Mercedes-Benz S-class W221 facelift (2009-2013) brn/gry Wiring diagrams

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

3 2 1 4 31 CAN-B H CAN-B L 30 3 4 DFK 31 5 4 2 SVS-MOT SVS-MOT (-) 6 5 4 FLAT WIRE FLAT WIRE FLAT WIRE DATA UB 31 9 7 CAN-B H CAN-B L BLK WIRE BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DASH COVER) DRIVER POWER WINDOW OUTSIDE MIRROR, TRUNK LID SWITCH GROUP FLAT WIRE FUSE FUSE 81 GRN WIRE GRY WIRE HOT AT ALL TIMES LEFT FRONT LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) LEFT FRONT DOOR DOOR TRIM STRIP INSIDE ILLUMINATION HANDLE LAMP 1 ILLUMINATION LEFT FRONT DOOR ENTRANCE/EXIT LAMP LEFT FRONT DOOR LOCK UNIT LEFT FRONT DOOR TRIM STRIP ILLUMINATION LAMP 2 LEFT FRONT DOOR WARNING LAMP LEFT FRONT DRIVE LOCK PAWL SWITCH LEFT FRONT POWER CLOSING MOTOR LEFT FRONT ROTARY TUMBLER SWITCH LEFT FRONT SAFETY LIMIT SWITCH LEFT FRONT SEAT CONTROL MODULE LEFT REAR FOOTWELL LAMP RED WIRE RIGHT INSTRUMENT PANEL FUSE BOX (UNDER RIGHT SIDE TRUNK LID OPEN/CLOSE SWITCH VIO/GRY WIRE W/ POWER CLOSING W/O AMBIANCE ILLUMINATION YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 VL VR VL HR ANT ANT ANT 1 2 3 4 5 6 7 8 9 10 30 31 GND VL GND VR GND HL GND HR BLK WIRE BLU/GRN WIRE BLU/PNK WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE CAN B H CAN-B L ANT ANT GND GND GND GND GND CAN-FH CAN-FL CENTER CONSOLE KEYLESS GO ANTENNA (UNDER CENTER CONSOLE) COMFORT SENSOR COMPUTER DATA LINES SYSTEM GND ANT GRN/BRN WIRE GRN/RED WIRE GRY WIRE GRY/BLK WIRE INSTRUMENT CLUSTER KEYLESS GO CONTROL MODULE (RIGHT REAR TRUNK) LEFT FRONT DOOR LOCK UNIT LEFT FRONT KEYLESS GO SENSOR UNIT LEFT REAR DOOR KEYLESS GO ANTENNA LEFT REAR DOOR LOCK UNIT LEFT REAR KEYLESS GO SENSOR UNIT MULTI-FUNCTION DISPLAY NCA WIRE OPENING ASSIST MOTOR ORG/ WIRE REAR WINDOW ANTENNA AMPLIFIER MODULE (REAR CENTER OF ROOF) RED WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RIGHT FRONT DOOR LOCK UNIT RIGHT FRONT KEYLESS GO SENSOR UNIT RIGHT REAR DOOR KEYLESS GO ANTENNA (IN RIGHT REAR DOORS) RIGHT REAR DOOR LOCK UNIT RIGHT REAR KEYLESS GO SENSOR UNIT TRUNK KEYLESS GO ANTENNA (CENTER FRONT OF TRUNK) WHT/BRN WIRE YEL WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/WHT WIRE

BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BRN WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/RED WIRE CAN B H CAN B L CAN-E L CAN-E H (-) SH 31 31 CENTER LEFT FRONT PTS ULTRASONIC SENSOR CENTER RIGHT FRONT PTS ULTRASONIC SENSOR (REAR BUMPER) COCKPIT SWITCH GROUP COMPUTER DATA LINES SYSTEM DATA FUSE 142 MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) GRN WIRE GRN/WHT WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES INNER LEFT FRONT PTS ULTRASONIC SENSOR (REAR BUMPER) INNER LEFT OUTER RIGHT REAR PTS REAR PTS ULTRASONIC ULTRASONIC SENSOR SENSOR INNER RIGHT FRONT PTS ULTRASONIC SENSOR INNER RIGHT REAR PTS ULTRASONIC SENSOR LEFT REAR FOOTWELL OUTER LEFT FRONT PTS ULTRASONIC SENSOR OUTER LEFT REAR PTS ULTRASONIC SENSOR OUTER RIGHT FRONT PTS ULTRASONIC SENSOR PTS CONTROL MODULE (RIGHT SIDE TRUNK) PTS OFF SWITCH REAR PTS WARNING INDICATOR REAR SAM CONTROL RED/WHT WIRE UPPER CONTROL PANEL MODULE WHT/RED WIRE WHT/YEL WIRE YEL/RED WIRE YEL/VIO 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/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

ADJUSTMENT SWITCH BACKREST SWITCH BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM DATA FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE FORE/AFT, HEIGHT, INCLINATION FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) 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 HEAD RESTRAINT ADJUSTMENT RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR CONTROL MODULE (IN RIGHT FRONT DOOR) RIGHT FRONT SEAT CONTROL MODULE RIGHT FRONT SEAT OPERATION SWITCH GROUP RIGHT REAR FOOTWELL LAMP SEAT CUHION FORE/AFT SWITCH SEATS SYSTEM SWITCH VIO/GRY 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 COMPUTER DATA LINES SYSTEM CAN-B L CAN-B H DASH COVER) FUSE 102 FUSE 92 GK R GK L HOT AT ALL TIMES LEFT FRONT SEAT BELT COMFORT FEATURE SOLENOID (BASE OF LEFT "B" PILLAR) LEFT FRONT SEAT CONTROL MODULE LEFT INSTRUMENT PANEL FUSE BOX (UNDER LEFT SIDE LEFT REAR SEAT BELT COMFORT FEATURE SOLENOID NCA WIRE ORG/ WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) REAR SEATS CONTROL MODULE (RIGHT SIDE OF TRUNK) RED WIRE RED/WHT WIRE RIGHT FRONT SEAT BELT COMFORT SOLENOID RIGHT FRONT SEAT CONTROL MODULE RIGHT REAR FOOTWELL RIGHT REAR SEAT BELT BUCKLE/BELT COMFORT FEATURE RIGHT REAR SEAT BELT COMFORT FEATURE SOLENOID SWITCH (IN RIGHT REAR SEAT BELT BUCKLE) WHT WIRE

2 AM/FMM ANT BASS MODULE SPEAKER BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE CAN B H CAN B L CC 1 2 3 4 5 COMPUTER DATA LINES SYSTEM FUSE 119 FUSE 129 FUSE 131 FZV GRN WIRE GRY WIRE GRY/RED WIRE HIGH DEFINITION TUNER CONTROL UNIT HOT AT ALL TIMES KEYLESS GO CONTROL MODULE (IF EQUIPPED) (RIGHT REAR TRUNK) LEFT REAR SURROUND SPEAKER NCA WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE REAR WINDOW ANTENNA AMPLIFIER MODULE (REAR CENTER OF ROOF) RED WIRE RED/BLK WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE SHIELD TWEETER LEFT REAR DOOR SPEAKER GROUP TWEETER RIGHT REAR DOOR SPEAKER GROUP VIO WIRE WHT WIRE WHT/GRN WIRE WOOFER

BLK WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CENTER COCKPIT SPEAKER (CENTERFILL) CENTER SUBWOOFER+ TXD CENTER SUBWOOFER- DIGITAL SOUND PROCESSOR (LEFT SIDE OF TRUNK) EMERGENCY CALL SYSTEM CONTROL UNIT (LEFT FRONT OF TRUNK) FRT CENTER TWEETER- FUSE 84 FUSE 77 GRN WIRE GRY WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT REAR SURROUND SPEAKER LSP + MIC IN - MOST DATA BUS CIRCUIT MUTE NCA WIRE ORG/ WIRE RED/BLK WIRE RED/GRN WIRE REMOTE WAKEUP MOST WAKEUP RH FRT WOOFER- LH FRT WOOFER- RH REAR WOOFER- LH REAR WOOFER- RIGHT INSTRUMENT PANEL FUSE BOX (UNDER RIGHT SIDE DASH COVER) SOUND AMPLIFIER MICROPHONE VIO WIRE WHT WIRE YEL WIRE