Mercedes-Benz S-class W221 facelift (2009-2013) computer data lines system Wiring diagrams

ABC CONTROL MODULE (LEFT REAR OF ENGINE COMPT) ABC LATERAL ACCELERATION SENSOR (UNDER FRONT OF CENTER CONSOLE) ABC REAR AXLE VALVE UNIT (UNDER CENTER REAR OF VEHICLE) ABC SUCTION RESTRICTOR VALVE (LEFT FRONT OF ENGINE COMPT) BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/PNK WIRE BLU/RED WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE CAN E H CAN E L COMPUTER DATA LINES SYSTEM GRN WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/VIO WIRE GRY/WHT WIRE HAV L QBMS HAV R ABHRS HAV L LEFT REAR ABC PRESSURE SENSOR (IN LEFT REAR WHEELWELL) LEFT REAR SUSPENSION STRUT PLUNGER CHECK VALVE LEFT REAR SUSPENSION STRUT PLUNGER VALVE NHLS NHLV NHRM NHRS NHRV PNK WIRE QBMV HAV R RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT ABC PRESSURE SENSOR (BEHIND RIGHT FRONT SIDE OF FRONT BUMPER) RIGHT REAR ABC PRESSURE SENSOR (IN RIGHT REAR WHEELWELL) RIGHT REAR BODY ACCELERATION SENSOR (RIGHT SIDE OF TRUNK) RIGHT REAR SUSPENSION STRUT PLUNGER CHECK VALVE RIGHT REAR SUSPENSION STRUT PLUNGER VALVE SIG WHT WIRE YEL/BLU WIRE

AIR SUSPENSION COMPRESSOR RELAY AIRMATIC COMPRESSOR UNIT AIRMATIC W/ ADS CONTROL MODULE (LEFT REAR OF ENGINE COMPT) BLK/YEL WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FRONT SAM CONTROL MODULE W/ FUSE, RELAY FUSE 46 FUSE 56 FUSE 6 FUSE 9 PREFUSE BOX (RIGHT REAR ENGINE COMPT) GRN/RED WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT FRONT AXLE DAMPING VALVE UNIT (LEFT FRONT WHEEL HOUSE) LEFT FRONT BODY ACCELERATION SENSOR (LEFT SIDE OF ENGINE COMPT) LEFT FRONT LEVEL SENSOR (LEFT FRONT WHEELWELL) MODULE (LEFT REAR ENGINE COMPT) NCA WIRE NVRS 1 VKPS VAL 1 VAL 2 30 VALV+ RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT FRONT BODY ACCELERATION SENSOR (RIGHT SIDE OF ENGINE COMPT) SIG SIG SIG ZAVVL NVLV SIG ZAMVL NVRM (+) SIG VAR 2 NVLS 1 VAR 1 ZASVL 31 VARV VKPV WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/PNK WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/PNK WIRE ZAMVL NVLM SIG ZASVL ZAVVL NVRV

AIRMATIC PRESSURE SENSOR AIRMATIC W/ ADS CONTROL MODULE (LEFT REAR OF ENGINE COMPT) BLK/RED WIRE BLK/YEL WIRE BLU/RED WIRE BLU/WHT WIRE BRN/BLK WIRE BRN/GRY WIRE CAN E H CAN E L CENTRAL RESERVOIR CHARGE VALVE COMPUTER DATA LINES SYSTEM GRN WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HAL 1 HAL 2 HAL V HAR 1 HAR 2 HAR V LEFT LEFT RIGHT REAR REAR FRONT FRONT LEFT REAR AXLE DAMPING VALVE UNIT (LEFT REAR WHEEL HOUSE) LEVELING CONTROL VALVES NCA WIRE NHRM NHRS 1 NHRV REAR AXLE LEVEL SENSOR (UNDER REAR CENTER OF VEHICLE) RIGHT RIGHT REAR AXLE DAMPING VALVE UNIT (RIGHT REAR WHEEL HOUSE) WHT/BLU WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE

1 2 CAN-C H CAN-C L 1 2 CAN-C L CAN-C H 13 14 CAN-B H CAN-B L 7 5 RFL-L RFL-L BACK UP LAMP BACKUP CAMERA VOLTAGE SUPPLY MODULE (LEFT SIDE OF TRUNK) BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM ELECTRIC CONTROL UNIT (VGS) FUSE GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES INTELLIGENT SERVO MODULE FOR DIRECT SELECT (TRANSMISSION HOUSING) INTERIOR PREFUSE BOX LEFT REAR FOOTWELL LEFT TAILLAMP REAR SAM CONTROL MODULE W/ FUSE, RELAY MODULE RED/WHT WIRE RIGHT TAILLAMP W/ BACKUP CAMERA WHT WIRE

1 2 3 30 CAN-E L CAN-E H BLK WIRE COMPUTER DATA LINES SYSTEM ELECTROHYDRAULIC POWER STEERING (RIGHT FRONT ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE FUSE, REALY MODULE (LEFT REAR ENGINE COMPT) FUSE PREFUSE BOX (RIGHT REAR OF ENGINE COMPT) GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES RED WIRE RED/YEL WIRE YEL WIRE

1 2 CAN-C L CAN-C H COMPUTER DATA LINES SYSTEM 10 6 12 4 1 30 CAN-B L CAN-B H 30 31 55 42 CAN-C L CAN-C H AUTOMATIC CHILD SEAT RECOGNITION AIR BAG OFF IND LAMP BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE CAN H H CAN H L CAN-F H CAN-F L COCKPIT SWITCH GROUP COMAND COMAND DISPLAY DISPLAY SWIVEL SWIVEL LEFT RIGHT SWITCH SWITCH COMAND DISPLAY DIMMER BRIGHTNESS CONTROL COMPUTER DATA LINES SYSTEM DTR CONTROL UNIT DTR RADAR SENSOR DTR WARNING LAMP IND ELECTRIC CONTROL UNIT (VGS) ESP LEVEL OFF ADJUSTMENT SWITCH SWITCH EXTERIOR LIGHTS, INSTRUMENT CLUSTER SYSTEM FREELY PROGRAMMABLE BUTTON FRONT CENTRAL OPERATING UNIT FUSE 66 GRN WIRE GRY WIRE GRY/RED WIRE GRY/YEL WIRE HAZARD WARNING SYSTEM BUTTON HOT W/ CHASIS CIRCUIT 87 RELAY ENERGIZED INSTRUMENT CLUSTER ME-SFI (ME) CONTROL MODULE (RIGHT REAR OF ENGINE COMPT) OUTPUT SPEED SENSOR PTS OFF SWITCH RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE SIG UPPER CONTROL PANEL CONTROL UNIT VIO WIRE VIO/WHT WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

1 2 NTC + NTC - 1 3 1 3 GND LSP- LSP+ GND 31 30 CAN-E H CAN-E L ALDW - BACK, SBS OFF BUTTON BEAM SWITCH BLK WIRE BLU WIRE BLU/YEL WIRE BRN WIRE COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CONTROL CONTACT SWITCH CRUISE CONTROL SWITCH DECELERATE, SET SWITCH RESUME FROM MEMORY SWITCH ACCELERATE, SET SWITCH DTR DISTANCE POTENTIOMETER (IF EQUIPPED) FANFARE HORNS PUSHBUTTON FANFARE HORNS, AIR BAG CLOCK SPRING CONTACT (TOP OF STEERING COLUMN) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) GEAR SELECTOR SWITCH DIRECT SELECT GRN WIRE GRN/WHT WIRE HEATER COIL TEMPERATURE SENSOR HOT AT ALL TIMES FUSE LEFT MULTI-FUNCTION STEERING WHEEL PUSHBUTTON GROUP LEFT, RIGHT TURN SIGNAL SWITCH HEAD LAMP FLASHER/HIGH BEAM SWITCH LOW MUTE BUTTON NCA WIRE NTC- OFF SWITCH OK BUTTON PNK/BLU WIRE RED WIRE RED/BLK WIRE RIGHT MULTI-FUNCTION STEERING WHEEL PUSHBUTTON GROUP SCROLL FORWARD/ BACK PUSHBUTTON STEERING COLUMN ADJUSTMENT SWITCH STEERING COLUMN MODULE (TOP OF STEERING COLUMN) STEERING LOCK SWITCH STEERING WHEEL ELECTRONICS STEERING WHEEL GEAR SHIFTER (+) (IF EQUIPPED) STEERING WHEEL VIBRATION MOTOR (W/ AUTOMATIC LANE RECOGNITION) SUPPLEMENTAL RESTRAINTS SYSTEM SYSTEM SELECTION PUSHBUTTON VCS (SBS) ON BUTTON VIO WIRE VIO/GRN WIRE WHT WIRE WINDSHIELD WASHER SYSTEM SWITCH WIPE SWITCH YEL 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)

A S SL EV 2 BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLK/VIO WIRE BLK/YEL WIRE BLU/GRY WIRE BLU/VIO WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CHECK ENGINE MIL INDICATOR CIRCUIT COMPUTER DATA LINES SYSTEM CRANKSHAFT HALL SENSOR (LEFT REAR OF ENGINE) EV 5 EV 6 EV 1 FRONT SAM CONTROL MODULE W/ FUSE/ RELAY MODULE FUSE 30 GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES ENGINE COMPARTMENT PREFUSE BOX FUSE 6 HOT FILM MAF SENSOR (CENTER REAR OF ENGINE) INSTRUMENT CLUSTER LEFT KNOCK SENSOR 2 (LEFT CYLINDER BANK, UNDER INTAKE MANIFOLD) M R IPM M R LSIK ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) NCA WIRE ORG/ WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/GRN WIRE PNK/GRY WIRE PNK/VIO WIRE PNK/YEL WIRE PRESSURE SENSOR RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RELAY RIGHT KNOCK SENSOR 1 (RIGHT CYLINDER BANK, UNDER INTAKE MANIFOLD) SIG THROTTLE VALVE ACTUATOR (ON THROTTLE BODY ASSEMBLY) UPSTREAM TWC (KAT) (LEFT REAR OF ENGINE COMPT) VIO/BLK WIRE VIO/BRN WIRE VIO/YEL WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE YEL/WHT WIRE

15 U U UDB EKP LAUF A S SL P AIR PUMP (CENTER FRONT OF ENGINE) AIR PUMP RELAY BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/PNK WIRE BRN/WHT WIRE BRN/YEL WIRE CAN C H CAN C L CAN-I H CAN-E H CAN-C H EGS COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CRASH CAN-I L CAN-E L CAN-C L D/S DS SIG EKP EKP LAUF ENGINE CIRCUIT 87 RELAY FUEL PRESSURE SENSOR (UNDER LEFT REAR OF VEHICLE) FUEL PUMP (FP) FUEL PUMP CONTROL MODULE (UNDER LEFT REAR SEAT) FUSE 20 FUSE 22 FUSE 21 STARTER CIRCUIT 50 RELAY FUSE 23 FUSE 24 FUSE 45 FUSE 55 GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/PNK WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ CIRCUIT 15 RELAY ENERGIZED LEFT REAR FOOTWELL ME-SFI (ME) CONTROL UNIT (RIGHT REAR OF ENGINE COMPT) NCA WIRE ORG/ WIRE PREMAIR SENSOR (BEHIND RIGHT SIDE OF RADIATOR) PURGE CONTROL VALVE (LEFT FRONT OF ENGINE COMPT) PWG+ (-) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE SIG SUPPLEMENTAL RESTRAINTS SYSTEM SYSTEM TNA 50 RV VIO/GRN WIRE VIO/YEL WIRE YEL/RED WIRE