Mercedes-Benz S-class W221 facelift (2009-2013) (right front trunk) Wiring diagrams

1 2 3 4 CAN-B L CAN-B H 31 30 12 13 CAN-F L CAN-F H 15 14 13 12 15 CAN-B L CAN-B H 42 55 26 CAN-C H CAN-C L 6 12 CAN-B L CAN-B H 6 5 4 DATA 9 22 25 21 HD-AS ALARM SIREN W/AUXILIARY BATTERY (LEFT FRONT WHEELHOUSE) ATA (EDW) FUNCTION INDICATOR BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER DOOR INFRARED SENSOR ENGINE HOOD OPEN/ CLOSED SWITCH (ATA) FUEL FILLER FLAP MOTOR FUSE 29 FUSE 80 GRN WIRE GRY WIRE GRY/BLU WIRE HEADLIGHTS SYSTEM HORNS SYSTEM HOT AT ALL TIMES HYBRID ENGINE HOOD CONTACT SWITCH (3.5L) INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) LEFT REAR FOOTWELL ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) NCA WIRE PNK WIRE PNK/RED WIRE REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) RED WIRE RED/BLK WIRE RED/BLU WIRE SPIEGEL TRUNK LID CONTACT SWITCH TRUNK LID EMERGENCY RELEASE SWITCH TRUNK LID EXTERNAL OPERATION SWITCH UPPER CONTROL PANEL CONTROL MODULE VIO WIRE W/ HYBRID DERIVE WHT WIRE YEL WIRE YEL/WHT WIRE

13 14 2 CAN-B H CAN-B L 3.BL 14 27 KZL-R KZL-L 2 11 CAN-E H CAN-E L 3 1 7 8 NSL-R BSL-R RFL-L BI-R 4 9 5 NSL-L BSL-L RFL-L 57 L 57 R BACKUP LAMPS CIRCUIT BI-L BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/GRY WIRE CENTER HIGH MOUNTED STOP LAMP COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/PNK WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES ENGINE COMPARTMENT PREFUSE BOX FUSE LEFT ACTIVE CURVE ILLUMINATION POSITION SENSOR LEFT FRONT HEADLAMP UNIT LEFT LICENSE PLATE LAMP LEFT REAR FOOTWELL LEFT RIGHT FRONT FRONT SIDE SIDE MARKER MARKER LAMP LAMP LEFT TAILLAMP NCA WIRE PARKING LAMP PNK 6 WIRE REAR FOG LAMP REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) RED WIRE RED/GRY WIRE RIGHT ACTIVE CURVE ILLUMINATION POSITION SENSOR RIGHT FRONT HEADLAMP UNIT RIGHT LICENSE PLATE LAMP RIGHT TAILLAMP STANDING STOP, TAIL, REAR PARKING LAMP REAR SIDE MARKER LAMP BACKUP LAMP FOG LAMP STOP/ TAIL/ PARKING LAMP TURN SIGNAL LAMP TURN SIGNAL LAMP (LEFT SIDE OF ENGINE COMPT) TURN SIGNAL LAMP REAR SIDE BACKUP LAMP MARKER LAMP VIO WIRE W/ BACKUP CAMERA WHT WIRE XENON HEADLAMP CONTROL MODULE YEL WIRE

AC RECIRCULATION UNIT, PTC HEATER BOOSTER (IF EQUIPPED) BLK WIRE BRN WIRE DC/DC CONVERTER CONTROL MODULE ELECTRIC AIR PUMP, POWER ELECTRONICS CONTROL UNIT LEFT REAR FOOTWELL POWER ELECTRONICS CONTROL UNIT RIGHT FRONT SEAT BELT COMFORT SOLENOID VACUUM PUMP RELAY

AIR CONDITIONING SYSTEM BLK/BRN WIRE BLK/PNK WIRE BRN WIRE BRN/GRY WIRE FUSE 4 GRY/GRN WIRE HEATED WINDSHIELD HEATED WINDSHIELD CONTROL MODULE HOT AT ALL TIMES INTERIOR PREFUSE BOX (RIGHT FRONT FOOTWELL) LEFT HEATED SIDE WINDOW LEFT REAR FOOTWELL LIN (-) LIN-DATA LIN (+) POWER DISTRIBUTION SYSTEM RED WIRE RED/WHT WIRE RIGHT HEATED SIDE WINDOW W/ SPECIAL PROTECTION

1 2 3 4 AIS SER 10 9 8 7 FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE 14 13 CAN-B L CAN-B H 31 LL HR 31 9 3 5 1 12 6 FRB-VR FRB-VL HSK-BEL 31 CAN-B H CAN-B L AMBIANCE ILLUMINATION LED 1 AMBIANCE ILLUMINATION LED 2 AMBIANCE ILLUMINATION LED 3 BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN-B H CAN-B L COMPUTER DATA LINES SYSTEM DATA FLAT WIRE FOG LAMP IND LAMP GARAGE DOOR OPENER ASSEMBLY GARAGE DOOR OPENER INDICATOR LAMP GLOVE COMPARTMENT LAMP GLOVE COMPARTMENT LAMP SWITCH GRN WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES INTERIOR FUSE PREFUSE BOX (RIGHT FRONT FOOTWELL) ILLUMINATION FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE INTERIOR REARVIEW MIRROR UNIT LAMP LEFT FRONT FOOTWELL LAMP LEFT FRONT VANITY MIRROR ILLUMINATION LEFT FRONT VANITY MIRROR ILLUMINATION SWITCH LEFT LUGGAGE COMPARTMENT LAMP LEFT READING LAMP LEFT REAR DOME LAMP LEFT REAR FOOTWELL LEFT REAR VANITY MIRROR ILLUMINATION LEFT TRUNK LID AMBIENT, WARNING LAMP LL HL NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE (CENTER FRONT OF ROOF) RAIN/LIGHT SENSOR (FRONT CENTER OF ROOF) REAR AMBIENT LAMP REAR FOG LAMP IND REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED WIRE RED/GRY WIRE RIGHT AMBIENT READING LAMP LAMP RIGHT FRONT FOOTWELL LAMP RIGHT LUGGAGE COMPARTMENT LAMP RIGHT REAR VANITY MIRROR RIGHT TRUNK LID AMBIENT, WARNING LAMP ROTARY LIGHT SWITCH UPPER CONTROL PANEL CONTROL MODULE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED 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 1 2 CAN B L CAN B H 7 8 9 10 11 12 SIBL SIBL (+) (+) 9 10 11 12 13 14 MOT-NV MOT-NV MOT-LV MOT-NV MOT-LV BACKREST SWITCH BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/PNK WIRE BLU/RED WIRE BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM FLAT WIRE FLAT WIRE FLAT WIRE 1 2 3 UB 31 DATA FORE/AFT ADJUSTMENT SWITCH FRONT (OR) REAR SEAT ADJUSTMENT SELECTION SWITCH FUSE 143 FUSE 144 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/PNK WIRE GRN/YEL WIRE GRY/PNK WIRE HEAD RESTRAINT ADJUSTMENT SWITCH HOT AT ALL TIMES HS LV- HS LV- HS NV+ HS NV+ HS LV+ HS NV+ HS NV+ HS NV+ HS NV- HS NV- LEFT REAR DOOR CONTROL MODULE LEFT REAR HEAD RESTRAINT INCLINATION ADJUSTMENT MOTOR LEFT REAR SEAT CUSHION INCLINATION ADJUSTMENT MOTOR (UNDER LEFT REAR SEAT) LEFT REAR SEAT FORE/AFT ADJUSTMENT MOTOR (UNDER LEFT REAR SEAT) LEFT REAR SEAT OPERATION SWITCH GROUP MOT-NV MOT-LV 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 (CENTER TRUNK) REAR SEATS CONTROL MODULE (RIGHT SIDE OF TRUNK) RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RIGHT REAR RIGHT REAR DOOR CONTROL MODULE RIGHT REAR HEAD RESTRAINT INCLINATION ADJUSTMENT MOTOR RIGHT REAR SEAT OPERATION SWITCH GROUP RIGHT SEAT FORE/AFT ADJUSTMENT MOTOR (UNDER RIGHT REAR SEAT) SEAT CUSHION INCLINATION ADJUSTMENT MOTOR (UNDER RIGHT REAR SEAT) SEAT CUSHION INCLINATION SWITCH SEATS SYSTEM VIO/BLK WIRE VIO/BLU 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 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

30 115 AC INVERTER ALARM LEFT REAR DOOR SIGNAL SIREN CONTROL MODULE BRN WIRE CIGAR LIGHTER RELAY DC/AC CONVERTER CONTROL UNIT DIGITAL SOUND PROCESSOR (W/ BANG, OLUFSEN SOUND SYSTEM) ELECTRIC PARKING BRAKE CONTROL UNIT FROM FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (DIAGRAM 1 OF 4) FROM INTERIOR PREFUSE BOX (DIAGRAM 1 OF 4) FROM REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (DIAGRAM 3 OF 4) FUSE 1 FUSE 2 FUSE 10 FUSE 117 FUEL PUMP RELAY FUSE 130 FUSE 131 FUSE 139 FUSE 140 FUSE 3 FUSE 4 FUSE 5 FUSE 7 FUSE 71 FUSE 73 FUSE 70 FUSE 72 FUSE 74 FUSE 77 FUSE 75 FUSE 76 FUSE 79 FUSE 78 FUSE 80 FUSE 8 FUSE 6 FUSE 81 FUSE 83 FUSE 82 FUSE 85 FUSE 84 FUSE 86 FUSE 87 FUSE 88 FUSE 89 FUSE 90 FUSE 91 FUSE 9 FUSE FUSE FUSE GRY/BLU WIRE HEATED REAR WNDOW RELAY HEATING ELEMENT INTELLIGENT SERVO MODULE FOR DIRECT SELECT INTERIOR LIGHTS SYSTEM (RIGHT REAR FOOTWELL) ME-SFI (ME) CONTROL UNIT, FUEL PUMP CONTROL UNIT NCA WIRE ORG/BLK WIRE ORG/BLU WIRE OUTSIDE SPEAKER INTERFE- RENCE FILTER PNK/GRN WIRE PNK/GRY WIRE PNK/RED WIRE POWER ELECTRONICS CIRCULATION PUMP RELAY 1 POWER ELECTRONICS CIRCULATION PUMP RELAY 2 POWER OUTLET RELAY POWER WINDOW HYDRAULIC PUMP RELAY REAR CIGAR LIGHTER REAR FUSE BOX I REAR FUSE BOX II REAR WINDOW ANTENNA AMPLIFIER MODULE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR DOOR CONTROL MODULE SOCKET SPECIAL PROTECTION VEHICLE ADDITIONAL FUSE FUSE HOLDER (RIGHT FRONT OF TRUNK) SPECIAL VEHICLE MULTI-FUNCTION CONTROL MODULE TO CIRCUIT TO CIRCUIT 15 RELAY/ SPARE 1 RELAY (CHANGE OVER CONTACT) (DIAGRAM 4 OF 4) TO FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (DIAGRAM 4 OF 4) VACUUM LEFT FRONT DOOR PUMP CONTROL RELAY (+) MODULE

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 (CENTER TRUNK) GRN/BLK WIRE GRY/PNK WIRE HEATED SEAT SWITCH HOT AT ALL TIMES LEFT REAR BACKREST HEATED CUSHION (W/ SEAT HEATERS) 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 (W/ SEAT HEATERS) LEFT REAR SEAT OPERATION SWITCH GROUP LEFT REAR SEAT VENTILATION BLOWER REGULATOR (UNDER LEFT REAR SEAT) NCA WIRE PNK/BRN WIRE REAR SAM CONTROL REAR SEATS CONTROL MODULE (RIGHT SIDE OF TRUNK) RED WIRE RED/WHT WIRE RIGHT REAR BACKREST HEATED CUSHION (W/ SEAT HEATERS) 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 (W/ SEAT HEATERS) RIGHT REAR SEAT OPERATION SWITCH GROUP RIGHT REAR SEAT VENTILATION BLOWER REGULATOR SEAT VENTILATION SWITCH YEL WIRE YEL/RED WIRE

-1 +2 30 SIG 31 BLK WIRE BLU WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/RED WIRE CAN B L CAN B H COMPUTER DATA LINES SYSTEM FUSE 74 GRY/BLK WIRE HOT AT ALL TIMES LED RED WIRE RIGHT INSTRUMENT PANEL FUSE BOX (UNDER RIGHT SIDE DASH COVER) TLC (HDS) BUTTON TLC (HDS) CONTROL MODULE (RIGHT REAR OF TRUNK) TLC (HDS) HYDRAULIC PUMP (RIGHT REAR OF TRUNK) TRUNK LID POSITION SENSOR (RIGHT SIDE OF TRUNK) WHT WIRE YEL/BLK WIRE