BMW M3 E46 (1999-2006) obd socket (left footwell) Wiring diagrams

1 2 3 4 5 6 7 8 9 IGNITION BATTERY BLK WIRE BLK/BLU WIRE BLK/VIO WIRE BLU WIRE BLU/GRN WIRE BLU/RED WIRE BRAKELIGHT SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) BRN WIRE BRN/BLK WIRE CUT-OFF START SIG SHIFT LOCK SUPPLY BRAKE LIGHT FUSE FUSE HOLDER (GLOVE BOX) FUSE GEAR INDICATOR LIGHT GENERAL MODULE CONTROL UNIT (BEHIND GLOVE BOX) GRN WIRE GRN/BRN WIRE GRN/RED WIRE GROUND GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT AT ALL TIMES B+ POTENTIAL DISTRIBUTOR HOT IN ACC, RUN OR START HOT IN RUN OR START IGNITION SWITCH KEY-IN SWITCH IMMOBILIZER LIGHT SWITCHING CENTER CONTROL UNIT NCA WIRE OBD SOCKET (LEFT FOOTWELL) PROGRAM BUTTON RED WIRE RED/GRN WIRE RED/YEL WIRE SELECT LEVER SELECT LEVER PROGRAM SW PROGRAM SW SELECTOR LEVER ASG SEQUENTIAL MANUAL GEARBOX (SMG) CONTROL MODULE (LEFT REAR OF ENGINE COMPT) SHIFT LOCK SELECTOR LEVER LOCK (UNDER CENTER CONSOLE) VOLUTE SPRING ST WHL CTRLS SELECT LEVER SELECT LEVER SELECT LEVER ENG SPD SIG STEERING WHEEL SWITCHES VIO WIRE WHT WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

17 32 37 36 RPM SIG DIAG TXD CAN (-) CAN (+) 25 10 9 14 DIAG TXD CAN (-) CAN (+) K-BUS 3 4 6 CAN (-) CAN (+) DIAG TXD 32 36 37 DIAG TXD CAN (+) CAN (-) 6 4 DIAG TXD CAN (-) CAN (+) 8 16 DIAG TXD CAN (-) CAN (+) ABS/DSC UNIT ABS/DSC UNIT (AWD) BLK WIRE BRN WIRE BRN/BLK WIRE CONTROL UNIT) DIAG TXD DIAG TXD CAN (-) CAN (+) DIAG TXD CAN (-) CAN (+) 40 24 DIGITAL MOTOR ELECTRONICS DRIVER SEAT MEMORY CONTROL UNIT DRIVER SIDE MIRROR MEMORY CONTROL VOLUTE SPRING 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 K- BUS 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 RED WIRE RED/YEL/WHT WIRE RIGHT XENON HEADLIGHT (W/ XENON LIGHTS) ROLLOVER SENSOR (CONVERTIBLE) RPM SIG SEQUENTIAL MANUAL GEARBOX (SMG) CONTROL MODULE STEERING ANGLE SENSOR SUNROOF MODULE CONTROL UNIT SWITCH CENTER FRONT PASSENGER SIDE MIRROR MEMORY TIRE PRESSURE SYSTEM CONTROL UNIT TRANSMISSION CONTROL UNIT UNIT) VOICE INPUT W/ SMG W/O SMG WHT WIRE WHT/RED/YEL WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 IGN COIL 5 SIG ABS SYSTEM AIR CONDITIONING RELAY ANTI-THEFT SYSTEM BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLK/RED/WHT WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/RED WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE CAN H CAN L COOL OUT TEMP COOL OUT TEMP COMPUTER DATA LINES SYSTEM COOLANT OUTLET TEMPERATURE SENSOR COOLING FANS SYSTEM CRUISE CONTROL DIGITAL MOTOR ELECTRONICS (DME) CONTROL UNIT (LEFT REAR OF ENGINE COMPT) E-BOX (LEFT REAR OF ENGINE COMPT) E-BOX FAN EXHAUST FLAP VALVE (LEFT REAR OF LUGGAGE COMPT) FUSE GRN/BLK WIRE GRY/VIO WIRE HOT AT ALL TIMES HOT IN RUN OR START FUSE HOLDER (GLOVE BOX) FUSE IGNITION COILS (TOP RIGHT SIDE OF ENGINE) OBD SOCKET (LEFT FOOTWELL) RED WIRE RED/WHT WIRE RETURN PED POS 1 SIG RETURN PED POS 2 SIG RPM SIG EXH FLAP E-BOX FAN TANK LEAKAGE RR SPEED SIG CLUTCH SIG BRAKE SIG SECONDARY AIR HOT-FILM AIR MASS METER SECONDARY AIR INJECTION PUMP SECONDARY AIR PUMP RELAY TANK LEAKAGE AIR PUMP RELAY FAN TERMINAL 15 STR WHL CTRLS BRAKE SIG A/C RELAY TANK LEAKAGE TXD DIAG SIG DRV AWY PROT VOLTAGE SUPPLY VOLTAGE SUPPLY FUEL PUMP RLY WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE