Infiniti M45 II (2002-2004) unified meter control unit Wiring diagrams

1 2 3 4 5 6 REF BITE 2 3 4 5 GROUND ABS BLK WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE FLUID LEVEL SWITCH (LEFT REAR OF ENGINE COMPT, ON BRAKE FLUID RESERVOIR) BRN WIRE BRN/WHT WIRE CAN-H- CAN-L- COMBINATION METER COMPUTER DATA LINES SYSTEM (LEFT SIDE OF DASH) DRS OUT BS OUT GND FUSE F FUSE K FUSE, FUSIBLE LINK, RELAY BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY/RED WIRE HOT AT ALL TIMES J/C 25 (BEHIND LOWER LEFT SIDE OF DASH) J/C 3 (BEHIND LEFT SIDE OF DASH) J/C 5 (BEHIND UPPER LEFT SIDE OF DASH) LT BLU WIRE MOTOR RELAY ORG/ WIRE PARKING BRAKE SWITCH (BEHIND DASH, AT PARK BRAKE ASSEMBLY) PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE SLIP SOLENOID VALVE RELAY STEERING WHEEL ANGLE SENSOR UNIFIED METER CONTROL UNIT VDC OFF VDC OFF SWITCH (UNDER LEFT SIDE OF DASH) VDC RELAY BOX (BEHIND FRONT GRILLE) WHT/GRN WIRE WHT/RED WIRE YAW RATE AND 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 COMP ON ECV A/C AUTO AMPLIFIER (BEHIND RIGHT SIDE OF DASH, NEAR BLOWER MOTOR) A/C-AV (FR TX) AV-A/C (FR RX) SENS GND SUN SENS AIR MIX DOOR MOTOR (PASSENGER SIDE) (BEHIND RIGHT SIDE OF DASH, ON HEATER UNIT) AMBIENT SENSOR BEHIND CENTER OF FRONT BUMPER BLK WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE CLK (FR) COMBINATION METER COMPRESSOR) COMPUTER DATA LINES SYSTEM ECV SOLENOID VALVE FAN ON FAN PWM FUSE 2 FUSE 21 FUSE 6 FUSE BLOCK (J/B) NO.1 (BEHIND LEFT END OF DASH) GND BAT IGN GRN WIRE GRN/ORG WIRE GRN/WHT 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 (BEHIND LOWER CENTER OF DASH) INTAKE DOOR MOTOR (UNDER RIGHT SIDE OF DASH, ON INTAKE UNIT) J/C 11 (BEHIND UPPER RIGHT SIDE OF DASH, TAPED TO HARNESS) J/C 14 (BEHIND UPPER RIGHT SIDE OF DASH, TAPED TO HARNESS) J/C 16 (BEHIND UPPER RIGHT SIDE OF DASH, TAPED TO HARNESS) J/C 19 (BEHIND UPPER RIGHT SIDE OF DASH, TAPED TO HARNESS) LT BLU WIRE LT GRN/BLK WIRE MAGNETIC CLUTCH ORG/ WIRE PNK PNK PNK WIRE PNK WIRE PPL/WHT WIRE RED WIRE RED/YEL WIRE SUN LOAD SENSOR (UNDER TOP LEFT SIDE OF DASH) UNIFIED METER CONTROL UNIT W/T SENS ECM COMP YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

AIR VALVE 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 COMPARTMENT) ASCD STEERING SWITCH BLK WIRE BLK/RED WIRE BLK/WHT (OR BLK) WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/YEL WIRE CANCEL SWITCH COMBINATION METER COMBINATION SWITCH (SPIRAL CABLE) CRUISE (GREEN) DEPRESSED ENGINE CONTROL MODULE (BEHIND GLOVE BOX) ETC PRUN FUSE 12 FUSE 17 FUSE 9 FUSE BLOCK (J/B) 1 (BEHIND LEFT END OF DASH) GND SET LAMP OUTPUT GRN WIRE GRN/ORG WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN ON OR START J/C 10 (BEHIND UPPER LEFT END OF DASH, TAPED TO HARNESS) J/C 16 (BEHIND UPPER RIGHT SIDE OF DASH, TAPED TO HARNESS) J/C 5 (BEHIND UPPER LEFT SIDE OF DASH, TAPED TO HARNESS) J/C 7 (BEHIND UPPER LEFT SIDE OF DASH, TAPED TO HARNESS) J/C 8 (BEHIND LOWER LEFT SIDE OF DASH, TAPED TO HARNESS) LT GRN WIRE MAIN CRUISE SWITCH OFF ORG/BLK WIRE ORG/BLU WIRE PARK/NEUTRAL POSITION RELAY PNK 1 3 WIRE PNK DATA LINK CONNECTOR (PARTIAL) (UNDER LEFT SIDE OF DASH) WIRE PNK WIRE PPL PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RELEASE VALVE RELEASED RELEASED DEPRE- SSED RESUME/ ACCEL SWITCH RXI TXI VEHICLE SPEED INPUT BRAKE NO SW INPUT CONTROL SW GND INPUT PNK WIRE SET- SET/ COAST SWITCH START RLY STARTING/ CHARGING SYSTEM STOPLAMP SWITCH (ON BRACKET, ABOVE BRAKE PEDAL) TRANSMISSION CONTROL MODULE (TCM) (BEHIND GLOVE BOX) TVOO UNIFIED METER CONTROL UNIT VACUUM MOTOR VDC/TCS/ABS CONTROL UNIT (BEHIND RIGHT KICK PANEL) WHT WIRE 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 VIGN GND VSP 61 63 CAN-H CAN-L BLK WIRE BLU WIRE COMBINATION METER ENGINE CONTROL MODULE (ECM) (BEHIND GLOVE BOX) FUSE 7 FUSE 9 FUSE BLOCK (J/B) NO. 1 (BEHIND LEFT END OF DASH) GRN WIRE GRY WIRE HOT IN ON OR START JOINT CONNECTOR 10 (BEHIND UPPER LEFT END OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 16 (BEHIND UPPER RIGHT SIDE OF DASH) JOINT CONNECTOR 19 (BEHIND UPPER RIGHT SIDE OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 9 (BEHIND LOWER LEFT SIDE OF DASH, TAPED TO HARNESS) LT GRN WIRE POWER STEERING CONTROL UNIT (BEHIND RIGHT SIDE OF DASH) POWER STEERING SOLENOID VALVE (ON STEERING RACK ASSEMBLY) PPL/WHT WIRE RED WIRE SOL + TACHO UNIFIED METER CONTROL UNIT VDC/TCS/ABS CONTROL UNIT (BEHIND RIGHT KICK PANEL) WHT/GRN WIRE

1 2 3 4 BATT GND LIGHT (+) LIGHT (-) 53 22 (YELLOW) 8 6 5 GND A/T CHECK ABS AIR BAG ANTI-LOCK BRAKES SYSTEM AT DEVICE AUTO ANTI-DAZZLING INSIDE MIRROR (COMPASS) BELT BLK WIRE BLK/ORG WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BRAKE FLUID LEVEL SWITCH (ON BRAKE FLUID RESERVOIR) BRAKE/ BRN/WHT WIRE CHARGE CLOCK COMBINATION METER COMPUTER DATA LINE SYSTEM CRUISE CRUISE CONTROL SYSTEM DOOR DOOR LOCKS SYSTEM ELECTRONIC POWER STEERING SYSTEM ENGINE CONTROL MODULE (ECM) (BEHIND GLOVE BOX) FUEL FUEL GAUGE FUEL LEVEL SENSOR UNIT (IN FUEL TANK) FUSE 1 FUSE 21 FUSE 6 FUSE 8 FUSE 9 FUSE BLOCK (J/B) NO. 1 (BEHIND LEFT END OF DASH) GREEN GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/RED WIRE HIGH BEAM HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START ILLUM INTERIOR LIGHTS SYSTEM IND OUT INSTRUMENT CLUSTER SYSTEM (W/ VEHICLE INFORMATION SYSTEM) JOINT CONNECTOR 10 (UPPER LEFT END OF DASH) JOINT CONNECTOR 11 (UPPER RIGHT SIDE OF DASH) JOINT CONNECTOR 15 (BEHIND UPPER RIGHT SIDE OF DASH) JOINT CONNECTOR 3 SIDE OF DASH) OF DASH) LED LEFT TURN LOW TIRE PRESSURE WARNING CONTROL UNIT (BEHIND CENTER OF DASH) LT BLU WIRE LT GRN WIRE MALFUNCTION INDICATOR LAMP NCA WIRE OIL OIL PRESSURE SWITCH (FRONT CENTER OF ENGINE) ORG/ WIRE ORG/BLU WIRE PARKING BRAKE SWITCH (ON PARK BRAKE ASSEMBLY) PNK 2 1 3 DN WIRE PNK WIRE PNK/BLK WIRE POSITION SELECT SWITCH PPL 39 5 PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT TURN SEAT BELT BUCKLE SWITCH SET- SLIP SPEEDOMETER STARTING/ CHARGING SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM ANTI-LOCK BRAKES SYSTEM TACHOMETER TIRE PRESSURE UNIFIED METER CONTROL UNIT UP MANUAL MODE SELECT SWITCH VDC OFF W/ AUTO DRIVE POSITIONER W/O AUTO DRIVE POSITIONER WASHER WASHER LEVEL SWITCH (WASHER FLUID RESERVOIR) WATER TEMP GAUGE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE

1 4 5 6 IGN SW 7 10 11 13 14 BAT RAP INPUT AUTO OFF AV CONTROL UNIT (W/O NAVI) (BEHIND CENTER OF DASH) AV, NAVI CONTROL UNIT (W/ NAVI) (AT FRONT CENTER OF LUGGAGE COMPT) BLK WIRE BLU WIRE BODY CONTROL MODULE (BCM) (LEFT KICK PANEL) COMBINATION METER COMBINATION SWITCH LIGHT SWITCH DIODE (BEHIND UPPER LEFT SIDE OF DASH) DOOR SW (DR) DRIVER FRONT DOOR SWITCH FRONT INTERIOR LAMP FUSE 1 FUSE 54 FUSE 6 FUSE 8 FUSE 9 FUSE, FUSIBLE LINK, RELAY BLOCK (J/B) (AT RIGHT SIDE OF ENGINE COMPT) GRN WIRE GROUND HEADLAMP BATTERY SAVER CONTROL UNIT (BEHIND LEFT SIDE OF DASH) HOT AT ALL TIMES HOT IN ON OR START FUSE BLOCK (J/B) NO. 1 (BEHIND LEFT END OF DASH) ILLUMINATION JOINT CONNECTOR 10 (BEHIND UPPER LEFT END OF DASH) JOINT CONNECTOR 11 (BEHIND UPPER RIGHT SIDE OF DASH) JOINT CONNECTOR 16 (BEHIND UPPER RIGHT SIDE OF DASH) JOINT CONNECTOR 21 (BEHIND UPPPER LEFT SIDE OF DASH) JOINT CONNECTOR 5 (BEHIND UPPER LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE RAP OUTPUT RED/BLU WIRE RED/GRN 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 TAILLIGHT RELAY TAL/L RLY COMB SW (AUTO) DOOR SW (AS) UNIFIED METER CONTROL UNIT WHT/BLK WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/RED WIRE

4 5 6 7 8 PPL BACKUP LAMP RELAY (AT LEFT KICK PANEL) BLU WIRE BODY CONTROL MODULE (BEHIND LEFT KICK PANEL) BRN/YEL WIRE COMBINATION METER DATA LINE COMPUTER SYSTEM DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) GRN WIRE IIURX IIUTX J/C 7 (BEHIND UPPER LEFT OF DASH) J/C 8 (BEHIND LOWER LEFT OF DASH) LT GRN WIRE NCA WIRE ORG/BLU WIRE PNK WIRE PPL RED WIRE RED/BLK WIRE RED/BRN WIRE REV LAMP RLY TRANSMISSION CONTROL MODULE (BEHIND GLOVE BOX) UNIFIED METER CONTROL UNIT

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 GND BAT BAT GND 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 GND BAT GND BAT 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 ILL IGN 3 3 1 1 2 2 PPL PPL PPL 30 31 PPL IIUTX IIURX 5 6 7 BUS (+) BUS (-) GND 57 56 58 PPL AIR CONDITIONING SYSTEM AV, NAVI CONTROL UNIT (AT FRONT CENTER OF LUGGAGE COMPT) BLK WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BODY CONTROL MODULE (BEHIND LEFT KICK PANEL) BRN WIRE BRN/WHT WIRE BRN/YEL WIRE BUS SHIELD BUS (+) BUS (-) BUS SHIELD BUS (+) BUS (-) COMBINATION METER COMBINATION SWITCH (SPIRAL CABLE) COMPUTER DATA LINES SYSTEM DISPLAY FUSE 1 FUSE 21 FUSE BLOCK (J/B) NO. 1 (BEHIND LEFT END OF DASH) FUSE, FUSIBLE LINK, RELAY BLOCK (J/B) (AT RIGHT SIDE OF ENGINE COMPT) FUSE 52 GRN WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START ILL CON SHIELD ME-AV AV-ME AV-CN CN-AV SHIELD AC-AV AV-AC ACCLK JOINT CONNECTOR 10 (BEHIND UPPER LEFT END OF DASH) JOINT CONNECTOR 3 (BEHIND UPPER LEFT END OF DASH) JOINT CONNECTOR 7 (BEHIND UPPER LEFT SIDE OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 9 (BEHIND LOWER LEFT SIDE OF DASH) LOW TIRE PRESSURE WARNING CONTROL UNIT (BEHIND CENTER OF DASH) LT BLU WIRE LT GRN WIRE MULTIFUNCTION SWITCH NCA WIRE ORG/BLU WIRE PNK WIRE PPL RED WIRE RED/BLU WIRE RED/WHT WIRE RGB GND RGB SYNC RX STRG SHIELD BUS (-) BUS (+) SHIELD BUS (-) BUS (+) BUS SHIELD BUS (-) BUS (+) SHIELD BUS+ BUS- SHIELD BUS + BUS - SOUND SYSTEMS SPEED STEERING SWITCH DATA OUT UNIFIED METER CONTROL UNIT VP YS HP SHIELD WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YS RGB SYNC VP HP RGB GND

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 GND BAT BAT GND 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 GND BAT GND BAT 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 ILL 3 3 1 1 2 2 PPL PPL PPL 30 31 PPL IIUTX IIURX 49 50 51 BUS (+) BUS (-) SHIELD 5 6 4 BUS (+) BUS (-) GND 57 56 58 PPL AIR CONDITIONING SYSTEM AV CONTROL UNIT (BEHIND CENTER OF DASH) BLK WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BODY CONTROL MODULE (BEHIND LEFT KICK PANEL) BRN WIRE BRN/WHT WIRE BRN/YEL WIRE BUS SHIELD BUS (+) BUS (-) BUS SHIELD BUS (+) BUS (-) COMBINATION METER COMPUTER DATA LINES SYSTEM COMBINATION SWITCH (SPIRAL CABLE) DISPLAY FUSE 1 FUSE 21 FUSE BLOCK (J/B) NO. 1 (BEHIND LEFT END OF DASH) FUSE, FUSIBLE LINK, RELAY BLOCK (J/B) (AT RIGHT SIDE OF ENGINE COMPT) FUSE 52 GRN WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN ACC OR ON HOT IN ON OR START IGN JOINT CONNECTOR 10 (BEHIND UPPER LEFT END OF DASH) JOINT CONNECTOR 3 (BEHIND UPPER LEFT END OF DASH) JOINT CONNECTOR 7 (BEHIND UPPER LEFT SIDE OF DASH, TAPED TO HARNESS) JOINT CONNECTOR 9 (BEHIND LOWER LEFT SIDE OF DASH) LOW TIRE PRESSURE WARNING CONTROL UNIT (BEHIND CENTER OF DASH) LT BLU WIRE LT GRN WIRE MULTIFUNCTION SWITCH NCA WIRE ORG/BLU WIRE PPL RED WIRE RED/BLU WIRE RED/WHT WIRE RX STRG SHIELD SHIELD BUS (-) BUS (+) SHIELD BUS (-) BUS (+) BUS SHIELD BUS (-) BUS (+) SHIELD VP YS HP RGB GND RGB SYNC SOUND SYSTEMS SPEED AV-ME ME-AV STEERING SWITCH DATA OUT UNIFIED METER CONTROL UNIT WHT WIRE WHT/RED WIRE YEL WIRE YS RGB SYNC VP HP RGB GND

A/C SYSTEM ACRLY FPCM MOTRLY VIAS PRF- IGN 5 IGN 6 IGN 7 IGN 8 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) 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) 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 DASH) GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED 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 UPPER RIGHT SIDE OF DASH) J/C 29 LED LT BLU WIRE MALFUNCTION INDICATOR LAMP NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/BLU WIRE PNK/BLU WIRE POS POWER STEERING CONTROL UNIT (BEHIND RIGHT SIDE OF DASH) PPL PPL/WHT WIRE PRF+ PRUN IN RED WIRE RED/BLU WIRE RED/GRN 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/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE