Mercedes-Benz S-class W222/C217/A217 facelift (2017-2020) computer data lines system 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

ALARM SIREN ATA (EDW)/TOWING SENSOR/ INTERIOR MOTION SENSOR CONTROL UNIT BRN WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FUSE 318 FUSE 6 HOT AT ALL TIMES LEFT FRONT DOOR INTERIOR PROTECTION SENSOR LEFT REAR INTERIOR PROTECTION SENSOR MULTIPLE FUSE 3 OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER-SIDE A-PILLAR FUSE BOX PNK/BLK WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT FRONT DOOR INTERIOR PROTECTION SENSOR RIGHT REAR INTERIOR PROTECTION SENSOR

3.0L TURBO 4.0L TURBO 6 7 TMP VD V A M K KK AC HOUSING, BLK WIRE BLOWER MOTOR BLOWER REGULATOR BLU WIRE BLU/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/RED WIRE CAN B H CAN B L 20 21 SNS VL CLIMATE CONTROL UNIT (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DRIVER SIDE AIR VENT IONIZER DRIVER-SIDE FUSE, RELAY MODULE FMTDE L FMTDE R FUSE 207 FUSE 27 FUSE 5 FUSE 6 GRN WIRE GRN/BLU WIRE GRN/PNK WIRE GRN/RED WIRE GRN/VIO WIRE GRY WIRE HOT AT ALL TIMES HSK K MTDE VL MTDE VR MULTI FUSE 2 MULTI FUSE 3 NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PERFUME ATOMIZER GENERATOR PNK DRK KLTM WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE REAR AIR CONDITIONING OPERATING UNIT RED WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE REFRIGERANT COMPRESSOR REFRIGERANT COMPRESSOR W/ MAGNETIC CLUTCH SIG SIREN/ DOWN FUSE 209 SNS VR STDE VL 11 12 STDE VR TMP FR L TMP FR R TMP STD L TMP STD R USED) VEHICLE INTERIOR PREFUSE BOX VIO WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/WHT WIRE W/ AIR BALANCE PACKAGE W/ MAGNETIC CLUTCH W/ REFRIGERANT R744 W/O REFRIGERANT R744 4.0L TURBO W/O MAGNETIC CLUTCH WHT WIRE WHT/BLU WIRE WINDSHIELD HEATER CONTROL UNIT WP KML 7 8 YEL WIRE YEL/GRN WIRE

BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM COOLANT CIRCULATION PUMP COUPE COUPE, SEDAN FUSE 313 GRN WIRE GRN/RED WIRE GRN/VIO WIRE HOT AT ALL TIMES INTERIOR TEMPERATURE SENSOR W/ INTEGRATED FAN MULTI-FUNCTION SENSOR ORG/BLK WIRE ORG/WHT WIRE OVERHEAD CONTROL PANEL CONTROL UNIT PASSENGER-SIDE A-PILLAR FUSE BOX REAR SAM CONTROL UNIT REAR SUN SENSOR RED WIRE RED/VIO WIRE RED/WHT WIRE SEDAN SIG VIO/BRN WIRE YEL WIRE

3.0L TURBO 4.0L TURBO A T KWTHS ACTUATOR MOTOR ATR BLK/RED WIRE BLK/YEL WIRE BLU/BLK WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN B H COC CAN B L CAN C H CAN C L CAN HMI H CAN HMI L CAN PER H CAN PER L COMPUTER DATA LINES SYSTEM COOLANT LEVEL SWITCH COOLANT TEMPERATURE SENSOR DRIVER-SIDE FUSE, RELAY MODULE DRIVETRAIN CONTROL UNIT E A TMOT ENGINE COMPARTMENT PREFUSE BOX ENGINE CONTROLS SYSTEM FAN MOTOR FRONT SAM CONTROL UNIT (LEFT KICK PANEL) FUSE 200 FUSE 4 FUSE 405 FUSE 458 GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER KMSD ME-SFI (ME) CONTROL UNIT OUTSIDE TEMPERATURE SENSOR REAR BACKREST REFRIGERATOR BOX REAR CUP HOLDER (SEDAN) REAR FUSE, RELAY MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE ROW CUP HOLDER, POWER OUTLET RELAY ENERGIZED ROW/TRUNK REFRIGERATOR BOX, POWER OUTLET RELAY ENERGIZED SEDAN VIO/ORG WIRE WHT/BRN WIRE YEL WIRE YEL/WHT WIRE

BRN WIRE CAN HMI H CAN HMI L COMPUTER DATA LINES SYSTEM ELECTRIC POWER STEERING ACTUATOR MOTOR ELECTRIC POWER STEERING TORQUE SENSOR ELECTRICAL POWER STEERING CONTROL UNIT ELECTRONIC IGNITION SWITCH CONTROL UNIT ENGINE COMPARTMENT PREFUSE BOX FLEX-E BM FLEX-E BP FR BM FR BP FUSE 3 GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER PAS PNK WIRE RED WIRE 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

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/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