Repair and Diagnosis

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• Quick Lookups
  • Common Specs & Procedures (Except Hybrid)
  • DTC Index (Except Hybrid)
  • Electrical Component Locations
    • OEM Component Harness Location Charts
    • Q70 - Component Locations (Except Hybrid)
  • Fluids
  • Technical Bulletins
    • Campaigns
    • Safety Recalls
    • Technical Service Bulletins
  • Tire Fitment
  • Wiring Diagrams
    • OEM Component Harness Location Charts
    • OEM Connector End Views (1 Of 2)
    • OEM Connector End Views (2 Of 2)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Accessories & Equipment
  • Anti-Theft Systems
    • Door & Lock (DTC/Circuit Diagnosis) (Except Hybrid)
    • Door & Lock (Introduction, Wiring Diagrams And Basic Inspection) (Except Hybrid)
    • Door & Lock (Symptom Diagnosis & Removal And Installation) (Except Hybrid)
    • Security Control System (DTC/Circuit Diagnosis) (Except Hybrid)
    • Security Control System (Except Hybrid)
  • Collision/Avoidance
    • Cruise Control System (ASCD) (Except Hybrid)
    • Cruise Control System (ICC) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Cruise Control System (ICC) (Except Hybrid)
    • Driver Assistance System (ADAS Control Unit) (DTCS) (Except Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Introduction, Wiring Diagrams And Basic Inspection) (Except Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Removal And Installation) (Except Hybrid)
    • Driver Assistance System (Basic Inspection, Symptom Diagnosis & Removal And Installation) (Except Hybrid)
    • Driver Assistance System (Driver Assistance System) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Driver Assistance System (Introduction) (Except Hybrid)
    • Forward Emergency Braking (Except Hybrid)
  • Communication Devices
    • Body Control System (DTC/Circuit Diagnosis) (Except Hybrid)
    • Body Control System (Except Hybrid)
    • LAN System (Can Fundamental) (Except Hybrid)
    • LAN System (Can Gateway) (DTCS) (Except Hybrid)
    • LAN System (Can Gateway) (Except Hybrid)
    • LAN System (Can System) (Type 1) (Except Hybrid)
    • LAN System (Can System) (Type 10) (Except Hybrid)
    • LAN System (Can System) (Type 11) (Except Hybrid)
    • LAN System (Can System) (Type 12) (Except Hybrid)
    • LAN System (Can System) (Type 2) (Except Hybrid)
    • LAN System (Can System) (Type 3) (Except Hybrid)
    • LAN System (Can System) (Type 4) (Except Hybrid)
    • LAN System (Can System) (Type 5) (Except Hybrid)
    • LAN System (Can System) (Type 6) (Except Hybrid)
    • LAN System (Can System) (Type 7) (Except Hybrid)
    • LAN System (Can System) (Type 8) (Except Hybrid)
    • LAN System (Can System) (Type 9) (Except Hybrid)
    • LAN System (Can) (Except Hybrid)
  • Cruise Control Systems
    • Cruise Control System (ASCD) (Except Hybrid)
    • Cruise Control System (ICC) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Cruise Control System (ICC) (Except Hybrid)
    • Driver Assistance System (ADAS Control Unit) (DTCS) (Except Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Introduction, Wiring Diagrams And Basic Inspection) (Except Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Removal And Installation) (Except Hybrid)
    • Driver Assistance System (Basic Inspection, Symptom Diagnosis & Removal And Installation) (Except Hybrid)
    • Driver Assistance System (Driver Assistance System) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Driver Assistance System (Introduction) (Except Hybrid)
  • Drivers Assistance Systems - ADAS
    • Cruise Control System (ASCD) (Except Hybrid)
    • Cruise Control System (ICC) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Cruise Control System (ICC) (Except Hybrid)
    • Driver Assistance System (ADAS Control Unit) (DTCS) (Except Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Introduction, Wiring Diagrams And Basic Inspection) (Except Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Removal And Installation) (Except Hybrid)
    • Driver Assistance System (Basic Inspection, Symptom Diagnosis & Removal And Installation) (Except Hybrid)
    • Driver Assistance System (Driver Assistance System) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Driver Assistance System (Introduction) (Except Hybrid)
    • Forward Emergency Braking (Except Hybrid)
  • Entertainment Systems
    • Audio, Visual & Navigation System (Base Audio Without Navigation) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Audio, Visual & Navigation System (Base Audio Without Navigation) (Except Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (DTCS) (Except Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (Introduction, Wiring Diagrams And Basic Inspection) (Except Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (Symptom Diagnosis & Removal And Installation) (Except Hybrid)
    • Audio, Visual & Navigation System (Telematics System) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Audio, Visual & Navigation System (Telematics System) (Except Hybrid)
  • Exterior Lights
    • Exterior Lighting System (DTC/Circuit Diagnosis) (Except Hybrid)
    • Exterior Lighting System (Except Hybrid)
  • Gauges & Instrument Panels
    • Instrument Panel (Except Hybrid)
    • Meter, Warning Lamp & Indicator (DTC/Circuit Diagnosis) (Except Hybrid)
    • Meter, Warning Lamp & Indicator (Except Hybrid)
  • Headlights
    • Exterior Lighting System (DTC/Circuit Diagnosis) (Except Hybrid)
    • Exterior Lighting System (Except Hybrid)
  • Heated Glass/Defoggers
    • Defogger (Except Hybrid)
  • Horns
    • Horn (Except Hybrid)
  • Infotainment
    • Audio, Visual & Navigation System (Base Audio Without Navigation) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Audio, Visual & Navigation System (Base Audio Without Navigation) (Except Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (DTCS) (Except Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (Introduction, Wiring Diagrams And Basic Inspection) (Except Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (Symptom Diagnosis & Removal And Installation) (Except Hybrid)
    • Audio, Visual & Navigation System (Telematics System) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Audio, Visual & Navigation System (Telematics System) (Except Hybrid)
  • Interior/Exterior Trim
    • Interior (Except Hybrid)
  • Interior/Illumination Lights
    • Interior Lighting System
  • Mirrors (Except Hybrid)
  • Seats
    • Automatic Drive Positioner (DTC/Circuit Diagnosis) (Except Hybrid)
    • Automatic Drive Positioner (Except Hybrid)
    • Seats (Except Hybrid)
  • Warning Systems
    • Cruise Control System (ASCD) (Except Hybrid)
    • Cruise Control System (ICC) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Cruise Control System (ICC) (Except Hybrid)
    • Driver Assistance System (ADAS Control Unit) (DTCS) (Except Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Introduction, Wiring Diagrams And Basic Inspection) (Except Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Removal And Installation) (Except Hybrid)
    • Driver Assistance System (Basic Inspection, Symptom Diagnosis & Removal And Installation) (Except Hybrid)
    • Driver Assistance System (Driver Assistance System) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Driver Assistance System (Introduction) (Except Hybrid)
    • Tires, Wheels & Tire Pressure Monitoring System (TPMS) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Tires, Wheels & Tire Pressure Monitoring System (TPMS) (Except Hybrid)
    • Warning Chime System (Except Hybrid)
  • Window Motors & Regulators
    • Glass & Window System (Except Hybrid)
    • Power Window Control System (Except Hybrid)
  • Wiper/Washer Systems
    • Wiper & Washer System (Except Hybrid)
• Body & Frame
  • Door Locks
    • Door & Lock (DTC/Circuit Diagnosis) (Except Hybrid)
    • Door & Lock (Introduction, Wiring Diagrams And Basic Inspection) (Except Hybrid)
    • Door & Lock (Symptom Diagnosis & Removal And Installation) (Except Hybrid)
    • Security Control System (DTC/Circuit Diagnosis) (Except Hybrid)
    • Security Control System (Except Hybrid)
  • Exterior Body Panels
    • Door & Lock (Symptom Diagnosis & Removal And Installation) (Except Hybrid)
    • Exterior (Except Hybrid)
  • Exterior/Interior Trim
    • Interior (Except Hybrid)
  • Mirrors (Except Hybrid)
  • Seats
    • Automatic Drive Positioner (DTC/Circuit Diagnosis) (Except Hybrid)
    • Automatic Drive Positioner (Except Hybrid)
    • Seats (Except Hybrid)
  • Sun Roof/T-Top/Convertible Top
    • Roof (Except Hybrid)
  • Windows
    • Glass & Window System (Except Hybrid)
    • Power Window Control System (Except Hybrid)
• Brakes
  • Anti-Lock Brakes
    • Brake Control System (With VDC) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Brake Control System (With VDC) (Except Hybrid)
  • Brakes Control Systems
    • Brake Control System (With VDC) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Brake Control System (With VDC) (Except Hybrid)
  • Mechanical - Hydraulic
    • Brake System (Except Hybrid)
  • Parking Brake System (Except Hybrid)
  • Traction Control
    • Brake Control System (With VDC) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Brake Control System (With VDC) (Except Hybrid)
• Drivelines & Axles
  • Axle Shafts
    • Front Axle (2WD) (Except Hybrid)
    • Rear Axle (Except Hybrid)
  • Differentials & Drive Axles
    • Front Final Drive (Except Hybrid)
    • Rear Axle (Except Hybrid)
    • Rear Final Drive (R200) (Except Hybrid)
    • Rear Final Drive (R208) (Except Hybrid)
  • Driveshaft & Universal Joints
    • Front Propeller Shaft (Except Hybrid)
    • Rear Propeller Shaft (3F80A-R) (Except Hybrid)
    • Rear Propeller Shaft (3S80A-R) (Except Hybrid)
  • Wheel Hubs
    • Front Axle (2WD) (Except Hybrid)
    • Rear Axle (Except Hybrid)
• Electrical
  • Body Electrical
    • OEM Component Harness Location Charts
    • OEM Connector End Views (1 Of 2)
    • OEM Connector End Views (2 Of 2)
    • Power Control System (IPDM E/R) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Power Control System (IPDM E/R) (Except Hybrid)
    • Power Control System (Power Distribution System) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Power Control System (Power Distribution System) (Except Hybrid)
    • Power Outlet (Except Hybrid)
    • Power Supply, Ground & Circuit Elements (Except Hybrid)
  • Charging Systems
    • Charging System (Except Hybrid)
  • Component Locations
    • OEM Component Harness Location Charts
    • Q70 - Component Locations (Except Hybrid)
  • Fuses & Circuit Breakers
    • OEM Component Harness Location Charts
    • OEM Connector End Views (1 Of 2)
    • OEM Connector End Views (2 Of 2)
  • Gauges
    • Instrument Panel (Except Hybrid)
    • Meter, Warning Lamp & Indicator (DTC/Circuit Diagnosis) (Except Hybrid)
    • Meter, Warning Lamp & Indicator (Except Hybrid)
  • Horns
    • Horn (Except Hybrid)
  • Motors, Switches, Relays
    • OEM Component Harness Location Charts
    • OEM Connector End Views (1 Of 2)
    • OEM Connector End Views (2 Of 2)
    • Power Control System (IPDM E/R) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Power Control System (IPDM E/R) (Except Hybrid)
    • Power Control System (Power Distribution System) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Power Control System (Power Distribution System) (Except Hybrid)
    • Power Outlet (Except Hybrid)
    • Power Supply, Ground & Circuit Elements (Except Hybrid)
  • Starter
    • Starting System (Except Hybrid)
  • Wiring Diagrams
    • OEM Component Harness Location Charts
    • OEM Connector End Views (1 Of 2)
    • OEM Connector End Views (2 Of 2)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Engine Mechanical
  • Cooling Fan
    • Engine Cooling System (VQ37VHR) (Except Hybrid)
  • Cooling System (Mechanical)
    • Engine Cooling System (VQ37VHR) (Except Hybrid)
  • Exhaust System (Except Hybrid)
  • Fuel System (Except Hybrid)
  • Engine Lubrication System (VQ37VHR) (Except Hybrid)
  • Engine Mechanical (VQ37VHR) (Except Hybrid)
  • Starter
    • Starting System (Except Hybrid)
• Engine Performance
  • Emissions
    • Emission Applications
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Engine Control Systems
    • Accelerator Control System (Except Hybrid)
    • Drive Mode Selector (Except Hybrid)
  • Fuel Delivery
    • Fuel System (Except Hybrid)
  • Mode 6 - INFINITI
  • Specifications
    • Firing Order & Cylinder Identification
  • System
    • Engine Control System (Basic Inspection) (VK56VD) (Except Hybrid)
    • Engine Control System (Basic Inspection) (VQ37VHR) (Except Hybrid)
    • Engine Control System (DTC/Circuit Diagnosis) (VQ37VHR) (Except Hybrid) (3 Of 3)
    • Engine Control System (DTCS) (VQ37VHR) (Except Hybrid) (1 Of 3)
    • Engine Control System (DTCS) (VQ37VHR) (Except Hybrid) (2 Of 3)
    • Engine Control System (Introduction) (VQ37VHR) (Except Hybrid)
    • Engine Control System (Symptom Diagnosis & Removal And Installation) (VK56VD) (Except Hybrid)
    • Engine Control System (Symptom Diagnosis & Removal And Installation) (VQ37VHR) (Except Hybrid)
  • Testing & Diagnosis
    • Engine Control System (Basic Inspection) (VK56VD) (Except Hybrid)
    • Engine Control System (Basic Inspection) (VQ37VHR) (Except Hybrid)
    • Engine Control System (DTC/Circuit Diagnosis) (VQ37VHR) (Except Hybrid) (3 Of 3)
    • Engine Control System (DTCS) (VQ37VHR) (Except Hybrid) (1 Of 3)
    • Engine Control System (DTCS) (VQ37VHR) (Except Hybrid) (2 Of 3)
    • Engine Control System (Introduction) (VQ37VHR) (Except Hybrid)
    • Engine Control System (Symptom Diagnosis & Removal And Installation) (VK56VD) (Except Hybrid)
    • Engine Control System (Symptom Diagnosis & Removal And Installation) (VQ37VHR) (Except Hybrid)
• General Information
  • Abbreviations
    • Commonly Used Abbreviations - General Information
    • Emission Control Abbreviations
  • Basic Trouble Shooting
    • Basic Trouble Shooting - General Information
    • Commonly Used Abbreviations - General Information
    • Emission Control Abbreviations
    • Engine Performance - Trouble Shooting - General Information
  • Brakes
    • Anti-Lock Brake Safety Precautions - General Information
    • Map - Brake Systems
    • Map - Routine Inspection Reference Guide
  • Check Lists
    • Symptom Check List Worksheet - General Information
  • Driveline/Axles
    • Drive Axle Noise Diagnosis - General Information
    • Gear Tooth Contact Patterns - General Information
    • Map - Drive Train & Transmission
    • Trouble Shooting - Clutches - General Information
  • DTC Index (Except Hybrid)
  • Electrical
    • Map - Electrical Systems
    • Using lemon2025'S System Wiring Diagrams
  • Engine
    • Engine Overhaul Procedures - General Information
    • General Cooling System Service - General Information
  • Engine Performance
    • Electrostatic Discharge Warning - General Information
    • Engine Performance Diagnostic Routine Outline - General Information
    • Engine Performance Safety Precautions
    • Map - Engine Performance & Maintenance
    • Parasitic Load Explanation & Test Procedures - General Information
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
    • Waveforms - Injector Pattern Tutorial - General Information
  • Map - Exhaust Systems
  • Heating, Ventilation & A/C (HVAC)
    • Map - Heating, Ventilation, & Air Conditioning
  • Identification
    • CANADIAN Model Cross-Reference
  • Metric Conversions
    • Engine Displacement Conversion Table - ECAT
    • Metric Conversions
  • OEM General Information
    • Automatic Stop/Start Disable
    • General Information (Except Hybrid)
  • Reset Procedures
    • Maintenance Reminder Light (Reset Procedures)
    • Tire Pressure Monitor Systems
  • Specifications Index
    • Common Specs & Procedures (Except Hybrid)
  • Steering
    • Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
    • Wheel Alignment Theory & Operation - General Information
  • Traction Control Disable Procedures
  • Trouble Shooting - Manual Transmission - General Information
• Heating, Ventilation & A/C (HVAC)
  • HVAC Control Systems
    • Heater & Air Conditioning Control System (DTC/Circuit Diagnosis) (Except Hybrid)
    • Heater & Air Conditioning Control System (Except Hybrid)
    • Heater & Air Conditioning System (Except Hybrid)
    • Ventilation System (Except Hybrid)
• Maintenance
  • Procedures
    • Maintenance (Except Hybrid)
    • Maintenance Reminder Light (Reset Procedures)
• Restraints
  • Air Bag, SRS
    • SRS Airbag Control System (DTCS) (Except Hybrid)
    • SRS Airbag Control System (Except Hybrid)
    • SRS Airbag System (Except Hybrid)
  • Restraints Control Systems
    • Seat Belt Control System (DTC/Circuit Diagnosis) (Except Hybrid)
    • Seat Belt Control System (Except Hybrid)
    • Seat Belts (Except Hybrid)
  • Seat Belts
    • Seat Belt Control System (DTC/Circuit Diagnosis) (Except Hybrid)
    • Seat Belt Control System (Except Hybrid)
    • Seat Belts (Except Hybrid)
• Steering
  • Electronic Steering
    • Steering Control System (Except Hybrid)
  • Manual Steering
    • Steering System (Except Hybrid)
  • Power Steering
    • Steering System (Except Hybrid)
  • Steering Column
    • Steering System (Except Hybrid)
  • Steering Control Systems
    • Steering Control System (Except Hybrid)
  • Steering Gear
    • Steering System (Except Hybrid)
  • Steering Linkage
    • Steering System (Except Hybrid)
• Suspension
  • Front Suspension (2WD) (Except Hybrid)
  • Rear Suspension (Except Hybrid)
  • INFINITI Wheel Alignment Specifications - Q70
  • Wheels & Tire System
    • Tires, Wheels & Tire Pressure Monitoring System (TPMS) (DTC/Circuit Diagnosis) (Except Hybrid)
    • Tires, Wheels & Tire Pressure Monitoring System (TPMS) (Except Hybrid)
• Transmission
  • Automatic Trans
    • Automatic Transmission (DTC/Circuit Diagnosis) (Except Hybrid)
    • Automatic Transmission (DTCS) (Except Hybrid)
    • Automatic Transmission (Introduction, Wiring Diagrams And Basic Inspection) (Except Hybrid)
    • Automatic Transmission (Removal And Installation) (Except Hybrid)
    • Automatic Transmission (Symptom Diagnosis) (Except Hybrid)
  • Transmission Control Systems
    • Drive Mode Selector (Except Hybrid)
• External Pages