Repair and Diagnosis

You are viewing the "split tree" of links. The tree is cut off at a certain depth to keep the page loading fast, but you may have to click multiple links to get to the content you want.
View "full tree" with all links on one page (will load slowly, but easier to use ctrl-f to search all pages)

Expand All (for easy ctrl-f) Collapse All

• Quick Lookups
  • Common Specs & Procedures
  • DTC Index
  • Electrical Component Locations
    • OEM Component Harness Location Charts
    • QX50 - Component Locations
  • 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 (Diagnostics, Service Information)
    • Door & Lock (DTC/Circuit Diagnosis)
    • Security Control System (Diagnostics, Service Information)
    • Security Control System (DTC/Circuit Diagnosis)
  • Collision/Avoidance
    • ADAS Control Unit (Diagnostics)
    • ADAS Control Unit (DTC/Circuit Diagnosis) (1 Of 2)
    • ADAS Control Unit (DTC/Circuit Diagnosis) (2 Of 2)
    • Around View Monitor System
    • Audio, Visual & Navigation System (Diagnostics, Service Information)
    • Audio, Visual & Navigation System (DTC/Circuit Diagnosis)
    • Chassis Control
    • Cruise Control System
    • Driver Assistance System (Diagnostics, Service Information)
    • Driver Assistance System (DTC/Circuit Diagnosis)
    • Forward Emergency Braking
    • Rear Automatic Braking
    • Rear View Monitor System
    • Sonar System (Diagnostics, Service Information)
    • Sonar System (DTC/Circuit Diagnosis)
  • Communication Devices
    • Can Fundamental
    • Can Gateway System
    • Can System
  • Cruise Control Systems
    • Automatic Speed Control Device (ASCD)
    • Cruise Control System
  • Drivers Assistance Systems - ADAS
    • ADAS Control Unit (Diagnostics)
    • ADAS Control Unit (DTC/Circuit Diagnosis) (1 Of 2)
    • ADAS Control Unit (DTC/Circuit Diagnosis) (2 Of 2)
    • Around View Monitor System
    • Audio, Visual & Navigation System (Diagnostics, Service Information)
    • Audio, Visual & Navigation System (DTC/Circuit Diagnosis)
    • Chassis Control
    • Cruise Control System
    • Driver Assistance System (Diagnostics, Service Information)
    • Driver Assistance System (DTC/Circuit Diagnosis)
    • Forward Emergency Braking
    • Rear Automatic Braking
    • Rear View Monitor System
    • Sonar System (Diagnostics, Service Information)
    • Sonar System (DTC/Circuit Diagnosis)
  • Entertainment Systems
    • Audio, Visual & Navigation System (Diagnostics, Service Information)
    • Audio, Visual & Navigation System (DTC/Circuit Diagnosis)
    • Rear View Monitor System
    • Telematics System
  • Exterior Lights
    • Exterior Lighting System (Diagnostics, Service Information)
    • Exterior Lighting System (DTC/Circuit Diagnosis)
  • Gauges & Instrument Panels
    • Instrument Panel
    • Meter, Warning Lamp & Indicator (Diagnostics, Service Information)
    • Meter, Warning Lamp & Indicator (DTC/Circuit Diagnosis)
  • Headlights
    • Exterior Lighting System (Diagnostics, Service Information)
    • Exterior Lighting System (DTC/Circuit Diagnosis)
  • Heated Glass/Defoggers
    • Defogger (Circuit Diagnosis)
    • Defogger (Diagnostics, Service Information)
  • Horns
  • Infotainment
    • Audio, Visual & Navigation System (Diagnostics, Service Information)
    • Audio, Visual & Navigation System (DTC/Circuit Diagnosis)
    • Rear View Monitor System
    • Telematics System
  • Interior/Exterior Trim
    • Exterior
    • Interior
  • Interior/Illumination Lights
    • Interior Lighting System (With Extended Interior Ambient Lighting)
    • Interior Lighting System (Without Extended Interior Ambient Lighting)
    • Interior Lighting System (Without Extended Interior Ambient Lighting) (Circuit Diagnosis)
  • Mirrors
    • Mirrors
    • Mirrors (Circuit Diagnosis)
  • Seats
    • Automatic Drive Positioner (Diagnostics, Service Information)
    • Automatic Drive Positioner (DTC/Circuit Diagnosis)
    • Seats (Diagnostics, Service Information)
    • Seats (DTC/Circuit Diagnosis)
  • Warning Systems
    • Meter, Warning Lamp & Indicator (Diagnostics, Service Information)
    • Meter, Warning Lamp & Indicator (DTC/Circuit Diagnosis)
    • Warning Chime System (Circuit Diagnosis)
    • Warning Chime System (Diagnostics)
    • Wheel & Tire System (Diagnostics, Service Information)
    • Wheel & Tire System (DTC/Circuit Diagnosis)
  • Window Motors & Regulators
    • Glass & Window System
    • Power Window Control System (Circuit Diagnosis)
    • Power Window Control System (Diagnostics, Service Information)
  • Wiper/Washer Systems
    • Wiper & Washer System (Circuit Diagnosis)
    • Wiper & Washer System (Diagnostics, Service Information)
• Body & Frame
  • Door Locks
    • Door & Lock (Diagnostics, Service Information)
    • Door & Lock (DTC/Circuit Diagnosis)
    • Security Control System (Diagnostics, Service Information)
    • Security Control System (DTC/Circuit Diagnosis)
  • Exterior Body Panels
    • Door & Lock (Diagnostics, Service Information)
    • Door & Lock (DTC/Circuit Diagnosis)
    • Exterior
  • Exterior/Interior Trim
    • Exterior
    • Interior
  • Mirrors
    • Mirrors
    • Mirrors (Circuit Diagnosis)
  • Seats
    • Automatic Drive Positioner (Diagnostics, Service Information)
    • Automatic Drive Positioner (DTC/Circuit Diagnosis)
    • Seats (Diagnostics, Service Information)
    • Seats (DTC/Circuit Diagnosis)
  • Sun Roof/T-Top/Convertible Top
    • Roof (Circuit Diagnosis)
    • Roof (Diagnostics, Service Information)
  • Windows
    • Glass & Window System
    • Power Window Control System (Circuit Diagnosis)
    • Power Window Control System (Diagnostics, Service Information)
• Brakes
  • Anti-Lock Brakes
    • Brake Control System (1 Of 2)
    • Brake Control System (2 Of 2)
  • Brakes Control Systems
    • Automatic Brake Hold
    • Brake Control System (1 Of 2)
    • Brake Control System (2 Of 2)
  • Mechanical - Hydraulic
    • Brake System
  • Parking Brake System
    • Parking Brake System (Diagnostics, Service Information)
    • Parking Brake System (DTC/Circuit Diagnosis)
  • Traction Control
    • Brake Control System (1 Of 2)
    • Brake Control System (2 Of 2)
• Drivelines & Axles
  • Axle Shafts
    • Front Axle
    • Rear Axle
  • Differentials & Drive Axles
    • Front Axle
    • Rear Axle
    • Rear Final Drive
  • Driveshaft & Universal Joints
    • Rear Propeller Shaft
  • Wheel Hubs
    • Front Axle
    • Rear Axle
• Electrical
  • Body Electrical
    • Body Control System (Diagnostics, Service Information)
    • Body Control System (DTC/Circuit Diagnosis)
    • 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)
    • Power Control System (IPDM E/R) (DTC/Circuit Diagnosis)
    • Power Distribution System
    • Power Outlet
    • Power Supply, Ground & Circuit Elements
  • Charging Systems
    • Charging System (Circuit Diagnosis)
    • Charging System (Diagnostics, Service Information)
  • Component Locations
    • OEM Component Harness Location Charts
    • QX50 - Component Locations
  • 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
    • Meter, Warning Lamp & Indicator (Diagnostics, Service Information)
    • Meter, Warning Lamp & Indicator (DTC/Circuit Diagnosis)
  • Horns
  • Motors, Switches, Relays
    • Body Control System (Diagnostics, Service Information)
    • Body Control System (DTC/Circuit Diagnosis)
    • 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)
    • Power Control System (IPDM E/R) (DTC/Circuit Diagnosis)
    • Power Distribution System
    • Power Outlet
    • Power Supply, Ground & Circuit Elements
  • Starter
    • Starting System (Circuit Diagnosis)
    • Starting System (Diagnostics, Service Information)
  • 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 System (Mechanical)
    • Engine Cooling System
  • Exhaust System
  • Fuel System
  • Engine Lubrication System
  • Engine Mechanical
  • Starter
    • Starting System (Circuit Diagnosis)
    • Starting System (Diagnostics, Service Information)
• Engine Performance
  • Emissions
    • Emission Applications
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Engine Control Systems
    • Accelerator Control System
    • Drive Mode System (Circuit Diagnosis)
    • Drive Mode System (Diagnostics, Service Information)
  • Fuel Delivery
    • Fuel System
  • Specifications
    • Firing Order & Cylinder Identification
  • System
    • Engine Control System (1 Of 3)
    • Engine Control System (2 Of 3)
    • Engine Control System (3 Of 3)
    • Engine Control System (DTC/Circuit Diagnosis) (1 Of 5)
    • Engine Control System (DTC/Circuit Diagnosis) (2 Of 5)
    • Engine Control System (DTC/Circuit Diagnosis) (3 Of 5)
    • Engine Control System (DTC/Circuit Diagnosis) (4 Of 5)
    • Engine Control System (DTC/Circuit Diagnosis) (5 Of 5)
  • Testing & Diagnosis
    • Engine Control System (1 Of 3)
    • Engine Control System (2 Of 3)
    • Engine Control System (3 Of 3)
    • Engine Control System (DTC/Circuit Diagnosis) (1 Of 5)
    • Engine Control System (DTC/Circuit Diagnosis) (2 Of 5)
    • Engine Control System (DTC/Circuit Diagnosis) (3 Of 5)
    • Engine Control System (DTC/Circuit Diagnosis) (4 Of 5)
    • Engine Control System (DTC/Circuit Diagnosis) (5 Of 5)
• 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
  • 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
  • Maintenance Reminder Light (Reset Procedures)
  • Specifications Index
    • Common Specs & Procedures
  • 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)
  • A/C Compressor
    • Heater & Air Conditioning System
  • General Servicing
    • Heater & Air Conditioning System
  • HVAC Control Systems
    • Heater & Air Conditioning Control System (Diagnostics, Service Information)
    • Heater & Air Conditioning Control System (DTC/Circuit Diagnosis)
    • Heater & Air Conditioning System
    • Ventilation System
• Maintenance
  • Procedures
    • Maintenance
    • Maintenance Reminder Light (Reset Procedures)
• Restraints
  • Air Bag, SRS
    • SRS Airbag
    • SRS Airbag Control System (Diagnostics)
    • SRS Airbag Control System (DTC/Circuit Diagnosis)
  • Passive Restraints
    • Seat Belt
  • Restraints Control Systems
    • SRS Airbag Control System (Diagnostics)
    • SRS Airbag Control System (DTC/Circuit Diagnosis)
  • Seat Belts
    • SRS Airbag Control System (Diagnostics)
    • SRS Airbag Control System (DTC/Circuit Diagnosis)
• Steering
  • Electronic Steering
    • Steering Control System (Direct Adaptive Steering) (1 Of 2)
    • Steering Control System (Direct Adaptive Steering) (2 Of 2)
    • Steering Control System (Electric Power Steering) (Diagnostics, Service Information)
    • Steering Control System (Electric Power Steering) (DTC/Circuit Diagnosis)
  • Manual Steering
    • Steering System
  • Power Steering
    • Steering System
  • Steering Column
    • Steering System
  • Steering Control Systems
    • Heated Steering Wheel System (Circuit Diagnosis)
    • Steering Control System (Direct Adaptive Steering) (1 Of 2)
    • Steering Control System (Direct Adaptive Steering) (2 Of 2)
    • Steering Control System (Electric Power Steering) (Diagnostics, Service Information)
    • Steering Control System (Electric Power Steering) (DTC/Circuit Diagnosis)
  • Steering Gear
    • Steering System
  • Steering Linkage
    • Steering System
• Suspension
  • Front Suspension
  • Rear Suspension
  • INFINITI Wheel Alignment Specifications - QX50
  • Wheels & Tire System
    • Wheel & Tire System (Diagnostics, Service Information)
    • Wheel & Tire System (DTC/Circuit Diagnosis)
• Transmission
  • Automatic Trans
    • Automatic Transmission (1 Of 2)
    • Automatic Transmission (2 Of 2)
    • Automatic Transmission (DTC/Circuit Diagnosis)
  • Transmission Control Systems
    • Drive Mode System (Circuit Diagnosis)
    • Drive Mode System (Diagnostics, Service Information)
• External Pages