BMW Z4 E85/E86 (2002-2005) nca Wiring diagrams

2 7 TIRE FAILURE INDICATOR 30 RF WHL SPD RF WHL SPD ABS/DSC UNIT (LEFT REAR OF ENGINE COMPT) BLK WIRE BLK/BRN 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 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 CENTER CONSOLE SWITCH CENTER DIGITAL MOTOR ELECTRONICS CONTROL UNIT DSC SENS DSC SENSOR RIGHT FRONT SPEED SENSOR (WHEEL HUB) DSC SWITCH ELECTRONIC POWER STEERING FUSE GRN WIRE GRN/BLU/YEL WIRE GRY/BLK/YEL WIRE HANDS FREE CAN LOW GROUND 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 SYSTEM NCA WIRE PARK BRAKE PARK BRAKE SWITCH POWER DISTRIBUTION (RIGHT SIDE OF DASH) PRESSURE SENSOR 1 PRESSURE SENSOR 2 RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE RIGHT REAR SPEED SENSOR (WHEEL HUB) RR WHL OUT BRAKE FLUID LR SPD OUT CAN HIGH HANDS FREE STEERING ANGLE SENSOR (IN COLUMN) TELEPHONE TRANSCEIVER (W/O NAVI) VIO WIRE WHT WIRE WHT/BLU WIRE WHT/BLU/YEL WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE YEL/WHT WIRE

28 35 COOL TEMP SIG COOL TEMP 29 4 38 39 A/C COMP FAN COOL OUT TEMP COOL OUT TEMP BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLOWER OUTPUT STAGE (RIGHT SIDE OF DASH) BLU WIRE BLU/VIO WIRE BRN WIRE BRN/BLK WIRE DEFROSTER FLAP MOTOR (RIGHT SIDE OF DASH) DIGITAL MOTOR ELECTRONICS (DME) CONTROL UNIT (LEFT REAR OF ENGINE COMPT) ELECTRIC FAN ENGINE COOLANT TEMPERATURE SENSOR EVAPORATIVE TEMPERATURE SENSOR (LEFT SIDE OF DASH) FOOTWELL FLAP MOTOR (RIGHT SIDE OF DASH) FUSE GRN WIRE HOT AT ALL TIMES MIX AIR TEMPERATURE SENSOR MIXER FLAP MOTOR (RIGHT SIDE OF DASH) NCA WIRE POWER DISTRIBUTION (RIGHT SIDE OF DASH) RED WIRE RED/BLU WIRE RED/GRN WIRE REMOTE TEMPERATURE SENSOR VENTILATION FLAP MOTOR (RIGHT SIDE OF DASH) YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/VIO WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 OBD II SOCKET (LEFT SIDE OF DASH) 1 2 3 4 BTFLT BUS BTFLT BUS BTFLT BUS BTFLT BUS 17 32 37 36 RPM SIG DIAG TXD CAN (-) CAN (+) 21 16 17 14 DIAG TXD CAN (-) CAN (+) K-BUS 3 4 CAN (-) CAN (+) 32 36 37 DIAG TXD CAN (+) CAN (-) AMPLIFIER BLK WIRE BRN WIRE BRN/BLK WIRE BTFLT BUS CAN (-) CAN (+) DIAG TXD CD CHANGER CENTER CONSOLE SWITCH CENTER VOLUTE SPRING CENTRAL INFORMATION DISPLAY CONVERTIBLE TOP MODULE DIAG TXD DIAG TXD CAN (-) CAN (+) DIGITAL MOTOR ELECTRONICS DRIVER'S SEAT MEMORY DYNAMIC STABILITY CONTROL ELECTRONIC IMMOBILIZER CONTROL UNIT ELECTRONIC POWER STEERING FUSE GENERAL MODULE CONTROL UNIT 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 "B" PILLAR SATELLITE LEFT FRONT DOOR SATELLITE LIGHT SWITCH CENTER NAVIGATION SYSTEM NCA WIRE PARK DISTANCE CONTROL UNIT POWER DISTRIBUTION (RIGHT SIDE OF DASH) RAIN SENSOR CONTROL UNIT RED WIRE RED/YEL/WHT WIRE RIGHT "B" PILLAR SATELLITE RIGHT FRONT DOOR SATELLITE RPM SIG SAFETY INFORMATION MODULE SEQUENTIAL MANUAL GEARBOX (SMG) CONTROL MODULE STEERING ANGLE SENSOR TELEPHONE TRANSCEIVER TRANSMISSION CONTROL UNIT VIDEO MODULE VOICE CONTROL SYSTEM W/ SMG W/O SMG WHT WIRE WHT/RED WIRE WHT/RED/YEL WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/RED WIRE

BLK WIRE BLU WIRE BRN WIRE COOLANT OUTLET TEMPERATURE GND COOLANT OUTLET TEMPERATURE SIG COOLANT TMP COOLANT TMP SIG DIGITAL MOTOR ELECTRONICS CONTROL UNIT (LEFT REAR OF ENGINE COMPT) ELECTRIC FAN ELECTRIC FAN SIG ENGINE COOLANT TEMPERATURE SENSOR GRN WIRE GRY WIRE HOT AT ALL TIMES FUSE NCA WIRE POWER DISTRIBUTION (RIGHT SIDE OF DASH) RED WIRE REMOTE TEMPERATURE SENSOR

BLK WIRE BRN WIRE CONVERTIBLE TOP REAR WINDOW DEFROSTER FUSE GRN WIRE GRY WIRE HARDTOP LOCATOR II HEATING, A/C SYSTEM HOT AT ALL TIMES HOT IN RUN OR START NCA WIRE POWER DISTRIBUTION (RIGHT SIDE OF DASH) REAR WINDOW DEFROSTER RELAY RED WIRE YEL WIRE

BLK WIRE BRN WIRE FUSE HARDTOP LOCATOR 1 HARDTOP LOCATOR 2 HARDTOP REAR WINDOW DEFROSTER HEATING, A/C SYSTEM HOT AT ALL TIMES HOT IN RUN OR START NCA WIRE POWER DISTRIBUTION (RIGHT SIDE OF DASH) REAR WINDOW DEFROSTER RELAY RED WIRE YEL WIRE

BLK WIRE BRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CONVERTIBLE TOP LOWERED SWITCH CONVERTIBLE TOP REAR WINDOW DEFROSTER FUSE GENERAL MODULE CONTROL MODULE (RIGHT SIDE OF DASH) GRN WIRE GRN/GRY WIRE GRY WIRE HARDTOP LOCATOR II HEATING, A/C SYSTEM HOT AT ALL TIMES HOT IN RUN OR START NCA WIRE POWER DISTRIBUTION (RIGHT SIDE OF DASH) REAR WINDOW DEFROSTER RELAY RED WIRE RED/GRN/YEL WIRE WHT/RED/YEL WIRE YEL WIRE

BRN WIRE DIGITAL MOTOR ELECTRONICS CONTROL UNIT (LEFT REAR OF ENGINE COMPT) E-BOX FAN HOT W/ DME RELAY ENERGIZED POWER DISTRIBUTION (RIGHT SIDE OF DASH) FUSE NCA WIRE RED WIRE WHT WIRE

10 8 TRUNK LID UNLOCK MTR SIG DWA SIREN ALARM CONTROL SIG 23 7 DWA LED SIG HOOD CONTACT SWITCH BLK/BLU WIRE BLK/RED WIRE BLK/YEL WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRY/YEL WIRE ELECTROCHROMATIC INTERIOR REARVIEW MIRROR FUSE GENERAL MODULE CONTROL UNIT (RIGHT SIDE OF DASH) GRN WIRE GRY/BLK/YEL WIRE GRY/BRN WIRE HORN FOR ANTI-THEFT ALARM SYSTEM HOT AT ALL TIMES INTERIOR MOVEMENT DETECTOR NCA WIRE POWER DISTRIBUTION (RIGHT SIDE OF DASH) RED WIRE RED/GRN WIRE REMOTE CONTROL SIG TILT SENSOR VIO/GRN WIRE WHT/BLK WIRE YEL/RED WIRE

29 4 38 39 A/C COMP FAN COOL OUT TEMP COOL OUT TEMP A/C COMP CTRL K-BUS SIG AIR DISTRIBUTION FLAP MOTOR ELECTRIC FAN AIR DISTRIBUTION MICROSWITCH BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLOWER MOTOR (RIGHT SIDE OF DASH) BLOWER OUTPUT STAGE (RIGHT SIDE OF DASH) BLU WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOL TEMP COOL TEMP SIG COOLANT PRESSURE SENSOR (RIGHT SIDE OF ENGINE COMPT) DEFOGGER SYSTEM DIGITAL MOTOR ELECTRONICS (DME) CONTROL UNIT (LEFT REAR OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE SENSOR EVAPORATIVE TEMPERATURE SENSOR (LEFT SIDE OF DASH) FLAP MTR SIG FLAP MTR GND FLAP MTR SIG FLAP MTR GND FRESH AIR/ RECIRCULATING FLAP MOTOR (RIGHT SIDE OF DASH) FUSE GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BRN WIRE GRY/RED WIRE HEATING, A/C SYSTEM HOT AT ALL TIMES HOT IN RUN, START MIXER FLAP MOTOR (RIGHT SIDE OF DASH) NCA WIRE POWER DISTRIBUTION (RIGHT SIDE OF DASH) RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE REFRIGERANT COMPRESSOR CONTROL VALVE (RIGHT SIDE OF ENGINE COMPT) REMOTE TEMPERATURE SENSOR WHT WIRE WHT/RED/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE