1994 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
- T Sedan 4-Door
- Base Sedan 4-Door
- A 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
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.
INFINITI; FRONT SONAR PARKING SENSOR SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
INFINITI: LOCK/UNLOCK REQUEST BUTTON ON OUTSIDE DOOR HANDLE OUTSIDE DOOR HANDLE DOES NOT RESPOND. LOCK/UNLOCK REQUEST BUTTON LOCATED ON OUTSIDE DOOR HANDLES OF VEHICLES CAN BE DISABLED (OR ENABLED) THROUGH EITHER THE "COMFORT & CONV" SETTIN
INFINITI: VENT CONTROL VALVE REPLACEMENT. NO APPLIED VEHICLES AFFECTED: ALL MODELS; NO MODEL YEARS LISTED. *PE
INFINITI: SRS PRECAUTIONS DURING SERVICE. INCLUDED IN THE RESTRAINTS SECTION OF THE ELECTRONIC SERVICE MANUAL (ESM) FOR EACH VEHICLE IS INFORMATION NECESSARY TO SERVICE THE SUPPLEMENTAL RESTRAINT SYSTEM (SRS) SAFELY. IMPROPER MAINTENANCE, I
INFINITI: TIRE PRESSURE MONITORING SYSTEM (TPMS) WARNING LIGHT ON/BLINKING. NO MODELS OR MODEL YEARS LISTED. *PE UPDATED ON 08-11-2011. *KB
Showing the 8 most recent of 16 technical service bulletins on file with NHTSA.
A VEHICLE MADE AN ILLEGAL U-TURN IN FRONT OF MY VEHICLE AND I STRUCK HIM IN THE LEFT REAR, CAUSING HIM TO DO A COMPLETE 180 DEGREE TURN, THE FORCE WAS IN MY CENTER FRONT. THE AIRBAGS ON NEATHER SIDE
THE VEHICLE WAS HIT FROM BEHIND AND THEN PROPELLED INTO A GUARD RAIL AND THE AIRBAG DID NOT DEPLOY.PLEASE DESCRIBE. *AK
BATTERY WAS RECALLED BY MFR., WHICH EFFECTS THE ABS SYSTEM, CAUSING WHEN APPLYING BRAKES TO CRAB AND GO INTO SKID AND LOSE CONTROL IMPACT 12:00 SPEED 25 MPH.*AK
AFTER MAKING SLOW TURN, ACCELERATED GOING STRAIGHT, SUDDENLY FRONT RIGHT WHEEL LOCKED, RENDERING STEERING INOPERATIVE, DUE TO OIL AND WET ROAD, AND FISH TAILING
Showing the 4 most serious of 47 complaints filed with NHTSA.
