Repair and Diagnosis

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• Quick Lookups
  • Common Specs & Procedures (Electric)
  • DTC Index (Electric)
  • Electrical Component Locations
  • Fluids
  • Technical Bulletins
    • Campaigns
    • Safety Recalls
    • Technical Service Bulletins
  • Tire Fitment
  • Wiring Diagrams
    • OEM Connector End Views
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Accessories & Equipment
  • Anti-Theft Systems
    • Door Lock System (Preparation) (Electric)
    • Door Lock System (Service Information) (Electric)
    • Door Lock System (Service Specifications) (Electric)
    • Immobilizer System (Diagnostic Codes & Symptom Tests) (Electric)
    • Immobilizer System (Diagnostics- Introduction) (Electric)
    • Power Door Lock Control System (Diagnostics & Symptom Tests) (Electric)
    • Smart Key System (Entry Function) (Diagnostic Codes & Symptom Tests) (Electric)
    • Smart Key System (Entry Function) (Diagnostics - Introduction) (Electric)
    • Smart Key System (Start Function) (Diagnostic Codes & Symptom Tests) (Electric)
    • Smart Key System (Start Function) (Diagnostics - Introduction) (Electric)
    • Theft Deterrent/Keyless Entry System (Preparation) (Electric)
    • Theft Deterrent/Keyless Entry System (Service Information) (Electric)
    • Wireless Door Lock Control System (Diagnostics - Introduction (Electric)
    • Wireless Door Lock Control System (Diagnostics & Symptom Tests) (Electric)
  • Communication Devices
    • Can Communication System (Diagnostic Codes & Symptom Tests) (Electric)
    • Can Communication System (Diagnostics - Introduction) (Electric)
    • Lin Communication System (Diagnostic Codes) (Electric)
    • Lin Communication System (Diagnostics - Introduction) (Electric)
    • Networking (Preparation) (Electric)
    • Networking (Service Information) (Electric)
    • Networking (Service Specifications) (Electric)
  • Entertainment Systems
    • Audio / Video System (Preparation) (Electric)
    • Audio / Video System (Service Information) (Electric)
    • Audio / Video System (Service Specifications) (Electric)
    • Cellular Communication System (Preparation) (Electric)
    • Cellular Communication System (Service Information) (Electric)
    • Cellular Communication System (Service Specifications) (Electric)
    • Safety Connect System (Diagnostic Codes) (Electric)
    • Safety Connect System (Diagnostics - Introduction) (Electric)
  • Exterior Lights
    • Lighting System (Exterior) (Diagnostic Codes & Circuit Tests) (Electric)
    • Lighting System (Exterior) (Diagnostics - Introduction) (Electric)
    • Lighting System (Exterior) (Preparation) (Electric)
    • Lighting System (Exterior) (Service Information) (Electric)
    • Lighting System (Exterior) (Service Specifications) (Electric)
  • Gauges & Instrument Panels
    • Meter / Gauge / Display (Diagnostics - Introduction) (Electric)
    • Meter / Gauge / Display (Diagnostics & Symptom Tests) (Electric)
    • Meter / Gauge / Display (Inspection) (Electric)
    • Meter / Gauge / Display (Preparation) (Electric)
    • Meter / Gauge / Display (Service Information) (Electric)
    • Meter / Gauge / Display (Service Specifications) (Electric)
  • Heated Glass/Defoggers
    • Window Defogger (Diagnostics & Symptom Tests) (Electric)
  • Horns
    • Horn (Inspection) (Electric)
    • Horn (Preparation) (Electric)
    • Horn (Service Information) (Electric)
    • Horn (Service Specifications) (Electric)
  • Infotainment
    • Audio / Video System (Preparation) (Electric)
    • Audio / Video System (Service Information) (Electric)
    • Audio / Video System (Service Specifications) (Electric)
    • Cellular Communication System (Preparation) (Electric)
    • Cellular Communication System (Service Information) (Electric)
    • Cellular Communication System (Service Specifications) (Electric)
    • Navigation System (Diagnostic Codes, Symptom Tests & Circuit Tests) (Electric)
    • Navigation System (Diagnostics - Introduction) (Electric)
    • Navigation System (Preparation) (Electric)
    • Navigation System (Service Information) (Electric)
    • Navigation/Multi Info Display System (Service Specifications) (Electric)
    • Safety Connect System (Diagnostic Codes) (Electric)
    • Safety Connect System (Diagnostics - Introduction) (Electric)
  • Interior/Exterior Trim
    • Exterior Panels / Trim (Preparation) (Electric)
    • Exterior Panels / Trim (Service Information) (Electric)
    • Exterior Panels / Trim (Service Specifications) (Electric)
    • Interior Panels / Trim (Preparation) (Electric)
    • Interior Panels / Trim (Service Information) (Electric)
    • Interior Panels / Trim (Service Specifications) (Electric)
  • Interior/Illumination Lights
    • Lighting System (Interior) (Diagnostics & Circuit Tests) (Electric)
    • Lighting System (Interior) (Preparation) (Electric)
    • Lighting System (Interior) (Service Information) (Electric)
    • Lighting System (Interior) (Service Specifications) (Electric)
  • Mirrors
    • Mirror (Exterior) (Preparation) (Electric)
    • Mirror (Exterior) (Service Information) (Electric)
    • Mirror (Exterior) (Service Specifications) (Electric)
    • Mirror (Interior) (Preparation) (Electric)
    • Mirror (Interior) (Service Information) (Electric)
    • Power Mirror Control System (Inspection) (Electric)
  • Seats
    • Seat Heater (Inspection) (Electric)
    • Seats (Preparation) (Electric)
    • Seats (Service Information) (Electric)
    • Seats (Service Specifications) (Electric)
  • Warning Systems
    • Seat Belt Warning System (Diagnostics & Symptom Tests) (Electric)
    • Vehicle Proximity Notification System (Diagnostics & Circuit Tests) (Electric)
    • Vehicle Proximity Notification System (Preparation) (Electric)
    • Vehicle Proximity Notification System (Service Information) (Electric)
    • Vehicle Proximity Notification System (Service Specifications) (Electric)
  • Window Motors & Regulators
    • Heated Windshield Defroster System (Diagnostic Codes & Symptom Tests) (Electric)
    • Heated Windshield Defroster System (Diagnostics - Introduction) (Electric)
    • Power Window Control System (Diagnostic Codes & Symptom Tests) (Electric)
    • Power Window Control System (Diagnostics - Introduction) (Electric)
    • Windows / Glass (Preparation) (Electric)
    • Windows / Glass (Service Information) (Electric)
    • Windows / Glass (Service Specifications) (Electric)
  • Wiper/Washer Systems
    • Wiper System / Washer System (Inspection) (Electric)
    • Wiper System / Washer System (Preparation) (Electric)
    • Wiper System / Washer System (Service Information) (Electric)
    • Wiper System / Washer System (Service Specifications) (Electric)
• Body & Frame
  • Door Locks
    • Door Lock System (Preparation) (Electric)
    • Door Lock System (Service Information) (Electric)
    • Door Lock System (Service Specifications) (Electric)
    • Immobilizer System (Diagnostic Codes & Symptom Tests) (Electric)
    • Immobilizer System (Diagnostics- Introduction) (Electric)
    • Power Door Lock Control System (Diagnostics & Symptom Tests) (Electric)
    • Smart Key System (Entry Function) (Diagnostic Codes & Symptom Tests) (Electric)
    • Smart Key System (Entry Function) (Diagnostics - Introduction) (Electric)
    • Smart Key System (Start Function) (Diagnostic Codes & Symptom Tests) (Electric)
    • Smart Key System (Start Function) (Diagnostics - Introduction) (Electric)
    • Theft Deterrent/Keyless Entry System (Preparation) (Electric)
    • Theft Deterrent/Keyless Entry System (Service Information) (Electric)
    • Wireless Door Lock Control System (Diagnostics - Introduction (Electric)
    • Wireless Door Lock Control System (Diagnostics & Symptom Tests) (Electric)
  • Exterior Body Panels
    • Charge Lid Opener System (Diagnostics & Symptom Tests) (Electric)
    • Doors / Hatch (Preparation) (Electric)
    • Doors / Hatch (Service Information) (Electric)
    • Doors / Hatch (Service Specifications) (Electric)
  • Exterior/Interior Trim
    • Exterior Panels / Trim (Preparation) (Electric)
    • Exterior Panels / Trim (Service Information) (Electric)
    • Exterior Panels / Trim (Service Specifications) (Electric)
    • Interior Panels / Trim (Preparation) (Electric)
    • Interior Panels / Trim (Service Information) (Electric)
    • Interior Panels / Trim (Service Specifications) (Electric)
  • Mirrors
    • Mirror (Exterior) (Preparation) (Electric)
    • Mirror (Exterior) (Service Information) (Electric)
    • Mirror (Exterior) (Service Specifications) (Electric)
    • Mirror (Interior) (Preparation) (Electric)
    • Mirror (Interior) (Service Information) (Electric)
    • Power Mirror Control System (Inspection) (Electric)
  • Seats
    • Seat Heater (Inspection) (Electric)
    • Seats (Preparation) (Electric)
    • Seats (Service Information) (Electric)
    • Seats (Service Specifications) (Electric)
  • Windows
    • Heated Windshield Defroster System (Diagnostic Codes & Symptom Tests) (Electric)
    • Heated Windshield Defroster System (Diagnostics - Introduction) (Electric)
    • Power Window Control System (Diagnostic Codes & Symptom Tests) (Electric)
    • Power Window Control System (Diagnostics - Introduction) (Electric)
    • Windows / Glass (Preparation) (Electric)
    • Windows / Glass (Service Information) (Electric)
    • Windows / Glass (Service Specifications) (Electric)
• Brakes
  • Anti-Lock Brakes
    • Brake Control System (Preparation) (Electric)
    • Brake Control System (Service Information) (Electric)
    • Brake Control System (Service Specifications) (Electric)
    • Electronically Controlled Brake System (Diagnostic Codes & Symptom Tests) (Electric)
    • Electronically Controlled Brake System (Diagnostics - Introduction) (Electric)
  • Mechanical - Hydraulic
    • Brake System (Front) (Preparation) (Electric)
    • Brake System (Front) (Service Information) (Electric)
    • Brake System (Front) (Service Specifications) (Electric)
    • Brake System (Hydraulic) (Preparation) (Electric)
    • Brake System (Hydraulic) (Service Information) (Electric)
    • Brake System (Hydraulic) (Service Specifications) (Electric)
    • Brake System (Inspection) (Electric)
    • Brake System (Rear) (Preparation) (Electric)
    • Brake System (Rear) (Service Information) (Electric)
    • Brake System (Rear) (Service Specifications) (Electric)
  • Parking Brake System
    • Parking Brake (Inspection) (Electric)
    • Parking Brake (Preparation) (Electric)
    • Parking Brake (Service Information) (Electric)
    • Parking Brake (Service Specifications) (Electric)
  • Traction Control
    • Brake Control System (Preparation) (Electric)
    • Brake Control System (Service Information) (Electric)
    • Brake Control System (Service Specifications) (Electric)
    • Electronically Controlled Brake System (Diagnostic Codes & Symptom Tests) (Electric)
    • Electronically Controlled Brake System (Diagnostics - Introduction) (Electric)
• Drivelines & Axles
  • Axle Shafts
    • Axle & Differential (Preparation) (Electric)
    • Axle & Wheel Hub (Service Specifications) (Electric)
    • Drive Axle Shaft (Service Information) (Electric)
    • Drive Shaft (Inspection) (Electric)
    • Drive Shaft (Preparation) (Electric)
    • Drive Shaft (Service Specifications) (Electric)
  • Differentials & Drive Axles
    • Axle System (Inspection) (Electric)
  • Wheel Hubs
    • Axle & Wheel Hub (Service Specifications) (Electric)
    • Axle Hubs / Steering Knuckle (Service Information) (Electric)
• Electrical
  • Body Electrical
    • Battery Thermometer Sensor (Inspection) (Electric)
    • Main Body Ecu & Power Management Control Ecu (Service Information) (Electric)
    • OEM Connector End Views
    • OEM Electrical Wiring Diagram Abbreviations
    • OEM Electrical Wiring Diagram General Information
    • OEM Electrical Wiring Diagram Glossary Of Terms & Symbols
    • OEM Electrical Wiring Diagram Troubleshooting
    • OEM Electrical Wiring Routing
    • OEM Ground Points
    • OEM Junction Block, Ecu & Fuse/Relay Locations
    • OEM Overall Electrical Wiring Diagram
    • OEM Part Number Of Connectors
    • OEM Power Source (Current Flow Chart)
    • OEM System Circuits
    • Power Distribution (Preparation) (Electric)
    • Power Distribution (Service Specifications) (Electric)
    • Power Outlets (Interior) (Preparation) (Electric)
    • Power Outlets (Interior) (Service Information) (Electric)
  • Charging Systems
    • Charging System (Inspection) (Electric)
    • Charging System (Preparation) (Electric)
    • Charging System (Service Specifications) (Electric)
  • Component Locations
  • Fuses & Circuit Breakers
    • OEM Junction Block, Ecu & Fuse/Relay Locations
  • Gauges
    • Meter / Gauge / Display (Diagnostics - Introduction) (Electric)
    • Meter / Gauge / Display (Diagnostics & Symptom Tests) (Electric)
    • Meter / Gauge / Display (Inspection) (Electric)
    • Meter / Gauge / Display (Preparation) (Electric)
    • Meter / Gauge / Display (Service Information) (Electric)
    • Meter / Gauge / Display (Service Specifications) (Electric)
  • Horns
    • Horn (Inspection) (Electric)
    • Horn (Preparation) (Electric)
    • Horn (Service Information) (Electric)
    • Horn (Service Specifications) (Electric)
  • Motors, Switches, Relays
    • Battery Thermometer Sensor (Inspection) (Electric)
    • Main Body Ecu & Power Management Control Ecu (Service Information) (Electric)
    • OEM Connector End Views
    • OEM Electrical Wiring Diagram Abbreviations
    • OEM Electrical Wiring Diagram General Information
    • OEM Electrical Wiring Diagram Glossary Of Terms & Symbols
    • OEM Electrical Wiring Diagram Troubleshooting
    • OEM Electrical Wiring Routing
    • OEM Ground Points
    • OEM Junction Block, Ecu & Fuse/Relay Locations
    • OEM Overall Electrical Wiring Diagram
    • OEM Part Number Of Connectors
    • OEM Power Source (Current Flow Chart)
    • OEM System Circuits
    • Power Distribution (Preparation) (Electric)
    • Power Distribution (Service Specifications) (Electric)
    • Power Outlets (Interior) (Preparation) (Electric)
    • Power Outlets (Interior) (Service Information) (Electric)
  • Starter
    • Power Switch (Service Information) (Electric)
    • Starting System (Preparation) (Electric)
    • Starting System (Service Specifications) (Electric)
  • Wiring Diagrams
    • OEM Connector End Views
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Engine Mechanical
  • Engine Cooling Fan System (Inspection & Circuit Tests) (Electric)
  • Starter
    • Power Switch (Service Information) (Electric)
    • Starting System (Preparation) (Electric)
    • Starting System (Service Specifications) (Electric)
• Engine Performance
  • Emissions
    • Emission Applications
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Mode 6 - Scion
  • Specifications
    • Firing Order & Cylinder Identification
• General Information
  • Abbreviations
    • Commonly Used Abbreviations - General Information
    • Emission Control Abbreviations
    • Introduction (General Information) (Electric)
  • Basic Trouble Shooting
    • Basic Trouble Shooting - General Information
    • Commonly Used Abbreviations - General Information
    • Emission Control Abbreviations
    • Engine Performance - Trouble Shooting - General Information
    • Introduction (General Information) (Electric)
  • 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 (Electric)
  • 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
    • Introduction (General Information) (Electric)
  • Identification
    • CANADIAN Model Cross-Reference
    • Introduction (General Information) (Electric)
    • Model Code Identification
  • Metric Conversions
    • Engine Displacement Conversion Table - ECAT
    • Metric Conversions
  • OEM General Information
    • Introduction (General Information) (Electric)
    • Standard Bolt (General Information) (Electric)
  • Reset Procedures
    • ATEQ TPMS Reset Procedure (Direct TPM System)
    • Maintenance Reminder Light (Reset Procedures)
    • Tire Pressure Monitor Systems
  • Specifications Index
    • Common Specs & Procedures (Electric)
  • Steering
    • Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
    • Wheel Alignment Theory & Operation - General Information
  • Towing
    • Introduction (General Information) (Electric)
  • Traction Control Disable Procedures
  • Trouble Shooting - Manual Transmission - General Information
• Heating, Ventilation & A/C (HVAC)
  • General Servicing
    • Cabin Air Filter
  • HVAC Control Systems
    • Air Conditioning System (Diagnostic Codes & Circuit Tests) (Electric)
    • Air Conditioning System (Diagnostics - Introduction) (Electric)
    • Air Conditioning System (Preparation) (Electric)
    • Air Conditioning System (Service Information) (Electric)
    • Air Conditioning System (Service Specifications) (Electric)
• Hybrid/Electric Powertrain
  • Battery Management Systems
    • Hybrid Battery Control System (Preparation) (Electric)
    • Hybrid Battery Control System (Service Information) (Electric)
    • Hybrid Battery Control System (Service Specifications) (Electric)
  • Testing and Diagnosis
    • Hybrid Battery System (Diagnostic Codes & Symptom Tests) (Electric)
    • Hybrid Battery System (Diagnostics - Introduction) (Electric)
    • Hybrid Control System (Diagnostic Codes P0516-769 - P0A90-251) (Electric)
    • Hybrid Control System (Diagnostic Codes P0A90-509 - P3004-133) (Electric)
    • Hybrid Control System (Diagnostic Codes P3004-800 & Symptom Tests) (Electric)
    • Hybrid Control System (Diagnostics Introduction) (Electric)
    • Plug-In Charge Control System (Diagnostic Codes (P31E1-421- U0293-449) & Circuit Tests)) (Electric)
    • Plug-In Charge Control System (Diagnostic Codes P0560-117 - P31DE-431) (Electric)
    • Plug-In Charge Control System (Diagnostics Introduction) (Electric)
• Maintenance
  • Procedures
    • Maintenance (Electric)
    • Maintenance Reminder Light (Reset Procedures)
• Restraints
  • Air Bag, SRS
    • Occupant Classification System (Diagnostic Codes & Symptom Tests) (Electric)
    • Occupant Classification System (Diagnostics - Introduction) (Electric)
    • Supplemental Restraint System (Diagnostic Codes B1000/31 - B1690/15) (Electric)
    • Supplemental Restraint System (Diagnostic Codes B1693/81 - B1907/74 & Symptom Tests) (Electric)
    • Supplemental Restraint System (Diagnostics - Introduction) (Electric)
    • Supplemental Restraint System (Preparation) (Electric)
    • Supplemental Restraint System (Service Information) (Electric)
    • Supplemental Restraint System (Service Specifications) (Electric)
  • Restraints Control Systems
    • Seat Belt (Preparation) (Electric)
    • Seat Belt (Service Information) (Electric)
    • Seat Belt (Service Specifications) (Electric)
  • Seat Belts
    • Seat Belt (Preparation) (Electric)
    • Seat Belt (Service Information) (Electric)
    • Seat Belt (Service Specifications) (Electric)
• Steering
  • Manual Steering
    • Power Steering System (Diagnostic Codes & Circuit Tests) (Electric)
    • Power Steering System (Diagnostics - Introduction) (Electric)
    • Power Steering System (Preparation) (Electric)
    • Power Steering System (Service Specifications) (Electric)
    • Steering System (Inspection) (Electric)
  • Power Steering
    • Power Steering System (Diagnostic Codes & Circuit Tests) (Electric)
    • Power Steering System (Diagnostics - Introduction) (Electric)
    • Power Steering System (Preparation) (Electric)
    • Power Steering System (Service Specifications) (Electric)
    • Steering System (Inspection) (Electric)
  • Steering Column
    • Steering Column (Preparation) (Electric)
    • Steering Column (Service Information) (Electric)
    • Steering Column (Service Specifications) (Electric)
    • Steering Lock System (Diagnostic Codes & Symptom Tests) (Electric)
    • Steering Lock System (Diagnostics - Introduction) (Electric)
  • Steering Gear
    • Steering Gear / Linkage (Preparation) (Electric)
    • Steering Gear / Linkage (Service Information) (Electric)
    • Steering Gear / Linkage (Service Specifications) (Electric)
  • Steering Linkage
    • Steering Gear / Linkage (Preparation) (Electric)
    • Steering Gear / Linkage (Service Information) (Electric)
    • Steering Gear / Linkage (Service Specifications) (Electric)
• Suspension
  • Front Suspension
    • Axle Hubs / Steering Knuckle (Service Information) (Electric)
    • Front Suspension (Inspection) (Electric)
    • Front Suspension (Service Information) (Electric)
    • Suspension System (Front) (Preparation) (Electric)
    • Suspension System (Front) (Service Specifications) (Electric)
  • Rear Suspension
    • Rear Suspension (Inspection) (Electric)
    • Rear Suspension (Service Information) (Electric)
    • Suspension System (Rear) (Preparation) (Electric)
    • Suspension System (Rear) (Service Specifications) (Electric)
  • Wheel Alignment
    • Alignment / Handling Diagnosis (Preparation) (Electric)
    • Alignment / Handling Diagnosis (Service Specifications) (Electric)
    • Scion Wheel Alignment Specifications - IQ
    • Wheel Alignment (Service Information) (Electric)
  • Wheels & Tire System
    • Tire & Wheel (Preparation) (Electric)
    • Tire & Wheel (Service Specifications) (Electric)
    • Tire Pressure Monitoring System (Preparation) (Electric)
    • Tire Pressure Monitoring System (Service Specifications) (Electrical)
    • Tire Pressure Warning System (Diagnostic Codes & Circuit Tests) (Electric)
    • Tire Pressure Warning System (Diagnostics Introduction) (Electric)
    • Tire Pressure Warning System (Service Information) (Electric)
    • Tires / Wheel System (Inspection) (Electric)
• Transmission
  • Automatic Trans
    • Hybrid Transaxle (Preparation) (Electric)
    • Hybrid Transaxle (Service Information) (Electric)
    • Hybrid Transaxle (Service Specifications) (Electric)
• External Pages