Mercedes-Benz S-class W221 (2005-2009) rear seats control module Wiring diagrams

1 2 3 CAN-A L CAN-A H 31 1 2 3 CAN-B L CAN-B H 31 1 2 CAN B L CAN B H 1 2 CAN-A L CAN-A H 1 3 CAN-B L CAN-B H 13 3 CAN-A L CAN-A H 15 14 CAN-B L CAN-B H 3 4 CAN-A L CAN-A H 3 6 CAN-A L CAN-A H 4 3 CAN B L CAN B H 4 8 CAN-A L CAN-A H 5 6 CAN-B L CAN-B H 7 9 CAN-B L CAN-B H BLK WIRE BLK/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE COMAND CONTROL UNIT COMAND DISPLAY FRONT CENTRAL OPERATING UNIT GRN WIRE OVERHEAD CONTROL PANEL CONTROL MODULE (CENTER FRONT OF ROOF) PTS CONTROL MODULE (IF EQUIPPED) RCP (HBF) CONTROL MODULE REAR AC CONTROL MODULE (IF EQUIPPED) REAR SEATS CONTROL MODULE RIGHT FRONT DOOR CONTROL MODULE (IN RIGHT FRONT DOOR) RIGHT FRONT SEAT CONTROL MODULE RIGHT INTERIOR CAN/FFS (RBA) RIGHT REAR DOOR CONTROL MODULE (IN RIGHT REAR DOOR) SPECIAL VEHICLE MULTIFUNCTION CONTROL MODULE (SVMCM (MSS)) (IF EQUIPPED) TELEMATICS CAN VOLTAGE DISTRIBUTOR CONNECTOR TLC (HDS) CONTROL MODULE (W/ REMOTE TRUNK LOCKING) TPM CONTROL MODULE (IF EQUIPPED) VOLTAGE DISTRIBUTOR CONNECTOR WSS CONTROL UNIT (WEIGHT SENSING SYSTEM) YEL WIRE

1 2 3 4 5 6 30 31 CAN-B H CAN-B L 1 2 3 4 5 6 7 8 MOT-L MOT-NV MOT-NV MOT-NV MOT-LV MOT-L MOT-NV MOT-LV 1 2 CAN B L CAN B H 7 8 9 10 11 12 SIBL SIBL (+) (+) 9 10 11 12 13 MOT-NV MOT-NV MOT-LV MOT-NV MOT-LV BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/PNK WIRE BLU/RED WIRE BLU/VIO WIRE BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM FLAT WIRE FLAT WIRE FLAT WIRE 1 2 3 UB 31 DATA FUSE 143 FUSE 144 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/PNK WIRE GRN/YEL WIRE GRY/PNK WIRE HOT AT ALL TIMES HS L HS NV+ HS NV+ HS LV+ HS LV- HS LV- HS NV+ HS NV+ HS NV+ HS L+ HS NV- HS NV- LEFT REAR DOOR CONTROL MODULE LEFT REAR HEAD RESTRAINT INCLINATION ADJUSTMENT MOTOR LEFT REAR SEAT BELT COMFORT FEATURE SOLENOID (UNDER LEFT REAR WINDOW SHELF) LEFT REAR SEAT CUSHION INCLINATION ADJUSTMENT MOTOR LEFT REAR SEAT OPERATION SWITCH GROUP MEMORY 1, 2, 3 SWITCH 1 2 3 MEMORY STORE BUTTON SWITCH MOT L-(+) PNK/BLK WIRE PNK/BRN WIRE PNK/GRN WIRE PNK/RED WIRE PNK/VIO WIRE PNK/WHT WIRE PNK/YEL WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE REAR SEATS CONTROL MODULE RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RIGHT REAR BACKREST ANGLE ADJUSTMENT MOTOR RIGHT REAR DOOR CONTROL MODULE (IN RIGHT REAR DOOR) RIGHT REAR SEAT BELT COMFORT FEATURE SOLENOID RIGHT REAR SEAT OPERATION SWITCH GROUP RIGHT SEAT FORE/AFT ADJUSTMENT MOTOR (UNDER RIGHT REAR SEAT) SEATS SYSTEM VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE

BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE CAN B L CAN B H COMPUTER DATA LINES SYSTEM FUSE 102 FUSE 92 GK R GK L HOT AT ALL TIMES LEFT FRONT SEAT BELT COMFORT FEATURE SOLENOID (AT BASE OF LEFT "B" PILLAR) LEFT FRONT SEAT CONTROL MODULE LEFT INSTRUMENT PANEL FUSE BOX LEFT REAR SEAT BELT COMFORT FEATURE SOLENOID NCA WIRE ORG/ WIRE REAR SAM CONTROL MODULE REAR SEATS CONTROL MODULE RED WIRE RED/WHT WIRE RIGHT FRONT SEAT BELT COMFORT FEATURE SOLENOID RIGHT FRONT SEAT CONTROL MODULE RIGHT REAR SEAT BELT COMFORT FEATURE SOLENOID WHT WIRE

1 2 3 4 7 8 30 31 CAN-B H CAN-B L SIBL SIBL 1 2 3 FLAT WIRE FLAT WIRE FLAT WIRE UB 31 DATA 1 2 CAN B L CAN B H 9 10 (+) (+) BLK WIRE BLU WIRE BLU/RED WIRE BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM FUSE 143 MODULE W/ FUSE, RELAY MODULE GRN/BLK WIRE GRY/PNK WIRE HEATED SEAT SWITCH HOT AT ALL TIMES LEFT REAR BACKREST HEATED CUSHION LEFT REAR DOOR CONTROL MODULE (IN LEFT REAR DOOR) LEFT REAR SEAT BACKREST VENTILATION MOTOR GROUP LEFT REAR SEAT CUSHION VENTILATION MOTOR GROUP LEFT REAR SEAT HEATED CUSHION LEFT REAR SEAT OPERATION SWITCH GROUP LEFT REAR SEAT VENTILATION BLOWER REGULATOR PNK/BRN WIRE REAR SAM CONTROL REAR SEATS CONTROL MODULE RED WIRE RED/WHT WIRE RIGHT REAR BACKREST HEATED CUSHION RIGHT REAR DOOR CONTROL MODULE (IN RIGHT REAR DOOR) RIGHT REAR SEAT BACKREST VENTILATION MOTOR GROUP RIGHT REAR SEAT CUSHION VENTILATION MOTOR GROUP RIGHT REAR SEAT HEATED CUSHION RIGHT REAR SEAT OPERATION SWITCH GROUP RIGHT REAR SEAT VENTILATION BLOWER REGULATOR SEAT VENTILATION SWITCH YEL WIRE YEL/RED WIRE