Mercedes-Benz S-class W221 facelift (2009-2013) rear sam control module w/ fuse, relay module (center 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

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

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

1 2 3 REAR FOG LAMP IND 31 CAN-B L CAN-B H 55 R 9 10 11 30 CAN-E H CAN-E L 31 BI-XENON LAMP W/ INTEGRAL IGNITION MODULE BRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN B H CAN B L CAN-F L CAN-F H CAN-G H CAN-G L COMBINATION SWITCH HEADLAMP FLASHER/ HIGH BEAM SWITCH COMPUTER DATA LINES SYSTEM FOG LAMP INDICATOR FRONT SAM CONTROL MODULE W/ FUSE, RELAY FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 49 FUSE FUSE MODULE (LEFT REAR ENGINE COMPT) GRN WIRE GRN/WHT WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/ORG WIRE GRY/RED WIRE GRY/VIO WIRE GRY/YEL WIRE HEADLAMP RANGE ADJUSTMENT MOTOR HIGH BEAM INDICATOR LAMP HIGH BEAM SOLENOID HOT AT ALL TIMES HOT AT ALL TIMES ENGINE FUSE COMPARTMENT PREFUSE BOX (RIGHT REAR ENGINE COMPT) HOT W/ CIRCUIT 15 RELAY ENERGIZED INFRARED LAMP INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM LEFT FRONT FOG LAMP LEFT REAR FOOTWELL LEFT TAILLAMP LOW BEAM LAMP LOW BEAM SWITCH MODULE (PART OF RIGHT HEADLAMP UNIT) NSL-L NSL-R PNK/BLU WIRE REAR FOG LAMP REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) RED WIRE RIGHT DAYTIME RUNNING LAMPS HEADLAMP (IF EQUIPPED) RIGHT FRONT LEFT DAYTIME FOG LAMP RUNNING LAMPS HEADLAMP (IF EQUIPPED) RIGHT TAILLAMP ROTARY LIGHT SWITCH STEERING COLUMN MODULE (TOP OF STEERING COLUMN) UPPER CONTROL PANEL CONTROL MODULE W/ NIGHT VISION ASSIST YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/ORG WIRE YEL/WHT 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

1 2 3 4 5 6 7 8 9 10 11 12 FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE 1 2 3 4 5 6 7 8 ALS SER 1 2 3 4 5 CAN-B L 31 LL HR 31 DATA 30 31 AMBIENT LAMP AUTOMATIC DIMMING MIRROR BACK AUTOMATIC DIMMING INTERIOR REARVIEW MIRROR SENSOR BLU WIRE BRN WIRE BRN/RED WIRE BUTTON 1 CAN-B H 31 30 COMPUTER DATA LINES SYSTEM DOOR CONTACT ON/OFF SWITCH ELECTRIC PARKING BRAKE SWITCH EMERGENCY CALL SYSTEM CONTROL UNIT (LEFT FRONT OF TRUNK) FLAT WIRE FLAT WIRE FLAT WIRE 3 2 1 FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE FORWARD AUTOMATIC DIMMING INTERIOR REARVIEW MIRROR SENSOR FRONT DOME LAMP FRONT DOME LAMP SWITCH FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) FUSE 126 GARAGE DOOR OPENER GARAGE DOOR OPENER BUTTON 2 GARAGE DOOR OPENER BUTTON 3 GARAGE DOOR OPENER INDICATOR LAMP GARAGE DOOR OPENER TRANSMITTER UNIT (INSIDE REARVIEW MIRROR) GRN WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES INSIDE REARVIEW MIRROR UNIT LEFT FRONT READING LAMP SWITCH LEFT READING LAMP LEFT REAR FOOTWELL LL HR MB-INFO, TELEDIAGNOSIS BUTTON GROUP NCA WIRE OVERHEAD CONTROL PANEL CONTROL MODULE (CENTER FRONT OF ROOF) REAR DOME LAMP, SWITCH REAR ROLLER SUN BLIND SWITCH REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) RED WIRE RED/GRY WIRE RIGHT FRONT READING LAMP SWITCH RIGHT READING LAMP ROOF SWITCH SOS PUSHBUTTON SWITCH YEL WIRE YEL/GRN WIRE YEL/PNK 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

1 2 CAN B L CAN B H 13 12 CAN-E L CAN-E H 16 15 CAN-B L CAN-B H 18 26 AUS TEMP - AUS TEMP + 26 25 CAN-B L CAN-B H 3 1 CAN-B H CAN-B L 3 4 CAN-B L CAN-B H AAC (KLA) CONTROL UNIT (CENTER DASH) BLK WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM EIS (EZS) CONTROL UNIT ESP CONTROL MODULE FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) FUSE 115 GRN WIRE GRN/WHT WIRE HEATED REAR WINDOW HEATED REAR WINDOW RELAY HOT AT ALL TIMES INTERIOR FUSE 3 PREFUSE BOX (RIGHT FRONT FOOTWELL) LEFT "C" PILLAR) LEFT ELECTRICALLY ADJUSTABLE, HEATED EXTERIOR MIRROR LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) MIRROR HEATER OUTSIDE TEMPERATURE DISPLAY TEMPERATURE SENSOR OVERHEAD CONTROL PANEL CONTROL MODULE (CENTER FRONT OF ROOF) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) REAR WINDOW INTERFERENCE SUPPRESSION CAPACITOR RED WIRE RED/BLU WIRE RIGHT ELECTRICALLY ADJUSTABLE, HEATED EXTERIOR MIRROR RIGHT FRONT DOOR CONTROL MODULE (IN RIGHT FRONT DOOR)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 BSL R 3 BL ANTI-THEFT SYSTEM COMPUTER DATA LINES SYSTEM ANTI-THEFT SYSTEM WARNING SYSTEMS BLK WIRE BLK/GRN WIRE BLK/PNK WIRE BLK/RED WIRE BLK/WHT WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/PNK WIRE BRN/VIO WIRE BRN/YEL WIRE CAN-B H CAN-B L 15 54 31 CRUISE CONTROL SYSTEM ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (3.5L) (LEFT REAR ENGINE COMPT) FUSE GK L GK R GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/PNK WIRE GRY/VIO WIRE GRY/WHT WIRE HD AS HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT AT ALL TIMES INTERIOR FUSE PREFUSE BOX (RIGHT FRONT FOOTWELL) HS + HS 1 HS 2 HS(+) INSTRUMENT CLUSTER SYSTEM INSTRUMENT CLUSTER, MIRRORS SYSTEMS KZL L LEFT REAR FOOTWELL MEMORY SYSTEMS NAVIGATION SYSTEM NSL R NSL L RFL L BI L RFL L BI R BSL L PASSIVE RESTRAINT SYSTEM PNK/RED WIRE POWER DISTRIBUTION SYSTEM POWER DISTRIBUTION SYSTEM NAVIGATION, SOUND SYSTEMS POWER TOPS SYSTEM POWER WINDOWS SYSTEM REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SEATS, MEMORY SYSTEMS SHIFT INTERLOCK SYSTEM ENGINE CONTROLS SYSTEM SIG SOUND SYSTEMS SOUND SYSTEMS EXTERIOR LIGHTS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM DEFOGGER SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM INTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM VOLUME CONTROL INTERMEDIATE CONNECTOR (W/ DVD) WHT WIRE

ACCELERATOR PEDAL SENSOR (TOP OF ACCELERATOR PEDAL ASSEMBLY) BLK/BLU WIRE BLK/GRN WIRE BLK/PNK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/PNK WIRE BRN/WHT WIRE BRN/YEL WIRE CAN I H CAN I L CRASH FUSE 116 FUSE 118 FUSE 128 GRN WIRE GRN/BRN WIRE GRN/PNK WIRE GRN/VIO WIRE GRY/BLU WIRE GRY/PNK WIRE HOT AT ALL TIMES HOT AT ALL TIMES RIGHT INSTRUMENT PANEL FUSE BOX FUSE 75 HV- HYBRID ENGINE HOOD CONTACT SWITCH NCA WIRE PNK/BLK WIRE PNK/GRN WIRE PNK/YEL WIRE POWER ELECTRONICS CIRCULATION PUMP RELAY 1 POWER ELECTRONICS CIRCULATION PUMP RELAY 2 POWER ELECTRONICS CONTROL UNIT (RIGHT SIDE UNDERCARRIAGE) REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE (CENTER TRUNK) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE STARTING/ CHARGING SYSTEM T EM T EM GND TNA U COS U SIN VIO/GRN WIRE VIO/YEL WIRE