2003 INFINITI M45

Infiniti M45 2003 - BUZZERS, RELAYS & TIMERS

Infiniti M45 2003 BUZZERS, RELAYS & TIMERS LOCATION

Component	Component Location
Accessory Relay	In fuse block (J/B) No. 1. See Fig. 2 .
Air Conditioner Relay	In fuse, fusible link & relay block (J/B). See Fig. 1 .
AT PV Ignition Relay	At right front of engine compartment.
Back-Up Lamp Relay	At left kick panel.
Blower Relay	In fuse block (J/B) No. 2. See Fig. 3 .
Climate Controlled Seat Relay	At right side of engine compartment.
Combination Flasher Unit	Behind lower front of center console. See Fig. 5 .
Door Mirror Defogger Relay	At left kick panel. See Fig. 2 .
ECM Relay	In fuse block (J/B) No. 2. See Fig. 3 .
Front Foglamp Relay	Behind left side of dash.
Front Wiper Relay	In fuse, fusible link & relay block (J/B). See Fig. 1 .
Fuel Pump Relay	In fuse block (J/B) No. 2. See Fig. 3 .
Headlamp Relay-1	In fuse, fusible link & relay block (J/B). See Fig. 1 .
Headlamp Relay-2	In fuse, fusible link & relay block (J/B). See Fig. 1 .
Horn Relay	In fuse, fusible link & relay block (J/B). See Fig. 1 .
ICC Brake Hold Relay	At left rear of engine compartment.
ICC Warning Chime	Below lower left side of dash.
Ignition Relay	In fuse, fusible link & relay block (J/B). See Fig. 1 .
Park/Neutral Position Relay	In fuse, fusible link & relay block (J/B). See Fig. 1 .
Rear Window Defogger & Door Mirror Defogger Relay	Behind left kick panel. See Fig. 2 .
Security Horn Relay	At left rear of engine compartment.
Taillamp Relay	In fuse, fusible link & relay block (J/B). See Fig. 1 .
Throttle Control Motor Relay	In fuse, fusible link & relay block (J/B). See Fig. 1 .
Trunk Lid Opener Relay	In fuse block (J/B) No. 1. See Fig. 2 .
VDC Relay Box	At left side of engine compartment.
Warning Chime	Behind right side of dash.

Infiniti M45 2003 - CIRCUIT PROTECTION DEVICES

Infiniti M45 2003 CIRCUIT PROTECTION DEVICES LOCATION

Component	Component Location
Engine Room Box	In right side of engine compartment. See Fig. 4 .
Fuse Block	In fuse, fusible link & relay block (J/B). See Fig. 1 .
Fuse Block (J/B) No. 1	Behind left end of dash. See Fig. 5 .
Fuse Block (J/B) No. 2	Behind right kick panel. See Fig. 5 .
Fuse, Fusible Link & Relay Block (J/B)	At right side of engine compartment. See Fig. 1 .
Fuse, Fusible Link & Relay Box	At right side of engine compartment, in engine room box.
Fusible Link	In fuse, fusible link & relay block (J/B). See Fig. 1 .

Infiniti M45 2003 - CONTROL UNITS

Infiniti M45 2003 CONTROL UNITS LOCATION

Component	Component Location
A/C Auto Amplifier	Behind right side of dash, near blower motor. See Fig. 5 .
ASCD Control Unit	Behind dash, left of steering column. See Fig. 5 .
AV Control Unit (W/O NAVI)	Behind center of dash. See Fig. 5 .
AV & NAVI Control Unit (W/NAVI)	At front center of luggage compartment. See Fig. 6 .
Body Control Module	Behind left kick panel. See Fig. 5 .
Daytime Light Control Unit	At left front corner of engine compartment.
Driver's Seat Control Unit	Under driver's seat. See Fig. 5 .
Dual Mode Muffler Control Unit	At right side of luggage compartment. See Fig. 6 .
Engine Control Module	Behind glove box. See Fig. 5 .
Fuel Pump Control Module	On right side of luggage compartment. See Fig. 6 .
Headlamp Battery Saver Control Unit	Behind left side of dash. See Fig. 5 .
ICC Unit	On right side of luggage compartment. See Fig. 6 .
Low Tire Pressure Warning Control Unit	Behind center of dash. See Fig. 5 .
NATS IMMU	Behind dash, left of steering column. See Fig. 5 .
Power Steering Control Unit	Behind right side of dash. See Fig. 5 .
Shift Lock Control Unit	Behind left side of dash. See Fig. 5 .
Steering Lock Control Unit	Behind center of dash. See Fig. 5 .
Transmission Control Module	Behind glove box. See Fig. 5 .
Trunk Closure Control Unit	At rear center of luggage compartment. See Fig. 6 .
VDC/TCS/ABS Control Unit	Behind right kick panel. See Fig. 5 .
Voice Activated Control Module	Left rear of luggage compartment. See Fig. 6 .

Infiniti M45 2003 - MOTORS

Infiniti M45 2003 MOTORS LOCATION

Component	Component Location
Air Mix Door Motor (Left)	Behind left side of dash, on heater unit.
Air Mix Door Motor (Right)	Behind right side of dash, on heater unit.
ASCD Pump	At right rear corner of engine compartment. See Fig. 4 .
Blower Motor	Below right side of dash, on intake unit.
Dual Mode Muffler Actuator	At left rear of vehicle.
Electric Throttle Control Actuator	At left rear of engine. See Fig. 4 .
Front Washer Motor	In washer fluid reservoir.
Front Wiper Motor	On left side of firewall.
Fuel Pump	Integral to fuel level sensor unit, in fuel tank.
Headlamp Aiming Motor (Left)	Behind left headlight.
Headlamp Aiming Motor (Right)	Behind right headlight.
Intake Door Motor	Under right side of dash, on intake unit.
Mode Door Motor (Left)	Behind lower left side of dash, on heater unit.
Mode Door Motor (Right)	Behind lower right side of dash, on heater unit.
Sun Roof Motor Assembly	At front of sun roof opening.
Telescopic Motor	Behind left side of dash.
Tilt Motor	Behind left side of dash.
VDC Actuator	At right rear corner of engine compartment. See Fig. 4 .

Infiniti M45 2003 - SENDING UNITS & SENSORS

Infiniti M45 2003 SENDING UNITS & SENSORS LOCATION

Component	Component Location
Air Bag Diagnosis Sensor Unit	Under rear of center console. See Fig. 5 .
Ambient Sensor	Behind center of front bumper.
Brake Pressure Sensor	At left rear corner of engine compartment.
Camshaft Position Sensor (PHASE)	On front of left cylinder head. See Fig. 4 .
Crankshaft Position Sensor (POS)	At bottom rear of engine.
Crash Zone Sensor	At center front of engine compartment.
Engine Coolant Temperature Sensor	On top rear of engine. See Fig. 4 .
EVAP Control System Pressure Sensor	Under right rear side of vehicle.
Fuel Level Sensor Unit	In fuel tank.
Heated Oxygen Sensor No. 1 (Bank No. 1)	On inlet of left manifold three-way catalyst.
Heated Oxygen Sensor No. 1 (Bank No. 2)	On inlet of right manifold three-way catalyst.
Heated Oxygen Sensor No. 2 (Bank No. 1)	On outlet of left manifold three-way catalyst.
Heated Oxygen Sensor No. 2 (Bank No. 2)	On outlet of right manifold three-way catalyst.
ICC Sensor	Behind center of front bumper.
Intake Air Temperature Sensor	Integral to mass airflow sensor. See Fig. 4 .
Intake Sensor	Behind left side of dash, on cooling unit.
Intake Valve Timing Control Position Sensor (Bank No. 1)	On front of left cylinder head. See Fig. 4 .
Intake Valve Timing Control Position Sensor (Bank No. 2)	On front of right cylinder head. See Fig. 4 .
In-Vehicle Sensor	Behind lower center of dash.
Knock Sensor (Bank No. 1)	Below left side of intake manifold. See Fig. 4 .
Knock Sensor (Bank No. 2)	Below right side of intake manifold. See Fig. 4 .
Left Side Air Bag (Satellite) Sensor	At base of left "B" pillar.
Mass Airflow Sensor	Between air duct & air cleaner housing. See Fig. 4 .
Optical Sensor	On top right side of dash.
Power Steering Pressure Sensor	At lower right side of engine.
Radiator Coolant Temperature Sensor	At bottom left side of radiator. See Fig. 4 .
Refrigerant Pressure Sensor	Front right side of engine compartment, near condenser. See Fig. 4 .
Right Side Air Bag (Satellite) Sensor	At base of right "B" pillar.
Steering Angle Sensor	Under left side of dash, right of steering column.
Sun Load Sensor	Under top left side of dash.
Telescopic Sensor	Under left side of dash, right of steering column.
Tilt Sensor	Under left side of dash, right of steering column.
Wheel Sensors (Front)	Behind respective front wheel hubs.
Wheel Sensors (Rear)	On respective rear spindle assembly.
Yaw Rate/Side G Sensor	Under center console.

Infiniti M45 2003 - SOLENOIDS & SOLENOID VALVES

Infiniti M45 2003 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Component Location
Cooling Fan Speed Control Solenoid Valve	On front of engine. See Fig. 4 .
EVAP Canister Purge Volume Control Solenoid Valve	On top rear of engine. See Fig. 4 .
EVAP Canister Vent Control Valve	Under rear of vehicle, on EVAP canister.
Fuel Lid Opener Actuator	On right side of luggage compartment.
Intake Valve Timing Control Solenoid Valve (Bank No. 1)	On top front of left cylinder head. See Fig. 4 .
Intake Valve Timing Control Solenoid Valve (Bank No. 2)	On top front of right cylinder head. See Fig. 4 .
Key Lock Solenoid	At right side of steering column.
Power Steering Solenoid Valve	On steering rack assembly.
Power Valve Actuator	Top right front of engine. See Fig. 4 .
Trunk Lid Opener Actuator	Center rear of deck lid.
Vacuum Cut Valve By-Pass Valve	Under rear of vehicle, forward of EVAP canister.
VIAS Control Solenoid Valve	Top front center of engine. See Fig. 4 .

Infiniti M45 2003 - SWITCHES

Infiniti M45 2003 SWITCHES LOCATION

Component	Component Location
ASCD Brake Switch	On bracket, above brake pedal.
Brake Fluid Level Switch	Left rear of engine compartment, on brake fluid reservoir.
Hood Switch	Near hood lock stay.
ICC Brake Switch	On bracket, above brake pedal.
Oil Pressure Switch	On front center of engine.
Parking Brake Switch	Behind left side of dash, at park brake assembly.
Stoplamp Switch	On bracket, above the brake pedal.
Trunk Room Lamp Switch	At center rear of trunk lid.
Washer Level Switch	In washer fluid reservoir.

Infiniti M45 2003 - MISCELLANEOUS

Infiniti M45 2003 MISCELLANEOUS LOCATION

Component	Component Location
Antenna Amplifier	Behind lower center of dash.
BOSE Speaker Amplifier	At center front of luggage compartment. See Fig. 6 .
Condenser	At left front side of trunk, taped to harness.
Condenser (Rear Window Defogger)	At left "C" pillar.
Data Link Connector	Under left side of dash.
Diode (Front Interior Lamp)	Behind upper left side of dash, taped to harness.
Dropping Resistor	At left side of trunk.
Joint Connectors No. 1, 2 & 3	Behind upper left end of dash, taped to harness.
Joint Connector No. 5	Behind upper left side of dash, taped to harness.
Joint Connector No. 6	Behind right end of dash.
Joint Connector No. 7	Behind upper left side of dash, taped to harness.
Joint Connectors No. 8 & 9	Behind lower left side of dash, taped to harness.
Joint Connector No. 10	Behind upper left end of dash, taped to harness.
Joint Connectors No. 11, 13, 14, 15, 16, 19 & 20	Behind upper right side of dash, taped to harness.
Joint Connector No. 21	Behind upper left side of dash, taped to harness.
Joint Connector No. 25	Behind lower left side of dash, near pass-through grommet.
Joint Connectors No. 28, 29 & 30	Behind upper right side of dash, near pass-through grommet.
NATS Antenna Amplifier	Behind lower left side of dash.
Remote Keyless Entry Receiver	At left "C" pillar.
Security Horn	At right front of engine compartment.

Infiniti M45 2003 - CONNECTORS

Infiniti M45 2003 CONNECTORS LOCATION

Component	Component Location
B5 (SMJ)	At left kick panel.
B7 (White, 24 Pin)	At left kick panel.
B21 (White, 18 Pin)	At left "B" pillar.
B61 (Gray, 24 Pin)	At right rear corner of trunk.
B62 (White, 10 Pin)	At right rear corner of trunk.
B77 (White, 2 Pin)	Under rear of center console.
B78 (Brown, 2 Pin)	At left kick panel.
B204 (Brown, 4 Pin)	At right kick panel.
B205 (White, 20 Pin)	At right kick panel.
B211 (SMJ)	Behind right side of dash.
B271 (White, 18 Pin)	At right "B" pillar.
B273 (White, 2 Pin)	Under rear of center console.
B401 (Blue, 8 Pin)	Under right rear of vehicle.
D1 (SMJ)	At top of left kick panel.
D31 (SMJ)	At top of right kick panel.
D51 (White, 18 Pin)	At left "B" pillar.
D71 (White, 18 Pin)	At right "B" pillar.
E33 (Gray, 8 Pin)	At right rear of engine compartment.
E34 (Black, 10 Pin)	At right rear of engine compartment.
E35 (Gray, 9 Pin)	At right front of engine compartment.
E205 (SMJ)	Behind left side of dash.
E206 (Yellow, 4 Pin)	Behind left side of dash.
E212 (White, 6 Pin)	Behind left side of dash.
E222 (White, 20 Pin)	At right kick panel.
E223 (White, 12 Pin)	At right kick panel.
E224 (Brown, 4 Pin)	At right kick panel.
E225 (White, 20 Pin)	At right kick panel.
E305 (Gray, 9 Pin)	At right front of engine compartment.
E315 (Gray, 10 Pin)	At front of engine.
E316 (Brown, 3 Pin)	At front of engine.
F5 (Gray, 10 Pin)	At left front corner of engine compartment.
F6 (Black, 3 Pin)	At left front corner of engine compartment.
F21 (Green, 6 Pin)	At left rear of engine.
F24 (Blue, 2 Pin)	At left rear of engine.
F33 (Gray, 8 Pin)	At right side of engine compartment.
F34 (Black, 10 Pin)	At right side of engine compartment.
F40 (Dark Gray, 4 Pin)	At right rear of engine.
F41 (Green, 6 Pin)	At right side of engine compartment.
F105 (SMJ)	Behind right end of dash.
F201 (Green, 6 Pin)	At left rear of engine.
F221 (Green, 6 Pin)	At right rear of engine.
F241 (Black, 4 Pin)	At right rear of engine.
F261 (Blue, 2 Pin)	At left rear corner of engine compartment.
M5 (SMJ)	At left kick panel.
M7 (White, 24 Pin)	At left kick panel.
M11 (SMJ)	At left top of dash.
M12 (White, 12 Pin)	At left end of dash.
M15 (SMJ)	At left end of dash.
M16 (Yellow, 4 Pin)	At left end of dash.
M61 (White, 4 Pin)	Behind center of dash.
M111 (White, 4 Pin)	Behind upper right side of dash.
M132 (White, 20 Pin)	At right kick panel.
M133 (White, 12 Pin)	At right kick panel.
M135 (SMJ)	At right kick panel.
M141 (SMJ)	At right kick panel.
M142 (SMJ)	At right kick panel.
M146 (Brown, 2 Pin)	At left kick panel.
M401 (White, 4 Pin)	Under left side of dash.
M411 (White, 4 Pin)	Behind top right side of dash.
R3 (White, 12 Pin)	At base of left "A" pillar.

Infiniti M45 2003 - GROUNDS

Infiniti M45 2003 GROUNDS LOCATION

Component	Component Location
B16	At left front door sill.
B17	At left front door sill.
B57	At center rear of trunk. See Fig. 6 .
B216	At right front door sill.
B217	At right front door sill.
B256	At right front corner of trunk. See Fig. 6 .
B257	At right front corner of trunk. See Fig. 6 .
B422	At right "C" pillar. See Fig. 6 .
E24	At right side of engine compartment. See Fig. 4 .
E42	At right front corner of engine compartment. See Fig. 4 .
E62	At left front corner of engine compartment. See Fig. 4 .
E67	At left side of engine compartment. See Fig. 4 .
E69	At left side of engine compartment. See Fig. 4 .
E307	At right front of engine compartment.
F8	At left front of engine, near oil level gauge. See Fig. 4 .
F9	At left front of engine, near oil level gauge. See Fig. 4 .
M24	Behind left side of dash. See Fig. 5 .
M25	Behind left side of dash. See Fig. 5 .
M114	Behind right side of dash. See Fig. 5 .
M115	Behind right side of dash. See Fig. 5 .