Infiniti Q45 III (2001-2006) unified meter control unit Wiring diagrams

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

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

ANTI-LOCK BRAKES SYSTEM COMPUTER DATA LINES SYSTEM BLK WIRE BLK/PNK WIRE BLK/RED WIRE BLK/WHT WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE CAN-H CAN-L SEN 1 SEN 2 SEN 3 COMBINATION METER COMPUTER DATA LINES SYSTEM FRONT VERTICAL G SENSOR (AT BASE OF LEFT KICK PANEL) FUSE 9 FUSE BLOCK (J/B) 1 (BEHIND LEFT END OF DASH) GRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/YEL WIRE GRY/RED WIRE HOT IN ON OR START JOINT CONNECTOR 16 (BEHIND UPPER RIGHT END OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 36 (BEHIND RIGHT JOINT CONNECTOR 4 (BEHIND UPPER LEFT SIDE OF OF DASH) 4 4 LEFT REAR SHOCK ABSORBER ACTUATOR (ON TOP OF LEFT REAR SHOCK TOWER) LT BLU WIRE LT GRN/BLK WIRE ORG/ WIRE PNK WIRE PNK/BLK WIRE PPL PPL/WHT WIRE REAR SHOCK TOWER, TAPED TO HARNESS) REAR VERTICAL G SENSOR (AT RIGHT "C" PILLAR) RED/BLK WIRE RED/GRN WIRE RED/YEL WIRE RIGHT REAR SHOCK ABSORBER ACTUATOR (ON TOP OF RIGHT REAR SHOCK ABSORBER) SPORT IND STEERING ANGLE SENSOR (AT RIGHT SIDE OF STEERING COLUMN) UNIFIED METER CONTROL UNIT VCC VOUT GND VCC VOUT GND 2 3 WHT WIRE WHT/BLU WIRE YEL/BLK WIRE

111 33 37 DOOR WARN LAMP DOOR SW (RL) DOOR SW (AS) 4 3 2 1 LIGHT (-) LIGHT (+) GND BAT 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 PNK WIRE A/T OIL TEMP IND ABS IND. AIR BAG IND AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES SYSTEM ELECTROINC SUSPENSION SYSTEM AT DEVICE AUTO AUTO ANTI-DAZZLING INSIDE MIRROR (COMPASS) BELT IND BLK WIRE BLK/ORG WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BODY CONTROL MODULE (BEHIND LEFT KICK PANEL) BRAKE IND BRN WIRE BRN/WHT WIRE CHARGE IND CLOCK COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE IND (W/O ICC) DIODE DOOR IND DOOR SW (RR) DOOR SW (DR) DRIVER SIDE FRONT DOOR SWITCH DRIVER SIDE FRONT POWER SEAT ENGINE CONTROL MODULE (ECM) (BEHIND GLOVE BOX) FLUORESCENT LAMP FUEL FUEL IND FUEL GAUGE FUEL LEVEL SENSOR FUSE 1 FUSE 21 FUSE 6 FUSE 9 FUSE BLOCK (J/B) 1 (BEHIND LEFT END OF DASH) GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/RED WIRE HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM DEFOGGER SYSTEM HIGH BEAM IND HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START ILLUM INTERIOR LIGHTS SYSTEM IND OUT JOINT CONNECTOR 11 (BEHIND UPPER RIGHT SIDE OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 17 (BEHIND UPPER RIGHT END OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 3 (BEHIND UPPER LEFT SIDE OF DASH) JOINT CONNECTOR 4 (BEHIND UPPER LEFT SIDE OF DASH) LED LEFT REAR DOOR LOCK ASSEMBLY (IN LEFT REAR DOOR) LEFT TURN IND LOW TIRE PRESSURE WARNING CONTROL UNIT (BEHIND CENTER OF DASH) LOW VOLT DETECTION CIRCUIT LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MALFUNCTION INDICATOR LAMP IND NCA WIRE OIL IND ORG/ WIRE ORG/BLU WIRE PARKING BRAKE SWITCH (BEHIND DASH, AT PARK BRAKE ASSEMBLY) PASSENGER SIDE FRONT DOOR SWITCH (AT BASE OF RIGHT "B" PILLAR) PNK 2 1 3 DN WIRE PNK WIRE PNK/BLK WIRE POSITION SELECT SWITCH PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR DOOR LOCK ASSEMBLY (IN RIGHT REAR DOOR) RIGHT TURN IND SEAT BELT BUCKLE SWITCH SET IND (W/O ICC) SLIP IND SPEEDOMETER SPORT IND STARTING/ CHARGING SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TACHOMETER TIRE PRESSURE IND UNIFIED METER CONTROL UNIT UP MANUAL MODE SELECT SWITCH VDC OFF IND VEHICLE INFORMATION SYSTEM CIRCUIT WATER TEMP GAUGE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WIPER/WASHER SYSTEM YEL WIRE YEL/GRN WIRE YEL/RED WIRE

1 2 5 6 14 15 ALT 3 4 7 8 IGN RH LIGHT FUSE RH LIGHT 9 10 11 12 13 16 17 PNK RH LIGHT MAIN LH LIGHT MAIN WIRE ALTERNATOR (RIGHT FRONT OF ENGINE) BLK WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER DAYTIME LIGHT CONTROL UNIT (LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS SYSTEM FUSE 54 FUSE 55 FUSE 57 FUSE 73 FUSE 82 FUSE BLOCK (AT RIGHT SIDE OF ENGINE COMPT) FUSE BLOCK (J/B) 1 (BEHIND LEFT END OF DASH) FUSE 14 FUSE, FUSIBLE LINK, RELAY BLOCK (J/B) (IN ENGINE ROOM BOX) FUSE, FUSIBLE LINK, RELAY BOX (IN ENGINE ROOM BOX) GRN WIRE HEADLAMP RELAY 1 HEADLAMP RELAY 2 HID HIGH BEAM INDICATOR HOT AT ALL TIMES HOT IN HOT IN ON OR START JOINT CONNECTOR 13 (BEHIND TOP CENTER OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 17 (BEHIND UPPER RIGHT END OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 2 (BEHIND LEFT SIDE OF DASH, NEAR FUSE BLOCK) JOINT CONNECTOR 20 (BEHIND RIGHT SIDE OF DASH, TAPED TO HARNESS) LEFT FRONT COMBINATION LAMP (HEADLAMP) LH LIGHT FUSE LH LIGHT RH MAIN SW LH MAIN SW GND PKB SW LT BLU WIRE LT GRN/BLK WIRE PARKING BRAKE SWITCH (BEHIND DASH, AT PARK BRAKE ASSEMBLY) PASSENGER SIDE FRONT DOOR SWITCH (AT BASE OF RIGHT "B" PILLAR) PNK WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT COMBINATION LAMP (HEADLAMP) STARTING/CHARGING SYSTEM TAIL LAMP RELAY UNIFIED METER CONTROL UNIT WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE

BLK WIRE BLU/RED WIRE BRN WIRE COMBINATION METER FUSE 54 FUSE 55 FUSE 57 FUSE 73 FUSE BLOCK (J/B) 1 (BEHIND LEFT END OF DASH) FUSE, FUSIBLE LINK, RELAY BLOCK (J/B) (IN ENGINE ROOM BOX) FUSE, FUSIBLE LINK, RELAY BOX (IN ENGINE ROOM BOX) HEADLAMP RELAY 1 HEADLAMP RELAY 2 HID HIGH BEAM INDICATOR HOT AT ALL TIMES JOINT CONNECTOR 13 (BEHIND TOP CENTER OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 2 (BEHIND LEFT SIDE OF DASH, NEAR FUSE BLOCK) JOINT CONNECTOR 20 (BEHIND RIGHT SIDE OF DASH, TAPED TO HARNESS) LEFT FRONT COMBINATION LAMP (HEADLAMP) LT GRN WIRE LT GRN/BLK WIRE PASSENGER SIDE FRONT DOOR SWITCH (AT BASE OF RIGHT "B"PILLAR) PNK 6 7 WIRE PNK WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT COMBINATION LAMP (HEADLAMP) TAIL LAMP RELAY UNIFIED METER CONTROL UNIT WHT/GRN WIRE

1 4 5 6 IGN SW 7 10 11 13 14 BAT RAP INPUT AUTO OFF AUTO RETURN CANCEL SWITCH (ILLUM) (W/ REAR CONTROL SWITCH) BLK WIRE BLU WIRE BLU/YEL WIRE COMBINATION METER COMBINATION SWITCH LIGHT SWITCH COMPUTER DATA LINES SYSTEM CONSOLE BOX LAMP CONSOLE LAMP COURTESY LAMPS CIRCUIT DIODE DOOR SW (DR) DRIVER FRONT DOOR SWITCH FLUORESCENT LAMP FRONT INTERIOR LAMP FUSE 1 FUSE 54 FUSE 6 FUSE 8 FUSE 9 FUSE BLOCK (J/B) 1 (BEHIND LEFT END OF DASH) FUSE, FUSIBLE LINK, RELAY BLOCK (IN ENGINE ROOM BOX) GRN WIRE HEADLAMP BATTERY SAVER CONTROL UNIT (BEHIND DASH, LEFT OF STEERING COLUMN) HOT AT ALL TIMES HOT IN ON OR START ILL OUT TAL/L RLY COMB SW (AUTO) DOOR SW (AS) JOINT CONNECTOR 11 (BEHIND UPPER RIGHT SIDE OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 16 (BEHIND UPPER RIGHT END OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 17 (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) LT BLU WIRE LT GRN/BLK WIRE POWER TOPS SYSTEM POWER WINDOWS SYSTEM RAP OUTPUT REAR CONTROL SWITCH (ILLUM) (W/ REAR CONTROL SWITCH) REAR SUNSHADE REAR SWITCH (ILLUM) RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT DOOR SWITCH T/L SW 1 T/L RLY OUT 1 T/L SW 2 T/L RLY OUT 2 TAILLAMP RELAY UNIFIED METER CONTROL UNIT W/ REAR CONTROL SWITCH W/O REAR CONTROL SWITCH WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE

A/C SYSTEM ACRLY FPCM MOTRLY VIAS PRF- IGN 5 IGN 6 IGN 7 IGN 8 ACTIVE DAMPER SUSPENSION UNIT CONTROL UNIT (LEFT REAR SHOCK TOWER) BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER COOLING FAN SPEED CONTROL SOLENOID VALVE (ON FRONT OF ENGINE) CRANKSHAFT POSITION SENSOR (POS) (ON REAR OF CYL BLOCK) CRTN INJ 4 INJ 5 INJ 6 INJ 7 INJ 8 IGN 1 IGN 2 IGN 3 IGN 4 PNK WIRE ENGINE CONTROL MODULE (ECM) (BEHIND GLOVE BOX) EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE (ON TOP RIGHT REAR OF ENGINE) FPR SSOFF CVBV FUEL INJECTOR 1 FUEL INJECTOR 2 FUEL INJECTOR 3 FUEL INJECTOR 4 FUEL INJECTOR 5 FUEL INJECTOR 6 FUEL INJECTOR 7 FUEL INJECTOR 8 FUSE 9 FUSE BLOCK (J/B) 1 (LEFT END OF PANEL) GRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE HOT IN ON OR START IGNSW EVAP INJ 1 INJ 2 INJ 3 J/C 19 (BEHIND RIGHT END OF DASH) J/C 28 J/C 29 (BEHIND RIGHT KICK PANEL) LED LT BLU WIRE LT GRN WIRE MALFUNCTION INDICATOR LAMP NCA WIRE ORG/ WIRE ORG/BLU WIRE PNK/BLU WIRE POS POWER STEERING CONTROL UNIT (BEHIND DASH, RIGHT SIDE OF CENTER CONSOLE) PPL PPL/WHT WIRE PRF+ PRUN IN RED WIRE RED/BLU WIRE RED/YEL WIRE STSW TACHO TACHO ETC PRUN TP IN UNIFIED METER CONTROL UNIT VACUUM CUT VALVE BYPASS VALVE (UNDER REAR OF VEHICLE, FORWARD OF EVAP CANISTER) VIAS CONTROL SOLENOID VALVE (TOP FRONT CENTER OF ENGINE) WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE