Repair and Diagnosis

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• Quick Lookups
  • Electrical Component Locations
    • Fuses & Circuit Breakers
  • Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
    • Wiring Diagrams
• Accessories & Equipment
  • Gauges & Instrument Panels
    • TOYOTA
  • Steering Column Switches
    • Steering Wheel & Column Switches
• Brakes
  • Mechanical - Hydraulic
    • Brake System Trouble Shooting
    • Brakes
• Drivelines & Axles
  • Differentials & Drive Axles
    • Drive Axle Trouble Shooting
    • Drive Axles
    • Gear Tooth Contact Patterns
  • Wheel Hubs
    • Wheel Bearing Adjustment
• Electrical
  • Body Electrical
    • Steering Wheel & Column Switches
    • TOYOTA
  • Charging Systems
    • Alternators & Regulators
    • Charging System Troubleshooting
    • NIPPONDENSO Alternators
    • NIPPONDENSO Regulators
  • Component Locations
    • Fuses & Circuit Breakers
  • Fuses & Circuit Breakers
  • Gauges
    • TOYOTA
  • Motors, Switches, Relays
    • Steering Wheel & Column Switches
    • TOYOTA
  • Starter
    • Starter Controls - NIPPONDENSO
    • Starters - NIPPONDENSO Direct Drive
  • Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
    • Wiring Diagrams
• Engine Mechanical
  • Auxiliary Emission Control Systems
    • Air Injection System
    • Air Injection Systems
    • Air Suction System
    • Catalytic Converters
    • Crankcase Ventilation
    • Deceleration Fuel Cut System
    • Evaporative Emissions System
    • Exhaust Gas RECIRCULATION
    • High Altitude Compensation (HAC) System
    • Hot Idle COMPENSATOR
    • Mixture Control System
    • Spark Control/Delay Systems
    • Thermostatic Air Cleaner
    • Throttle Positioner System
    • Vacuum Diagrams
    • Vacuum Switching Valves
  • Exhaust
    • Air Injection System
    • Air Injection Systems
    • Air Suction System
    • Catalytic Converters
    • Exhaust Gas RECIRCULATION
  • Fuel System
    • AISAN 2-Barrel Carburetors
    • Carburetor Trouble Shooting
    • Deceleration Fuel Cut System
    • Evaporative Emissions System
  • Mechanical
    • 20 R 4 Cylinder
  • Starter
    • Starter Controls - NIPPONDENSO
    • Starters - NIPPONDENSO Direct Drive
• Engine Performance
  • Emissions
    • EGR Function Testing - TOYOTA
    • Emission Applications - 1968-83 - Except Diesel
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Engine Control Systems
    • Air Injection Systems
    • Mixture Control System
  • Fuel Delivery
    • AISAN 2-Barrel Carburetors
    • Carburetor Trouble Shooting
    • Deceleration Fuel Cut System
    • Evaporative Emissions System
  • Ignition System
    • Distributors & Ignition Systems
    • NIPPONDENSO Electronic Ignition System
    • Spark Control/Delay Systems
  • Specifications
    • Distributors & Ignition Systems
    • Tune-Up Specifications
  • Tune-Up
    • Distributors & Ignition Systems
    • NIPPONDENSO Electronic Ignition System
    • Spark Control/Delay Systems
    • Tune-Up Procedures - 4-Cylinder
    • Tune-Up Specifications
  • Vacuum Diagrams
  • Wiring Diagrams
• General Information
  • Abbreviations
    • Commonly Used Abbreviations - General Information
    • Emission Control Abbreviations
  • Basic Trouble Shooting
    • Basic Trouble Shooting - General Information
    • Brake System Trouble Shooting
    • Charging System Troubleshooting
    • Commonly Used Abbreviations - General Information
    • Drive Axle Trouble Shooting
    • Emission Control Abbreviations
    • Engine Performance - Trouble Shooting - General Information
    • Manual & Power Steering Troubleshooting
    • Suspension Trouble Shooting
    • Wheel Alignment (Troubleshooting)
  • 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
  • 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
  • Steering
    • Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
    • Wheel Alignment Theory & Operation - General Information
  • Trouble Shooting - Manual Transmission - General Information
• Maintenance
  • Procedures
    • Alternators & Regulators
    • Ball Joint Checking
    • Wheel Bearing Adjustment
• Steering
  • Manual Steering
    • Manual & Power Steering Troubleshooting
    • Steering Gears & Linkage
  • Power Steering
    • Manual & Power Steering Troubleshooting
    • Steering Gears & Linkage
  • Steering Column
    • Steering Columns
    • Steering Wheel & Column Switches
  • Steering Gears & Linkage
  • Steering Linkage
    • Steering Gears & Linkage
• Suspension
  • Front Suspension
    • Ball Joint Checking
    • Front Suspension
    • Suspension Trouble Shooting
  • Wheel Alignment
    • Wheel Alignment (Specifications)
    • Wheel Alignment (Troubleshooting)