BMW 3 series E90/E91/E92/E93 facelift (2008-2013) (under left side of dash) Wiring diagrams

BACKREST BRN WIRE DRIVER'S SEAT ADJUSTMENT SWITCH DRIVER'S SEAT FORWARD/ BACKWARD ADJUSTMENT DRIVE UNIT (UNDER DRIVER SEAT) DRIVER'S SIDE BACKREST ANGLE ADJUSTMENT MOTOR (UNDER DRIVER SEAT) FUSE 45 FWD/BWD GRN WIRE JUNCTION BOX (UNDER RIGHT SIDE OF DASH) NCA WIRE RED WIRE RELAY ENERGIZED VIO WIRE WHT WIRE YEL WIRE

BLU WIRE BRN WIRE CENTER CONSOLE SWITCH CENTER COMPUTER DATA LINES SYSTEM DRIVER'S SEAT BACKREST HEATING ELEMENT (IN DRIVER SEAT BACK) DRIVER'S SEAT CUSHION HEATING (IN DRIVER SEAT CUSHION) DRIVERS SEAT MODULE (UNDER DRIVER SEAT) ELECTRONICS JUNCTION BOX FUSE 45 FUSE 46 GRN WIRE HEATING/ AIR CONDITIONING JUNCTION BOX (UNDER RIGHT SIDE OF DASH) NCA WIRE ORG/ WIRE ORG/GRN WIRE PASSENGER'S SEAT BACKREST HEATING ELEMENT (IN PASSENGER SEAT BACK) PASSENGER'S SEAT CUSHION HEATING (IN PASSENGER SEAT CUSHION) PASSENGER'S SEAT MODULE RED WIRE RED/BRN WIRE RED/YEL WIRE RELAY ENERGIZED RELAY ENERGIZED FUSE 77 SYSTEM (CENTER OF DASH, ABOVE RADIO) WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE

BLU WIRE BLU/VIO WIRE BRN WIRE CENTER CONSOLE SWITCH CENTER DRIVER'S SEAT BACKREST HEATING (IN DRIVER SEAT BACK) DRIVER'S SEAT CUSHION HEATING (IN DRIVER SEAT CUSHION) DRIVER'S SEAT HEATING MODULE (UNDER DRIVER SEAT) FUSE 10 FUSE 3 FUSE 68 JUNCTION BOX ELECTRONICS GRN WIRE GRN/RED WIRE HEATING/ AIR CONDITIONING SYSTEM (CENTER OF DASH, ABOVE RADIO) HOT AT ALL TIMES HOT W/ TERMINAL 15 RELAY ENERGIZED JUNCTION BOX (UNDER RIGHT SIDE OF DASH) NCA WIRE PASSENGER'S SEAT BACKREST HEATING (IN PASSENGER SEAT BACK) PASSENGER'S SEAT CUSHION HEATING (IN PASSENGER SEAT CUSHION) PASSENGER'S SEAT HEATING MODULE (UNDER FRONT PASSENGER'S SEAT) RED WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RELAY ENERGIZED FUSE 77 VIO WIRE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE

BLK WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE DRIVER'S LUMBAR SUPPORT SWITCH DRIVER'S LUMBAR SUPPORT VALVE BLOCK (LEFT SIDE OF DRIVER SEAT BACK) DRIVER'S PUMP SEAT VACUUM (RIGTH SIDE OF DRIVER SEAT BACK) FUSE 20 BOX (UNDER RIGHT SIDE OF DASH) GRY WIRE GRY/BLK WIRE JUNCTION PASSENGER'S LUMBAR SUPPORT SWITCH PASSENGER'S LUMBAR SUPPORT VALVE BLOCK (RIGHT SIDE OF PASSENGER SEAT BACK) PASSENGER'S SEAT VACUUM PUMP (LEFT SIDE OF PASSENGER SEAT BACK) RED WIRE RED/BLK WIRE RELAY ENERGIZED SPORT SEAT CIRCUIT VIO WIRE

BLK WIRE BLK/RED WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CENTER ROOF FUNCTION CONTROL CENTRAL LOCKING DRIVE FUEL FILLER FLAP CENTRAL LOCKING DRIVE ODDMENTS COMPARTMENT (CONVERTIBLE) COUPE, SEDAN, WAGON DRIVER'S REAR SIDE SYSTEM LOCK (SEDAN) (LEFT REAR DOOR) GRN WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE HOT AT ALL TIMES FUSE 54 JUNCTION BOX (UNDER RIGHT SIDE OF DASH) ORG/GRN WIRE PASSENGER'S REAR SIDE SYSTEM LOCK (SEDAN) (RIGHT REAR DOOR) REAR LID RELEASE SWITCH (INTERIOR) REAR WINDOW BUTTON REAR WINDOW LOCK (WAGON) RED/BLK WIRE RED/BRN WIRE SIREN, TILT ALARM SENSOR WAVE TRAP (WAGON) WHT WIRE

ANTI- THEFT ALARM LED BLK/RED WIRE BOOT LID CENTRAL LOCKING DRIVE (CONVERTIBLE) BOOT LID CENTRAL LOCKING DRIVE (COUPE, SEDAN) BRN WIRE COMPUTER DATA LINES SYSTEM COUPE, SEDAN COUPE, SEDAN, SEDAN COUPE, SEDAN, WAGON DRIVER'S DOOR MICROWAVE SENSOR ELECTROCHROMIC INTERIOR REAR VIEW MIRROR GRN WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES FUSE 62 HOT AT ALL TIMES FUSE 63 JUNCTION BOX (UNDER RIGHT SIDE OF DASH) LEFT REAR LID LOCK SWITCH LEFT REAR MICROWAVE SENSOR ORG/GRN WIRE PASSENGER'S DOOR MICROWAVE SENSOR POWER DISTRIBUTION SYSTEM RED/BLK WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RIGHT REAR LID LOCK SWITCH (CONVERTIBLE) RIGHT REAR MICROWAVE SENSOR ROOF FUNCTION CONTROL CENTER WHT/BRN WIRE WHT/GRN WIRE

BLK WIRE BLU WIRE BRN WIRE DRIVER'S SIDE OUTSIDE MIRROR DRIVER'S SWITCH CLUSTER ELECTRONICS JUNCTION BOX FOOTWELL MODULE (UNDER LEFT SIDE OF DASH) FUSE 9 GRN WIRE GRY WIRE GRY/RED WIRE HEATING HORIZONTAL HOT W/ TERMINAL 15 RELAY ENERGIZED NCA WIRE PASSENGER'S SIDE OUTSIDE MIRROR RED WIRE VERTICAL WHT WIRE YEL WIRE

BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER'S SIDE OUTSIDE MIRROR DRIVER'S SWITCH CLUSTER FUSE 66 GRY WIRE GRY/RED WIRE JUNCTION BOX (UNDER RIGHT SIDE OF DASH) NCA WIRE PASSENGER'S SIDE OUTSIDE MIRROR RED WIRE RED/GRY WIRE RELAY ENERGIZED WHT WIRE

BLK WIRE BLK/GRN WIRE BLK/VIO WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/ORG WIRE BRN/RED WIRE BRN/VIO WIRE CAR ACCESS SYSTEM (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DRIVER'S SWITCH CLUSTER DRIVER'S WINDOW MOTOR (LEFT FRONT DOOR) FOOTWELL MODULE (UNDER LEFT SIDE OF DASH) GRN WIRE GRN/YEL WIRE GROUND TERM 30 SIGNAL SIGNAL GROUND TRANSDUCER 2 TRANSDUCER 2 TRANSDUCER 1 GRY WIRE GRY/BLU WIRE ORG/ WIRE ORG/GRN WIRE PASSENGER'S DOOR POWER WINDOW SWITCH PASSENGER'S WINDOW MOTOR (RIGHT FRONT DOOR) RED WIRE RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE TERMINAL 30 SIG LIN BUS K-BUS SIGNAL K-BUS SIGNAL GROUND 23 45 46 47 TRANSDUCER 1 TRANSDUCER GND TRANSDUCER GND VIO WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE

BLK WIRE BLU/BLK WIRE BRN WIRE DRIVER'S LUMBAR SUPPORT SWITCH DRIVER'S SEAT BACKREST WIDTH ADJUSTMENT SWITCH DRIVER'S SEAT VACUUM PUMP FUSE 20 GRY WIRE GRY/BLK WIRE GRY/GRN WIRE JUNCTION BOX (UNDER RIGHT SIDE OF DASH) PASSENGER'S LUMBAR SUPPORT SWITCH PASSENGER'S SEAT BACKREST WIDTH ADJUSTMENT SWITCH PASSENGER'S SEAT VACUUM PUMP (LEFT SIDE OF PASSENGER SEAT BACK) RED WIRE RED/BLK WIRE RELAY ENERGIZED