LEFT FRONT DOOR CONTROL UNIT LEFT FRONT SEAT ADJUSTABLE SEAT CUSHION LENGTH HEATER PAD LEFT FRONT SEAT ADJUSTMENT SWITCH GROUP LEFT FRONT SEAT BACKREST HEATER PAD LEFT FRONT SEAT BACKREST SIDE BOLSTER HEATER PAD LEFT FRONT SEAT BACKREST SIDE BOLSTER HEATER PAD TEMPERATURE SENSOR LEFT FRONT SEAT CLIMATE CONTROL SWITCH GROUP LEFT FRONT SEAT CUSHION HEATER PAD LEFT FRONT SEAT CUSHION SEAT VENTILATION MOTORS LEFT FRONT SEAT CUSHION SIDE BOLSTER HEATER PAD LEFT FRONT SEAT CUSHION SIDE BOLSTER HEATER PAD TEMPERATURE SENSOR NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE SIG VIO WIRE W/ SEAT HEATER W/ SEAT HEATER PLUS

BLK WIRE BLU WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE CAN B H CAN B L CENTER CONSOLE ARMREST STOWAGE COMPARTMENT SWITCH, CONTROLS ILLUMINATION COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC PARKING BRAKE SWITCH ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FLEX-E BM FLEX-E BP FRONT SAM CONTROL UNIT (LEFT END OF DASH) FUSE 128 FUSE 200 FUSE 203 FUSE 205 FUSE 214 GRN WIRE GRY WIRE GRY/BLU WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED OVERHEAD CONTROL PANEL CONTROL UNIT PNK WIRE PNK/RED WIRE REAR CIGARETTE LIGHTER RED WIRE RED/BLU WIRE RED/WHT WIRE SENS SIG SIG (2) SIG 1 PNK SENS (+) COC WIRE SIG 3 STEERING COLUMN MODULE CONTROL UNIT VIO WIRE WHT WIRE

BLK WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE DRIVER-SIDE POWER WINDOW, OUTSIDE MIRROR ADJUSTMENT SWITCH GROUP FLEX FUSE 203 FUSE 211 FUSE 302 GRN WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT FRONT DOOR CONTROL UNIT (IN LEFT FRONT DOOR) LEFT FRONT SEAT ADJUSTMENT SWITCH GROUP LEFT OUTSIDE MIRROR PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE RED WIRE RED/WHT WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT SEAT ADJUSTMENT SWITCH GROUP RIGHT OUTSIDE MIRROR SEATS SYSTEM SIG STEERING COLUMN MODULE CONTROL UNIT (TOP OF STEERING COLUMN) VIO WIRE WHT WIRE YEL/GRN WIRE

BLK/RED WIRE BLK/WHT WIRE BLU/RED WIRE BLU/VIO WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER SEAT CONTROL UNIT DRIVER-SIDE FUSE, RELAY MODULE FLEX FUSE 203 FUSE 211 FUSE 303 GRN WIRE GRY WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT FRONT DOOR CONTROL UNIT LEFT FRONT SEAT ADJUSTMENT SWITCH GROUP MOT GND/(+) PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE RED WIRE RED/GRN WIRE RED/WHT WIRE SIG STEERING COLUMN IN/OUT ADJUSTMENT MOTOR STEERING COLUMN MODULE CONTROL UNIT STEERING COLUMN UP/DOWN ADJUSTMENT MOTOR VIO WIRE

BLK WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/ORG WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER TRUNK LID/ LIFTGATE CONTROL BUTTON DRIVER-SIDE FUSE, RELAY MODULE FRONT SAM CONTROL UNIT FUSE 203 FUSE 477 FUSE 478 GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED LEFT FRONT DOOR CONTROL UNIT MOT GND/(+) MOT GND/(+) SIG REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE SEPARATE TRUNK LID LOCK SWITCH SIG SIG (+) COC SIG (+) HECKD SIG HECKR TANK CAP CENTRAL LOCKING ACTUATOR TRUNK LID CONTROL UNIT TRUNK LID EMERGENCY OPENING SWITCH TRUNK LID/ LIFTGATE CONTROL BUTTON TRUNK LID/ LIFTGATE CONTROL WARNING BUZZER TRUNK LID/ LIFTGATE EXTERNAL OPERATION SWITCH TRUNK LID/ LIFTGATE LOCK TRUNK LID/ LIFTGATE LOCKING ELEMENT TRUNK LID/LIFTGATE CONTROL DRIVE UNIT WHT WIRE WHT/GRN WIRE