Repair and Diagnosis

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• Quick Lookups
  • Common Specs & Procedures
    • Common Specs And Procedures
  • DTC Index
  • Electrical Component Locations
    • Electrical Component Locator And Wiring Harness Routing Views
  • Fluids
  • Technical Bulletins
    • Campaigns
    • Safety Recalls
    • Technical Service Bulletins
  • Tire Fitment
  • Wiring Diagrams
    • Component Connector End Views (A3L-B20A)
    • Component Connector End Views (B22-B381)
    • Component Connector End Views (B387A-G65)
    • Component Connector End Views (K182, X3-M145L)
    • Component Connector End Views (K43, X4-K182, X2)
    • Component Connector End Views (K5-K43, X3)
    • Component Connector End Views (M145R-S79RR, (- TSQ))
    • Component Connector End Views (S79RR, (TSQ)-X98)
    • Electrical Center Identification Views
    • Electrical Component Locator And Wiring Harness Routing Views
    • Inline Harness Connector End Views (X140-X250)
    • Inline Harness Connector End Views (X251-X370B)
    • INLINE HARNESS CONNECTOR END VIEWS (X403-X617L, (UH5 and ESG))
    • Inline Harness Connector End Views (X617L, (Uh5 - ESG)-X960G)
    • Splice Pack Connector End Views
    • Using lemon2025'S System Wiring Diagrams
• Accessories & Equipment
  • Anti-Theft Systems
    • Immobilizer System
    • Remote Functions
    • Theft Deterrent
    • Vehicle Access System - Description And Operation
    • Vehicle Access System - Diagnostic Information And Procedures (1 Of 2)
    • Vehicle Access System - Diagnostic Information And Procedures (2 Of 2)
    • Vehicle Access System - Repair Instructions
    • Vehicle Access System - Schematic Wiring Diagrams
    • Vehicle Access System - Specifications
  • Body Interior
    • Secondary And Configurable Customer Controls
    • Vehicle Access System - Description And Operation
    • Vehicle Access System - Diagnostic Information And Procedures (1 Of 2)
    • Vehicle Access System - Diagnostic Information And Procedures (2 Of 2)
    • Vehicle Access System - Repair Instructions
    • Vehicle Access System - Schematic Wiring Diagrams
    • Vehicle Access System - Specifications
  • Collision/Avoidance
    • Driver Assistance Systems - Description And Operation
    • Driver Assistance Systems - Diagnostic Information And Procedures
    • Driver Assistance Systems - Fastener Specifications
    • Driver Assistance Systems - Repair Instructions
    • Driver Assistance Systems - Schematic Wiring Diagrams
    • Driver Monitoring System
    • Image Display Cameras
    • Parking Assistance Systems
  • Communication Devices
    • Data Communications - Diagnostic Information And Procedures (1 Of 5)
    • Data Communications - Diagnostic Information And Procedures (2 Of 5)
    • Data Communications - Diagnostic Information And Procedures (3 Of 5)
    • Data Communications - Diagnostic Information And Procedures (4 Of 5)
    • Data Communications - Diagnostic Information And Procedures (5 Of 5)
    • Data Communications - Fastener Specifications
    • Data Communications - Repair Instructions
    • Data Communications - Schematic Wiring Diagrams
    • Data Link Communications Description And Operation
    • Programming And Setup - All Systems
  • Cruise Control Systems
  • Drivers Assistance Systems - ADAS
    • Driver Assistance Systems - Description And Operation
    • Driver Assistance Systems - Diagnostic Information And Procedures
    • Driver Assistance Systems - Fastener Specifications
    • Driver Assistance Systems - Repair Instructions
    • Driver Assistance Systems - Schematic Wiring Diagrams
    • Driver Monitoring System
    • Image Display Cameras
    • Parking Assistance Systems
  • Entertainment Systems
    • Cellular, Entertainment, And Navigation (1 Of 2)
    • Cellular, Entertainment, And Navigation (2 Of 2)
    • Image Display Cameras
  • Exterior Lights
    • Lighting System - Description And Operation
    • Lighting System - Diagnostic Information And Procedures (1 Of 2)
    • Lighting System - Diagnostic Information And Procedures (2 Of 2)
    • Lighting System - Fastener Specifications
    • Lighting System - Repair Instructions
    • Lighting System - Schematic Wiring Diagrams
  • Gauges & Instrument Panels
    • Displays And Gauges
    • Instrument Panel And Console Trim (1 Of 2)
    • Instrument Panel And Console Trim (2 Of 2)
  • Headlights
    • Lighting System - Description And Operation
    • Lighting System - Diagnostic Information And Procedures (1 Of 2)
    • Lighting System - Diagnostic Information And Procedures (2 Of 2)
    • Lighting System - Fastener Specifications
    • Lighting System - Repair Instructions
    • Lighting System - Schematic Wiring Diagrams
  • Heated Glass/Defoggers
    • Fixed And MOVEABLE Windows
  • Horns And Pedestrian Alerts
  • Ignition Switch/Steering Lock
    • Immobilizer System
  • Infotainment
    • Cellular, Entertainment, And Navigation (1 Of 2)
    • Cellular, Entertainment, And Navigation (2 Of 2)
    • Image Display Cameras
  • Interior/Exterior Trim
    • Bolted Exterior Body Panels And Closures (1 Of 2)
    • Bolted Exterior Body Panels And Closures (2 Of 2)
    • Exterior Trim
    • Floor Coverings And HEADLININGS
    • Instrument Panel And Console Trim (1 Of 2)
    • Instrument Panel And Console Trim (2 Of 2)
    • Interior Trim And Paneling
    • Seat Hardware, Trim, And Upholstery
  • Interior/Illumination Lights
    • Lighting System - Description And Operation
    • Lighting System - Diagnostic Information And Procedures (1 Of 2)
    • Lighting System - Diagnostic Information And Procedures (2 Of 2)
    • Lighting System - Fastener Specifications
    • Lighting System - Repair Instructions
    • Lighting System - Schematic Wiring Diagrams
  • Mirrors
    • Mirror System
  • Seats
    • Power Seats
    • Seat Hardware, Trim, And Upholstery
    • Seat Heating And Seat Cooling System
  • Steering Column Switches
    • Secondary And Configurable Customer Controls
  • Warning Systems
    • Driver Monitoring System
    • Parking Assistance Systems
    • Tire Pressure Monitoring System
  • Window Motors & Regulators
    • Fixed And MOVEABLE Windows
  • Wiper/Washer Systems
    • Wipers And Washers
• Body & Frame
  • Body, Cab Control Systems
    • Secondary And Configurable Customer Controls
    • Vehicle Access System - Description And Operation
    • Vehicle Access System - Diagnostic Information And Procedures (1 Of 2)
    • Vehicle Access System - Diagnostic Information And Procedures (2 Of 2)
    • Vehicle Access System - Repair Instructions
    • Vehicle Access System - Schematic Wiring Diagrams
    • Vehicle Access System - Specifications
  • Door Locks
    • Immobilizer System
    • Remote Functions
    • Theft Deterrent
    • Vehicle Access System - Description And Operation
    • Vehicle Access System - Diagnostic Information And Procedures (1 Of 2)
    • Vehicle Access System - Diagnostic Information And Procedures (2 Of 2)
    • Vehicle Access System - Repair Instructions
    • Vehicle Access System - Schematic Wiring Diagrams
    • Vehicle Access System - Specifications
  • Exterior Body Panels
    • Air/Wind Noise
    • Bolted Exterior Body Panels And Closures (1 Of 2)
    • Bolted Exterior Body Panels And Closures (2 Of 2)
    • Bumpers And Fascias
    • Squeaks And Rattles
  • Exterior/Interior Trim
    • Bolted Exterior Body Panels And Closures (1 Of 2)
    • Bolted Exterior Body Panels And Closures (2 Of 2)
    • Exterior Trim
    • Floor Coverings And HEADLININGS
    • Instrument Panel And Console Trim (1 Of 2)
    • Instrument Panel And Console Trim (2 Of 2)
    • Interior Trim And Paneling
    • Seat Hardware, Trim, And Upholstery
  • Frames, Subframes & Crossmembers
    • Frame And Underbody
  • Ignition Switch/Steering Lock
    • Immobilizer System
  • Mirrors
    • Mirror System
  • Seats
    • Power Seats
    • Seat Hardware, Trim, And Upholstery
    • Seat Heating And Seat Cooling System
  • Sun Roof/T-Top/Convertible Top
    • Sunroof
  • Towing Systems
    • TRAILERING Systems
  • Fixed And MOVEABLE Windows
• Brakes
  • Anti-Lock Brakes
    • Antilock Brake System
  • Mechanical - Hydraulic
    • Disc Brakes
    • Hydraulic Brakes
  • Parking Brake System
  • Traction Control
    • Antilock Brake System
• Drivelines & Axles
  • Axle Shafts
    • Wheel Drive Shafts
• Electrical
  • Body Electrical
    • 12 V Starting And Charging
    • Component Connector End Views - Index
    • Component Connector End Views (A3L-B20A)
    • Component Connector End Views (B22-B381)
    • Component Connector End Views (B387A-G65)
    • Component Connector End Views (K182, X3-M145L)
    • Component Connector End Views (K43, X4-K182, X2)
    • Component Connector End Views (K5-K43, X3)
    • Component Connector End Views (M145R-S79RR, (- TSQ))
    • Component Connector End Views (S79RR, (TSQ)-X98)
    • Electric Drive Transmission (P8N)
    • Electric Drive Transmission (S80)
    • Electrical Center Identification Views
    • Electrical Component Locator And Wiring Harness Routing Views
    • Inline Harness Connector End Views - Index
    • Inline Harness Connector End Views (X140-X250)
    • Inline Harness Connector End Views (X251-X370B)
    • INLINE HARNESS CONNECTOR END VIEWS (X403-X617L, (UH5 and ESG))
    • Inline Harness Connector End Views (X617L, (Uh5 - ESG)-X960G)
    • Master Electrical Component List
    • Plug-In Charging
    • Power Outlets
    • Splice Pack Connector End Views
    • Wire And Connector Repair (1 Of 2)
    • Wire And Connector Repair (2 Of 2)
    • Wiring Systems And Power Management - Description And Operation
    • Wiring Systems And Power Management - Diagnostic Information And Procedures
    • Wiring Systems And Power Management - Fastener Specifications
    • Wiring Systems And Power Management - Repair Instructions
    • Wiring Systems And Power Management - Schematic Wiring Diagrams
    • Wiring Systems And Power Management - Special Tools And Equipment
  • Charging Systems
    • 12 V Starting And Charging
    • Plug-In Charging
  • Component Locations
    • Electrical Component Locator And Wiring Harness Routing Views
  • Gauges
    • Displays And Gauges
    • Instrument Panel And Console Trim (1 Of 2)
    • Instrument Panel And Console Trim (2 Of 2)
  • Horns And Pedestrian Alerts
  • Motors, Switches, Relays
    • 12 V Starting And Charging
    • Component Connector End Views - Index
    • Component Connector End Views (A3L-B20A)
    • Component Connector End Views (B22-B381)
    • Component Connector End Views (B387A-G65)
    • Component Connector End Views (K182, X3-M145L)
    • Component Connector End Views (K43, X4-K182, X2)
    • Component Connector End Views (K5-K43, X3)
    • Component Connector End Views (M145R-S79RR, (- TSQ))
    • Component Connector End Views (S79RR, (TSQ)-X98)
    • Electric Drive Transmission (P8N)
    • Electric Drive Transmission (S80)
    • Electrical Center Identification Views
    • Electrical Component Locator And Wiring Harness Routing Views
    • Inline Harness Connector End Views - Index
    • Inline Harness Connector End Views (X140-X250)
    • Inline Harness Connector End Views (X251-X370B)
    • INLINE HARNESS CONNECTOR END VIEWS (X403-X617L, (UH5 and ESG))
    • Inline Harness Connector End Views (X617L, (Uh5 - ESG)-X960G)
    • Master Electrical Component List
    • Plug-In Charging
    • Power Outlets
    • Splice Pack Connector End Views
    • Wire And Connector Repair (1 Of 2)
    • Wire And Connector Repair (2 Of 2)
    • Wiring Systems And Power Management - Description And Operation
    • Wiring Systems And Power Management - Diagnostic Information And Procedures
    • Wiring Systems And Power Management - Fastener Specifications
    • Wiring Systems And Power Management - Repair Instructions
    • Wiring Systems And Power Management - Schematic Wiring Diagrams
    • Wiring Systems And Power Management - Special Tools And Equipment
  • Starter
    • 12 V Starting And Charging
  • Wiring Diagrams
    • Component Connector End Views (A3L-B20A)
    • Component Connector End Views (B22-B381)
    • Component Connector End Views (B387A-G65)
    • Component Connector End Views (K182, X3-M145L)
    • Component Connector End Views (K43, X4-K182, X2)
    • Component Connector End Views (K5-K43, X3)
    • Component Connector End Views (M145R-S79RR, (- TSQ))
    • Component Connector End Views (S79RR, (TSQ)-X98)
    • Electrical Center Identification Views
    • Electrical Component Locator And Wiring Harness Routing Views
    • Inline Harness Connector End Views (X140-X250)
    • Inline Harness Connector End Views (X251-X370B)
    • INLINE HARNESS CONNECTOR END VIEWS (X403-X617L, (UH5 and ESG))
    • Inline Harness Connector End Views (X617L, (Uh5 - ESG)-X960G)
    • Splice Pack Connector End Views
    • Using lemon2025'S System Wiring Diagrams
• Engine Mechanical
  • Lubrication System
    • Maintenance And Lubrication
  • Starter
    • 12 V Starting And Charging
• Engine Performance
  • Emissions
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • System
    • Data Communications - Diagnostic Information And Procedures (1 Of 5)
  • Testing & Diagnosis
    • Data Communications - Diagnostic Information And Procedures (1 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
  • Hoist/Jack
    • General Information
  • Identification
    • CANADIAN Model Cross-Reference
    • General Information
  • Metric Conversions
    • Engine Displacement Conversion Table - ECAT
    • Metric Conversions
  • OEM General Information
    • Dangers, Warnings, And Cautions
    • General Information
    • Vehicle Diagnostic Information - Proactive Alerts Description And Operation
    • Vehicle Diagnostic Information And Procedures
    • Vehicle Diagnostic Scan Tool Information (1 Of 2)
    • Vehicle Diagnostic Scan Tool Information (2 Of 2)
    • Vibration Diagnosis And Correction
  • Reset Procedures
    • Maintenance Reminder Light (Reset Procedures)
    • Programming And Setup - All Systems
  • RPO Codes
    • General Information
  • Specifications Index
    • Common Specs And Procedures
  • Steering
    • Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
    • Wheel Alignment Theory & Operation - General Information
  • Trouble Shooting - Manual Transmission - General Information
• Heating, Ventilation & A/C (HVAC)
  • HVAC Control Systems
    • Heating, Ventilation, And Air Conditioning (1 Of 2)
    • Heating, Ventilation, And Air Conditioning (2 Of 2)
    • HVAC - Automatic
• Hybrid/Electric Powertrain
  • Battery Management Systems
    • HYBRID/EV HIGH VOLTAGE ENERGY STORAGE - DIAGNOSTIC INFORMATION AND PROCEDURES (1 Of 2)
    • Hybrid/EV High Voltage Energy Storage - Diagnostic Information And Procedures (2 Of 2)
    • Hybrid/EV High Voltage Energy Storage - Drive Motor Battery System Description
    • Hybrid/EV High Voltage Energy Storage - Fastener Specifications
    • Hybrid/EV High Voltage Energy Storage - Hybrid/Electric Vehicle Battery Pack Identification
    • Hybrid/EV High Voltage Energy Storage - Repair Instructions
    • Hybrid/EV High Voltage Energy Storage - Schematic Wiring Diagrams
    • Hybrid/EV High Voltage Energy Storage - Special Tools And Equipment
    • Plug-In Charging
  • Cooling Systems
    • Hybrid/EV System Heating And Cooling (1 Of 2)
    • Hybrid/EV System Heating And Cooling (2 Of 2)
  • Electric Converters and Controllers
    • Hybrid/EV Controls
    • HYBRID/EV HIGH VOLTAGE ENERGY STORAGE - DIAGNOSTIC INFORMATION AND PROCEDURES (1 Of 2)
    • Hybrid/EV High Voltage Energy Storage - Diagnostic Information And Procedures (2 Of 2)
    • Hybrid/EV High Voltage Energy Storage - Drive Motor Battery System Description
    • Hybrid/EV High Voltage Energy Storage - Fastener Specifications
    • Hybrid/EV High Voltage Energy Storage - Hybrid/Electric Vehicle Battery Pack Identification
    • Hybrid/EV High Voltage Energy Storage - Repair Instructions
    • Hybrid/EV High Voltage Energy Storage - Schematic Wiring Diagrams
    • Hybrid/EV High Voltage Energy Storage - Special Tools And Equipment
  • Electric Motor Systems
    • Electric Drive Transmission (P8N)
    • Electric Drive Transmission (S80)
    • Electronic Transmission Range Select
  • Testing and Diagnosis
    • Hybrid/EV Controls
    • HYBRID/EV HIGH VOLTAGE ENERGY STORAGE - DIAGNOSTIC INFORMATION AND PROCEDURES (1 Of 2)
    • Hybrid/EV High Voltage Energy Storage - Diagnostic Information And Procedures (2 Of 2)
    • Hybrid/EV High Voltage Energy Storage - Drive Motor Battery System Description
    • Hybrid/EV High Voltage Energy Storage - Fastener Specifications
    • Hybrid/EV High Voltage Energy Storage - Hybrid/Electric Vehicle Battery Pack Identification
    • Hybrid/EV High Voltage Energy Storage - Repair Instructions
    • Hybrid/EV High Voltage Energy Storage - Schematic Wiring Diagrams
    • Hybrid/EV High Voltage Energy Storage - Special Tools And Equipment
    • Plug-In Charging
• Maintenance
  • Procedures
    • Maintenance And Lubrication
• Restraints
  • Air Bag, SRS
    • Supplemental Restraints System
  • Restraints Control Systems
    • Seat Belts
  • Seat Belts
• Steering
  • Electronic Steering
    • Rear Wheel Steering
  • Manual Steering
    • Power Steering System
  • Power Steering System
  • Steering Column
    • Steering Wheel And Column
• Suspension
  • Front Suspension
    • Front Suspension
    • Suspension General Diagnosis
  • Rear Suspension
    • Rear Suspension
    • Suspension General Diagnosis
  • Suspension Control Systems
    • Suspension Controls
  • Wheel Alignment
  • Wheels & Tire System
    • Tire Pressure Monitoring System
    • Tires And Wheels
• Transmission
  • Automatic Trans
    • Electric Drive Transmission (P8N)
    • Electric Drive Transmission (S80)
    • Electronic Transmission Range Select
  • Transmission Control Systems
    • Electric Drive Transmission (P8N)
    • Electric Drive Transmission (S80)
• External Pages