Infiniti Q45 III (2001-2006) computer data lines system Wiring diagrams

3 1 1 3 PNK PNK WIRE ABS W/L VDC OFF LAMP GND YRSU VR LIS VDC OFF SW TXD BLS FL USV FR USV ASCD CONTROL UNIT (BEHIND DASH, LEFT OF STEERING COLUMN) BLK WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) FUSE 17 FUSE 6 FUSE 7 FUSE 9 FUSE BLOCK (J/B) 1 (BEHIND LEFT END OF DASH) GRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN ON OR START JOINT CONNECTOR 11 (BEHIND UPPER RIGHT SIDE OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 12 (BEHIND TOP CENTER OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 4 (BEHIND UPPER LEFT SIDE OF DASH) JOINT CONNECTOR 7 (BEHIND CENTER OF DASH) JOINT CONNECTOR 8 (BEHIND CENTER OF DASH) JOINT CONNECTOR 9 (BEHIND CENTER OF DASH) LEFT FRONT WHEEL SENSOR (AT LEFT FRONT HUB ASSEMBLY) LEFT REAR WHEEL SENSOR (AT LEFT REAR OF LUGGAGE COMPT) LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLU WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PPL PPL/WHT WIRE PRESSURE SENSOR RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT WHEEL SENSOR (AT RIGHT FRONT HUB ASSEMBLY) RIGHT REAR WHEEL SENSOR (AT LEFT REAR OF LUGGAGE COMPT) RL MV-AV FR MV-EV GND STOP LAMP SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) TCS IN VCC VDC ACTUATOR (RIGHT REAR OF ENGINE COMPARTMENT) VDC/TCS/ABS CONTROL UNIT (BEHIND RIGHT KICK PANEL) VOUT WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

1 2 3 4 5 6 REF BITE 2 3 4 5 6 7 8 GROUND BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE IND BRN WIRE BRN/WHT WIRE CAN-H CAN-L SENSOR 1 SENSOR 2 SENSOR 3 COMBINATION METER COMPUTER DATA LINES SYSTEM DRS OUT BS OUT GND ELECTRONIC SUSPENSION SYSTEM FUSE, FUSIBLE FUSIBLE LINK F LINK, RELAY BOX (IN ENGINE ROOM BOX) FUSIBLE LINK K GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY/RED WIRE HOT AT ALL TIMES ILLUM VDC OFF SWITCH JOINT CONNECTOR 17 (BEHIND UPPER RIGHT END OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 3 (BEHIND UPPER LEFT SIDE OF DASH) JOINT CONNECTOR 5 (BEHIND LEFT SIDE OF DASH, TAPED TO HARNESS) LOW VOLTAGE DETECTION CIRCUIT LT BLU WIRE LT GRN/BLK WIRE MOTOR RELAY ORG/ WIRE PARKING BRAKE SWITCH (BEHIND DASH, AT PARK BRAKE ASSEMBLY) PNK/BLK WIRE PPL/WHT WIRE RED/BLK WIRE RED/BLU WIRE SLIP IND SOLENOID VALVE RELAY UNIFIED METER CONTROL UNIT VDC OFF ABS IND IND VDC RELAY BOX (BEHIND FRONT GRILLE) W/ ACTIVE DAMPER SUSPENSION WHT/BLU WIRE WHT/RED WIRE YAW RATE/ SIDE G SENSOR (UNDER CENTER CONSOLE) YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 VACTR COMP ON ECV A/C AUTO AMPLIFIER (BEHIND RIGHT SIDE OF DASH) A/C-AV (FR TX) AV-A/C (FR RX) SENS GND SUN SENS AMBIENT SENSOR (AT CENTER FRONT OF ENGINE COMPT) BLK WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE CLK (FR) CLK A/C SWITCH COMBINATION METER COMPUTER DATA LINES SYSTEM FAN ON CLK (RR) RR AC (RR TX) FAN PWM FUSE 2 FUSE 21 FUSE 4 FUSE 6 FUSE BLOCK (J/B) 1 (BEHIND LEFT END OF DASH) GND BAT IGN GRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START IN-VEHICLE SENSOR (BELOW LOWER LEFT SIDE OF DASH) INTAKE DOOR MOTOR (UNDER RIGHT SIDE OF DASH, ON INTAKE UNIT) JOINT CONNECTOR JOINT CONNECTOR 11 (BEHIND UPPER RIGHT SIDE OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 14 (BEHIND UPPER RIGHT SIDE OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 16 (BEHIND UPPER RIGHT END OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 19 (BEHIND RIGHT END OF DASH, TAPED TO HARNESS) LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MODE DOOR MOTOR (PASSENGER SIDE) (BEHIND RIGHT SIDE OF DASH) ORG/ WIRE PNK 1 2 WIRE PNK WIRE PNK/BLK WIRE POWER WINDOWS SYSTEM PPL/WHT WIRE REAR CONTROL CANCEL RELAY (BEHIND RIGHT REAR WHEEL WELL) REAR CONTROL CANCEL SWITCH REAR CONTROL SWITCH RED WIRE RED/YEL WIRE RR-A/C (RR RX) RR/VENT ACTR- W/T SENS ECM COMP SUNLOAD SENSOR (BEHIND LEFT SIDE OF DASH) SW A/C GROUND UNIFIED METER CONTROL UNIT WHT WIRE WHT/BLK WIRE YEL WIRE YEL/GRN WIRE

10 9 11 BUS - BUS + SHIELD 12 13 14 15 16 17 BUS - BUS + BUS SHIELD BUS - BUS + BUS SHIELD 121 89 88 89 103 TW GND-A PDPRES GND-A AVCC 174 171 CAN-H CAN-L 2 3 PNK WIRE ACRLY AIR CONDITIONER RELAY AIR MIX DOOR MOTOR (DRIVER SIDE) BLK WIRE BLOWER MOTOR (BELOW RIGHT SIDE OF DASH, ON INTAKE UNIT) BLOWER RELAY BLU WIRE BLU/ORG WIRE BLU/RED WIRE BRN WIRE BRN/WHT WIRE CLOSE COMPRESSOR (LEFT FRONT OF ENGINE COMPARTMENT) COMPUTER DATA LINES SYSTEM COOLING UNIT ASSEMBLY DISPLAY ENGINE CONTROL MODULE (BEHIND GLOVE BOX) ENGINE CONTROLS SYSTEM FUSE 31 FUSE 33 FUSE 51 FUSE BLOCK (J/B) 2 (BEHIND RIGHT KICK PANEL) FUSE, FUSIBLE LINK, RELAY BOX (J/B) (IN ENGINE ROOM BOX) GRN WIRE GRN/ORG WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES INTAKE SENSOR JOINT CONNECTOR 12 (BEHIND TOP CENTER OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 29 (BEHIND RIGHT KICK PANEL, TAPED TO HARNESS) JOINT CONNECTOR 30 (BEHIND RIGHT KICK PANEL, TAPED TO HARNESS) LT GRN WIRE LT GRN/BLK WIRE MAGNET CLUTCH ECV SOLENOID VALVE MODE DOOR MOTOR (DRIVER SIDE) MULTI- FUNCTION SWITCH NCA WIRE PNK 1 2 WIRE PNK WIRE PNK/BLK WIRE REAR VENT DOOR MOTOR (BEHIND LEFT FRONT OF CENTER CONSOLE) RED WIRE RED/BLU WIRE RED/YEL WIRE W/ AV, NAVI CONTROL UNIT W/O NAVI W/ NAVI WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

A/D GRD TILT/TELE SEN PWR ST GND AUTO SENS AUTO SENS AUTO SENS BLK WIRE BLK/WHT WIRE BLU WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (BCM) (BEHIND LEFT KICK PANEL) BRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMBO SW (AUTO) COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM MEMORY SYSTEMS FUSE 14 FUSE 21 FUSE BLOCK (J/B) 1 (BEHIND LEFT END OF DASH) GRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/YEL WIRE GRY/RED WIRE HEADLIGHTS SYSTEM HOT IN HOT IN ACC OR ON INSTRUMENT CLUSTER SYSTEM INT (VR) SPEED SIG SET SW JOINT CONNECTOR 3 (BEHIND UPPER LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MEMORY SW 2 K/LESS GND MEMORY SYSTEMS MEMORY SYSTEMS DOOR LOCKS SYSTEM MEMORY SYSTEMS DOOR LOCKS SYSTEM INTERIOR LIGHTS SYSTEM MEMORY SYSTEMS MEMORY SYSTEMS DOOR LOCKS SYSTEM MEMORY SYSTEMS ORG/ WIRE PNK/BLU WIRE PPL PPL/WHT WIRE RED WIRE RED/BLU WIRE RED/YEL WIRE RX PNK TX WIRE TILT SENS TILT SW (UP) DOOR SW (AS) D/MIRR LAMP MEMORY SW 1 TRUNK, TAILGATE, FUEL DOORS SYSTEM WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WIPER/WASHER SYSTEM INSTRUMENT CLUSTER SYSTEM MEMORY SYSTEMS YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

ANTI-THEFT SYSTEM BLK WIRE BLU/WHT WIRE BODY CONTROL MODULE (BEHIND LEFT KICK PANEL) BRN/YEL WIRE CIRCUIT BREAKER 1 COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM MEMORY SYSTEMS DEFOGGER SYSTEM DOOR LOCKS SYSTEM FUSE 1 FUSE 3 FUSE BLOCK (J/B) 1 (BEHIND LEFT END OF DASH) GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HEADLIGHTS SYSTEM HOOD SW HORN CHRP WIPER AMP HORNS SYSTEM WIPER/WASHER SYSTEM HOT AT ALL TIMES HOT IN ON OR START IGN KEY SWITCH JOINT CONNECTOR 16 (BEHIND UPPER RIGHT END OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 9 (BEHIND CENTER OF DASH) LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MAP/L (LH) MAP/L (RH) MEMORY SYSTEMS ORG/ WIRE PNK WIRE PNK/BLK WIRE PPL/WHT WIRE RAP OUTPUT RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RR PERSONAL LMP RL PERSONAL LMP (RL) TELESCO SENS TRUNK OPENER IGN KEY DOOR WARN LMP MEM IND 2 GND A/D GND TRUNK OPENER SW THEFT IND TRUNK, TAILGATE, FUEL DOORS SYSTEM ANTI-THEFT SYSTEM WARNING SYSTEM WARNING SYSTEM COMPUTER DATA LINES SYSTEM WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE WIPER AUTO STOP WIPER/WASHER SYSTEM YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/RED WIRE

ASCD ASCD BRAKE SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) ASCD CONTROL UNIT (BEHIND DASH, LEFT OF STEERING COLUMN) ASCD PUMP (AT RIGHT REAR CORNER OF ENGINE COMPT) AIR VALVE ASCD STEERING WHEEL SWITCH BLK WIRE BLK/WHT WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/YEL WIRE CANCEL SWITCH COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE IND DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DUAL MODE MUFFLER CONTROL UNIT (AT RIGHT SIDE OF TRUNK) ENGINE CONTROL MODULE (BEHIND GLOVE BOX) ETC PRUN FUSE 12 FUSE 17 FUSE 9 FUSE BLOCK (J/B) 1 (BEHIND LEFT END OF DASH) FUSE, FUSIBLE LINK, RELAY BLOCK (J/B) (IN ENGINE ROOM BOX) GND SET LAMP OUTPUT GRN WIRE GRN/ORG WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN ON OR START JOINT CONNECTOR 12 (BEHIND TOP CENTER OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 16 (BEHIND UPPER RIGHT END OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 18 (BEHIND UPPER RIGHT END OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 4 (BEHIND UPPER LEFT SIDE OF DASH) JOINT CONNECTOR 5 (BEHIND LEFT SIDE OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 7 (BEHIND CENTER OF DASH) JOINT CONNECTOR 8 (BEHIND CENTER OF DASH) LT BLU WIRE LT GRN/BLK WIRE MAIN SWITCH ORG/ WIRE PARK/NEUTRAL POSITION RELAY PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RESUME/ ACCEL SW RXI TXI VEHICLE SPEED INPUT BRAKE SW INPUT CONTROL SW INPUT (GND) PNK WIRE SET IND SET/ COAST SWITCH SPIRAL CABLE (COMBINATION SWITCH) START RLY STOPLIGHT SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) TRANSMISSION CONTROL MODULE (BEHIND GLOVE BOX) UNIFIED METER CONTROL UNIT VACUUM MOTOR RELEASE VALVE VDC/TCS/ABS CONTROL UNIT (BEHIND RIGHT KICK PANEL) WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/PPL WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 IGN GND VSP BLK WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE (BEHIND GLOVE BOX) FUSE 7 FUSE 9 FUSE BLOCK (J/B) 1 (BEHIND LEFT END OF DASH) GRN WIRE GRY WIRE HOT IN ON OR START JOINT CONNECTOR 16 (BEHIND UPPER RIGHT END OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 18 (BEHIND UPPER RIGHT END OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 19 (BEHIND RIGHT END OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 4 (BEHIND UPPER LEFT SIDE OF DASH) JOINT CONNECTOR 9 (BEHIND CENTER OF DASH) LT GRN WIRE LT GRN/BLK WIRE PNK/BLK WIRE POWER STEERING CONTROL UNIT (BEHIND DASH, RIGHT SIDE OF CENTER CONSOLE) POWER STEERING SOLENOID VALVE (ON STEERING RACK ASSEMBLY) PPL/WHT WIRE SOL + TACHO UNIFIED METER CONTROL UNIT WHT/GRN WIRE

25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 WARN 3 2 1 PPL VPWR VOUT GND 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 SIG/SW 2 89 113 171 174 GND-A AIR VALVE ASCD PUMP VACUUM MOTOR RELEASE VALVE (AT RIGHT REAR CORNER OF ENGINE COMPT) BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BNC-SW DDL-TX PNK WIRE BNO-SW DDL-RX PKB-SW BRAKE PRESSURE SENSOR (AT LEFT REAR OF ENGINE COMPT) BRN/WHT WIRE BRN/YEL WIRE CANCEL SWITCH COAST/ SET SWITCH COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM CAN-L CAN-H CRUISE GND-S TVO SAFETY VENT VACUUM MTR DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DISTANCE SWITCH DUAL MODE MUFFLER CONTROL UNIT (AT RIGHT SIDE OF TRUNK) ACCEL/ RESUME SW ENGINE CONTROL MODULE (ECM) (BEHIND GLOVE BOX) ENGINE CONTROLS SYSTEM FRONT WIPER MOTOR (ON LEFT SIDE OF FIREWALL) FUSE 1 FUSE 17 FUSE 34 FUSE 9 FUSE BLOCK (J/B) 1 (BEHIND LEFT END OF DASH) FUSE BLOCK (J/B) 2 (BEHIND RIGHT KICK PANEL) FUSE, FUSIBLE LINK, RELAY BOX (IN ENGINE ROOM BOX) FUSE 77 GND-1 GND-2 BUZZ RLS-NO GND-3 STP-LMP GRN WIRE GRN/ORG WIRE GRN/YEL WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN ON OR START ICC STEERING SWITCH ICC UNIT (AT RIGHT SIDE OF TRUNK) IGN 1 IGN 2 INSTRUMENT CLUSTER SYSTEM JOINT CONNECTOR 12 (BEHIND TOP CENTER OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 3 (BEHIND UPPER LEFT SIDE OF DASH) JOINT CONNECTOR 30 (BEHIND RIGHT KICK PANEL, TAPED TO HARNESS) JOINT CONNECTOR 4 (BEHIND UPPER LEFT SIDE OF DASH) JOINT CONNECTOR 8 (BEHIND CENTER OF DASH) LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE ON/OFF SWITCH COMBINATION SWITCH (SPIRAL CABLE) ORG/ WIRE ORG/GRN WIRE PNK 3 4 5 6 WIRE PNK WIRE PNK/BLK WIRE PPL PSEN-PWR PPL/WHT WIRE PSEN-GND PSEN-SIG RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE SOL + SOL- WIP-L CAN-H RLS-NC T-RLY GND/SW 1 OD CANCEL WHT WIRE WHT/GRN WIRE WHT/RED WIRE WIP-H CAN-L RLS-PWR WIPER/WASHER SYSTEM YEL WIRE YEL/BLK WIRE YEL/RED WIRE

6 3 1 4 CAN-L CAN-H IGN GND BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BOOST SOLENOID BRAKE BOOSTER (LEFT REAR OF ENGINE COMPT) BRN WIRE BRN/WHT WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM CONTROL UNIT UNIFIED METER FUSE, FUSIBLE LINK, RELAY BLOCK (J/B) (IN ENGINE ROOM BOX) GRN WIRE GRY/RED WIRE ICC BRAKE HOLD RELAY (AT RIGHT SIDE OF ENGINE COMPT) ICC BRAKE SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) ICC SENSOR (AT FRONT CENTER OF ENGINE COMPT) INSTRUMENT CLUSTER SYSTEM JOINT CONNECTOR 12 (BEHIND TOP CENTER OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 17 (BEHIND UPPER RIGHT END OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 7 (BEHIND CENTER OF DASH) LT GRN/BLK WIRE NCA WIRE PARK/NEUTRAL POSITION RELAY PARKING BRAKE SWITCH (BEHIND DASH, AT PARK BRAKE ASSEMBLY) PNK 3 4 5 6 WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE STARTING/ CHARGING SYSTEM STOP LAMP SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) TRANSMISSION CONTROL MODULE (TCM) (BEHIND GLOVE BOX) -RLY WHT WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE