Mercedes-Benz CLS-class C257 facelift (2021-2024) front sam control unit Wiring diagrams

BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM COOLANT LEVEL SWITCH COOLANT TEMPERATURE SENSOR ELECTRIC COOLANT PUMP ENGINE COMPARTMENT PREFUSE BOX ENGINE FUSE, RELAY MODULE FAN MOTOR (BEHIND RADIATOR) FRONT SAM CONTROL UNIT FUSE 119 FUSE 3 FUSE 311 FUSE 7 GRN/BLK WIRE HOT AT ALL TIMES HOT W/ CPC RELAY ENERGIZED ME-SFI (ME) CONTROL UNIT PASSENGER-SIDE A-PILLAR FUSE BOX RED WIRE RED/BLU WIRE RED/VIO WIRE RED/WHT WIRE SIG SIG 87 YEL/BLK WIRE

BLK WIRE BLK/BRN WIRE BLU WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN H H CAN H L COC COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE FUSE, RELAY MODULE EXTERIOR LIGHTS SWITCH FRONT SAM CONTROL UNIT FUSE 110 FUSE 128 FUSE 133 FUSE 200 FUSE 305 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER CONTROL UNIT LEFT FRONT LAMP UNIT LEFT REAR LEVEL SENSOR OVERHEAD CONSOLE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE PNK/RED WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/YEL WIRE RIGHT FRONT LAMP UNIT SIG VIO WIRE VIO/WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L 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 FRONT SAM CONTROL UNIT FUSE 201 FUSE 205 GRN WIRE HORNS CONTACT PLATE HOT AT ALL TIMES LEFT FANFARE HORN RED/BLU WIRE RED/WHT WIRE RIGHT FANFARE HORN SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL ELECTRONICS YEL WIRE

AC HOUSING, BATTERY DISCONNECT SWITCH RELAY BATTERY SENSOR BLK WIRE BLK/YEL WIRE BRN WIRE BRN/VIO WIRE CIRCUIT 30 TERMINAL BLOCK ELECTRICAL POWER STEERING CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT FAN MOTOR FROM ELECTRONIC IGNITION SWITCH CONTROL UNIT (DIAGRAM 1 OF 9) FROM REAR FUSE, RELAY MODULE (DIAGRAM 6 OF 9) FRONT SAM CONTROL UNIT FSS FULLY INTEGRATED TRANSMISSION CONTROL ELECTRIC CONTROLLER UNIT FUSE 1 FUSE 10 FUSE 13 FUSE 2 FUSE 3 FUSE 4 FUSE 5 FUSE 6 FUSE 7 FUSE 8 FUSE 9 GRY WIRE HECKD N/A NOT USED ON-BOARD ELECTRICAL SYSTEM BATTERY PYROFUSE REAR SAM CONTROL UNIT RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT (OR RED) WIRE RED/WHT WIRE TO DC/DC CONVERTER CONTROL UNIT (DIAGRAM 2 OF 9) TO DRIVER-SIDE FUSE, RELAY MODULE (DIAGRAM 2 OF 9) TO ENGINE FUSE, RELAY MODULE (DIAGRAM 7 OF 9) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 5 OF 9) TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 8 OF 9) TO REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 9) VEHICLE INTERIOR PREFUSE BOX VIO WIRE

BACKUP RELAY BLK WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CLIMATE CONTROL OPERATING UNIT CLIMATE CONTROL UNIT COMPUTER DATA LINES SYSTEM DC/DC CONVERTER CONTROL UNIT FROM ENGINE COMPARTMENT PREFUSE BOX (DIAGRAM 1 OF 9) FROM REAR FUSE, RELAY MODULE (DIAGRAM 6 OF 9) FRONT SAM CONTROL UNIT FUSE 200 FUSE 201 FUSE 202 FUSE 203 FUSE 204 FUSE 205 FUSE 206 FUSE 207 FUSE 208 FUSE 209 FUSE 210 FUSE 211 FUSE 212 FUSE 213 FUSE 214 FUSE 215 FUSE 216 FUSE 217 FUSE 218 FUSE 219 FUSE 220 GRY WIRE HEAD UNIT/INSTRUMENT CLUSTER DISPLAY CLUSTER LEFT FRONT DOOR CONTROL UNIT LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR LEFT REAR DOOR CONTROL UNIT N/A N/A N/A NCA WIRE NOT USED PYROFUSE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE STARTER GENERATOR CONTROL UNIT STEERING COLUMN MODULE CONTROL UNIT UPPER CONTROL PANEL CONTROL UNIT

AIR BODY CONTROL RELAY BACKUP RELAY BLK/RED WIRE BRN WIRE CPC RELAY DRIVETRAIN CONTROL UNIT ELECTRIC REFRIGERANT COMPRESSOR ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT TERMINAL 15 RELAY EXTERIOR LIGHTS SWITCH FROM ENGINE COMPARTMENT PREFUSE BOX (DIAGRAM 1 OF 9) FRONT SAM CONTROL UNIT FUSE 106 FUSE 108 FUSE 109 FUSE 110 FUSE 111 FUSE 112 FUSE 117 FUSE 120 FUSE 121 FUSE 122 FUSE 123 FUSE 124 FUSE 125 FUSE 126 FUSE 128 FUSE 129 FUSE 130 FUSE 133 LEFT FRONT LAMP UNIT ME-SFI (ME) CONTROL UNIT N/A NOT USED PNK WIRE PNK/RED WIRE RED WIRE RED/BLK WIRE RED/WHT (OR RED) WIRE RIGHT FRONT LAMP UNIT STARTER CIRCUIT 50 RELAY TO BACKUP RELAY (DIAGRAM 4 OF 9) TO PARK PAWL CAPACITOR (DIAGRAM 9 OF 9) WIPER MOTOR

BLK WIRE BRAKE FLUID LEVEL SWITCH BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L CAN H H CAN H L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DRIVER SEAT BELT BUCKLE SWITCH DRIVER SEAT POSITION DETECTION SWITCH DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX FRONT SAM CONTROL UNIT FUSE 1 FUSE 200 FUSE 203 FUSE 312 FUSE 463 GRN WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED INSTRUMENT CLUSTER CONTROL UNIT LEFT FRONT DOOR CONTROL UNIT LEFT FRONT DOOR LOCK NCA WIRE ORG/GRN WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK/VIO WIRE PNK/WHT WIRE REAR FUSE, RELAY MODULE RED WIRE RED/BLU WIRE RED/WHT WIRE SIG SIG GND SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT VIO WIRE VIO/WHT WIRE YEL WIRE

BLK/BLU WIRE BLK/YEL WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE ENGINE FUSE, RELAY MODULE FLEX FRONT SAM CONTROL UNIT FUSE 111 FUSE 200 FUSE 211 FUSE 305 GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY DISCONNECT SWITCH RELAY ENERGIZED HOT W/ ENGINE COMPARTMENT TERMINAL 15 RELAY ENERGIZED INSTRUMENT CLUSTER CONTROL UNIT OVERHEAD CONSOLE PASSENGER-SIDE A-PILLAR FUSE BOX PNK WIRE RAIN/LIGHT SENSOR W/ ADDITIONAL FUNCTIONS RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE SIG SPRAY NOZZLE HOSE HEATER STEERING COLUMN MODULE CONTROL UNIT VIO WIRE VIO/WHT WIRE WINDSHIELD WASHER FLUID LEVEL INDICATOR SWITCH WINDSHIELD WASHER SYSTEM PUMP WIPER MOTOR YEL WIRE

BLK WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DC/DC CONVERTER CONTROL UNIT FAN MOTOR FRONT SAM CONTROL UNIT GRN WIRE GRN/BLK WIRE GRN/GRY WIRE KNOCK SENSOR #2 KNOCK SENSOR 1 PNK WIRE PNK/RED WIRE PRESSURE SENSOR DOWNSTREAM OF AIR FILTER PRESSURE, TEMPERATURE SENSOR DOWNSTREAM OF THROTTLE VALVE PRESSURE, TEMPERATURE SENSOR UPSTREAM OF THROTTLE VALVE PURGING PRESSURE SENSOR RED WIRE RED/BLU WIRE RED/YEL WIRE SIG WHT/BLK WIRE WSR YEL WIRE YEL/BLK WIRE YEL/RED WIRE