Mercedes-Benz S-class W221 facelift (2009-2013) comand control unit Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 AUDIO LEFT AUDIO RIGHT 1 2 3 4 5 6 7 8 9 10 11 CAN F H 1 2 3 4 LVDS RX- GROUND LVDS RX+ GROUND 1 2 MOST IN MOST OUT 5 3 (NOT USED) 6 4 2 PNK WIRE ANTENNA SPLITTER AUDIO IN R AUDIO OUT L AUDIO OUT L AUDIO OUT L AUDIO OUT R AUDIO-IN L BACKUP CAMERA VOLTAGE SUPPLY MODULE (IF EQUIPPED) (LEFT SIDE OF TRUNK) BLK WIRE BLK/WHT WIRE BLU WIRE BLUETOOTH ANTENNA BRN WIRE CAN A H CAN A L COMAND CONTROL UNIT COMPUTER DATA LINES SYSTEM FUSE 122, RELAY MODULE (CENTER TRUNK) FUSE 99 GRN WIRE GROUND GROUND SHIELD 12 13 14 HANDS-FREE SYSTEM MICROPHONE GROUP (PART OF INTERIOR REARVIEW MIRROR) HEADPHONES CONNECTING POINT HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT INSTRUMENT PANEL FUSE BOX (UNDER LEFT SIDE DASH COVER) MC 1 MC 2 PNK WIRE MC GND MC SHIELD MEDIA INTERFACE CONNECTOR MOST DATA BUS CIRCUIT NCA WIRE ORG/ WIRE PNK WIRE REAR SAM CONTROL MODULE W/ FUSE/ RED/BLU WIRE SHIELD SHIELD BLUETOOTH SHIELD GPS USB (UNIVERSAL SERIAL BUS) CONNECTOR W/O MEDIA INTERFACE WAKE UP 30 CAN F L WALKMAN SEPARATION POINT WHT WIRE WHT/YEL WIRE YEL WIRE YEL/WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 AUDIO LEFT AUDIO RIGHT 1 2 3 4 5 6 7 8 9 10 11 CAN F H 1 2 3 4 LVDS RX- GROUND LVDS RX+ GROUND 1 2 MOST IN MOST OUT 5 3 (NOT USED) 6 4 2 PNK WIRE ANTENNA SPLITTER AUDIO IN R AUDIO OUT L AUDIO OUT L AUDIO OUT L AUDIO OUT R AUDIO-IN L BACKUP CAMERA VOLTAGE SUPPLY MODULE (IF EQUIPPED) (LEFT SIDE OF TRUNK) BLK WIRE BLK/WHT WIRE BLU WIRE BLUETOOTH ANTENNA BRN WIRE CAN A H CAN A L COMAND CONTROL UNIT COMPUTER DATA LINES SYSTEM FUSE 122, RELAY MODULE (CENTER TRUNK) FUSE 99 GRN WIRE GROUND GROUND SHIELD 12 13 14 HANDS-FREE SYSTEM MICROPHONE GROUP (PART OF INTERIOR REARVIEW MIRROR) HEADPHONES CONNECTING POINT HOT AT ALL TIMES HOT W/ QUIESCENT CURRENT CUTOUT RELAY ENERGIZED LEFT INSTRUMENT PANEL FUSE BOX (UNDER LEFT SIDE DASH COVER) MC 1 MC 2 PNK WIRE MC GND MC SHIELD MEDIA INTERFACE CONNECTOR MOST DATA BUS CIRCUIT NCA WIRE ORG/ WIRE PNK WIRE REAR SAM CONTROL MODULE W/ FUSE/ RED/BLU WIRE SHIELD SHIELD BLUETOOTH SHIELD GPS USB (UNIVERSAL SERIAL BUS) CONNECTOR W/O MEDIA INTERFACE WAKE UP 30 CAN F L WALKMAN SEPARATION POINT WHT WIRE WHT/YEL WIRE YEL WIRE YEL/WHT 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 FUSE 127 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 HOT AT ALL TIMES LEFT FRONT SEAT CONTROL MODULE LEFT REAR FOOTWELL LEFT REAR FOOTWELL LAMP LUMBAR PUMP (LEFT SIDE OF TRUNK) NCA WIRE ORG/ WIRE ORG/WHT WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) RED WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE SEATS SEATS SYSTEM SYSTEM SEATS SYSTEM VIO/GRY WIRE W/ LUMBAR SUPPORT SEAT

ANT ANTENNA SPLITTER BLK WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE COMAND CONTROL UNIT COMPUTER DATA LINES SYSTEM EC LED TDC LED IC LED ECS ICS ICS CRASH EMERGENCY CALL SYSTEM ANTENNA SPLITTER (LEFT SIDE OF TRUNK) EMERGENCY CALL SYSTEM CONTROL UNIT (LEFT FRONT OF TRUNK) EMERGENCY CALL SYSTEM LEFT BACKUP ANTENNA (LEFT OF TRUNK) EMERGENCY CALL SYSTEM RIGHT BACKUP ANTENNA (RIGHT OF TRUNK) FUSE 138 W/ FUSE, RELAY MODULE (CENTER TRUNK) GPS ROOF ANTENNA TELEPHONE, GPS ROOF ANTENNA (GPS ROOF ANTENNA: REAR GRN WIRE GRN/RED WIRE GRY WIRE GRY/RED WIRE GRY/WHT WIRE HOT W/ CIRCUIT LSP + CAN-D H CAN-D L MIC SHIELD MIC MUTE NCA WIRE ORG/ WIRE REAR SAM CONTROL MODULE RED WIRE SOUND SYSTEMS TELEPHONE ANTENNA VIO WIRE WHT WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/PNK WIRE YEL/RED WIRE

1 2 3 CAN-C L CAN-C H 31 1 2 3 CAN-I L CAN-I H 31 1 2 CAN-C L CAN-C H 1 2 CAN-F L CAN-F H 1 2 CAN-H L CAN-H H 1 2 CAN-I L CAN-I H 10 20 CAN-I L CAN-I H 10 4 CAN-I L CAN-I H 11 1 CAN-F L CAN-F H 11 10 CAN-H L CAN-H H 12 11 CAN-F L CAN-F H 12 13 CAN-F L CAN-F H 19 18 CAN-H L CAN-H H 2 1 CAN-C L CAN-C H 2 3 CAN-H L CAN-H H 4 3 CA CAN-I L CAN-I H 55 42 53 40 CAN-C L CAN-C H CAN-I L CAN-I H 6 3 CAN-H L CAN-H H 9 8 CA CAN-I L CAN-I H BATTERY MANAGEMENT SYSTEM CONTROL UNIT BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CENTRAL CAN VOLTAGE DISTRIBUTOR CONNECTOR CENTRAL GATEWAY CONTROL MODULE (LEFT FRONT COMAND CONTROL UNIT DC/DC CONVERTER CONTROL MODULE (RIGHT FRONT DIRECT SELECT INTELLIGENT SERVO MODULE FOR (IF EQUIPPED) (TRANSMISSION HOUSING) DRIVETRAIN CAN VOLTAGE DISTRIBUTOR CONNECTOR DTR CONTROL UNIT (IF EQUIPPED) (UNDER PLATE IN RIGHT ELECTRIC CONTROL UNIT (VGS) ELECTRIC REFRIGERANT COMPRESSOR ENGINE COMPT) ESP CONTROL MODULE (5.5L) REGENERATIVE BRAKING HYBRID CAN VOLTAGE DISTRIBUTOR CONNECTOR (3.5L HYBRID) INSTRUMENT CLUSTER ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF POWER ELECTRONICS CONTROL UNIT (RIGHT SIDE UNDERCARRIAGE) RADAR SENSOR SYSTEM CONTROL UNIT (W/ DISTANCE PLUS) SYSTEM CONTROL UNIT (3.5L HYBRID) (RIGHT FRONT ENGINE COMPT) UPPER FOOTWELL) VEHICLE DYNAMICS CAN VOLTAGE DISTRIBUTOR CONNECTOR VIO WIRE VIO/WHT WIRE WHEELHOUSE) YAW RATE, LATERAL, LONGITUDINAL ACCELERATION SENSOR YEL WIRE YEL/WHT WIRE

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 CB CAN-B L CAN-B H 12 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 9 10 CAN-B L CAN-B H 9 18 CAN-B L CAN-B H BLK WIRE BLK/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE COMAND CONTROL UNIT FRONT CENTRAL OPERATING UNIT GRN WIRE PNK/BRN WIRE PTS CONTROL MODULE (RIGHT SIDE TRUNK) RCP (HBF) CONTROL MODULE REAR AC CONTROL MODULE (IF EQUIPPED) REAR SEATS CONTROL MODULE (RIGHT SIDE OF TRUNK) 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) TELEMATICS CAN VOLTAGE DISTRIBUTOR CONNECTOR VOLTAGE DISTRIBUTOR CONNECTOR WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT (RIGHT FRONT SEAT) YEL WIRE

1 2 IN OUT 1 2 MOST 5 IN OUT 1 MOST IN 2 1 OUT IN AUDIO TUNER CONTROL UNIT COMAND CONTROL UNIT HIGH DEFINITION TUNER CONTROL UNIT (IF EQUIPPED) MEDIA INTERFACE CONTROL UNIT (IF EQUIPPED) MOST ORG/ WIRE OUT WAKE UP CA WAKE-UP

4 2 3 1 CAN-B H CAN-B L BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CAN A H CAN A L CAN B H CAN B L CAN-B H CAN-B L 30 31 CAN-F H CAN-F L CENTRAL GATEWAY CONTROL MODULE (LEFT FRONT UPPER FOOTWELL) COMAND CONTROL UNIT COMAND DISPLAY COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM W/ MULTICONTOUR SEAT, DYNAMIC SEAT DYNAMIC FRONT PASSENGER SEAT MASSAGE FUNCTION MAIN VALVE FRONT CENTRAL OPERATING UNIT FUSE 127 GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES LEFT REAR FOOTWELL LUMBAR PUMP (LEFT SIDE OF TRUNK) NCA WIRE ORG/ WIRE ORG/WHT WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DYNAMIC SEAT CONTROL MODULE RIGHT FRONT SEAT MASSAGE FUNCTION ACTUATOR MOTOR W/ LUMBAR SUPPORT SEAT WHT WIRE YEL WIRE YEL/WHT WIRE

ADDITIONAL BATTERY AIR CONDITIONING ELECTRONIC BLOWER CONTROLLER AUDIO TUNER CONTROL UNIT BACKUP BATTERY FUSE BRN WIRE CHASSIS CIRCUIT 87 RELAY COMAND CONTROL UNIT ELECTRIC REFRIGERANT COMPRESSOR ELECTROHYDRAULIC (W/ MILD HYBRID DRIVE) ELECTRIC TO DC/DC CONVERTER CONTROL MODULE (DIAGRAM 1 OF 4) CONTROL UNIT (VGS) ESP MEDIA CONTROL INTERFACE MODULE CONTROL UNIT FROM FUSE 29 (DIAGRAM FUSE 127 FUSE 121 1 FO 4) FROM INTERIOR PREFUSE BOX (DIAGRAM 1 OF 4) FUSE 1 FUSE 101 FUSE 103 FUSE 108 FUSE 104 FUSE 107 FUSE 98 FUSE 109 FUSE FUSE 111 FUSE 112 FUSE 113 FUSE 120 FUSE 122 FUSE 123 FUSE 124 FUSE 129 FUSE 128 FUSE 126 FUSE 125 FUSE 20 FUSE 46 FUSE 53 FUSE 48 FUSE 47 FUSE 51 FUSE 49 FUSE 50 FUSE 28 FUSE 31 FUSE 33 FUSE 34 FUSE 32 FUSE 35 FUSE 60 FUSE 92 FUSE 102 FUSE 97 FUSE 96 FUSE 93 FUSE 105 FUSE FUSE 95 FUSE 106 FUSE 110 FUSE 99 HIGH DEFINITION TUNER CONTROL UNIT LEFT REAR MULTICONTOUR BACKREST CONTROL MODULE MEDIA INTERFACE CONTROL UNIT OVERHEAD CONTROL PANEL CONTROL MODULE RCP (HBF) CONTROL MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SPLITVIEW DISPLAY (IF EQUIPPED) COMAND DISPLAY (W/ AUDIO/ COMAND DISPLAY) TO DC/DC CONVERTER CONTROL MODULE (DIAGRAM 1 OF 4) TO EIS (EZS) CONTROL TO FUSE 119 (DIAGRAM 3 FO 4) UNIT (DIAGRAM 4 OF 4) VOICE CONTROL SYSTEM (VCS (SBS)) CONTROL UNIT W/ FUSE, RELAY MODULE W/ REAR A/C

BACKUP CAMERA (LEFT CENTER OF TRUNK LID) BACKUP CAMERA VOLTAGE SUPPLY MODULE (LEFT SIDE OF TRUNK) BLK WIRE BRN WIRE COMAND CONTROL UNIT CV GND GRY/BLK WIRE NCA WIRE RED WIRE YEL WIRE