Repair and Diagnosis

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• Quick Lookups
  • Common Specs & Procedures (Exc Hybrid)
  • DTC Index (Exc Hybrid)
  • Electrical Component Locations
    • Q50 -- Component Locations (Except Hybrid)
  • Fluids
  • Technical Bulletins
    • Campaigns
    • Safety Recalls
    • Technical Service Bulletins
  • Tire Fitment
  • Wiring Diagrams
    • OEM Connector End Views (Exc Hybrid)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Accessories & Equipment
  • Anti-Theft Systems
    • Door & Lock (Exc Hybrid)
    • Security Control System (Exc Hybrid)
  • Collision/Avoidance
    • Cruise Control System (ACSD) (Exc Hybrid)
    • Driver Assistance System (Active Lane Control) (Exc Hybrid)
    • Driver Assistance System (ADAS Control Unit- Diagnostic Trouble Codes (DTCS) And Component R&R) (Exc Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Introduction) (Exc Hybrid)
    • Driver Assistance System (Chassis Control) (Exc Hybrid)
    • Driver Assistance System (Diagnostic Trouble Codes (DTCS) Symptom Tests & Component R&R) (Exc Hybrid)
    • Driver Assistance System (Introduction) (Exc Hybrid)
    • Intelligent Cruise Control System (ICC) (Exc Hybrid)
  • Communication Devices
    • Body Control System (Exc Hybrid)
    • Drive Mode System (INFINITI Intuition) (Except Hybrid)
    • LAN System (Can Fundamental) (Exc Hybrid)
    • LAN System (Can Gateway) (Exc Hybrid)
    • LAN System (Can System - Type 1) (Exc Hybrid)
    • LAN System (Can System - Type 10) (Exc Hybrid)
    • LAN System (Can System - Type 11) (Exc Hybrid)
    • LAN System (Can System - Type 12) (Exc Hybrid)
    • LAN System (Can System - Type 2) (Exc Hybrid)
    • LAN System (Can System - Type 3) (Exc Hybrid)
    • LAN System (Can System - Type 4) (Exc Hybrid)
    • LAN System (Can System - Type 5) (Exc Hybrid)
    • LAN System (Can System - Type 6) (Exc Hybrid)
    • LAN System (Can System - Type 7) (Exc Hybrid)
    • LAN System (Can System - Type 8) (Exc Hybrid)
    • LAN System (Can System - Type 9) (Exc Hybrid)
    • LAN System (Can) (Exc Hybrid)
  • Cruise Control Systems
    • Cruise Control System (ACSD) (Exc Hybrid)
    • Driver Assistance System (Active Lane Control) (Exc Hybrid)
    • Driver Assistance System (ADAS Control Unit- Diagnostic Trouble Codes (DTCS) And Component R&R) (Exc Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Introduction) (Exc Hybrid)
    • Driver Assistance System (Chassis Control) (Exc Hybrid)
    • Driver Assistance System (Diagnostic Trouble Codes (DTCS) Symptom Tests & Component R&R) (Exc Hybrid)
    • Driver Assistance System (Introduction) (Exc Hybrid)
    • Intelligent Cruise Control System (ICC) (Exc Hybrid)
  • Drivers Assistance Systems - ADAS
    • Cruise Control System (ACSD) (Exc Hybrid)
    • Driver Assistance System (Active Lane Control) (Exc Hybrid)
    • Driver Assistance System (ADAS Control Unit- Diagnostic Trouble Codes (DTCS) And Component R&R) (Exc Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Introduction) (Exc Hybrid)
    • Driver Assistance System (Chassis Control) (Exc Hybrid)
    • Driver Assistance System (Diagnostic Trouble Codes (DTCS) Symptom Tests & Component R&R) (Exc Hybrid)
    • Driver Assistance System (Introduction) (Exc Hybrid)
    • Intelligent Cruise Control System (ICC) (Exc Hybrid)
  • Entertainment Systems
    • Audio, Visual & Navigation System (Around View Monitor System - Diagnostic Trouble Codes (DTCS) & Symptom Tests) (Exc Hybrid)
    • Audio, Visual & Navigation System (Around View Monitor System - Introduction) (Exc Hybrid)
    • Audio, Visual & Navigation System (INFINITI INTOUCH) (Diagnostic Trouble Codes (DTCS) & Symptom Tests (Exc Hybrid)
    • Audio, Visual & Navigation System (INFINITI INTOUCH) (Introduction) (Exc Hybrid)
    • Audio, Visual & Navigation System (Rear View Monitor System) (Exc Hybrid)
    • Audio, Visual & Navigation System (Telematics) (Exc Hybrid)
  • Exterior Lights
    • Exterior Lighting System (Exc Hybrid)
  • Gauges & Instrument Panels
    • Instrument Panel (Exc Hybrid)
    • Meter, Warning Lamp & Indicator (Exc Hybrid)
  • Headlights
    • Exterior Lighting System (Exc Hybrid)
  • Heated Glass/Defoggers
    • Defogger (Exc Hybrid)
  • Horns
    • Horn (Exc Hybrid)
  • Infotainment
    • Audio, Visual & Navigation System (Around View Monitor System - Diagnostic Trouble Codes (DTCS) & Symptom Tests) (Exc Hybrid)
    • Audio, Visual & Navigation System (Around View Monitor System - Introduction) (Exc Hybrid)
    • Audio, Visual & Navigation System (INFINITI INTOUCH) (Diagnostic Trouble Codes (DTCS) & Symptom Tests (Exc Hybrid)
    • Audio, Visual & Navigation System (INFINITI INTOUCH) (Introduction) (Exc Hybrid)
    • Audio, Visual & Navigation System (Rear View Monitor System) (Exc Hybrid)
    • Audio, Visual & Navigation System (Telematics) (Exc Hybrid)
  • Interior/Exterior Trim
    • Interior (Exc Hybrid)
  • Interior/Illumination Lights
    • Interior Lighting System (Exc Hybrid)
  • Mirrors
    • Mirrors (With ADP) (Exc Hybrid)
    • Mirrors (Without ADP) (Exc Hybrid)
  • Seats
    • Automatic Drive Positioner (Exc Hybrid)
    • Seats (Exc Hybrid)
  • Warning Systems
    • Cruise Control System (ACSD) (Exc Hybrid)
    • Driver Assistance System (Active Lane Control) (Exc Hybrid)
    • Driver Assistance System (ADAS Control Unit- Diagnostic Trouble Codes (DTCS) And Component R&R) (Exc Hybrid)
    • Driver Assistance System (ADAS Control Unit) (Introduction) (Exc Hybrid)
    • Driver Assistance System (Chassis Control) (Exc Hybrid)
    • Driver Assistance System (Diagnostic Trouble Codes (DTCS) Symptom Tests & Component R&R) (Exc Hybrid)
    • Driver Assistance System (Introduction) (Exc Hybrid)
    • Intelligent Cruise Control System (ICC) (Exc Hybrid)
    • Tires, Wheels & Tire Pressure Monitoring System (TPMS) (Exc Hybrid)
    • Warning Chime System (Exc Hybrid)
  • Window Motors & Regulators
    • Glass & Window System (Exc Hybrid)
    • Power Window Control System (Exc Hybrid)
  • Wiper/Washer Systems
    • Wiper & Washer (Exc Hybrid)
• Body & Frame
  • Door Locks
    • Door & Lock (Exc Hybrid)
    • Security Control System (Exc Hybrid)
  • Exterior Body Panels
    • Door & Lock (Exc Hybrid)
    • Exterior (Exc Hybrid)
  • Exterior/Interior Trim
    • Interior (Exc Hybrid)
  • Mirrors
    • Mirrors (With ADP) (Exc Hybrid)
    • Mirrors (Without ADP) (Exc Hybrid)
  • Seats
    • Automatic Drive Positioner (Exc Hybrid)
    • Seats (Exc Hybrid)
  • Sun Roof/T-Top/Convertible Top
    • Roof (Sunroof) (Exc Hybrid)
  • Windows
    • Glass & Window System (Exc Hybrid)
    • Power Window Control System (Exc Hybrid)
• Brakes
  • Anti-Lock Brakes
    • Brake Control System (Forward Emergency Braking) (Exc Hybrid)
    • Brake Control System (VDC - Diagnostic Trouble Codes (DTCS) Symptom Tests And Component R&R) (Exc Hybrid)
    • Brake Control System (VDC - Introduction)
  • Brakes Control Systems
    • Brake Control System (Forward Emergency Braking) (Exc Hybrid)
    • Brake Control System (VDC - Diagnostic Trouble Codes (DTCS) Symptom Tests And Component R&R) (Exc Hybrid)
    • Brake Control System (VDC - Introduction)
  • Mechanical - Hydraulic
    • Brake System (Exc Hybrid)
  • Parking Brake System (Exc Hybrid)
  • Traction Control
    • Brake Control System (Forward Emergency Braking) (Exc Hybrid)
    • Brake Control System (VDC - Diagnostic Trouble Codes (DTCS) Symptom Tests And Component R&R) (Exc Hybrid)
    • Brake Control System (VDC - Introduction)
• Drivelines & Axles
  • Axle Shafts
    • Front Axle (2WD) (Exc Hybrid)
    • Rear Axle (Exc Hybrid)
  • Differentials & Drive Axles
    • Front Final Drive (F160A) (Exc Hybrid)
    • Rear Axle (Exc Hybrid)
    • Rear Final Drive (R190) (Exc Hybrid)
  • Driveshaft & Universal Joints
    • Front Propeller Shaft (2S56A) (Exc Hybrid)
    • Rear Propeller Shaft (3F80A-R) (Exc Hybrid)
    • Rear Propeller Shaft (3S80A-R) (Exc Hybrid)
  • Wheel Hubs
    • Front Axle (2WD) (Exc Hybrid)
    • Rear Axle (Exc Hybrid)
• Electrical
  • Body Electrical
    • OEM Connector End Views (Exc Hybrid)
    • Power Control System (IPDM E/R) (Exc Hybrid)
    • Power Control System (Power Distribution System) (Exc Hybrid)
    • Power Outlet (Exc Hybrid)
    • Power Supply, Ground & Circuit Elements (Exc Hybrid)
  • Charging Systems
    • Charging System (Exc Hybrid)
  • Q50 -- Component Locations (Except Hybrid)
  • Gauges
    • Instrument Panel (Exc Hybrid)
    • Meter, Warning Lamp & Indicator (Exc Hybrid)
  • Horns
    • Horn (Exc Hybrid)
  • Motors, Switches, Relays
    • OEM Connector End Views (Exc Hybrid)
    • Power Control System (IPDM E/R) (Exc Hybrid)
    • Power Control System (Power Distribution System) (Exc Hybrid)
    • Power Outlet (Exc Hybrid)
    • Power Supply, Ground & Circuit Elements (Exc Hybrid)
  • Starter
    • Starting System (Exc Hybrid)
  • Wiring Diagrams
    • OEM Connector End Views (Exc Hybrid)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Engine Mechanical
  • Cooling Fan
    • Engine Cooling System (Exc Hybrid)
  • Cooling System (Mechanical)
    • Engine Cooling System (Exc Hybrid)
  • Exhaust System (Exc Hybrid)
  • Fuel System (Exc Hybrid)
  • Engine Lubrication System (Exc Hybrid)
  • Mechanical
    • Engine Mechanical (Disassembly, R&R And Specifications) (Exc Hybrid)
    • Engine Mechanical (Introduction And Component R&R) (Exc Hybrid)
  • Starter
    • Starting System (Exc Hybrid)
• Engine Performance
  • Emissions
    • Emission Applications
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Engine Control Systems
    • Accelerator Control System (Exc Hybrid)
  • Fuel Delivery
    • Fuel System (Exc Hybrid)
  • Mode 6 - INFINITI
  • Specifications
    • Firing Order & Cylinder Identification
  • System
    • Engine Control System (Diagnostic Trouble Codes (DTCS) P0181 - P2101) (Exc Hybrid)
    • Engine Control System (Diagnostic Trouble Codes (DTCS) P1236 - P219B & Symptom Tests) (Exc Hybrid)
    • Engine Control System (Introduction & Diagnostic Trouble Codes (DTCS) U0101 - P0175) (Exc Hybrid)
    • Engine Control System (Introduction) (Exc Hybrid)
  • Testing & Diagnosis
    • Engine Control System (Diagnostic Trouble Codes (DTCS) P0181 - P2101) (Exc Hybrid)
    • Engine Control System (Diagnostic Trouble Codes (DTCS) P1236 - P219B & Symptom Tests) (Exc Hybrid)
    • Engine Control System (Introduction & Diagnostic Trouble Codes (DTCS) U0101 - P0175) (Exc Hybrid)
    • Engine Control System (Introduction) (Exc 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 (Exc 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
  • Hoist/Jack
    • General Information (Exc Hybrid)
  • Identification
    • CANADIAN Model Cross-Reference
    • General Information (Exc Hybrid)
  • Metric Conversions
    • Engine Displacement Conversion Table - ECAT
    • Metric Conversions
  • OEM General Information
    • Automatic Stop/Start Disable
    • General Information (Exc Hybrid)
  • Reset Procedures
    • ATEQ TPMS Reset Procedure
    • BARTEC TPMS Reset Procedure
    • Maintenance Reminder Light (Reset Procedures)
    • Tire Pressure Monitor Systems
  • Specifications Index
    • Common Specs & Procedures (Exc Hybrid)
  • Steering
    • Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
    • Wheel Alignment Theory & Operation - General Information
  • Towing
    • General Information (Exc Hybrid)
  • Traction Control Disable Procedures
  • Trouble Shooting - Manual Transmission - General Information
• Heating, Ventilation & A/C (HVAC)
  • HVAC Control Systems
    • Heater & Air Conditioning Control System (Exc Hybrid)
    • Heater & Air Conditioning System (Exc Hybrid)
    • Ventilation System (Exc Hybrid)
• Maintenance
  • Procedures
    • Maintenance (Exc Hybrid)
    • Maintenance Reminder Light (Reset Procedures)
  • Schedule
    • Maintenance (Exc Hybrid)
• Restraints
  • Air Bag, SRS
    • SRS Airbag (Exc Hybrid)
  • Passive Restraints
    • Seat Belts (Exc Hybrid)
  • Restraints Control Systems
    • Seat Belt Control System (Exc Hybrid)
    • SRS Airbag Control (Exc Hybrid)
  • Seat Belts
    • Seat Belt Control System (Exc Hybrid)
    • SRS Airbag Control (Exc Hybrid)
• Steering
  • Manual Steering
    • Steering System (Direct Adaptive Steering) (Exc Hybrid)
    • Steering System (Vehicle Speed Sensitive P/S) (Exc Hybrid)
  • Power Steering
    • Steering System (Direct Adaptive Steering) (Exc Hybrid)
    • Steering System (Vehicle Speed Sensitive P/S) (Exc Hybrid)
  • Steering Control Systems
    • Steering Control System - Direct Adaptive Steering (Diagnostic Trouble Codes (DTCS) & Symptom Tests) (Exc Hybrid)
    • Steering Control System - Direct Adaptive Steering (Inspection) (Exc Hybrid)
    • Steering Control System (Direct Adaptive Steering - Introduction) (Exc Hybrid)
    • Steering Control System (Vehicle Speed Sensitive P/S) (Exc Hybrid)
• Suspension
  • Front Suspension (2WD) (Exc Hybrid)
  • Rear Suspension (Exc Hybrid)
  • Wheel Alignment
    • Front Suspension (2WD) (Exc Hybrid)
    • INFINITI Wheel Alignment Specifications - Q50
    • Rear Suspension (Exc Hybrid)
  • Wheels & Tire System
    • Tires, Wheels & Tire Pressure Monitoring System (TPMS) (Exc Hybrid)
• Transmission
  • Automatic Trans
    • Automatic Transmission (Diagnostic Trouble Codes (DTCS) & Symptom Tests) (Exc Hybrid)
    • Automatic Transmission (Disassembly & Assembly) (Exc Hybrid)
    • Automatic Transmission (Introduction) (Exc Hybrid)
• External Pages