Mercedes-Benz S-class W221 (2005-2009) left front seat control module Wiring diagrams

BLK WIRE BLU WIRE BRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DRIVER LUMBAR SUPPORT REGULATOR CONTROL UNIT (IF EQUIPPED) FUSE 92 PANEL FUSE BOX GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/RED WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE HOT AT ALL TIMES LEFT FRONT BACKREST ANGLE ADJUSTMENT MOTOR LEFT FRONT HEAD RESTRAINT MOTOR LEFT FRONT SEAT CONTROL MODULE LEFT FRONT SEAT CUSHION FORE/AFT MOTOR LEFT FRONT SEAT CUSHION INCLINATION MOTOR LEFT FRONT SEAT FORE/AFT ADJUSTMENT MOTOR LEFT FRONT SEAT HEIGHT ADJUSTMENT MOTOR LEFT INSTRUMENT ORG/ WIRE RED WIRE RED/BLU WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SEATS SYSTEM WHT WIRE YEL WIRE YEL/RED WIRE

4 2 3 1 CAN-B H CAN-B L BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CAN A H CAN A L CAN B H CAN B L COMAND CONTROL UNIT COMAND DISPLAY COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM W/ MULTICONTOUR SEAT, DYNAMIC SEAT EARLY PRODUCTION GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/RED WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE LATE PRODUCTION LEFT FRONT SEAT CONTROL MODULE LEFT REAR FOOTWELL LAMP LUMBAR PUMP (W/ LUMBAR SUPPORT) NCA WIRE ORG/ WIRE ORG/WHT WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE SEATS SEATS SYSTEM SYSTEM SEATS SYSTEM W/ LUMBAR SUPPORT

1 2 3 FLAT WIRE FLAT WIRE FLAT WIRE UB 31 DATA 1 2 7 9 30 31 CAN-B L CAN-B H 1 2 CAN B L CAN B H BLU WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM FUSE 102 FUSE 92 PANEL FUSE BOX GRN/RED WIRE GRN/WHT WIRE HEATED SEAT SWITCH HOT AT ALL TIMES LEFT FRONT BACKREST HEATED CUSHION LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) LEFT FRONT SEAT BACKREST VENTILATION LEFT FRONT SEAT CONTROL MODULE LEFT FRONT SEAT CUSHION VENTILATION LEFT FRONT SEAT HEATED CUSHION LEFT FRONT SEAT OPERATION SWITCH GROUP LEFT FRONT SEAT VENTILATION BLOWER REGULATOR (IF EQUIPPED) LEFT INSTRUMENT MOTOR GROUP MOTOR GROUP (IF EQUIPPED) RED WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RIGHT FRONT BACKREST HEATED CUSHION RIGHT FRONT DOOR CONTROL MODULE (IN RIGHT FRONT DOOR) RIGHT FRONT SEAT BACKREST VENTILATION MOTOR GROUP (IF EQUIPPED) RIGHT FRONT SEAT CONTROL MODULE RIGHT FRONT SEAT CUSHION VENTILATION MOTOR GROUP RIGHT FRONT SEAT HEATED CUSHION RIGHT FRONT SEAT OPERATION SWITCH GROUP RIGHT FRONT SEAT VENTILATION BLOWER REGULATOR (IF EQUIPPED) SEAT VENTILATION SWITCH YEL/RED WIRE

AT RIGHT REAR OF TRUNK) BLK WIRE BRN WIRE EARLY PRODUCTION ESP CONTROL MODULE LATE PRODUCTION LEFT FRONT SEAT CONTROL MODULE ON-BOARD ELECTRICAL SYSTEM BATTERY RADIO INTERFERENCE SUPPRESSION CAPACITOR 1, CYLINDER IGNITION COILS 5-8 STARTER BATTERY

1 2 CAN B L CAN B H 14 13 CAN-B L CAN-B H 15 14 CAN-B L CAN-B H 16 15 CAN-B L CAN-B H 2 4 CAN-B L CAN-B H 26 25 CAN-B L CAN-B H 3 4 CAN-B L CAN-B H 6 12 CAN-B L CAN-B H 7 9 CAN-B L CAN-B H 9 25 CAN-B L CAN-B H AAC (KLA) CONTROL UNIT BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE CENTRAL GATEWAY CONTROL MODULE DS (FDS)) EIS (EZS) CONTROL UNIT FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE INTERIOR CAN/COCKPIT VOLTAGE DISTRIBUTOR CONNECTOR KEYLESS GO CONTROL UNIT (IF EQUIPPED) LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) LEFT FRONT SEAT CONTROL MODULE LEFT INTERIOR CAN/FFS (RBA) VOLTAGE DISTRIBUTOR CONNECTOR LEFT REAR DOOR CONTROL MODULE (IN LEFT REAR DOOR) LEFT REAR MULTICONTOUR BACKREST CONTROL MODULE PNEUMATIC PUMP FOR DYNAMIC SEAT CONTROL (W/ DYNAMIC SEAT REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE REVERSE CAMERA CONTROL MODULE (IF EQUIPPED) RIGHT REAR MULTICONTOUR BACKREST CONTROL MODULE UPPER CONTROL PANEL CONTROL MODULE

1 2 3 4 CAN-B L CAN-B H 31 30 1 2 4 3 CAN-B L CAN-B H 30 31 57 L 57 R 9 7 CAN-B H CAN-B L BRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE CAN B L CAN B H COMPUTER DATA LINES SYSTEM EARLY PRODUCTION EARLY PRODUCTION LATE PRODUCTION FRONT CIGAR LIGHTER FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE GRY/BLU WIRE GRY/YEL WIRE LATE PRODUCTION LEFT FRONT HEADLAMP UNIT LEFT FRONT SEAT CONTROL MODULE LEFT REAR DOOR CONTROL MODULE (IN LEFT REAR DOOR) LEFT REAR DOOR ENTRANCE, EXIT LAMP LEFT REAR DOOR WARNING LAMP LEFT REAR FOOTWELL LAMP LEFT REAR INSIDE DOOR HANDLE ILLUMINATION NCA WIRE REAR CIGAR LIGHTER RED WIRE RED/WHT WIRE RIGHT FRONT HEADLAMP UNIT RIGHT FRONT SEAT CONTROL MODULE RIGHT REAR DOOR CONTROL MODULE (IN RIGHT REAR DOOR) RIGHT REAR DOOR ENTRANCE, EXIT LAMP RIGHT REAR DOOR WARNING LAMP RIGHT REAR FOOTWELL LAMP RIGHT REAR INSIDE DOOR HANDLE ILLUMINATION STANDING/ PARKING LAMP STOWAGE COMPARTMENT ILLUMINATION VIO/GRY WIRE YEL/GRN 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