2004 INFINITI M45 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical coverage with wiring diagrams
- Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more
Trims covered
- Base Sedan 4-Door
Engines covered
- 4.5L 4500CC V8 GAS DOHC Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
ON CERTAIN PASSENGER VEHICLES, THE BRAKE LAMP SWITCH MAY MALFUNCTION.
IF THIS OCCURS, THE BRAKE LIGHTS WILL NOT ILLUMINATE WHEN THE BRAKE IS APPLIED, WHICH COULD RESULT I
DEALERS WILL REPLACE THE BRAKE LAMP SWITCH. THE RECALL BEGAN ON OCTOBER 25, 2004. OWNERS SHOULD CO
NISSAN IS RECALLING CERTAIN MODEL YEAR 2003-2004 INFINITI M45 VEHICLES MANUFACTURED FROM MARCH 7, 2002, THROUGH JUNE 3, 2004. DUE TO A CIRCUIT BOARD FAILURE, THE FUEL GAUGE MAY READ A FUEL LEVEL HIGH
THE VEHICLE MAY STALL WITHOUT WARNING, INCREASING THE RISK OF A CRASH.
NISSAN WILL NOTIFY OWNERS, AND DEALERS WILL MODIFY THE CIRCUIT BOARD FREE OF CHARGE. THE SAFETY RECA
CERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision damage or other vehicle repair, a replacement Certification Label or VIN Plate/Label may be needed. HINT: Certification Label = FMVSS (Federal Motor Vehi
INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
WINDOW GLASS WARRANTY INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
REMOVING FOREIGN MATERIAL FROM THE WINDOW GLASS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
WINDSHIELD CRACKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
WHEEL BEARING COLLISION DAMAGE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
REMOVING FOREIGN MATERIAL FROM THE WINDOW GLASS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
WINDSHIELD CRACKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
Showing the 8 most recent of 27 technical service bulletins on file with NHTSA.
TL* THE CONTACT OWNS A 2004 INFINITI M45. WHILE THE VEHICLE WAS STOPPED AT A RED LIGHT, THE ACCELERATOR PEDAL WAS DEPRESSED, THE ENGINE STALLED, AND ALL OF THE WARNING INDICATORS ILLUMINATED. THE VEHI
TL* THE CONTACT OWNS A 2004 INFINITI M45. WHILE DRIVING 65 MPH, THE VEHICLE STALLED WITHOUT WARNING AND FAILED TO RESTART. THE CONTACT MENTIONED THAT THE FAILURE RECURRED SEVERAL TIMES. THE VEHICLE WA
TL* THE CONTACT OWNS A 2004 INFINITI M45. WHILE DRIVING AT VARIOUS SPEEDS, THE BRAKE LIGHT DID NOT ILLUMINATE WHEN THE BRAKE PEDAL WAS DEPRESSED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFAC
TL* THE CONTACT OWNS 2004 INFINITI M45. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 60 MPH, THE VEHICLE STARTED SPUTTERING BEFORE STALLING. THE CONTACT MENTIONED THAT THE ENTIRE INSTRUMENT PANEL I
FRAME ON DRIVERS SEAT BROKEN CAUSING SEAT TO LIST TO THE LEFT SIDE. PREVIOUSLY REPAIRED BY DEALER WHO INFORMED US AT THE TIME THAT IT COULD NOT BE REPAIRED AGAIN, IT WOULD NEED TO BE REPLACED AT AT CO
Showing the 5 most serious of 49 complaints filed with NHTSA.
