Mercedes-Benz S-class W222/C217/A217 facelift (2017-2020) rear fuse, relay module 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

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

BLK 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 SEAT HEATER CONTROL UNIT FRONT PASSENGER SEAT CONTROL UNIT FRONT PASSENGER SEAT HEATER CONTROL UNIT FUSE 306 FUSE 453 HEATER PAD TEMPERATURE SENSOR LEFT FRONT BACKREST HEATED CUSHION HEATER PAD TEMPERATURE SENSOR LEFT FRONT SEAT SITTING SURFACE HEATED CUSHION HEATER PAD TEMPERATURE SENSOR RIGHT FRONT BACKREST HEATED CUSHION HEATER PAD TEMPERATURE SENSOR RIGHT FRONT SEAT SITTING SURFACE HEATED CUSHION HOT AT ALL TIMES LEFT FRONT DOOR CONTROL UNIT LEFT FRONT SEAT ADJUSTMENT SWITCH GROUP LEFT FRONT SEAT HEATER SWITCH NCA WIRE PASSENGER-SIDE A-PILLAR FUSE BOX PNK/YEL WIRE REAR FUSE, RELAY MODULE RED WIRE RED/WHT WIRE RIGHT FRONT DOOR CONTROL UNIT RIGHT FRONT SEAT ADJUSTMENT SWITCH GROUP RIGHT FRONT SEAT HEATER SWITCH TS HK SF BF TS HK SF F TS HK SL BF TS HK SL F UB (+) VHK VIO WIRE WHT WIRE YEL WIRE YEL/BRN WIRE

BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FUSE 4 FUSE 407 FUSE 5 HOT AT ALL TIMES LEFT FRONT MULTICONTOUR SEAT CONTROL UNIT LEFT FRONT SEAT MASSAGE FUNCTION CONTROL UNIT MULTICONTOUR SEAT PNEUMATIC PUMP MULTIPLE FUSE 1 PASSENGER-SIDE A-PILLAR FUSE BOX REAR FUSE, RELAY MODULE RED/GRY WIRE RED/WHT WIRE RIGHT FRONT MULTICONTOUR SEAT CONTROL UNIT RIGHT FRONT SEAT MASSAGE FUNCTION CONTROL UNIT SEDAN, COUPE YEL WIRE

BLK/GRN WIRE BLU/PNK WIRE BLU/VIO WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE CAN B H CAN B L CENTER REAR PASSENGER COMPARTMENT HEAD RESTRAINT RELEASE ACTUATOR COMPUTER DATA LINES SYSTEM COUPE COUPE CONVERTIBLE FUSE 301 FUSE 477 GRN/BRN WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/PNK WIRE GRY/VIO WIRE HOT AT ALL TIMES KS A H L + KS A H R + KS A T L + KS A T R + LEFT REAR PASSENGER COMPARTMENT HEAD RESTRAINT RELEASE ACTUATOR LEFT REAR SEAT HEAD RESTRAINT HEIGHT ADJUSTMENT HALL SENSOR PASSENGER-SIDE A-PILLAR FUSE BOX REAR CONTROL UNIT (LEFT FRONT OF LUGGAGE COMPT) REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT (BEHIND RIGHT REAR SEAT) RED/BRN WIRE RED/WHT WIRE RIGHT REAR PASSENGER COMPARTMENT HEAD RESTRAINT RELEASE ACTUATOR RIGHT REAR SEAT HEAD RESTRAINT HEIGHT ADJUSTMENT HALL SENSOR SEDAN SIG

BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FUSE 429 FUSE 450 HK SF FR HK SF SL HK SL FL HK SL FR HOT AT ALL TIMES LEFT REAR BACKREST HEATED CUSHION LEFT REAR BACKREST SIDE BOLSTER HEATER PAD LEFT REAR DOOR CONTROL UNIT LEFT REAR SEAT ADJUSTMENT SWITCH GROUP LEFT REAR SEAT BACKREST VENTILATION MOTOR LEFT REAR SEAT CONTROL UNIT LEFT REAR SEAT CUSHION SIDE BOLSTER HEATER PAD LEFT REAR SEAT CUSHION VENTILATION MOTOR LEFT REAR SEAT HEATER SWITCH LEFT REAR SEAT SITTING SURFACE HEATED CUSHION LEFT REAR SEAT VENTILATION SWITCH NCA WIRE PNK/BRN WIRE PNK/GRY WIRE REAR FUSE, RELAY MODULE RED WIRE RED/WHT WIRE RIGHT REAR BACKREST HEATER PAD RIGHT REAR BACKREST SIDE BOLSTER HEATER PAD RIGHT REAR DOOR CONTROL UNIT RIGHT REAR SEAT ADJUSTMENT SWITCH GROUP RIGHT REAR SEAT BACKREST VENTILATION MOTOR RIGHT REAR SEAT CONTROL UNIT RIGHT REAR SEAT CUSHION SIDE BOLSTER HEATER PAD RIGHT REAR SEAT CUSHION VENTILATION MOTOR RIGHT REAR SEAT HEATER SWITCH RIGHT REAR SEAT SITTING SURFACE HEATED CUSHION RIGHT REAR SEAT VENTILATION SWITCH SB SK FL SB SL FL SB SL FR UB (+) VIO WIRE W/O VENTILATION WHT WIRE

AIRSCARF CONTROL UNIT ARMREST HEATER CONTROL UNIT BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FUSE 452 HOT AT ALL TIMES LEFT REAR BACKREST HEATED CUSHION LEFT REAR DOOR CONTROL UNIT LEFT REAR HEATED SEAT SWITCH LEFT REAR SEAT ADJUSTMENT SWITCH GROUP LEFT REAR SEAT HEATER SWITCH LEFT REAR SEAT SITTING SURFACE HEATED CUSHION ORG/ WIRE ORG/WHT WIRE REAR CONTROL UNIT (COUPE, CONVERTIBLE) (LEFT FRONT OF LUGGAGE COMPT) REAR FUSE, RELAY MODULE REAR SAM CONTROL UNIT REAR SEAT HEATERS CONTROL UNIT RED WIRE RED/GRN WIRE RED/WHT WIRE RIGHT REAR BACKREST HEATER PAD RIGHT REAR DOOR CONTROL UNIT RIGHT REAR HEATED SEAT SWITCH RIGHT REAR SEAT ADJUSTMENT SWITCH GROUP RIGHT REAR SEAT HEATER SWITCH RIGHT REAR SEAT SITTING SURFACE HEATED CUSHION SEDAN SEDAN, COUPE UB (+) VIO WIRE VIO/WHT WIRE WHT WIRE YEL WIRE YEL/WHT WIRE

BLK WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FUSE 451 FUSE 452 HEATER PAD TEMPERATURE SENSOR LEFT REAR BACKREST HEATED CUSHION HEATER PAD TEMPERATURE SENSOR LEFT REAR SEAT SITTING SURFACE HEATED CUSHION HEATER PAD TEMPERATURE SENSOR RIGHT REAR BACKREST HEATER PAD HEATER PAD TEMPERATURE SENSOR RIGHT REAR SEAT SITTING SURFACE HEATED CUSHION HOT AT ALL TIMES LEFT REAR DOOR CONTROL UNIT LEFT REAR SEAT ADJUSTMENT SWITCH GROUP LEFT REAR SEAT CONTROL UNIT LEFT REAR SEAT HEATER CONTROL UNIT LEFT REAR SEAT HEATER SWITCH NCA WIRE PNK/YEL WIRE REAR FUSE, RELAY MODULE RED WIRE RED/WHT WIRE RIGHT REAR DOOR CONTROL UNIT RIGHT REAR SEAT ADJUSTMENT SWITCH GROUP RIGHT REAR SEAT CONTROL UNIT RIGHT REAR SEAT HEATER CONTROL UNIT RIGHT REAR SEAT HEATER SWITCH TS HK SF FL TS HK SF FR TS HK SL FL TS HK SL FR UB (+) VHK VIO WIRE WHT WIRE YEL WIRE YEL/BRN WIRE

BRN WIRE BRN/RED WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FUSE 407 FUSE 471 FUSE 472 GRY WIRE HOT AT ALL TIMES LEFT REAR MULTICONTOUR SEAT CONTROL UNIT LEFT REAR SEAT MASSAGE FUNCTION CONTROL UNIT MULTICONTOUR SEAT PNEUMATIC PUMP REAR FUSE, RELAY MODULE RED/BLK WIRE RED/GRY WIRE RED/WHT WIRE RIGHT REAR MULTICONTOUR SEAT CONTROL UNIT RIGHT REAR SEAT MASSAGE FUNCTION CONTROL UNIT YEL 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