Mercedes-Benz S-class W222/C217/A217 facelift (2017-2020) yel Wiring diagrams

ACTIVE BELT BUCKLE CONTROL UNIT BLU WIRE BLU/PNK WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/RED WIRE BRN/VIO WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FUSE 424 FUSE 432 FUSE 433 GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE HOT AT ALL TIMES ILL LEFT REAR SEAT ACTIVE BELT BUCKLE MOTOR NCA WIRE REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED WIRE RED/WHT WIRE RIGHT REAR SEAT ACTIVE BELT BUCKLE MOTOR SHIELD SIG SIG LED 1-B WHT WIRE YEL WIRE

AUX SUPPLY BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L CAN LR H CAN LR L COMPUTER DATA LINES SYSTEM DIRECT SELECT LEVER DRIVER-SIDE FUSE, RELAY MODULE ELECTRIC AUXILIARY OIL PUMP ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX FLEX-E BP PNK FLEX-E BM WIRE FULLY INTEGRATED TRANSMISSION CONTROL UNIT FULLY INTEGRATED TRANSMISSION CONTROL UNIT (INSIDE BOTTOM OF TRANSMISSION) FUSE 211 FUSE 5 GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INTERNAL TRANSMISSION SPEED RPM SENSOR LUBRICATING PRESSURE SOLENOID NCA WIRE OUTPUT SHAFT RPM SENSOR PARK PAWL LIFT SOLENOID PARK PAWL POSITION SENSOR PRESSURE SENSOR RED WIRE SIG STEERING COLUMN MODULE CONTROL UNIT STEERING WHEEL DOWNSHIFT BUTTON STEERING WHEEL ELECTRONICS STEERING WHEEL UPSHIFT BUTTON TORQUE CONVERTER LOCKUP CLUTCH SOLENOID TRANSMISSION OIL TEMPERATURE SENSOR TURBINE WHEEL RPM SENSOR WORKING PRESSURE SOLENOID YEL WIRE YEL/WHT WIRE

BRN WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DRIVER-SIDE FUSE, RELAY MODULE FUSE 1 FUSE 213 FUSE 3 FUSE 310 HOT AT ALL TIMES LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR MULTIPLE FUSE 2 PASSENGER-SIDE A-PILLAR FUSE BOX RED/WHT WIRE RED/YEL WIRE RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR YEL WIRE YEL/WHT WIRE

AMBIANCE ILLUMINATION CONTROL UNIT BLK/RED WIRE BRN WIRE BRN/BLU WIRE CIGARETTE LIGHTER W/ REAR CENTER CONSOLE ILLUMINATION COUPE CONVERTIBLE COUPE CONVERTIBLE, SEDAN FROM REAR PREFUSE BOX (DIAGRAM 5 OF 7) FRONT CIGARETTE LIGHTER W/ ASHTRAY ILLUMINATION FRONT SAM CONTROL UNIT FUEL PUMP CONTROL UNIT FUSE 403 FUSE 404 FUSE 405 FUSE 406 FUSE 407 FUSE 408 FUSE 411 FUSE 417 FUSE 455 FUSE 456 FUSE 457 FUSE 458 FUSE 459 FUSE 466 GRY/BLU WIRE HEATED REAR WINDOW RELAY HEATING ELEMENT ILLUMINATION LUGGAGE COMPARTMENT SOCKET MULTICONTOUR SEAT PNEUMATIC PUMP N/A NCA WIRE PNK/RED WIRE REAR BACKREST REFRIGERATOR BOX REAR CIGARETTE LIGHTER W/ ASHTRAY ILLUMINATION REAR CONTROL UNIT REAR CUP HOLDER REAR SAM CONTROL UNIT RED WIRE RED/BLK WIRE RED/WHT WIRE RESERVE FUSE 410 RESERVE FUSE 460 RESERVE FUSE 465 RIGHT REAR DOOR CONTROL UNIT SEDAN SUBWOOFER AMPLIFIER TO DC/AC CONVERTER CONTROL UNIT (DIAGRAM 1 OF 7) TO FUSE 477 (DIAGRAM 4 OF 7) VEHICLE INTERIOR TERMINAL 15 RELAY YEL WIRE

1 OF 7) AUX BATTERY DISCONNECT SWITCH RELAY BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L CAN HMI H CAN HMI L CAN PER H CAN PER L CAN-D H CAN-D L COMPUTER DATA LINES SYSTEM CONTROL UNIT) COUPE, CONVERTIBLE SEDAN W/O ECO START/STOP W/ ECO START/STOP DECOUPLING RELAY ECO START/STOP FUNCTION ADDITIONAL BATTERY ECO START/STOP FUNCTION ADDITIONAL BATTERY RELAY ELECTRONIC IGNITION SWITCH CONTROL UNIT FIRE EXTINGUISHING SYSTEM, EMERGENCY FRESH AIR SYSTEM FLEX-E BM FLEX-E BP FROM PASSENGER- FROM PYROTECHNICAL SEPARATOR (DIAGRAM FROM REAR FUSE, RELAY MODULE (DIAGRAM 4 OF 7) FRONT SAM CONTROL UNIT FULLY INTEGRATED TRANSMISSION CONTROL UNIT FUSE FUSE 1 FUSE 2 FUSE 3 FUSE 4 FUSE 41 FUSE 42 FUSE 45 FUSE 46 FUSE 47 FUSE 48 FUSE 49 FUSE 5 FUSE 54 GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/WHT WIRE KEYLESS GO START/STOP BUTTON KEYLESS-GO CONTROL UNIT LEFT FRONT DOOR CONTROL UNIT N/A OPERATING UNIT PAS (GAS), SPECIAL SIGNAL SYSTEM PNK WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE RESERVE FUSE 10 RESERVE FUSE 44 RESERVE FUSE 53 RESERVE FUSE 6 RESERVE FUSE 7 RESERVE FUSE 8 RESERVE FUSE 9 RIGHT FRONT POWER WINDOW HYDRAULIC PUMP RELAY SEDAN SIDE A-PILLAR FUSE BOX SIG SIG DF SPECIAL PROTECTION VEHICLES FUSE BOX SPECIAL SIGNAL SYSTEM SUPPLY TEMPERATURE SENSOR TO PASSENGER-SIDE A-PILLAR FUSE BOX (DIAGRAM 6 OF 7) TO REAR FUSE, RELAY MODULE (DIAGRAM 3 OF 7) TO VEHICLE INTERIOR PREFUSE BOX (DIAGRAM 1 OF 7) UPPER RIGHT ENGINE COMPARTMENT FIRE EXTINGUISHING SYSTEM VIO/YEL WIRE W/ TOP PROTECTION WAKEUP WINDSHIELD HEATER CONTROL UNIT YEL WIRE YEL/WHT WIRE

BLK WIRE BLK/BLU WIRE BRN WIRE CAN H L CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM ELECTRIC PARKING BRAKE SWITCH ELECTRONIC STABILITY PROGRAM CONTROL UNIT FUSE 24 GRN WIRE GRY/BLU WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT ELECTRIC PARKING BRAKE ACTUATOR MOTOR M +(-) CAN H H M+ (-) M+ (-) 31 NCA WIRE RED WIRE RED/WHT WIRE RIGHT ELECTRIC PARKING BRAKE ACTUATOR MOTOR SIG VEHICLE INTERIOR PREFUSE BOX VIO WIRE VIO/WHT WIRE YEL WIRE YEL/WHT WIRE

BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/PNK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/VIO WIRE BRN/WHT WIRE CAN H H CAN H L COMPUTER DATA LINES SYSTEM CRASH ANALOG DRIVER BELT FORCE LIMITER DRIVER ETR (GUS) SQUIB DRIVER SIDEBAG SQUIB FRONT PASSENGER BELT FORCE LIMITER FRONT PASSENGER SIDEBAG SQUIB GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES INERTING SYSTEM SQUIB LEFT FRONT BUMPER PEDESTRIAN PROTECTION SENSOR LEFT REAR BELTBAG SQUIB LEFT SIDEBAG SENSOR ME-SFI (ME) CONTROL UNIT N/A PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PNK/YEL WIRE PYFESE(+) PYFSE (-) PYRO- FUSE PYROTECHNICAL SEPARATOR RED/PNK WIRE RIGHT ACTIVE ENGINE HOOD SQUIB RIGHT FRONT DOOR PRESSURE SENSOR RIGHT REAR BELTBAG SQUIB RIGHT REAR SIDEBAG SQUIB SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT VEHICLE INTERIOR PREFUSE BOX VIO WIRE VIO/BLU WIRE VIO/GRY WIRE VIO/WHT WIRE W/ BELTBAG FOR OUTER REAR SEATS 4.0L TURBO 3.0L TURBO WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/PNK WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/VIO WIRE YEL/WHT WIRE

BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLU/PNK WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE COUPE, SEDAN DRIVER'S SEAT PRE-SAFE PULSE SQUIB FRONT PASSENGER ETR (GUS) SQUIB FRONT PASSENGER SEAT OCCUPIED RECOGNITION FRONT PASSENGER SEAT OCCUPIED RECOGNITION, ACSR FRONT PASSENGER SEAT PRE-SAFE PULSE SQUIB GRN/BLU WIRE GRY WIRE HERMES CONTROL UNIT LEFT HEADBAG SQUIB LEFT REAR EMERGENCY TENSIONING RETRACTOR SQUIB LEFT REAR SIDEBAG SQUIB LEFT WINDOWBAG SQUIB NCA WIRE PNK/BLK WIRE PNK/GRN WIRE SEDAN VIO/GRY WIRE W/ FRONT PASSENGER SEAT, WEIGHT DETECTION W/ MEMORY, AUTOMATIC CHILD SEAT RECOGNITION (ACSR (AKSE)) W/O MEMORY WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT WHT/BLK WIRE WHT/PNK WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE

BLK/RED WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/PNK WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN B L CAN-B H AAG CENTER REAR SEAT BELT BUCKLE SWITCH COMPUTER DATA LINES SYSTEM FUSE 312 FUSE 477 GRN/GRY WIRE GRN/RED WIRE GRY/GRN WIRE HOT AT ALL TIMES LEFT ACTIVE ENGINE HOOD SQUIB LEFT REAR SEAT BELT BUCKLE SWITCH PASSENGER-SIDE A-PILLAR FUSE BOX PNK/RED WIRE REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT RED/VIO WIRE RED/WHT WIRE RIGHT FRONT BUMPER PEDESTRIAN PROTECTION SENSOR RIGHT FRONTAL ACCELERATION SENSOR RIGHT REAR DOOR PRESSURE SENSOR RIGHT REAR EMERGENCY TENSIONING RETRACTOR SQUIB RIGHT REAR SEAT BELT BUCKLE SWITCH RIGHT SIDEBAG SENSOR SEDAN SIG SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT (NEAR SHIFT LEVER) VIO/GRN WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/YEL WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM DRIVER AIR BAG SQUIB 1 DRIVER AIR BAG SQUIB 2 DRIVER KNEEBAG SQUIB FRONT PASSENGER AIR BAG BLEED VALVE SQUIB FRONT PASSENGER AIR BAG SQUIB 1 FRONT PASSENGER AIR BAG SQUIB 2 FRONT PASSENGER KNEEBAG SQUIB GRN WIRE GRN/WHT WIRE GRN/YEL (OR WHT/GRN) WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/YEL WIRE INERTING SYSTEM SQUIB LEFT FRONT DOOR PRESSURE SENSOR LEFT REAR DOOR PRESSURE SENSOR NCA WIRE PNK WIRE PNK/RED WIRE PYFSE (-) RED/WHT WIRE RIGHT REAR CUSHIONBAG SQUIB SEDAN SEDAN, COUPE STEERING COLUMN MODULE CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT VIO WIRE VIO/BLU WIRE VIO/GRN WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/GRN WIRE YEL/WHT WIRE