2005 INFINITI Q45 Service and Repair Manual

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Factory-Grade Data

2005 INFINITI Q45 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

  • Premium Sedan 4-Door
  • Base Sedan 4-Door
  • Convenience Sedan 4-Door

Engines covered

  • 4.5L 4494CC 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

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Vehicle Safety Data

2005 INFINITI Q45 Recalls & Complaints

NHTSA #05V37400029/08/2005Component: CHILD SEAT:LATCH STRAP

CERTAIN PASSENGER VEHICLES EQUIPPED WITH POWER REAR SEATS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, "CHILD RESTRAINT ANCHORAGE SYSTEMS." THE LOWER ANCHORA

Consequence

IF A CHILD SEAT IS NOT SECURED, THERE IS AN INCREASED RISK OF INJURY IN A CRASH.

Remedy

DEALERS WILL REPLACE THE LOWER ANCHORAGE BRACKETS WITH MODIFIED ONES TO ENSURE THAT THE STANDARD IS

NHTSA #12V07900028/02/2012Component: AIR BAGS:SIDE/WINDOW

NISSAN IS RECALLING CERTAIN MODEL YEAR 2003-2005 INFINITI Q45 VEHICLES. A WIRING CONNECTOR FOR THE SEAT MOUNTED AIRBAG MAY EXPERIENCE INCREASED ELECTRICAL RESISTANCE, RESULTING IN THE NON-DEPLOYMENT

Consequence

NON-DEPLOYMENT OF SIDE AIR BAGS COULD INCREASE THE RISK OF PERSONAL INJURY.

Remedy

NISSAN WILL NOTIFY OWNERS, AND DEALERS WILL MODIFY THE WIRING CONNECTOR, FREE OF CHARGE. THE SAFETY

TSB #11031720

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

TSB #11002539

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.

TSB #11002537

CAN COMMUNICATION NETWORK DIAGNOSTIC FLOW CHART This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.

TSB #11001653

CAN COMMUNICATION CODES DIAGNOSTIC TIPS AND GUIDELINES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.

TSB #11001182

WINDOW GLASS WARRANTY INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.

TSB #11001179

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.

TSB #11001177

WINDSHIELD CRACKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.

TSB #10233611

ABS/VDC CAN DIAGNOSIS INFORMATION 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 64 technical service bulletins on file with NHTSA.

20120620Component: AIR BAGSCrash reported1 injured

TL* THE CONTACT OWNS A 2005 INFINITI Q45. THE CONTACT STATED THAT WHILE DRIVING 35 MPH, ANOTHER VEHICLE CRASHED INTO HER PASSENGER SIDE. THE AIR BAGS DID NOT DEPLOY AND THE FRONT DRIVER'S SEAT TWISTED

20120620Component: SEATSCrash reported1 injured

TL* THE CONTACT OWNS A 2005 INFINITI Q45. THE CONTACT STATED THAT WHILE DRIVING 35 MPH, ANOTHER VEHICLE CRASHED INTO HER PASSENGER SIDE. THE AIR BAGS DID NOT DEPLOY AND THE FRONT DRIVER'S SEAT TWISTED

20190126Component: VEHICLE SPEED CONTROL

WHEN CRUISE CONTROL IS SET, AND THE NEED TO PASS OR SPEED UP IS REQUIRED, IF YOU PRESS THE GAS PEDAL TO THE FLOOR THE CAR TAKES OFF AND *THEN STOPS RESPONDING AND DROPS BACK TO SET CRUISE CONTROL SPEE

20110114Component: TIRES

I PURCHASED 4 NEW TIRES FOR MY VEHICLE ON 7/24/2010 THE TIRES IN QUESTION ARE MICHELIN P245/45R18 PRIMACY MXV4 96V. AFTER ONLY 3500 MILES THE REAR RIGHT TIRE BLEW ON THE HIGHWAY, FORTUNATELY FOR ME TH

20071017Component: ELECTRICAL SYSTEM:IGNITION

TL*THE CONTACT OWNS A 2005 INFINITI Q45. WHILE THE VEHICLE WAS PARKED, THE CONTACT ATTEMPTED TO START THE VEHICLE; HOWEVER, THE KEY WOULD NOT TURN IN THE IGNITION. SHE CALLED AAA TO GET THE VEHICLE

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