2004 INFINITI QX56 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 Sport Utility 4-Door
Engines covered
- 5.6L 5552CC 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
NISSAN IS RECALLING CERTAIN MODEL YEAR 2004-2006 ARMADA, TITAN, INFINITI QX56 AND MODEL YEAR 2005-2006 FRONTIER, PATHFINDER AND XTERRA VEHICLES. THE INTELLIGENT POWER DISTRIBUTION MODULE (IPDM) ASSEM
THIS COULD CAUSE ENGINE STALLING INCREASING THE RISK OF A CRASH.
DEALERS WILL REPLACE THE ECM RELAY INSIDE THE IPDM ASSEMBLY. THIS SERVICE WILL BE PERFORMED FREE OF
NISSAN IS RECALLING CERTAIN FRONT AND REAR LOWER LINKS, P/NOS. 54501ZQ00A, 54500ZQ00A, 551A1ZQ00A, 551A0ZQ00A , 54501EA00A, 54500EA00A, 551A1EA500, 551A0EA500, 54501ZR00A, AND 54500ZR00A, SOLD BETWEEN
IF THE COLLAR WELD SEPARATES, THE VEHICLE HANDLING WILL DETERIORATE, POSSIBLY RESULTING IN A VEHICLE
NISSAN WILL NOTIFY OWNERS AND DEALERS WILL REPLACE ANY AFFECTED LOWER LINK FREE OF CHARGE. THE SAFE
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 69 technical service bulletins on file with NHTSA.
TL* THE CONTACT OWNS A 2004 INFINITI Q-X56. THE VEHICLE WAS HAVING A ROUTINE OIL CHANGE WHEN THE DEALER INFORMED HIM THAT THE FRONT BRAKE PADS WERE DEFECTIVE. THE BRAKE PADS WERE REPLACED AT THAT TIME
AT APPROXIMATELY 8K MILES THE DEALER REPLACED THE ROTORS AND CALIPERS PER THEIR SERVICE BULLETIN WHICH SEEMED TO SOLVE THE PROBLEM. SINCE THEN, PERIODICALLY WHILE DRIVING, THE BRAKE LIGHT WILL ILLUMI
CONSUMER'S VEHICLE WAS IN A HEAD ON COLLISION WHILE DRIVING AT APPROXIMATELY 45 MPH. UPON IMPACT, THE AIR BAGS FAILED TO DEPLOY. *AK
THE VEHICLE DIED WHEN AT A STOP LIGHT AND ROLLED BACK HITTING THE CAR BEHIND US. I LOOKED ON YOUR WEBSITE AND APPARENTLY IT WAS CAUSED BY A FAULTY ENGINE CONTROL MODULE (ECM) IN THE INTELLIGENT POWER
THE VEHICLE DIED WHEN AT A STOP LIGHT AND ROLLED BACK HITTING THE CAR BEHIND US. I LOOKED ON YOUR WEBSITE AND APPARENTLY IT WAS CAUSED BY A FAULTY ENGINE CONTROL MODULE (ECM) IN THE INTELLIGENT POWER
Showing the 5 most serious of 147 complaints filed with NHTSA.
