Mercedes-Benz C-class W204/S204/С204 facelift (2011-2015) driver seat control unit (under driver's seat) Wiring diagrams

1 2 3 4 5 6 HS(-) ML/K HS(+) ML+ HS(+) MK+ 1 2 CAN B L CAN B H 31 HS(+) HS(-) HS(+) 31 SIG MOT+ MOT- BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CONTROL UNIT (IN DRIVER FRONT SEAT BACK) DRIVER SEAT BACKREST INCLI- NATION ADJUST- MENT MOTOR (IN DRIVER'S SEAT BACK) DRIVER SEAT CONTROL UNIT (UNDER DRIVER'S SEAT) DRIVER SEAT EASY-ENTRY SYSTEM LIMIT SWITCH (IF EQUIPPED) DRIVER SEAT FORE/AFT ADJUSTMENT MOTOR (UNDER DRIVER'S SEAT) DRIVER SEAT HEAD RESTRAINT ADJUSTMENT MOTOR (IN DRIVER FRONT SEAT BACK) DRIVER SEAT HEIGHT ADJUSTMENT MOTOR (UNDER DRIVER'S SEAT) DRIVER SEAT INCLINATION ADJUSTMENT MOTOR (UNDER DRIVER'S SEAT) DRIVER SEAT LUMBAR SUPPORT DRIVER SEAT LUMBAR SUPPORT ADJUSTMENT DRIVER SEAT LUMBAR SUPPORT ADJUSTMENT SWITCH GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/VIO WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/YEL WIRE HV_MOT+ NV_MOT- NV_MOT+ LEFT FRONT SEAT ADJUSTMENT SWITCH GROUP (W/ FULLY ELECTRIC SEAT ADJUSTMENT) LV_MOT- LV_MOT+ HV_MOT- MLS H MLS V CAN-B L MLS CAN-B H RED WIRE RED/BLU WIRE RED/YEL WIRE STEERING COLUMN MEMORY CIRCUIT VIO WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

1 2 3 CAN-B H CAN-B L 31 1 2 CAN-B H CAN-B L 1.8L TURBO EXCEPT 1.8L TURBO 11 9 CAN-B H CAN-B L 12 6 CAN-A H CAN-A L 2 1 CAN-B H CAN-B L 3 4 2 3 CAN-B H CAN-B L 30 31 CAN-B H CAN-B L 7 5 CAN-B H CAN-B L 7 6 CAN-B H CAN-B L 7 8 CAN-B H CAN-B L 9 10 CAN-B L CAN-B H AUTOMATIC AIR CONDITIONING CONTROL, OPERATING UNIT (2, 3 ZONES THERMATIC) BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAN B H CAN B L CAN C H CAN C L CAN E H CAN E L CAN-B H CAN-B L CAN-C L CAN-C H CAN-E L CAN-E H CAN-D H CAN-D L CAN-G H CAN-G L CDI CONTROL MODULE (2.1L TURBO DIESEL) (LEFT SIDE OF ENGINE) COMMAND CONTROL UNIT DIAGNOSTIC CONNECTOR (DLC) (UNDER LEFT SIDE DASH) DRIVER SEAT CONTROL UNIT (UNDER DRIVER'S SEAT) EMERGENCY CALL SYSTEM CONTROL UNIT FRONT SAM CONTROL UNIT W/ FUSE, RELAY MODULE (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/WHT WIRE GRY WIRE GRY/WHT WIRE LEFT VEHICLE FLOOR INTERIOR CAN VOLTAGE DISTRIBUTOR ELECTRICAL CONNECTOR PANORAMIC SLIDING ROOF CONTROL MODULE (LEFT FRONT OF ROOF) PNK 3 4 WIRE PNK WIRE PNK/WHT WIRE RADIO 12 6 CAN-B H CAN-B L TRAILER RECOGNITION CONTROL MODULE (GLK-CLASS: RIGHT REAR CARGO AREA) W/ OVERHEAD CONTROL PANEL W/ CAN YEL WIRE YEL/WHT WIRE

1 2 COMPUTER DATA LINES SYSTEM CAN-B L CAN-B H 10 5 7 12 13 3 6 11 4 31 CAN-B L CAN-B H HS(-) HS(+) MLS H MLS HS(+) MLS V 2 1 CAN-E H CAN-E L BLU WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CRUISE RESUME CONTROL FROM LEVER MEMORY SWITCH DRIVER SEAT CONTROL UNIT (UNDER DRIVER'S SEAT) GRN WIRE GRN/WHT WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/YEL WIRE LEFT FRONT SEAT ADJUSTMENT SWITCH GROUP (W/ FULLY ELECTRIC SEAT ADJUSTMENT) RED/BLU WIRE RED/YEL WIRE STEERING COLUMN ADJUSTMENT SWITCH YEL/BLK WIRE YEL/BLU WIRE