Mercedes-Benz CLS-class C257 (2017-2021) (top of steering column) Wiring diagrams

BLK WIRE BLK/BLU WIRE BRAKE FLUID LEVEL SWITCH BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/WHT WIRE CAN B H CAN B L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM COUPE CONVERTIBLE DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC PARKING BRAKE SWITCH FLEX-E BM FLEX-E BP FRONT SAM CONTROL UNIT FUSE 205 GRN WIRE GRY/BLU WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT ELECTRIC PARKING BRAKE ACTUATOR MOTOR LEFT FRONT AXLE RPM SENSOR NCA WIRE PNK WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RIGHT ELECTRIC PARKING BRAKE ACTUATOR MOTOR RIGHT FRONT AXLE RPM SENSOR RIGHT FRONT BRAKE WEAR SENSOR SIG STEERING COLUMN MODULE CONTROL UNIT VIO WIRE VIO/WHT WIRE WHT WIRE WHT/YEL WIRE YEL WIRE

BLK WIRE BLU WIRE BLU/GRN WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE CAN H H CAN H L CAN PER H CAN PER L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRONIC IGNITION SWITCH CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT FLEX-E BM FLEX-E BP FLEX-E BP PNK FLEX-E BM WIRE FUSE 205 FUSE 311 FUSE 415 FUSE 6 GRN WIRE GRN/ORG WIRE GRN/PNK WIRE GRN/WHT WIRE GRY/GRN WIRE HOT AT ALL TIMES INTELLIGENT DRIVE CONTROL UNIT (LEFT SIDE OF LUGGAGE COMPT) LEFT OUTER FRONT BUMPER RADAR SENSOR ME-SFI (ME) CONTROL UNIT MOT- MULTIPLE FUSE 1 PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE REAR FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RIGHT OUTER FRONT BUMPER RADAR SENSOR SENS (+) SENS 2 SENS 1 SENS GND STEERING COLUMN MODULE CONTROL UNIT STOP LAMP SWITCH THROTTLE VALVE ACTUATOR VIO WIRE VIO/WHT WIRE YEL/BLU WIRE

BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/RED 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 SEAT LUMBAR SUPPORT ADJUSTMENT CONTROL UNIT DRIVER SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH DRIVER SEAT LUMBAR SUPPORT PNEUMATIC PUMP DRIVER-SIDE FUSE, RELAY MODULE FLEX-E BP FLEX-E BM PNK WIRE FUSE 203 FUSE 211 FUSE 303 FUSE 4 GRN WIRE GRN/VIO WIRE HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LEFT FRONT SEAT ADJUSTMENT SWITCH GROUP MOT GND/(+) MULTIPLE FUSE 1 NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PUMP RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SEATS SYSTEM SENS SENS GND SIG STEERING COLUMN MEMORY CIRCUIT STEERING COLUMN MODULE CONTROL UNIT TEMP VIO WIRE VIO/WHT WIRE VIO/YEL WIRE W/ CLIMATE CONTROL WHT WIRE WHT/BLK WIRE YEL WIRE

BACKUP LAMPS CIRCUIT BL/TSI (+) BL/TSI (+) HECKL BLK/BLU WIRE BLK/ORG WIRE BLK/VIO WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DIAG DRIVER-SIDE FUSE, RELAY MODULE FLEX-E BM FLEX-E BP FUSE 200 FUSE 209 FUSE 211 FUSE 305 FUSE 477 GRN WIRE GRN/BLU WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE HOT AT ALL TIMES INNER LEFT REAR LAMP UNIT INNER RIGHT REAR LAMP UNIT INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL UNIT LEFT OUTSIDE MIRROR LEFT OUTSIDE MIRROR TURN SIGNAL LAMP LEFT REAR LAMP UNIT NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RFL (+) DIAG RIGHT FRONT DOOR CONTROL UNIT RIGHT OUTSIDE MIRROR RIGHT OUTSIDE MIRROR TURN SIGNAL LAMP RIGHT REAR LAMP UNIT SIG SIG GND SIG TL (+) HECKD STEERING COLUMN MODULE CONTROL UNIT TL (+) TL/PL (+) TL/PL/BL/TSI (+) TL/PL/BL/TSI (+) HECKR VIO WIRE VIO/BLU WIRE VIO/WHT WIRE YEL/WHT WIRE

BLK WIRE BLK/BLU WIRE BLK/VIO WIRE BLU WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L CAN B L CAN B H COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FLEX-E BM FLEX-E BP FRONT PASSENGER SEAT BACKREST INCLINATION ADJUSTMENT MOTOR FRONT PASSENGER SEAT CONTROL UNIT FRONT PASSENGER SEAT CUSHION LENGTH ADJUSTMENT MOTOR FRONT PASSENGER SEAT FORE/ AFT ADJUSTMENT MOTOR FRONT PASSENGER SEAT HEAD RESTRAINT ADJUSTMENT MOTOR FRONT PASSENGER SEAT HEIGHT ADJUSTMENT MOTOR FRONT PASSENGER SEAT INCLINATION ADJUSTMENT MOTOR FRONT PASSENGER SEAT LUMBAR SUPPORT ADJUSTMENT CONTROL UNIT FRONT PASSENGER SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH FRONT PASSENGER SEAT LUMBAR SUPPORT PNEUMATIC PUMP FUSE 211 FUSE 302 FUSE 304 FUSE 5 GRN WIRE GRN/VIO WIRE HOT AT ALL TIMES MOT GND/(+) MULTIPLE FUSE 1 NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE PUMP SIG RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT SEAT ADJUSTMENT SWITCH GROUP SEATS SYSTEM SENS SENS GND SIG SIG 31 STEERING COLUMN MODULE CONTROL UNIT TEMP VIO WIRE VIO/WHT WIRE VIO/YEL WIRE W/ CLIMATE CONTROL WHT WIRE WHT/BLK WIRE YEL WIRE

BRN WIRE CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FLEX-E BM FLEX-E BP FUSE 211 GRN WIRE HOT AT ALL TIMES NCA WIRE PNK WIRE RED WIRE SENS GND SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS STEERING WHEEL HEATER TEMP

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 CENTER CONSOLE CUP HOLDER ILLUMINATION FRONT CENTER CONSOLE USB CONNECTOR FRONT CIGARETTE LIGHTER W/ ASHTRAY ILLUMINATION FRONT SAM CONTROL UNIT (LEFT END OF DASH) FRONT VEHICLE INTERIOR POWER OUTLET FUSE 128 FUSE 200 FUSE 205 FUSE 316 GRN WIRE GRY WIRE GRY/BLU WIRE HEAD UNIT HOT AT ALL TIMES HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE PNK/RED WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE SENS SIG (2) SIG 1 PNK SENS (+) COC WIRE SIG 1 PNK SENS WIRE SIG 3 STEERING COLUMN MODULE CONTROL UNIT VIO WIRE W/ SMOKER'S PACKAGE W/ WIRELESS MOBILE PHONE CHARGING W/O SMOKER'S PACKAGE WHT WIRE

58 D BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/VIO WIRE CAN B H CAN B 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 CONTROL UNIT FUSE 202 FUSE 6 GRN WIRE INTEGRATED STARTER GENERATOR KEYLESS GO START/STOP BUTTON LIN ME-SFI (ME) CONTROL UNIT MPAC U MPAC V MPAC X MPAC Y MPAC Z NCA WIRE ON-BOARD ELECTRICAL SYSTEM BATTERY ORG/ WIRE RED WIRE RED/BLK WIRE RED/WHT (OR RED) WIRE RED/WHT WIRE SIG SIG (1) SIG (2) SIG 3 STARTER GENERATOR CONTROL UNIT STEERING COLUMN MODULE CONTROL UNIT WHT WIRE YEL WIRE

BLK/RED WIRE BLK/WHT WIRE BLU/RED 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-E BM FLEX-E BP FUSE 203 FUSE 211 FUSE 303 GRN WIRE HOT AT ALL TIMES 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 SENS SENS GND STEERING COLUMN IN/OUT ADJUSTMENT MOTOR STEERING COLUMN MODULE CONTROL UNIT STEERING COLUMN UP/DOWN ADJUSTMENT MOTOR VIO WIRE W/ CLIMATE CONTROL

BLK WIRE BLK/GRN WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/YEL WIRE DRIVER AIR BAG SQUIB 1 DRIVER AIR BAG SQUIB 2 DRIVER KNEE BAG SQUIB FRONT PASSENGER AIR BAG BLEED VALVE SQUIB FRONT PASSENGER AIR BAG SQUIB 1 FRONT PASSENGER AIR BAG SQUIB 2 GRN/YEL WIRE GRY WIRE GRY/YEL WIRE LEFT REAR EMERGENCY TENSIONING RETRACTOR SQUIB NCA WIRE PNK/YEL WIRE RED/BRN WIRE SIG STEERING COLUMN MODULE CONTROL UNIT VIO WIRE VIO/YEL WIRE