BMW 3 series E46 (1998-2003) switch center Wiring diagrams

30 RF WHL SPD RF WHL SPD ABS/ASC UNIT (LEFT REAR OF ENGINE COMPT) ASC SWITCH BLU WIRE BLU/RED WIRE BLU/VIO WIRE BRAKE FLUID LEVEL SWITCH BRAKELIGHT SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) BRN WIRE BRN/BLK WIRE BRN/GRN/YEL WIRE BRN/RED WIRE CAN LOW GROUND DIGITAL MOTOR ELECTRONICS CONTROL UNIT FUSE FUSE HOLDER (GLOVE BOX) GRN WIRE GRN/BLU WIRE GRN/BLU/YEL WIRE GRY/BLK/YEL WIRE HOT AT ALL TIMES HOT IN RUN OR START HOT IN RUN, ACCY OR START INSTRUMENT CLUSTER CONTROL MODULE LEFT FRONT SPEED SENSOR (WHEEL HUB) LEFT REAR SPEED SENSOR (WHEEL HUB) LR WHL SPD LR WHL SPD MIRROR FOLD-IN CONTROL UNIT NAVIGATION COMPUTER NCA WIRE RED WIRE RED/BLU WIRE RED/YEL WIRE RIGHT FRONT SPEED SENSOR (WHEEL HUB) RIGHT REAR SPEED SENSOR (WHEEL HUB) RR WHL OUT BRAKE FLUID LR SPD OUT CAN HIGH SWITCH CENTER VIO WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE

30 RF WHL SPD RF WHL SPD ABS/DSC UNIT (RIGHT REAR OF ENGINE COMPT) BLK WIRE BLK/RED/WHT WIRE BLK/VIO WIRE BLK/VIO/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BLK/YEL WIRE BLU/BRN/YEL WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT/YEL WIRE BRAKE FLUID LEVEL SWITCH BRAKELIGHT SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) BRN WIRE BRN/BLK WIRE BRN/BLK/WHT WIRE BRN/GRN/YEL WIRE BRN/RED WIRE CAN LOW GROUND DIGITAL MOTOR ELECTRONICS CONTROL UNIT (LEFT REAR OF ENGINE COMPT) DSC SWITCH FUSE FUSE HOLDER (GLOVE BOX) GRN WIRE GRN/BLU WIRE GRN/BLU/YEL WIRE GRY/BLK/YEL WIRE HOT AT ALL TIMES HOT IN RUN OR START HOT IN RUN, ACCY OR START INSTRUMENT CLUSTER CONTROL MODULE LATERAL SENS LEFT FRONT SPEED SENSOR (WHEEL HUB) LEFT REAR SPEED SENSOR (WHEEL HUB) LR WHL SPD LR WHL SPD MIRROR FOLD-IN CONTROL UNIT NAVIGATION COMPUTER NCA WIRE PRESSURE SENSOR 1 PRESSURE SENSOR 2 PARK BRAKE SWITCH RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE RIGHT REAR SPEED SENSOR (WHEEL HUB) RPM RATE SENSOR (UNDER DRIVER'S SEAT) RIGHT FRONT SPEED SENSOR (WHEEL HUB) RR WHL OUT BRAKE FLUID LR SPD OUT CAN HIGH SENSOR + PARK BRAKE STEERING ANGLE SENSOR (IN COLUMN) SWITCH CENTER TRANSVERSE ACCELERATION SENSOR (UNDER LEFT SIDE OF DASH) VIO WIRE WHT/BLU WIRE WHT/BLU/YEL WIRE WHT/GRN WIRE WHT/RED/YEL WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE

17 32 37 36 RPM SIG DIAG TXD CAN (-) CAN (+) 2 15 DIAG TXD CAN (-) CAN (+) 25 10 9 14 DIAG TXD CAN (-) CAN (+) K-BUS 6 3 4 DIAG TXD CAN (-) CAN (+) 6 4 3 DIAG TXD CAN (-) CAN (+) 8 16 DIAG TXD CAN (-) CAN (+) ABS/DSC UNIT ABS/DSC UNIT (AWD) BLK WIRE BRN WIRE BRN/BLK WIRE CAN (+) DIAG TXD DIAG TXD CAN (-) CAN (+) 40 24 DIGITAL MOTOR ELECTRONICS DRIVER SEAT MEMORY CONTROL UNIT DRIVER SIDE MIRROR MEMORY CONTROL DSC STEERING ANGLE SENSOR ELECTRONIC IMMOBILIZER CONTROL UNIT FUSE FUSE HOLDER (GLOVE COMPT) GENERAL MODULE CONTROL UNIT GRN WIRE GRN/BRN WIRE HEATING, A/C CONTROL MODULE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER K- BUS LEFT XENON HEADLIGHT (W/ XENON LIGHTS) LIGHT SWITCHING CENTER CONTROL UNIT MULTIPLE RESTRAINT SYSTEM CONTROL UNIT NCA WIRE OBD SOCKET (LEFT FOOTWELL) PARK DISTANCE CONTROL UNIT RAIN SENSOR CONTROL UNIT RED WIRE RED/YEL/WHT WIRE RIGHT XENON HEADLIGHT (W/ XENON LIGHTS) ROLLOVER SENSOR (CONVERTIBLE) STEERING ANGLE SENSOR SUNROOF MODULE CONTROL UNIT SWITCH CENTER TIRE PRESSURE SYSTEM CONTROL UNIT TRANSMISSION CONTROL UNIT UNIT) VOLUTE SPRING W/O TEL TELEPHONE PROVISIONS WHT WIRE WHT/RED/YEL WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE YEL/RED WIRE

1 2 3 4 LOCK/UNLOCK CONV TOP SIG GND FUSE 46, BATT LOCK/UNLOCK CONV TOP SIG BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/RED WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CONVERTIBLE SOFT TOP CONTROL MODULE (LEFT REAR PASSENGER COMPT) DEFOGGER SYSTEM EMERGENCY RELEASE ACT. VALVE FUSE FUSE HOLDER (GLOVE BOX) GRN/WHT WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN RUN, ACCY AND START INSTRUMENT CLUSTER CONTROL MODULE LIGHT SWITCHING CENTER CONTROL UNIT (LEFT SIDE OF INSTRUMENT PANEL) NCA WIRE POSITION SWITCH, MAIN PILLAR (LEFT REAR CONVERTIBLE LINKAGE) POSITION SWITCH, TENSIONING BOW (LEFT REAR CONVERTIBLE LINKAGE) RED WIRE RED/GRY WIRE RED/VIO WIRE SWITCH CENTER SWITCH, COWL LOCKED (IN CONVERTIBLE TOP COWL LEFT) SWITCH, VALVE, COWL EXTEND MAIN PILLAR (IN CONVERTIBLE TOP COWL LEFT) VALVE, EXTEND TENSIONING BOW VALVE, RETRACT TENSIONING BOW VIO WIRE VIO/BLU WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE WHT/RED/YEL WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

BLU WIRE BRN WIRE BRN/BLK WIRE DRIVER'S BACKREST HEATER DRIVER'S SEAT HEATER FUSE FUSE HOLDER (GLOVE BOX) GRN/VIO WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN START, RUN OR ACC INSTRUMENT CLUSTER CONTROL MODULE PASSENGER'S BACKREST HEATER PASSENGER'S BACKREST HEATER RED WIRE RED/VIO WIRE SWITCH CENTER VIO WIRE VIO/BLU WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED/YEL WIRE YEL WIRE

2 6 (A/T) (SMG) BLK WIRE BLU WIRE BRN WIRE COURTESY LAMPS CIRCUIT DRIVER'S DOOR SWITCH BLOCK EJECT BOX FRONT CIGAR LIGHTER LIGHT FRONT INTERIOR/ READING LAMP FUSE FUSE HOLDER (GLOVE BOX) GEAR INDICATOR LIGHT GRN WIRE GRY WIRE HAZARD WARNING/ CENTRAL LOCKING SWITCH HEATING, A/C CONTROL MODULE HOT AT ALL TIMES HOT IN RUN AND START INSTRUMENT CLUSTER CONTROL MODULE LIGHT SWITCHING CENTER CONTROL UNIT MAYDAY SWITCH NCA WIRE ON-BOARD MONITOR CONTROL UNIT PASSENGER'S DOOR POWER WINDOW SWITCH PROGRAM BUTTON (SMG) RADIO CONTROL UNIT REAR ASHTRAY LIGHT RED WIRE SIG LOC LGHT SUNROOF CONTROL SWITCH SUNROOF MODULE CONTROL UNIT SWITCH CENTER TERM TERM 15 TERM 30 TRUNK RELEASE SWITCH (INTERIOR) VIO WIRE W/ ON-BOARD MONITOR W/O ON-BOARD MONITOR YEL WIRE

12 VOLT SOCKET (WAGON) ABS/DSC UNIT (AWD) BATTERY BLK WIRE BLU WIRE BRN WIRE CONVERTIBLE TOP DRIVE RELAY CONVERTIBLE TOP RELAY 1 DIAGNOSTIC PLUG ELECTRIC FAN FOG LIGHT RELAY FROM FRONT CIGAR LIGHTER FUSE FUSE 108 FUSE HOLDER (GLOVE BOX) GEAR DSC INDICATOR STEERING LIGHT ANGLE SENSOR GENERATOR GRN WIRE GRY WIRE INSTRUMENT CLUSTER CONTROL MODULE LEFT ODDMENTS COMPARTMENT (EXCEPT WAGON) LIGHT SWITCHING CENTER CONTROL UNIT NCA WIRE OBD TRAILER SOCKET SOCKET REAR INTERMITTENT WIPE/WASH CONTROL UNIT (WAGON) RED WIRE RIGHT ODDMENTS COMPARTMENT (EXCEPT WAGON) SECONDARY AIR INJECTION PUMP RELAY STARTER SUNROOF CONVERTIBLE MODULE SOFT TOP CONTROL CONTROL UNIT MODULE SWITCH CENTER TO B+ POTENTIAL DISTRIBUTOR (DIAGRAM 2 OF 6) TO FUSE TO IGNITION SWITCH (DIAGRAM 5 OF 6) VIO WIRE W/ FRONT BATTERY W/ REAR BATTERY WHT WIRE YEL WIRE

A/T ABS/ASC UNIT ADAPTIVE SWITCH CENTER HEADLIGHT CONTROL UNIT (IF EQUIPPED) AUXILIARY WATER PUMP BLK WIRE BLU WIRE BLU/YEL WIRE BRN WIRE DIGITAL MOTOR OIL LEVEL ELECTRONICS SENSOR CONTROL UNIT DUAL FUNCTION SWITCH RECIRCULATED AIR/REAR WINDOW DEFOGGER ELECTROCHROMIC PARK INTERIOR REAR DISTANCE VIEW MIRROR CONTROL UNIT ELECTRONIC IMMOBLIZER CONTROL UNIT FROM FROM FUSE FUSE FUSE (DIAGRAM 5 OF 6) FUSE FUSE FUSE HOLDER (GLOVE BOX) GARAGE REVERSING DOOR LIGHT OPENER RELAY GENERATOR GRN WIRE HEATED SPRAY NOZZLES THERMAL SWITCH HEATING, A/C CONTROL MODULE IGNITION SWITCH INSTRUMENT CLUSTER CONTROL MODULE KEY-IN SWITCH M/T MIRROR ADJUSTMENT SWITCH NCA WIRE OBD SOCKET OFF PASSENGER'S SIDE OUTSIDE MIRROR PROGRAM BUTTON REAR WINDOW DEFOGGER RELAY (CONVERTIBLE) RED WIRE REVERSING LIGHT SWITCH RUN WIRE STEERING ANGLE SENSOR (W/O AWD) ABS/DSC UNIT SWITCH CENTER TEMPERATURE SWITCH TIRE LIGHT SWITCHING PRESSURE CENTER CONTROL CONTROL SYSTEM UNIT CONTROL UNIT TO FUSE TRANSMISSION CONTROL UNIT VIO WIRE W/ ASC W/ DSC W/ HEATER CONTROL W/O HEATER CONTROL WHT WIRE YEL WIRE

ANTENNA AMPLIFIER (IF EQUIPPED) BLK WIRE BLU WIRE BRAKE LIGHT SWITCH CLUTCH SWITCH MODULE CONVERTIBLE SOFT TOP CLOSED PUSHBUTTON (IF EQUIPPED) CONVERTIBLE SOFT TOP CONTROL MODULE DRIVER'S SEAT BELT BUCKLE HALL SENSOR DRIVER'S SIDE MAKE-UP MIRROR LIGHT ELECTRONIC IMMOBILIZER CONTROL UNIT FROM FROM IGNITION SWITCH (DIAGRAM 5 OF 6) FUSE FUSE FUSE FUSE HOLDER (GLOVE BOX) GEARSHIFT LOCK GENERAL MODULE CONTROL UNIT GPS RECEIVER (IF EQUIPPED) GRN WIRE GRY WIRE HORN RELAY INSTRUMENT CLUSTER CONTROL MODULE LEFT SIDE AIRBAG SENSOR (SATELLITE) (IF EQUIPPED) LIGHT SWITCHING CENTER CONTROL UNIT MULTIPLE RESTRAINT SYSTEM CONTROL UNIT NCA WIRE ON-BOARD MONITOR CONTROL UNIT (IF EQUIPPED) PASSENGER'S SEAT BELT BUCKLE HALL SENSOR PASSENGER'S SIDE MAKE-UP MIRROR LIGHT RADIO CONTROL UNIT RAIN SENSOR REAR INTERMITTENT WIPE/WASH CONTROL UNIT (WAGON) RIGHT SIDE AIRBAG SENSOR (SATELLITE) (IF EQUIPPED) ROLLOVER SENSOR SEAT LOAD SENSOR SWITCH CENTER TO FUSE VIO WIRE VOLUTE SPRING WHT WIRE YEL WIRE

ANTENNA AMPLIFIER ANTENNA AMPLIFIER W/ ROD ANTENNA BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/ORG WIRE CD CHANGER CELLULAR PHONE (W/ VOICE INPUT) COUPE, SEDAN (LEFT SIDE OF RIGHT FOOTWELL) EXCEPT CONVERTIBLE FUSE FUSE HOLDER (GLOVE BOX) GRN WIRE HOT AT ALL TIMES HOT IN RUN, ACC OR START INSTRUMENT CLUSTER CONTROL MODULE ON-BOARD MONITOR CONTROL MODULE K- BUS NAVIGATION COMPUTER (IF EQUIPPED) NCA WIRE RADIO CONTROL UNIT REAR DEFROSTER RELAY REAR WINDOW RED WIRE RED/GRN WIRE SPATIAL SOUND SWITCH SPEED SWITCH CENTER TELEPHONE PROVISION VIDEO MODULE CONTROL UNIT (IF EQUIPPED) VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/RED WIRE WHT/RED/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/RED WIRE