Repair and Diagnosis

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• Quick Lookups
  • Common Specs & Procedures (Hybrid)
  • DTC Index (Hybrid)
  • Electrical Component Locations
    • OEM Component Harness Location Charts
    • Q70 - Component Locations (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) (Hybrid)
    • Door & Lock (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Door & Lock (Symptom Diagnosis & Removal And Installation) (Hybrid)
    • Security Control System (DTC/Circuit Diagnosis) (Hybrid)
    • Security Control System (Hybrid)
  • Collision/Avoidance
    • Cruise Control System (ASCD) (Hybrid)
    • Cruise Control System (ICC) (DTC/Circuit Diagnosis) (Hybrid)
    • Cruise Control System (ICC) (Hybrid)
    • Driver Assistance System (ADAS Control Unit) (DTCS) (Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Removal And Installation) (Hybrid)
    • Driver Assistance System (Basic Inspection, Symptom Diagnosis & Removal And Installation) (Hybrid)
    • Driver Assistance System (DTC/Circuit Diagnosis) (Hybrid)
    • Driver Assistance System (System Description) (Hybrid)
    • Forward Emergency Braking (Hybrid)
  • Communication Devices
    • Body Control System (DTC/Circuit Diagnosis) (Hybrid)
    • Body Control System (Hybrid)
    • LAN System (Can Fundamental) (Hybrid)
    • LAN System (Can Gateway) (DTCS) (Hybrid)
    • LAN System (Can Gateway) (Hybrid)
    • LAN System (Can System) (Type 1) (Hybrid)
    • LAN System (Can System) (Type 2) (Hybrid)
    • LAN System (Can System) (Type 3) (Hybrid)
    • LAN System (Can) (Basic Inspection And DTC/Circuit Diagnosis) (Hybrid)
    • LAN System (Can) (Introduction) (Hybrid)
  • Cruise Control Systems
    • Cruise Control System (ASCD) (Hybrid)
    • Cruise Control System (ICC) (DTC/Circuit Diagnosis) (Hybrid)
    • Cruise Control System (ICC) (Hybrid)
    • Driver Assistance System (ADAS Control Unit) (DTCS) (Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Removal And Installation) (Hybrid)
    • Driver Assistance System (Basic Inspection, Symptom Diagnosis & Removal And Installation) (Hybrid)
    • Driver Assistance System (DTC/Circuit Diagnosis) (Hybrid)
    • Driver Assistance System (System Description) (Hybrid)
  • Drivers Assistance Systems - ADAS
    • Cruise Control System (ASCD) (Hybrid)
    • Cruise Control System (ICC) (DTC/Circuit Diagnosis) (Hybrid)
    • Cruise Control System (ICC) (Hybrid)
    • Driver Assistance System (ADAS Control Unit) (DTCS) (Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Removal And Installation) (Hybrid)
    • Driver Assistance System (Basic Inspection, Symptom Diagnosis & Removal And Installation) (Hybrid)
    • Driver Assistance System (DTC/Circuit Diagnosis) (Hybrid)
    • Driver Assistance System (System Description) (Hybrid)
    • Forward Emergency Braking (Hybrid)
  • Entertainment Systems
    • Audio, Visual & Navigation System (Base Audio Without Navigation) (DTC/Circuit Diagnosis) (Hybrid)
    • Audio, Visual & Navigation System (Base Audio Without Navigation) (Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (DTC/Circuit Diagnosis) (Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (DTCS) (Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (Symptom Diagnosis & Removal And Installation) (Hybrid)
    • Audio, Visual & Navigation System (Telematics System) (DTC/Circuit Diagnosis) (Hybrid)
    • Audio, Visual & Navigation System (Telematics System) (Hybrid)
  • Exterior Lights
    • Exterior Lighting System (DTC/Circuit Diagnosis) (Hybrid)
    • Exterior Lighting System (Hybrid)
  • Gauges & Instrument Panels
    • Instrument Panel (Hybrid)
    • Meter, Warning Lamp & Indicator (DTC/Circuit Diagnosis) (Hybrid)
    • Meter, Warning Lamp & Indicator (Hybrid)
  • Headlights
    • Exterior Lighting System (DTC/Circuit Diagnosis) (Hybrid)
    • Exterior Lighting System (Hybrid)
  • Heated Glass/Defoggers
    • Defogger (Hybrid)
  • Horns
    • Horn (Hybrid)
  • Infotainment
    • Audio, Visual & Navigation System (Base Audio Without Navigation) (DTC/Circuit Diagnosis) (Hybrid)
    • Audio, Visual & Navigation System (Base Audio Without Navigation) (Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (DTC/Circuit Diagnosis) (Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (DTCS) (Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Audio, Visual & Navigation System (BOSE Audio With Navigation) (Symptom Diagnosis & Removal And Installation) (Hybrid)
    • Audio, Visual & Navigation System (Telematics System) (DTC/Circuit Diagnosis) (Hybrid)
    • Audio, Visual & Navigation System (Telematics System) (Hybrid)
  • Interior/Exterior Trim
    • Interior (Hybrid)
  • Interior/Illumination Lights
    • Interior Lighting System (Hybrid)
  • Mirrors (Hybrid)
  • Seats
    • Automatic Drive Positioner (DTC/Circuit Diagnosis) (Hybrid)
    • Automatic Drive Positioner (Hybrid)
    • Seats (Hybrid)
  • Warning Systems
    • Approaching Vehicle Sound For Pedestrians (VSP)
    • Approaching Vehicle Sound For Pedestrians (VSP) (DTC/Circuit Diagnosis) (Hybrid)
    • Cruise Control System (ASCD) (Hybrid)
    • Cruise Control System (ICC) (DTC/Circuit Diagnosis) (Hybrid)
    • Cruise Control System (ICC) (Hybrid)
    • Driver Assistance System (ADAS Control Unit) (DTCS) (Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Removal And Installation) (Hybrid)
    • Driver Assistance System (Basic Inspection, Symptom Diagnosis & Removal And Installation) (Hybrid)
    • Driver Assistance System (DTC/Circuit Diagnosis) (Hybrid)
    • Driver Assistance System (System Description) (Hybrid)
    • Tires, Wheels & Tire Pressure Monitoring System (TPMS) (DTC/Circuit Diagnosis) (Hybrid)
    • Tires, Wheels & Tire Pressure Monitoring System (TPMS) (Hybrid)
    • Warning Chime System (Hybrid)
  • Window Motors & Regulators
    • Glass & Window System (Hybrid)
    • Power Window Control System (Hybrid)
  • Wiper/Washer Systems
    • Wiper & Washer System (Hybrid)
• Body & Frame
  • Door Locks
    • Door & Lock (DTC/Circuit Diagnosis) (Hybrid)
    • Door & Lock (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Door & Lock (Symptom Diagnosis & Removal And Installation) (Hybrid)
    • Security Control System (DTC/Circuit Diagnosis) (Hybrid)
    • Security Control System (Hybrid)
  • Exterior Body Panels
    • Door & Lock (Symptom Diagnosis & Removal And Installation) (Hybrid)
    • Exterior (Hybrid)
  • Exterior/Interior Trim
    • Interior (Hybrid)
  • Mirrors (Hybrid)
  • Seats
    • Automatic Drive Positioner (DTC/Circuit Diagnosis) (Hybrid)
    • Automatic Drive Positioner (Hybrid)
    • Seats (Hybrid)
  • Sun Roof/T-Top/Convertible Top
    • Roof (Hybrid)
  • Windows
    • Glass & Window System (Hybrid)
    • Power Window Control System (Hybrid)
• Brakes
  • Anti-Lock Brakes
    • Brake Control System (With VDC) (DTC/Circuit Diagnosis) (Hybrid)
    • Brake Control System (With VDC) (DTCS) (Hybrid)
    • Brake Control System (With VDC) (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Brake Control System (With VDC) (Symptom Diagnosis & Removal And Installation) (Hybrid)
  • Brakes Control Systems
    • Brake Control System (With VDC) (DTC/Circuit Diagnosis) (Hybrid)
    • Brake Control System (With VDC) (DTCS) (Hybrid)
    • Brake Control System (With VDC) (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Brake Control System (With VDC) (Symptom Diagnosis & Removal And Installation) (Hybrid)
  • Mechanical - Hydraulic
    • Brake System (DTC/Circuit Diagnosis) (Hybrid) (3 Of 3)
    • Brake System (DTCS) (Hybrid) (1 Of 3)
    • Brake System (DTCS) (Hybrid) (2 Of 3)
    • Brake System (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Brake System (Symptom Diagnosis & Removal And Installation) (Hybrid)
  • Parking Brake System (Hybrid)
  • Traction Control
    • Brake Control System (With VDC) (DTC/Circuit Diagnosis) (Hybrid)
    • Brake Control System (With VDC) (DTCS) (Hybrid)
    • Brake Control System (With VDC) (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Brake Control System (With VDC) (Symptom Diagnosis & Removal And Installation) (Hybrid)
• Drivelines & Axles
  • Axle Shafts
    • Front Axle (Hybrid)
    • Rear Axle (Hybrid)
  • Differentials & Drive Axles
    • Rear Axle (Hybrid)
    • Rear Final Drive (Hybrid)
  • Driveshaft & Universal Joints
    • Rear Propeller Shaft (Hybrid)
  • Wheel Hubs
    • Front Axle (Hybrid)
    • Rear Axle (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) (Hybrid)
    • Power Control System (IPDM E/R) (Hybrid)
    • Power Control System (Power Distribution System) (DTC/Circuit Diagnosis) (Hybrid)
    • Power Control System (Power Distribution System) (Hybrid)
    • Power Outlet (Hybrid)
    • Power Supply, Ground & Circuit Elements (Hybrid)
    • Traction Motor System
  • Component Locations
    • OEM Component Harness Location Charts
    • Q70 - Component Locations (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 (Hybrid)
    • Meter, Warning Lamp & Indicator (DTC/Circuit Diagnosis) (Hybrid)
    • Meter, Warning Lamp & Indicator (Hybrid)
  • Horns
    • Horn (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) (Hybrid)
    • Power Control System (IPDM E/R) (Hybrid)
    • Power Control System (Power Distribution System) (DTC/Circuit Diagnosis) (Hybrid)
    • Power Control System (Power Distribution System) (Hybrid)
    • Power Outlet (Hybrid)
    • Power Supply, Ground & Circuit Elements (Hybrid)
    • Traction Motor System
  • 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 (Hybrid)
  • Cooling System (Mechanical)
    • Engine Cooling System (Hybrid)
  • Exhaust System (Hybrid)
  • Fuel System (Hybrid)
  • Engine Lubrication System (Hybrid)
  • Engine Mechanical (Hybrid)
• Engine Performance
  • Emissions
    • Emission Applications
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Engine Control Systems
    • Accelerator Control System (Hybrid)
    • Drive Mode System (Hybrid)
  • Fuel Delivery
    • Fuel System (Hybrid)
  • Mode 6 - INFINITI
  • Specifications
    • Firing Order & Cylinder Identification
  • System
    • Engine Control System (DTC/Circuit Diagnosis) (Hybrid) (3 Of 3)
    • Engine Control System (DTCS) (Hybrid) (1 Of 3)
    • Engine Control System (DTCS) (Hybrid) (2 Of 3)
    • Engine Control System (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Engine Control System (Symptom Diagnosis & Removal And Installation) (Hybrid)
  • Testing & Diagnosis
    • Engine Control System (DTC/Circuit Diagnosis) (Hybrid) (3 Of 3)
    • Engine Control System (DTCS) (Hybrid) (1 Of 3)
    • Engine Control System (DTCS) (Hybrid) (2 Of 3)
    • Engine Control System (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Engine Control System (Symptom Diagnosis & Removal And Installation) (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 (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 (Hybrid)
  • Reset Procedures
    • Maintenance Reminder Light (Reset Procedures)
    • Tire Pressure Monitor Systems
  • Specifications Index
    • Common Specs & Procedures (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) (Hybrid)
    • Heater & Air Conditioning Control System (Hybrid)
    • Heater & Air Conditioning System (Hybrid)
    • Ventilation System (Hybrid)
• Hybrid/Electric Powertrain
  • Battery Management Systems
    • Hybrid Battery System (1 Of 4)
    • Hybrid Battery System (2 Of 4)
    • Hybrid Battery System (3 Of 4)
    • Hybrid Battery System (4 Of 4)
    • Hybrid Control System (DTC/Circuit Diagnosis) (Hybrid) (3 Of 3)
    • Hybrid Control System (DTCS) (Hybrid) (1 Of 3)
    • Hybrid Control System (DTCS) (Hybrid) (2 Of 3)
    • Hybrid Control System (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Hybrid Control System (Symptom Diagnosis & Removal And Installation) (Hybrid)
  • Cooling Systems
    • High Voltage Cooling System
  • Electric Converters and Controllers
    • Hybrid Control System (DTC/Circuit Diagnosis) (Hybrid) (3 Of 3)
    • Hybrid Control System (DTCS) (Hybrid) (1 Of 3)
    • Hybrid Control System (DTCS) (Hybrid) (2 Of 3)
    • Hybrid Control System (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Hybrid Control System (Symptom Diagnosis & Removal And Installation) (Hybrid)
    • Traction Motor System (DTC/Circuit Diagnosis) (Hybrid)
  • Electric Motor Systems
    • Hybrid Control System (DTC/Circuit Diagnosis) (Hybrid) (3 Of 3)
    • Hybrid Control System (DTCS) (Hybrid) (1 Of 3)
    • Hybrid Control System (DTCS) (Hybrid) (2 Of 3)
    • Hybrid Control System (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Hybrid Control System (Symptom Diagnosis & Removal And Installation) (Hybrid)
    • Traction Motor System (DTC/Circuit Diagnosis) (Hybrid)
  • Testing and Diagnosis
    • Hybrid Control System (DTC/Circuit Diagnosis) (Hybrid) (3 Of 3)
    • Hybrid Control System (DTCS) (Hybrid) (1 Of 3)
    • Hybrid Control System (DTCS) (Hybrid) (2 Of 3)
    • Traction Motor System (DTC/Circuit Diagnosis) (Hybrid)
• Maintenance
  • Procedures
    • Maintenance (Hybrid)
    • Maintenance Reminder Light (Reset Procedures)
• Restraints
  • Air Bag, SRS
    • SRS Airbag Control System (DTCS) (Hybrid)
    • SRS Airbag Control System (Hybrid)
    • SRS Airbag System (Hybrid)
  • Restraints Control Systems
    • Seat Belt Control System (DTC/Circuit Diagnosis) (Hybrid)
    • Seat Belt Control System (Hybrid)
    • Seat Belts (Hybrid)
  • Seat Belts
    • Seat Belt Control System (DTC/Circuit Diagnosis) (Hybrid)
    • Seat Belt Control System (Hybrid)
    • Seat Belts (Hybrid)
• Steering
  • Electronic Steering
    • Steering Control System (Hybrid EPS System) (DTC/Circuit Diagnosis) (Hybrid)
    • Steering Control System (Hybrid EPS System) (Hybrid)
  • Manual Steering
    • Steering System (With Heated Steering Wheel) (Hybrid)
    • Steering System (Without Heated Steering Wheel) (Hybrid)
  • Power Steering
    • Steering System (With Heated Steering Wheel) (Hybrid)
    • Steering System (Without Heated Steering Wheel) (Hybrid)
  • Steering Column
    • Steering System (With Heated Steering Wheel) (Hybrid)
    • Steering System (Without Heated Steering Wheel) (Hybrid)
  • Steering Control Systems
    • Steering Control System (Hybrid EPS System) (DTC/Circuit Diagnosis) (Hybrid)
    • Steering Control System (Hybrid EPS System) (Hybrid)
  • Steering Gear
    • Steering System (With Heated Steering Wheel) (Hybrid)
    • Steering System (Without Heated Steering Wheel) (Hybrid)
  • Steering Linkage
    • Steering System (With Heated Steering Wheel) (Hybrid)
    • Steering System (Without Heated Steering Wheel) (Hybrid)
• Suspension
  • Front Suspension (Hybrid)
  • Rear Suspension (Hybrid)
  • INFINITI Wheel Alignment Specifications - Q70
  • Wheels & Tire System
    • Tires, Wheels & Tire Pressure Monitoring System (TPMS) (DTC/Circuit Diagnosis) (Hybrid)
    • Tires, Wheels & Tire Pressure Monitoring System (TPMS) (Hybrid)
• Transmission
  • Automatic Trans
    • Automatic Transmission (DTC/Circuit Diagnosis) (Hybrid)
    • Automatic Transmission (DTCS) (Hybrid)
    • Automatic Transmission (Introduction, Wiring Diagrams And Basic Inspection) (Hybrid)
    • Automatic Transmission (Symptom Diagnosis & Removal And Installation) (Hybrid)
  • Clutch (Hybrid)
  • Transmission Control Systems
    • Drive Mode System (Hybrid)
• External Pages