Mercedes-Benz S-class W221 facelift (2009-2013) upper control panel control module 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

1 2 CAN B L CAN B H 11 10 CAN-E L CAN-E H 12 13 CAN-F L CAN-F H 6 12 2 CAN-B L CAN-B H ADJUSTABLE, HEATED OUTSIDE MIRROR ANALOG CLOCK AUDIBLE TURN SIGNAL INDICATOR BLK WIRE BLU WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE COCKPIT SWITCH GROUP COMBINATION SWITCH COMPUTER DATA LINES SYSTEM FOG LAMP INDICATOR FRONT CENTRAL OPERATING UNIT GRN WIRE GRN/WHT WIRE GRY/RED WIRE GRY/YEL WIRE HAZARD WARNING SYSTEM BUTTON HCS (SRA) SWITCH HEADLAMP FLASHER/ HIGH BEAM SWITCH HOT AT ALL TIMES INTERIOR PREFUSE BOX FUSE INSTRUMENT CLUSTER LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) LEFT TURN SIGNAL IND LEFT, RIGHT TURN SIGNAL SWITCH NIGHT VISION ASSIST BUTTON OUTSIDE MIRROR AMBIENT LAMP OUTSIDE MIRROR AMBIENT LAMP LEFT ELECTRICALLY ADJUSTABLE, HEATED OUTSIDE MIRROR OUTSIDE MIRROR TURN SIGNAL LAMP OUTSIDE MIRROR TURN SIGNAL LAMP RIGHT ELECTRICALLY REAR FOG LAMP INDICATOR RED WIRE RED/WHT WIRE RIGHT FRONT DOOR CONTROL MODULE (IN RIGHT FRONT DOOR) RIGHT TURN SIGNAL IND ROTARY LIGHT SWITCH STEERING COLUMN MODULE (TOP OF STEERING COLUMN) UPPER CONTROL PANEL CONTROL MODULE YEL WIRE YEL/BLK WIRE YEL/WHT 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 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 (CENTER DASH) BACKUP CAMERA CONTROL UNIT (IF EQUIPPED) BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE CENTRAL GATEWAY CONTROL MODULE (LEFT FRONT DS (FDS)) (LEFT FRONT OF TRUNK) 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 DYANAMIC SEAT CONTROL (W/ DYNAMIC SEAT REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RIGHT REAR MULTICONTOUR BACKREST CONTROL MODULE UPPER CONTROL PANEL CONTROL MODULE UPPER FOOTWELL)

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

"FORWARD" BUTTON 1 2 3 31 LIN-BUS 30 13 3 CAN-A L CAN-A H 31 PROGKEY CAN-A L WBS-OUT 30 CAN-A H WBS-IN WBS-LED 5 13 16 6 7 LSP+ LSP- ANTENNA SPLITTER BACK BUTTON BACKREST SIDE SEAT CONTOUR BUTTON BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/RED WIRE BUTTON "BACK" BUTTON "ON" CAN B H CAN B L CAN D H CAN D L CENTER CONSOLE BUTTON GROUP COMAND CONTROL UNIT COMPUTER DATA LINES SYSTEM DISC/RADIO QUICK SELECT BUTTON EMERGENCY CALL SYSTEM CONTROL UNIT (LEFT FRONT OF TRUNK) FIRM MASSAGE FUNCTION BUTTON FREELY PROGRAMM- ABLE BUTTON FRONT CENTRAL OPERATING UNIT GENTLE MASSAGE FUNCTION BUTTON GPS GRN WIRE GRY WIRE GRY/RED WIRE GRY/WHT WIRE HAZARD WARNING SYSTEM BUTTON HEAD RESTRAINT FOLDING BUTTON INCREASE VOLUME BUTTON LEFT "BACK" BUTTON LEFT REAR FOOTWELL LEFT SCREEN BUTTON LEFT SEAT SELECTION CAN-AL CAN-AH BUTTON LUMBAR SUPPORT HEIGHT ADJUSTMENT BUTTON LUMBAR SUPPORT SEAT CONTOUR BUTTON MULTI- CONTOUR SEAT QUICK SELECT BUTTON NCA WIRE PORTABLE CTEL ANTENNA AMPLIFIER (LEFT SIDE OF TRUNK) RCP(HBF) CONTROL UNIT REAR TURN/ FUSH CONTROL REAR WINDOW ROLLER SUN BLIND BUTTON RED WIRE RED/WHT WIRE REDUCE VOLUME BUTTON RIGHT "BACK" BUTTON RIGHT SCREEN BUTTON RIGHT SEAT SELECTION BUTTON TELEPHONE, GPS ROOF ANTENNA TELEPHONE/ NAVIGATION QUICK SELECT BUTTON TRANSMISSION MODES BUTTON TURN/ PUSH CONTROL UHI PORTABLE CTEL HOLDER (UNIVERSAL HANDY INTERFACE) UNIVERSAL PORTABLE CTEL INTERFACE (UPCI (UHI)) CONTROL MODULE UPPER CONTROL PANEL CONTROL MODULE VIO WIRE VOLUME CONTROL WHT/YEL WIRE YEL WIRE YEL/BLK WIRE