BMW 3 series E46 (1998-2003) hot at all times 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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 SOLAR SENS SIG A/C PRESS SENS 1 2 3 4 5 6 INTERIOR LIGHTS SIG IGN RUN/ST REAR DEFOGGER SIG WATER VALVE SIG 1 2 3 VENT FLAP MTR VENT FLAP MTR VENT FLAP MTR A/C PRESS SENS K-BUS SIG BATT A/C PRESS SENS POLLUTANT SENS BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLOWER MOTOR (FRONT OF AIR CONDITIONING UNIT) BLOWER OUTPUT STAGE (LEFT SIDE OF RIGHT FOOTWELL) BLU WIRE BLU/BRN WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE DEFOGGER SYSTEM DEFROSTER FLAP MOTOR EVAPORATOR TEMPERATURE SENSOR (RIGHT SIDE OF LEFT FOOTWELL) FOOTWELL FLAP MOTOR FUSE 28 FUSE 50 FUSE 62 FUSE HOLDER (GLOVE BOX) GND GND POLLUTANT SENS POLLUTANT SENS SOLAR SENS SIG POLLUTANT SENS GRN/YEL WIRE GRY/RED WIRE HEATED EXCHANGER SENSOR (BEHIND CENTER CONSOLE) HEATING, A/C CONTROL MODULE (CENTER CONSOLE) HOT AT ALL TIMES HOT IN RUN, START LEFT FRESH AIR/ RECIRCULATED AIR FLAP MOTOR NCA WIRE POLLUTANT SENSOR (FRONT OF ENG COMPT) PRESSURE SENSOR, AIR CONDITIONING SYSTEM (RIGHT FRONT WHEELWELL) RED WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO/YEL WIRE RIGHT FRESH AIR/ RECIRCULATED AIR FLAP MOTOR SOLAR SENSOR (CENTER TOP OF DASH) VENTILATION FLAP MOTOR VOLT SUPPLY A/C SENS GND EVAPORATOR TEMP A/C SENS GND HEATED EXCHANGER WATER VALVES (LEFT SIDE OF ENG COMPT) WHT/RED/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE

2001-02 ALL MODELS, 2003-05 SEDAN, WAGON 2003-05 COUPE, CONVERTIBLE A/C COMPRESSOR RELAY (IN FRONT PWR DIST BOX) BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BUS SIG CAN CAN BUS BUS HI COMPUTER DATA LINES SYSTEM COOLANT OUTLET TEMPERATURE SENSOR DIGITAL MOTOR ELECTRONIC CONTROL UNIT (LEFT REAR OF ENG COMPT) ELECTRIC FAN (FRONT OF ENG COMPT) FUSE 3 FUSE 34 FUSE 37 FUSE 63 FUSE 9 FUSE HOLDER (GLOVE BOX) GND LO GRN WIRE GRN/BLU WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACCY, RUN, START HOT IN RUN, START HOT W/ DME RLY ENERGIZED IGN INSTRUMENT CLUSTER CONTROL MODULE (IN INSTRUMENT PANEL) NCA WIRE OUTSIDE TEMP GND OUTSIDE TEMP SIG RED WIRE RED/BLU WIRE RED/VIO/YEL WIRE RED/WHT WIRE RIGHT BUTTON PAD (IN STEERING WHEEL) SOLENOID CLUTCH (LEFT SIDE OF RIGHT FOOTWELL) TEMPERATURE SENSOR (UNDER FRONT LEFT OF VEHICLE) UNDER FENDER) VIO/YEL WIRE VOLUTE SPRING WHT WIRE WHT/RED WIRE WHT/RED/YEL WIRE YEL WIRE YEL/BRN 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

2001 MODELS 2002-04 MODELS BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRN/BLK WIRE CLUTCH SWITCH MODULE (ON CLUTCH PEDAL) COMPUTER DATA LINES SYSTEM DIGITAL MOTOR ELECTRONIC CONTROL UNIT (LEFT REAR ENG COMPT) E-BOX FAN (LEFT SIDE OF LEFT FRONT FOOTWELL) ELECTRONIC IMMOBILIZER CONTROL UNIT (UNDER LEFT SIDE EWS TOROIDAL COIL FUSE FUSE HOLDER (GLOVE BOX) GEARSHIFT LOCK GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACCY, RUN, START IGNITION SWITCH INSTRUMENT CLUSTER CONTROL MODULE LOCK OF DASH) RED WIRE RED/BLK WIRE RED/BLU WIRE RUN WIRE SMG CONTROL MODULE (LEFT REAR OF ENG COMPT) SMG ONLY STARTER STARTING/ CHARGING SYSTEM TRANS SW SIG TRANSMISSION CONTROL UNIT (LEFT REAR ENG COMPT) VIO/WHT WIRE VIO/YEL WIRE W/ SMG TRANS W/O SMG TRANS WHT/RED/YEL WIRE YEL WIRE

10 7 GND CENTERLOCK BUTTON SIG 25 26 FRONT PASSENGER DOOR CONTACT SIG DRIVER DOOR'S CONTACT SIG 42 47 TRUNK LID CONTACT SWITCH BATTERY BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRY/YEL WIRE CONTROL MODULE, INTERIOR PROTECTION I (UNDER CENTER CONSOLE) CONTROL MODULE, INTERIOR PROTECTION II (REAR CENTER CONSOLE) ELECTROCHROMATIC INTERIOR REARVIEW MIRROR FUSE FUSE HOLDER (GLOVE BOX) GENERAL MODULE CONTROL UNIT (BEHIND GLOVE BOX) GRY/BLK/YEL WIRE GRY/BRN WIRE HORN FOR ANTI-THEFT ALARM SYSTEM (REAR ENG COMPT) HOT AT ALL TIMES RED WIRE RED/BLK WIRE RED/VIO WIRE TILT MONITORING (RIGHT SIDE OF LUGGAGE COMPT) TIRE PRESSURE CONTROL SYSTEM CONTROL UNIT (BEHIND GLOVE BOX) UNLOCK DRIVER'S SIG VIO WIRE VIO/GRN WIRE VIO/WHT WIRE

10 7 GND CENTERLOCK BUTTON SIG 42 47 TRUNK LID CONTACT SWITCH BATTERY BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/GRY/YEL WIRE CONTROL MODULE, INTERIOR PROTECTION I (UNDER CENTER CONSOLE) ELECTROCHROMATIC INTERIOR REARVIEW MIRROR FUSE FUSE HOLDER (GLOVE BOX) GENERAL MODULE CONTROL UNIT (BEHIND GLOVE BOX) GRY/BLK/YEL WIRE GRY/BRN WIRE HORN FOR ANTI-THEFT ALARM SYSTEM (REAR ENG COMPT) HOT AT ALL TIMES RED WIRE RED/BLK WIRE RED/VIO WIRE TILT MONITORING (RIGHT SIDE OF LUGGAGE COMPT) TIRE PRESSURE CONTROL SYSTEM CONTROL UNIT (BEHIND GLOVE BOX) VIO WIRE VIO/GRN WIRE VIO/WHT WIRE

1 2 3 4 5 6 INTERIOR LIGHTS SIG IGN RUN/ST REAR DEFOGGER SIG WATER VALVE SIG 1 2 3 VENT FLAP MTR VENT FLAP MTR VENT FLAP MTR A/C PRESS SENS A/C PRESS SENS K-BUS SIG BATT A/C PRESS SENS AIR DISTRIBUTION MOTOR BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLOWER MOTOR (FRONT OF AIR CONDITIONING UNIT) BLOWER OUTPUT STAGE (LEFT SIDE OF RIGHT FOOTWELL) BLU/BRN WIRE BLU/RED WIRE BRN BLK/ WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE DEFOGGER SYSTEM EVAPORATOR TEMPERATURE SENSOR (RIGHT SIDE OF LEFT FOOTWELL) FUSE 28 FUSE 50 FUSE 62 FUSE HOLDER (GLOVE BOX) GND GND GRN/YEL WIRE GRY/RED WIRE HEATED EXCHANGER SENSOR (BEHIND CENTER CONSOLE) HEATING, A/C CONTROL MODULE (CENTER CONSOLE) HOT AT ALL TIMES HOT IN RUN, START LEFT FRESH AIR/ RECIRCULATED AIR FLAP MOTOR NCA WIRE PRESSURE SENSOR, AIR CONDITIONING SYSTEM (RIGHT FRONT WHEELWELL) RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO/YEL WIRE RIGHT FRESH AIR/ RECIRCULATED AIR FLAP MOTOR VOLT SUPPLY A/C SENS GND EVAPORATOR TEMP A/C SENS GND HEATED EXCHANGER WATER VALVE (LEFT SIDE OF ENG COMPT) WHT/RED/YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

2001-02 ALL MODELS, 2003-05 SEDAN, WAGON 2003-05 COUPE, CONVERTIBLE A/C COMPRESSOR RELAY (IN FRONT PWR DIST BOX) BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BUS SIG CAN CAN BUS BUS HI COMPUTER DATA LINES SYSTEM COOLANT OUTLET TEMPERATURE SENSOR DIGITAL MOTOR ELECTRONIC CONTROL UNIT (LEFT REAR OF ENG COMPT) ELECTRIC FAN (FRONT OF ENG COMPT) FUSE 3 FUSE 34 FUSE 37 FUSE 63 FUSE 9 FUSE HOLDER (GLOVE BOX) GND LO GRN WIRE GRN/BLU WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACCY, RUN, START HOT IN RUN, START HOT W/ DME RLY ENERGIZED IGN INSTRUMENT CLUSTER CONTROL MODULE (IN INSTRUMENT PANEL) NCA WIRE OUTSIDE TEMP GND OUTSIDE TEMP SIG RED WIRE RED/BLU WIRE RED/VIO/YEL WIRE RED/WHT WIRE RIGHT BUTTON PAD (IN STEERING WHEEL) SOLENOID CLUTCH (LEFT SIDE OF RIGHT FOOTWELL) TEMPERATURE SENSOR (UNDER FRONT LEFT OF VEHICLE) UNDER FENDER) VIO/YEL WIRE VOLUTE SPRING WHT WIRE WHT/RED WIRE WHT/RED/YEL WIRE YEL WIRE YEL/BRN WIRE YEL/RED WIRE