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

1 1 2 2 9 10 1 4 2 3 8 7 KISI-MOT + 31 ZV-MOT ZV-MOT 31 DFK 1 2 4 3 CAN-B L CAN-B H 30 31 1 2 FLAT WIRE FLAT WIRE 1 2 SIG (-) 1 3 CAN-B L CAN-B H DOOR CONTACT ON, OFF SWITCH 4 3 2 1 FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE 15 31 15 31 4 5 MOTOR MOTOR 4 5 SVS-MOT SVS-MOT 9 10 1 2 4 3 TZS-MOT TZS-MOT ZV-MOT ZV-MOT 31 DFK BLK WIRE BLU WIRE BRN WIRE BRN/RED WIRE CL (ZV) MOTOR COMPUTER DATA LINES SYSTEM DOOR ADDITIONAL LOCK MOTOR DRIVE LOCK PAWL SWITCH FLAT WIRE FLAT WIRE FLAT WIRE 8 7 FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE 3 4 2 1 31 58 58 31 GRN WIRE GRN/BRN WIRE GRN/RED WIRE GRY WIRE KEYLESS GO SYSTEM CIRCUIT NCA WIRE OPENING ASSIST MOTOR ORG/ WIRE OVERHEAD CONTROL PANEL CONTROL MODULE (CENTER FRONT OF ROOF) PNK/BLU WIRE PNK/VIO WIRE POWER CLOSING MOTOR RED WIRE RED/GRN WIRE RIGHT FRONT DOOR CONTROL MODULE (IN RIGHT FRONT DOOR) RIGHT FRONT DOOR ENTRANCE, EXIT LAMP RIGHT FRONT DOOR INSIDE HANDLE ILLUMINATION RIGHT FRONT DOOR LOCK SWITCH RIGHT FRONT DOOR TRIM STRIP ILLUMINATION LAMP 1 RIGHT FRONT DOOR WARNING LAMP RIGHT REAR DOOR CONTROL MODULE (IN RIGHT REAR DOOR) RIGHT REAR DOOR ENTRANCE, EXIT LAMP RIGHT REAR DOOR LOCK UNIT RIGHT REAR DOOR TRIM STRIP ILLUMINATION RIGHT REAR DOOR WARNING LAMP RIGHT REAR INSIDE DOOR HANDLE ILLUMINATION ROTARY TUMBLER SWITCH SAFETY LIMIT SWITCH W/ POWER CLOSING WHT/BRN WIRE WHT/VIO WIRE YEL WIRE

1 2 3 FLAT WIRE FLAT WIRE FLAT WIRE UB 31 DATA 1 2 7 9 30 31 CAN-B L CAN-B H 1 2 CAN B L CAN B H 2 7 9 31 CAN-B L CAN-B H BLU WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM FUSE 102 FUSE 92 PANEL FUSE BOX (UNDER LEFT SIDE DASH COVER) GRN/RED WIRE GRN/WHT WIRE HEATED SEAT SWITCH HOT AT ALL TIMES LEFT FRONT BACKREST HEATED CUSHION LEFT FRONT DOOR CONTROL MODULE (IN LEFT FRONT DOOR) LEFT FRONT SEAT BACKREST VENTILATION MOTOR GROUP (IF EQUIPPED) LEFT FRONT SEAT CONTROL MODULE LEFT FRONT SEAT CUSHION VENTILATION LEFT FRONT SEAT HEATED CUSHION LEFT FRONT SEAT OPERATION SWITCH GROUP LEFT INSTRUMENT MOTOR GROUP RED WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RIGHT FRONT BACKREST HEATED CUSHION RIGHT FRONT DOOR CONTROL MODULE (IN RIGHT FRONT DOOR) RIGHT FRONT SEAT BACKREST VENTILATION MOTOR GROUP (IF EQUIPPED) RIGHT FRONT SEAT CONTROL MODULE RIGHT FRONT SEAT CUSHION VENTILATION MOTOR GROUP RIGHT FRONT SEAT HEATED CUSHION RIGHT FRONT SEAT OPERATION SWITCH GROUP SEAT VENTILATION SWITCH YEL/RED 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

1 2 3 CAN-A L CAN-A H 31 1 2 3 CAN-B L CAN-B H 31 1 2 CAN B L CAN B H 1 2 CAN-A L CAN-A H 1 3 CB CAN-B L CAN-B H 12 3 CAN-B L CAN-B H 13 3 CAN-A L CAN-A H 15 14 CAN-B L CAN-B H 3 4 CAN-A L CAN-A H 3 6 CAN-A L CAN-A H 4 3 CAN B L CAN B H 4 8 CAN-A L CAN-A H 5 6 CAN-B L CAN-B H 7 9 CAN-B L CAN-B H 9 10 CAN-B L CAN-B H 9 18 CAN-B L CAN-B H BLK WIRE BLK/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE COMAND CONTROL UNIT FRONT CENTRAL OPERATING UNIT GRN WIRE PNK/BRN WIRE PTS CONTROL MODULE (RIGHT SIDE TRUNK) RCP (HBF) CONTROL MODULE REAR AC CONTROL MODULE (IF EQUIPPED) REAR SEATS CONTROL MODULE (RIGHT SIDE OF TRUNK) RIGHT FRONT DOOR CONTROL MODULE (IN RIGHT FRONT DOOR) RIGHT FRONT SEAT CONTROL MODULE RIGHT INTERIOR CAN/FFS (RBA) RIGHT REAR DOOR CONTROL MODULE (IN RIGHT REAR DOOR) TELEMATICS CAN VOLTAGE DISTRIBUTOR CONNECTOR VOLTAGE DISTRIBUTOR CONNECTOR WEIGHT SENSING SYSTEM (WSS) CONTROL UNIT (RIGHT FRONT SEAT) YEL WIRE

1 2 3 4 CAN-B L CAN-B H 31 30 1 2 4 3 CAN-B L CAN-B H 30 31 2 3 31 DFK 31 31 58 58 31 FLAT WIRE FLAT WIRE FLAT WIRE FLAT WIRE BLK WIRE BLU WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE CAN B L CAN B H COMPUTER DATA LINES SYSTEM CORNERING ILLUMINATION (IF EQUIPPED) FLAT WIRE FRONT CIGAR LIGHTER W/ ASHTRAY ILLUMINATION FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) GROUND DISTRIBUTION SYSTEM GRY/BLU WIRE GRY/GRN WIRE LEFT FRONT HEADLAMP UNIT LEFT REAR ASHTRAY ILLUMINATION (W/ AMBIANCE ILLUMINATION) LEFT REAR DOOR CONTROL MODULE LEFT REAR DOOR ENTRANCE, EXIT LAMP LEFT REAR DOOR INSIDE HANDLE ILLUMINATION LEFT REAR DOOR LOCK UNIT LEFT REAR DOOR TRIM STRIP ILLUMINATION LEFT REAR DOOR WARNING LAMP LEFT REAR DRIVE LOCK PAWL SWITCH LEFT REAR ROTARY TUMBLER SWITCH LEFT REAR SAFETY LIMIT SWITCH LEFT XENON HEADLAMP CONTROL MODULE NCA WIRE ORG/ WIRE REAR CIGAR LIGHTER RED WIRE RED/WHT WIRE RIGHT FRONT HEADLAMP UNIT RIGHT REAR ASHTRAY ILLUMINATION (W/ AMBIANCE ILLUMINATION) RIGHT REAR DOOR CONTROL MODULE (IN RIGHT REAR DOOR) RIGHT REAR DOOR ENTRANCE/EXIT LAMP RIGHT REAR DOOR INSIDE HANDLE ILLUMINATION RIGHT REAR DOOR LOCK UNIT RIGHT REAR DOOR TRIM STRIP ILLUMINATION RIGHT REAR DOOR WARNING LAMP RIGHT REAR DRIVE LOCK PAWL SWITCH RIGHT REAR FOOTWELL RIGHT REAR SAFETY LIMIT SWITCH RIGHT REAR ROTARY TUMBLER SWITCH RIGHT XENON HEADLAMP CONTROL MODULE SPIEGEL L SPIEGEL R STOWAGE COMPARTMENT ILLUMINATION W/ POWER CLOSING W/O AMBIANCE ILLUMINATION

BLK WIRE BLK/GRY WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLUE LIGHT SEPARATION POINT BRN WIRE BRN/BLK WIRE BRN/WHT WIRE FRESH AIR SYSTEM EMERGENCY ACTIVE BUTTON GRN WIRE GRN/RED WIRE GRY/BLU WIRE LEFT KNEE BOLSTER EMERGENCY ALARM ACTIVE BUTTON LEFT REAR FOOTWELL MICROPHONE SEPARATION POINT NCA WIRE ORG/ WIRE OVER VOLTAGE PROTECTION DIODE POLICE BEACON SEPARATION POINT REAR FRESH AIR OUTLET EMERGENCY ALARM ACTIVE BUTTON RED WIRE RED/WHT WIRE RIGHT KNEE BOLSTER EMERGENCY ALARM ACTIVE BUTTON SPECIAL SIGNAL SYSTEM PUSH BUTTON CONTROL MODULE SPECIAL VEHICLE MULTI-FUNCTION CONTROL MODULE (SVMCM (MSS)) WHT WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

BLK WIRE BLU WIRE BRN WIRE BRN/RED WIRE BRN/VIO WIRE CAN B H CAN B L COMPUTER DATA LINES SYSTEM FUSE 102 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/PNK WIRE GRN/RED WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE HOT AT ALL TIMES LEFT INSTRUMENT PANEL FUSE BOX (UNDER LEFT SIDE DASH COVER) ORG/ WIRE RED WIRE RED/BLU WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RIGHT FRONT BACKREST ANGLE ADJUSTMENT MOTOR RIGHT FRONT HEAD RESTRAINT MOTOR RIGHT FRONT SEAT BELT COMFORT SOLENOID RIGHT FRONT SEAT CONTROL MODULE RIGHT FRONT SEAT CUSHION FORWARD/BACK MOTOR (UNDER RIGHT FRONT SEAT) RIGHT FRONT SEAT CUSHION INCLINATION MOTOR (IN RIGHT SEAT CUSHION) RIGHT FRONT SEAT FORE/AFT ADJUSTMENT MOTOR (UNDER RIGHT REAR SEAT) RIGHT FRONT SEAT HEIGHT ADJUSTMENT MOTOR SEATS SYSTEM WHT WIRE YEL WIRE YEL/RED 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

1 2 3 4 5 6 HS-UB 1 2 3 4 CAN-B L CAN-B H 31 30 1 2 4 3 CAN-B L CAN-B H 30 31 4 3 2 1 DATA UB 31 31 4 5 6 3 2 1 MOTOR MOTOR HS (-) HS 1 HS 2 HS-UB 4 5 6 3 2 HS-UB 31 FH-MOT+ HS 2 HS 1 (OR PNK) WIRE BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLU WIRE BRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM 4 3 FH-MOT+ FH-TIEF HF-HOCH 31 UB DATA FRONT PASSENGER POWER WINDOW SWITCH FUSE 70 FUSE 82 GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRY WIRE GRY/WHT WIRE HOT AT ALL TIMES HS MOTOR + MOTOR + 31 LEFT REAR POWER WINDOW, SIDE WINDOW ROLLER BLIND SWITCH NCA WIRE PNK W/ SPECIAL PROTECTION WIRE PNK WIRE PNK/GRY WIRE PNK/WHT WIRE REAR INDIVIDUAL POWER WINDOW SWITCH REAR SIDE ROLLER BLIND/ROOF ROLLER BLIND/REAR ROLLER BLIND REAR WINDOW ROLLER BLIND SWITCH RED WIRE RED/BLU WIRE RIGHT FRONT DOOR CONTROL MODULE (IN RIGHT FRONT DOOR) RIGHT FRONT HYDRAULIC WINDOW LIFTER FUSE RIGHT FRONT HYDRAULIC WINDOW LIFTER PRESSURE SWITCH RIGHT FRONT WINDOW CLOSED HYDRAULIC WINDOW LIFTER LIMIT SWITCH RIGHT FRONT WINDOW CLOSED HYDRAULIC WINDOW LIFTER REDUNDANCY LIMIT SWITCH RIGHT INSTRUMENT PANEL FUSE BOX (UNDER RIGHT SIDE DASH COVER) RIGHT REAR DOOR CONTROL MODULE (IN RIGHT REAR DOOR) RIGHT REAR HYDRAULIC WINDOW LIFTER FUSE RIGHT REAR HYDRAULIC WINDOW LIFTER PRESSURE SWITCH RIGHT REAR POWER WINDOW MOTOR (IN RIGHT REAR DOOR) RIGHT REAR POWER WINDOW SWITCH RIGHT REAR SIDE ROLLER BLIND MOTOR (IN RIGHT REAR DOOR) RIGHT REAR WINDOW CLOSED HYDRAULIC WINDOW LIFTER LIMIT SWITCH RIGHT REAR WINDOW CLOSED HYDRAULIC WINDOW LIFTER REDUNDANCY LIMIT SWITCH VIO WIRE VIO/GRN WIRE W/ SPECIAL PROTECTION W/ TOP PROTECTION W/O TOP PROTECTION W/O SPECIAL PROTECTION WHT GRY/ WIRE WHT PNK/ WIRE WHT WIRE YEL WIRE

1 2 CAN-C L CAN-C H 27 31 41 54 HR 6 5 CAN-E L CAN-E H BATTERY SENSOR (RIGHT FRONT OF TRUNK) BLK WIRE BLK/BRN WIRE BLU WIRE BLU/WHT WIRE BRN WIRE CAN C L CAN C H CAN E H CAN E L CIRCUIT 15 TIME DELAY RELAY COMPUTER DATA LINES SYSTEM EIS (EZS) CONTROL UNIT ELECTRIC CONTROL UNIT (VGS) EMERGENCY START AID FUSE EMERGENCY START PUSH BUTTON ENGINE CIRCUIT 87 RELAY ENGINE COMPARTMENT PREFUSE BOX (RIGHT REAR ENGINE COMPT) FRONT SAM CONTROL MODULE W/ FUSE, RELAY MODULE (LEFT REAR ENGINE COMPT) FUSE FUSE 21 GRN WIRE GRN/WHT WIRE GRY/YEL WIRE INTELLIGENT SERVO MODULE FOR DIRECT SELECT INTERIOR PREFUSE BOX (RIGHT FRONT FOOTWELL) ME-SFI (ME) CONTROL UNIT ON-BOARD ELECTRICAL SYSTEM BATTERY POWER WINDOW OVERVOLTAGE PROTECTION DIODE RED WIRE RED/YEL WIRE SOLID STATE SPECIAL VEHICLE MULTIFUNCTION CONTROL MODULE (SVMCM (MSS)) STARTER STARTER CIRCUIT 15 RELAY STARTER CIRCUIT 50 RELAY STARTER RELAY TRANSMISSION HOUSING) VIO/WHT WIRE